Research Vision & Supervisors

The Amsterdam Shoulder and Elbow Center of Expertise invests in scientific research by supporting projects that try to get a better understanding of the biology and biomechanics of shoulder and elbow pathology. As well as a multidiciplinary clinical setting, the center encourages multidiciplinary research. In addition, the projects are not limited to a single institution. Collaboration between multiple institutions is the key ingredient to facilitating exchange of expertise and high quality research. On this page we introduce our current projects, PhD students and research support:


Projects & PhD students


Improving dynamic ultrasound examination, treatment protocols and uniform decision making

Introduction of project coordinator Marianne Larsen van Gastel.
Marianne is a physical- and manual therapist working with in- and outpatients suffering from shoulder pathology in the Ziekenhuis Amstelland. In 2016 she graduated as Clinical Epidemiologist from University of Amsterdam and has since then been involved in several research projects.

Project summary:
After both conservative and surgical treatment of shoulder instability, re-dislocations and subluxations are frequently seen. That leaves us with a paucity in the visualisation and treatment of instability of the shoulder. Also when preparing the patient for return to play there is little consensus regarding the criteria leading to a safe return to play. The project of Marianne addresses these challenges and contributes to improvement of dynamic ultrasound examination, treatment protocols and uniform decision making.

https://www.linkedin.com/in/mariannelarsenvangastel/

https://www.researchgate.net/profile/Marianne_Gastel


Physical examination in elbow pathology

Introduction of PhD student and project coordinator Elisa Zwerus
During her medical training at Maastricht University, Elisa started performing research at the OLVG hospital (Amsterdam, The Netherlands). Her research focusses on the range of motion and physical examination of the elbow and is a collaboration between the OLVG hospital, the Amsterdam University Medical Centre and Amphia Hospital (Breda, The Netherlands). In 2019 she started her Orthopedic training at Maastricht University Medical Centre, currently working in VieCuri Medical Centre (Venlo, The Netherlands).

Project summary
The first and yet finished part of the project focused on determining normative values and reliability of measurements for the elbow range of motion. Our current work focusses on physical examination tests in the elbow. If physical examination is reliable enough to rule in or rule out pathology, sometimes additional diagnostic imaging such as MRI could be omitted. However, without adequate performance of the tests and knowledge on diagnostic accuracy, an examiner is not able to interpret physical examination of the elbow.

https://www.linkedin.com/in/elisazwerus/

https://www.researchgate.net/profile/Elisa_Zwerus


Clinical- and patient reported outcomes of acromioclavicular injuries

Introduction of PhD student and project coordinator Daniël Verstift:
While finishing his medical degree at Amsterdam Medical Centre (AMC) Daniël started doing research on the acromioclavicular joint, and in particular acromioclavicular joint dislocation and osteoarthritis. He worked as a resident in general surgery for one year before he returned to OLVG hospital to start as an orthopaedic resident and to continue his research.

Project summary:
There are many controversies regarding the optimal treatment of acromioclavicular joint injuries. For example when it comes to the indication and optimal surgical technique for high-grade acromioclavicular joint dislocation. Also, most outcomes in research on the acromioclavicular joint is based on outcomes generated for overall shoulder pathology. One of his current projects is to validate a specific acromioclavicular outcome score to contribute to the uniform reporting of clinical outcomes. In his research Daniël targets clinical- and patient reported outcomes of acromioclavicular injuries to aid in the treatment decision making process and to guide patient- and practitioner expectations.


Safety and complications of elbow arthroscopy

Introduction of PhD student and project coordinator Nick Hilgersom:
My name is Nick Hilgersom and I obtained my medical degree at the Academic Medical Center/University of Amsterdam in 2015. After my graduation, I started working on my research regarding elbow arthroscopy besides my clinical work. In 2018 I was fortunate to be able to broaden my research skills at the Massachusetts General Hospital’s Sports Medicine Center (Harvard Medical School, Boston, USA), with an additional focus on distal biceps and triceps tendon injuries. In 2019, I started my Orthopaedic training at OLVG (ROGO Midden-West).

