Derek F.P. van Deurzen

• MD PhD
• Medical Doctor at OLVG

Purpose The aim of this study is to investigate the influence of patient‐specific factors, including age, lifestyle considerations as well as the extent of injury according to the Rockwood classification (RW), on the surgeon's decision‐making in the choice between operative and nonoperative treatment for acute, high‐grade acromioclavicular (AC) joi...

Background Given that shoulder instability mostly affects young patients, it is likely that return to active duty (RTAD) is an important factor in the military population. However, knowledge on factors associated with failure to RTAD in this patient group following arthroscopic Bankart repair (ABR) and Latarjet is limited. Purpose The aims were to...

Background Professional athletes navigate a multitude of unique challenges associated to sport-specific factors (e.g., training, travel and competition) and non