Project summary:
My PhD project is about elbow arthroscopy with a specific focus on safety and complications (in particular nerve injuries). Elbow arthroscopy can be used for a wide variety of elbow pathology. However, due to the small work space inside the elbow joint, as well as the close proximity of nerves, a high degree of technical skill is required to perform it safely. My PhD aims to investigate the occurrence of neurological complications after elbow arthroscopy and how to safely perform elbow arthroscopy.

linkedin.com/in/nick-hilgersom-58b43a18

https://www.researchgate.net/profile/Nick_Hilgersom/research


Assessment and Treatment of Elbow Fracture Dislocations and its sequelae

Introduction of PhD student and project coordinator Huub de Klerk:
My name is Huub de Klerk, and I started conducting research at the Department of Orthopedic Surgery of OLVG (Amsterdam, the Netherlands) during the second year of Medicine. After obtaining my bachelor’s degree, I started a PhD trajectory with promotors at Flinders Medical Centre (Flinders University, Adelaide, Australia), UMC Groningen (Rijksuniversiteit Groningen, the Netherlands), and VU University Medical Center (VU Amsterdam, the Netherlands). For the upcoming two years, I will continue my research at Massachusetts General Hospital’s SORG Orthopaedic Research Group (Harvard Medical School, Boston, USA).

Project summary:
As part of my PhD, I will develop decision support through intercontinental studies to determine the most appropriate treatment for each individual patient with a dislocating elbow fracture. It is of utmost importance to recognize the general pattern of complex elbow fracture-dislocations, as concomitant ligamentous injuries can be predicted based on the morphologic characteristics of the fracture fragments. Treatment algorithms in fracture care could help assess these fracture patterns. However, these have so far been based on small series of dozens of patients treated by a single surgeon, which also involves a selection bias of surgeons. The developed decision support will be incorporated into an Artificial Intelligence-driven algorithm (based on a Convolutional Neural Network augmented by Machine Learning). Implementing this algorithm into clinical practice will ensure that the correct treatment for both bone and soft tissue will be chosen more often.

https://www.linkedin.com/in/huub-de-klerk-b62b88141

https://www.researchgate.net/profile/Huub-Klerk-2


Associations of Shoulder Functionality with Mental and Social Health factors

Introduction of PhD student and project coordinator Melle Broekman
After Melle finished his bachelor of Medicine he started as a researcher at the the Department of Orthopedic Surgery of OLVG. This resulted in a PhD candidateship for which a collaboration between the Vrije Universiteit van Amsterdam, Rijksuniversiteit Groningen and Dell Medical Centre (The University of Texas at Austin) was set up.  In September 2021 he moved to Austin to continue his research there.

Project summary
Patient Reported Outcome Measures (PROMs) are widely used determining both functionality and mental health. Evidence shows that mental health factors may have a greater association with functionality in surgical conditions than pathophysiology, but are not yet being implemented in treatment options. Melle’s research primarily focusses on the associations of pathophysiological, mental and social health factors with magnitude of capability in shoulder conditions measured by PROMs.

Lesions associated with anterior shoulder dislocations

Introduction of PhD student and project coordinator Cain Rutgers:
During his bachelor of medicine at the Vrije Universiteit (VU), Cain wrote a thesis regarding shoulder instability that was considered to be best of the bachelor and was pre-nominated for the VU thesis awards. Alongside a career in middle-distance running as two-times national champion (under 18 years and as university student), he continued his research efforts by coordinating interdisciplinary projects at the OLVG departments of orthopaedic surgery and radiology. He is currently working on an innovative project that entails the accurate visualisation of bone tissue in the shoulder with MRI imaging through a deep-learning software.


Project summary:
In the instable and osteoarthritic shoulder, bone and soft tissue lesions are common. These lesions play an important role in the risk of a recurrent dislocation and the failure of operative treatment. In order to accurately visualise bone and soft tissue in and around the shoulder, both an MRI and CT scan are desired. However, undergoing two scans is a burden for patients and leads to high costs. Deep-learning software, trained to visualise bone on MRI scans, may allow for accurate visualisation of bone and soft tissue with just a single modality. By comparing these so-called synthetic CT (sCT) images to conventional CT, this project aims to determine the accuracy of sCT in the instable and osteoarthritic shoulder.

https://www.linkedin.com/in/cain-rutgers-bsc-5355711b4/

https://www.researchgate.net/profile/Cain-Rutgers



Optimizing patient outcomes for proximal humerus fractures

Introduction of PhD student and project coordinator Stijn Mennes
After obtaining his Bachelor’s degree in medicine at the University of Utrecht, Stijn Mennes started conducting research at the department of Orthopaedic Surgery at OLVG (Amsterdam, The Netherlands). As part of his PhD, he manages a study at OLVG on non-operative treatment for surgical neck fractures (SURF study). In September 2023, he will move to Adelaide (Australia) to work on other projects at Flinders Medical Centre.

Project summary:
Stijn’s PhD focusses on the implementation of Artificial Intelligence (AI) in surgical care for shoulder fractures. He works on developing a machine learning driven prediction model that can accurately predict mortality in geriatric patients suffering from a proximal humerus fracture. This prediction model may aid orthopaedic surgeons and patients in clinical decision-making. Moreover, he will work on the development of an algorithm that can detect shoulder fractures on CT scans. With his research, Stijn hopes to reduce unnecessary complications and costs, and improve outcomes for patients suffering from a shoulder fracture.

Linkedin

Researchgate


Treatment of long head biceps tendon and superior labrum injuries

Introduction of PhD student and project coordinator Igor Shirinskiy:
During his master’s degree of Medicine at the Vrije Universiteit van Amsterdam, Igor began conducting research in the OLVG hospital in Amsterdam. He started with a couple of projects about the biceps, which soon led to a Phd position focusing on the long head biceps tendon and the superior labrum. In June 2024, Igor finished his master’s degree in medicine and in the upcoming year he will be working as a research fellow at the Alps Surgery Institute in Annecy, France. There he will coordinate two randomized controlled trials among many other projects.

Project summary:
This PhD project focuses on advancing the understanding and treatment of long head biceps tendon and superior labrum injuries. It aims to bridge the gaps in the current literature, from the pathomechanisms to clinical outcomes. The project studies the origin and significance of the Popeye Sign, the pathomechanism of SLAP lesions, and the varying return to sport rates after treatment of SLAP lesions. The project evaluates novel treatment techniques, compares outcomes of different procedures, and conducts a cost-effectiveness analysis. It also explores factors influencing surgeons’ decision-making for treatment of biceps tendon injuries. Through these studies, the project aims to shed light on several debated points in the field of proximal biceps tendon and superior labrum injuries.

Linkedin

Researchgate


Factors that influence the choice between reverse and anatomic total shoulder arthroplasty

Introduction of PhD student and project coordinator Dries Boulidam:

Dries began his scientific career during a research internship at the Alps Surgery Institute in Annecy, France, in 2023, where he initiated his first orthopedic research project focusing on shoulder arthroplasty. During this time, he started developing projects on the pathology of the long head of the biceps tendon. Throughout his clinical clerkships, he continued to collaborate on various studies related to shoulder arthroplasty in partnership with the Dutch National Arthroplasty Registry (LROI). In early 2026, Dries will return to the Alps Surgery Institute as a research fellow to coordinate two randomized controlled trials, along with several other projects.

Project summary

Dries’ research aims to identify factors that influence the choice between reverse and anatomic total shoulder arthroplasty and to identify factors that influence the survival of the prosthesis. In addition, his work seeks to advance the understanding of the pathology of the long head of the biceps tendon and to investigate the most effective surgical treatment for this condition, including a comprehensive cost-effectiveness analysis. These projects are designed to give insights to clinical decision-making and improve patient outcomes in shoulder surgery.

Linkedin

Researchgate


Patient-specific factors and implant selection in shoulder arthroplasty

Introduction of PhD student and project coordinator Wouter van der Poel:
During his master’s degree in Medicine at Erasmus University Rotterdam, he completed a scientific research internship at the Alps Surgery Institute in Annecy, France. From August 2022, he spent five months conducting research under the supervision of Arno Macken, Geert Buijze and Thibault Lafosse, focusing on shoulder arthroplasty. During this period, he gained extensive experience in clinical research and scientific writing, while also enjoying the unique combination of lake and mountain life in Annecy.

Following this internship, he continued working on the initiated research projects alongside the remainder of his master’s program, which resulted in several peer-reviewed publications. He graduated from medical school at Erasmus University Rotterdam in August 2025. His senior clinical rotation was completed at the Department of Orthopaedics at Erasmus MC, where his interest in orthopaedic surgery further developed. To broaden his clinical experience, he started working as a junior doctor (ANIOS) in General Surgery at Reinier de Graaf Hospital in Delft in October 2025.
 
During his senior rotation, he established contact with Prof. Dr. med. Karl Wieser from the Balgrist University Hospital in Zurich, Switzerland. In collaboration with Prof. Wieser, he plans to continue his research in shoulder arthroplasty. The current plan is to conduct six months of research in Zurich starting November 2027, followed by continuation of the project in the Netherlands. The PhD trajectory will be completed at Erasmus University Rotterdam, supported by a supervisory team including Prof. dr. Eygendaal, Prof. dr. Van den Bekerom, Arthur van Noort MD PhD and Arno Macken MD PhD.

Project summary:
Shoulder arthroplasty is an increasingly performed procedure for degenerative and post-traumatic shoulder pathology. Despite advances in implant design and surgical techniques, complications and suboptimal outcomes remain a challenge. This PhD project focuses on improving outcomes after shoulder arthroplasty by gaining better insight into implant selection, surgical indications and patient-specific factors associated with success or failure.

By combining clinical data from high-volume shoulder centers in Switzerland and the Netherlands, this project aims to contribute to evidence-based decision making in shoulder arthroplasty. The coming period will focus on initiating new studies, securing research funding and strengthening international collaboration. Ultimately, the goal is to optimize patient-specific treatment strategies and improve long-term outcomes in shoulder arthroplasty.

Linkedin

Researchgate


Sequelae of upper extremity fractures and novel 3D measurement techniques

Introduction of PhD student and project coordinator Jort Wiersma:
Jort began his research journey during his Master’s in Medicine at Utrecht University, conducting research at the Department of Orthopedic Surgery at OLVG in Amsterdam. Building on this experience, he started his PhD project under the supervision of promotors at UMC Groningen (University of Groningen) and VU University Medical Center in Amsterdam. Currently, Jort is conducting his research at the Hand and Arm Service of Massachusetts General Hospital (Harvard Medical School) in Boston, USA. In the summer of 2026, he will return to the Netherlands to complete his final year of medical school.

Project summary:
Jort’s PhD investigates the sequelae that may develop after fractures of the upper extremity, with a particular emphasis on osteoarthritis in the ulnohumeral joint. His work takes a holistic approach, aiming to identify the factors that contribute to the development of these sequelae, as well as those linked to poor outcomes once they occur. In addition, the project seeks to develop new methods to measure and understand their overall impact.

One of his projects seeks to redefine articular surface incongruity, traditionally measured in 2D, by introducing a novel 3D measurement technique. Taking measurments in 3D could improve the measurments accuracy and reliability. This advancement could provide surgeons with better tools for decision-making regarding surgical treatment and enable more personalized care for patients.

Linkedin

Researchgate


Optimizing treatment strategies for high-grade AC joint dislocations

Introduction of PhD student and project coordinator Eduard van Eecke:
Eduard is an orthopaedic surgeon who completed his medicine studies at the Katholieke Universiteit Leuven (Belgium) in 2019. After rotations at AZ Delta (Roeselare), AZ Groeninge (Kortrijk), OLVG (Amsterdam), and University Hospitals Leuven, he finished his orthopaedic surgery residency in 2025. He is currently pursuing advanced fellowship training in shoulder surgery at Schulthess Clinic (Zurich, CH) and Queensland Unit for Advanced Shoulder Research (Brisbane, AU).

Project summary:
Within shoulder surgery, Eduard’s research focus is particularly on decision-making and the management of high-grade acromioclavicular joint injuries. Since 2023, he has initiated several research projects aimed at optimizing treatment strategies and outcomes, as part of his PhD at VU Amsterdam under the guidance of Prof. Dr. Michel Van den Bekerom. He is currently working on projects studying the long-term results of non-operative management for acute, high-grade AC joint dislocations.

Linkedin

Researchgate


Improving outcomes after locking plate fixation of proximal humerus fractures

Introduction of PhD student and project coordinator Chemene Kool:
During my Bachelor of Medicine in 2024, Chemene first became involved in clinical research in orthopaedic trauma surgery at Tergooi Medical Centre, The Netherlands. During her waiting period, before starting her clinical rotations of the Master in 2025, she further developed her research activities under the supervision of Dr. L. Kok (orthopaedic surgeon) and Dr. D. Baas (clinical research coordinator) in Tergooi MC. This collaboration eventually developed into a PhD trajectory affiliated with Vrije Universiteit Amsterdam. Currently, Chemene is in the final phase of her medical training and completing her clinical rotations at Amsterdam UMC, while simultaneously conducting her PhD research.

Project summary:
The first phase of this PhD project consists of a clinical case series conducted in 2024, retrospectivly evaluating the outcomes of displaced proximal humerus fractures treated with locking plate fixation combined with femoral head allograft augmentation.

Building upon this work, a prospective randomized controlled trial was initiated at Tergooi MC in May 2025: HIPPI Shoulder – Hip-allograft in Proximal Humerus Fractures versus Plate Implantation Alone. This ongoing trial compares locking plate fixation with and without femoral head allograft augmentation in order to determine whether structural graft augmentation reduces fixation failure and improves clinical outcomes.

In parallel, a systematic review focusing on the definition and determinants of fixation failure after osteosynthesis in proximal humerus fracture is being conducted. Additional projects are currently being developed, including biomechanical studies evaluating strategies to improve medial hinge support.

Overall, this PhD project aims to establish clear definitions of fixation failure after locking plate fixation of proximal humerus fractures, identify determinants associated with fixation failure, and translate these findings into improved surgical strategies for augmentation and revision.

Linkedin

Researchgate


Finished PhD trajectories

Tim Kraal – Treatment options for frozen shoulder
My name is Tim Kraal and I finished my medical training at the VU University and completed my orthopedic training in Amsterdam (Slotervaart and AMC) and Amphia hospital Breda. I was lucky to have the opportunity to fulfill a fellowship in orthopaedic sports medicine at UBC – Vancouver. My thesis focused on frozen shoulders, a unique and challenging condition.  It is seen in around 2-5% of the general population.  The thesis gives more insight into pathophysiology, non-surgical treatment with injections and physiotherapy  and a surgical intervention called “manipulation under anesthesia”. A link to the thesis can be found here: Thesis (uva.nl).

https://nl.linkedin.com/in/tim-kraal-a35b5b8


Jan Louwerens – Evaluating treatment options for calcific tendinopathy of the rotator cuff 
My name is Jan Louwerens and I started working as a junior research doctor at the Spaarne Ziekenhuis in 2013 after graduating from medical school at the VU University in Amsterdam. I was lucky enough to extend these first steps in shoulder research to a PhD project under supervision of dr. Arthur van Noort (Spaarne Gasthuis) and dr. Michel van den Bekerom (OLVG). The thesis focussed on improving the care for patients with calcific tendinitis of the rotator cuff, with an emphasis on evaluating the effectiveness of extracorporeal shockwave therapy (ESWT) and ultrasound-guided needling. First, by giving insight in the prevalence and radiographic assessment of the condition. Second, by providing a comprehensive literature overview exploring all minimally invasive treatment options, and to compare these results with surgical treatment. Finally, by evaluating the outcome of a randomized controlled trial comparing high-energy ESWT and ultrasound-guided needling in patients with refractory rotator cuff calcific tendinitis (RCCT). All clinical studies were conducted in the Spaarne Gasthuis Hoofddorp. I succesfully defended my thesis at the University of Amsterdam in November 2020 and expect to complete my orthopaedic training (Noordwest Ziekenhuisgroep, Radboud University Medical Centre, Spaarne Gasthuis Hospital) in June 2021. In the summer of 2021 I intend to move temporarily to Adelaide, Australia, to start a one-year orthopaedic trauma fellowship at Flinders Medical Centre. A link to the thesis can be found here: Thesis.pdf (uva.nl)

https://nl.linkedin.com/in/jan-louwerens-7530028a

https://www.researchgate.net/profile/Jan-Louwerens


Hassanin Alkaduhimi – The Hill-Sachs lesion: Challenges in diagnostics and treatment
After Hassanin finished his medical degree in 2014, he started performing research regarding shoulder instability. As part of his PhD project he traveled to perform research projects in the Massachusetts General hospital. After returning to the Netherlands he also worked as a resident in general surgery and orthopedic surgery resulting in the start of his orthopedic surgery resident training in April 2019. There are many challenges regarding the diagnosis and management of shoulder instability. To be able to treat shoulder instability one must be able to determine the chance of recurrence and thus be able to determine associated lesions. It is also essential to know how to manage a dislocation, when to perform a surgical procedure, and if you decide for surgery which surgical procedure you would perform. The project of Hassanin addresses these problems and contributes to improvement of treatment protocols and uniform decision making. A link to the thesis can be found here: Thesis.pdf (uva.nl)

https://www.linkedin.com/in/halkaduhimi/

https://www.researchgate.net/profile/Hassanin_Alkaduhimi


Navin Gurnani – The Latissimus Dorsi Transfer for irreparable rotator cuff tears Navin completed his medical training at the Leiden University Medical Center and started his orthopaedic training in 2016 at the Vrije Universiteit (Amsterdam, NL). The training continued in the OLVG (Amsterdam, NL), Spaane Gasthuis (Hoofddorp, NL), Radboud University Medical Center (Nijmegen, NL). He is currently working at the Noordwest Ziekenhuisgroep (Alkmaar, NL). He started as a research fellow in 2019 with thesis; the Latissimus Dorsi Transfer for irreparable rotator cuff tears. This project is a collaboration of 5 centers; OLVG, Vrije Universiteit, Spaane Gasthuis, READE (Rehabilitation Center, Amsterdam, NL) and Delft University of Technology (Delft, NL). The Latissimus Dorsi Transfer (LDT) is reported to increase motion and decrease pain in patients with a clinical pseudoparalysis and a massive posterosuperior rotator cuff tear (MPRCT). However, there are still controversies with regard to the kinematics, Latissimus Dorsi activity (LDA) and the effect on function. Our aim is to evaluate the thoracohumeral (TH) and scapulohumeral (SH) motion, muscle activity, strength and clinical outcome after a Latissimus Dorsi Transfer (LDT) in comparison to the asymptomatic contralateral shoulder. In addition, the LDT will be assessed by ultrasound and MRI. A link to the thesis can be found here: Thesis.pdf (uva.nl)


Lukas Verweij – Traumatic Anterior Shoulder Dislocation: What is required to define optimal treatment strategies?

Lukas started out as a research assistant at the Department of Orthopedic Surgery of OLVG during his bachelor of Medicine. After obtaining the bachelor degree, a collaboration between the Amsterdam Shoulder and Elbow Center of Expertise (ASECE), the Department of Orthopedic Surgery of the Amsterdam UMC and Biomedical Engineering Department of the Amsterdam UMC was started to apply for the AMC MD-PhD scholarship (https://www.amc.nl/web/leren/graduate-school/phd-1/mdphd-scholarship.htm). The application was successful and this allowed him to complete his PhD at Amsterdam UMC, which primary focus is recurrence risk in traumatic anterior shoulder dislocation. Determining recurrence risk is challenging, as there are many of factors that contribute to the stability of the shoulder. For example, glenoid bone loss, a Hill-Sachs lesion, neuromusculair control and muscle strength are factors that play a role in shoulder stability. Glenoid bone loss is used as a parameter to predict recurrence risk. However, this is not the only factor that determines this risk and how do you measure something that is not there? Advances in technology created the opportunity to analyze 3D-models of the humerus and scapula. This PhD project evaluated current factors used to predect recurrence risk and identified potential new factors by analyzing the interaction between the humerus and scapula. A link to the thesis can be found here: Traumatic anterior shoulder dislocation (uva.nl)

https://www.linkedin.com/in/lukas-verweij-b97565109/

https://www.researchgate.net/profile/Lukas-Verweij


Rik Molenaars – Identification, prevention, and rehabilitation of ulnar collateral ligament injuries in throwing athletes

After obtaining his medical degree at the University of Amsterdam/Academic Medical Center in 2017, Rik has been working at Massachusetts General Hospital’s Sports Medicine Center (Harvard Medical School, Boston, USA), focusing on overuse injuries of the elbow in throwing athletes. His main research targets the identification, prevention and rehabilitation of ulnar collateral ligament (UCL) injury in baseball pitchers. His work was supported by the Hendrik-Muller Foundation, the Anna Fonds|NOREF and an MGH Research Stipend. In 2020, Rik started his residency in Sports Medicine at the Canisius-Wilhelmina Hospital in Nijmegen. UCL injuries are increasingly common among overhead throwing athletes in the USA, especially in young baseball pitchers. The anterior bundle of the UCL is the main stabilizer of the elbow during the overhead throwing motion (regarded by many as ‘the most violent motion in sports’) and injury to this ligament often requires surgical reconstruction. Furthermore, insufficiency of the UCL has been suggested to be the underlying cause of a variety of other elbow complaints. In his projects, Rik has covered a variety of topics, including the pathoanatomy of the anterior bundle of the UCL, the clinical value of an acute popping sensation for significant UCL injury, and the usefulness of stress radiographs in the assessment of UCL injury severity. With his background in both physical therapy as well as (sports) medicine, the focal point of Rik’s future endeavors will be on pathological biomechanics of the throwing motion and clinical prevention and rehabilitation programs for overhead athletes. A link to the thesis can be found here: ULNAR COLLATERAL LIGAMENT INSUFFICIENCY OF THE ELBOW IN OVERHEAD ATHLETES (Erasmus)

https://www.researchgate.net/profile/Rik_Molenaars


Arno Macken – Techniques in shoulder and elbow arthroplasty

Arno started his scientific career with a research internship at the Hand and Upper Extremity Service of the Massachusetts General Hospital (Harvard Medical School, Boston, USA) in 2019. During his master of Medicine at the Vrije Universiteit he continued working on several studies focussing on total elbow and shoulder arthroplasty with the Orthopaedic Department at the Amphia Hospital in Breda and the Dutch National Arthroplasty Registry (LROI), which led to a PhD position at the Erasmus Medical Centre in Rotterdam under the supervision of Prof. Denise Eygendaal. In June 2022, Arno finished his master’s degree with a senior internship at the Orthopaedic Department of OLVG Hospitals in Amsterdam. He currently works as a research fellow at the Alps Surgery Institute in Annecy, France. The primary focus of his PhD project is to address several gaps in the literature with regards to shoulder and elbow arthroplasty. In several completed studies, the use and outcomes after shoulder and elbow arthroplasty were mapped and reported. Through his ongoing projects, he aims to shed light on several techniques and choices which remain a point of discussion, such as the surgical approach, use of a bone graft, repair of the subscapularis tendon, the amount of radial mismatch, and the method of pre-operative disinfection. A link to the thesis can be found here: Key insights in total shoulder and elbow arthroplasty (pure.eur.nl).

https://www.linkedin.com/in/arno-macken

https://www.researchgate.net/profile/Arno-Macken


Ted van Iersel – Patient orientated management of anterior shoulder instability

Ted started in May 2020 as a research student at the Shoulder & Elbow unit of the Department of Orthopedic Surgery of OLVG during his master of Medicine at the Vrije Universiteit Amsterdam. He initiated the SPORTS-study, a multicentre collaboration between OLVG, Deventer Ziekenhuis, Medisch Centrum Jan van Goyen, Spaarne Gasthuis, Bergman Clinics, and CMH, led by Dr. van Deurzen. In 2021, he finished a review about bone augmentation (revision) procedures and the FOCUS study. For this patient-centered research, he received the Prof. Dr. René Marti prize from the Dutch Orthopedic Association (NOV). Having recently finished his master’s degree, his work focuses on the SPORTS study, a review about patients’ considerations regarding return to sport, and the MATASI trial led by Prof. Dr. van den Bekerom. This randomized controlled study compares the standard protocol with a new rehabilitation protocol focusing on fear reduction for (re)dislocation of the shoulder. This is conducted in collaboration with multiple hospitals and many physiotherapists throughout the Netherlands. For the MATASI trial, Ted and his research group received the SECEC-ESSSE (European Society for Surgery of the Shoulder and Elbow) clinical research grant of €20,000. The main focus of these projects is to gain more insight into sports-related shoulder instability and patient perception of this subject. For inquiries regarding these projects, Ted can be contacted at t.vaniersel@olvg.nl. A link to the thesis can be found here: Patient orientated management of anterior shoulder instability (vu.nl).

https://nl.linkedin.com/in/tedvaniersel

https://www.researchgate.net/profile/Theodore_Van_Iersel


Reinier Spek – Shoulder fractures and implementation of Artificial Intelligence (AI)

In 2019, Reinier Spek graduated from medical school at the University of Utrecht. He completed his final internship at the department of orthopedic surgery at OLVG Amsterdam, where he was involved in several research projects. Following his graduation, he started his PhD on shoulder fractures at OLVG Amsterdam and moved to Adelaide, Australia, a few months later to continue his projects at Flinders Medical Center. As part of his PhD, Reinier managed a study at OLVG about the outcomes of non-operative treatment of shoulder fractures. His thesis also focused on the application of Artificial Intelligence (AI) algorithms and 3D virtual planning in the field of shoulder surgery. His work included developing AI-driven prediction models to estimate the probability of unsatisfactory outcomes after complex shoulder fractures, as well as estimating the probability of revision surgery in patients with shoulder arthroplasties. Furthermore, he developed a convolutional neural network for the automated detection of shoulder fractures and evaluated the effect of a new virtual 3D planning software for the surgical treatment of complex shoulder fractures. A link to the thesis can be found here: Shoulder fractures and implementation of Artificial Intelligence (AI) (research.rug.nl).

https://nl.linkedin.com/in/reinier-spek-23175220a

https://www.researchgate.net/profile/Reinier-Spek-2


Sanne van Spanning – Risk factors for recurrence of shoulder instability

During her master’s degree in Medicine at the University of Amsterdam, Sanne started conducting research at the OLVG hospital in Amsterdam. After graduating in 2021, she began her PhD project focusing on risk factors for recurrent shoulder instability. As part of her work, she developed a machine learning algorithm for recurrence after Bankart repairs together with Dr. Lafosse, a pioneer of shoulder surgery, in Annecy, France. Her research addressed shoulder instability, a common condition that limits patients in activities of daily living and sports and is associated with long-term complications such as osteoarthritis. Because there remains an ongoing debate regarding the most effective treatment, her project examined the various risk factors that contribute to treatment failure. Using the machine learning algorithm developed during her research, patient-specific risks of recurrence following a Bankart repair can now be calculated pre-operatively to aid in decision-making for the most suitable treatment. A link to the thesis can be found here: Risk factors for recurrence of shoulder instability (vu.nl).

https://www.linkedin.com/in/sanne-van-spanning-9b3210214/

https://www.researchgate.net/profile/Sanne-Van-Spanning-2


Movement Sciences


The research of the Faculty of Behavioural and Movement Sciences is characterized by high quality, innovation, collaboration with other disciplines and social relevance. The faculty is is leading in research that provides new insights into the foundations of human behaviour and movement. These foundations may be both biological and social and everything in between. Behavioural and Movement Sciences beliefs that good research requires a multidisciplinary approach. This multidisciplinary approach is evident in the cooperation with research institutes, national research schools and other academic partnerships. With their research they respond to social developments and look for outcomes that will bring them further.


Research support


The research institute Joint Research of OLVG facilitates and supports development and execution of scientific research within the Department of Orthopedics. Furthermore, Joint Research guarantees the quality of scientific research. Currently, there are two research coordinators that work at Joint Research: Nienke Willigenburg and Sigrid Vorrink. They support research of the Shoulder and Elbow that is being performed in the OLVG or is associated with the OLVG.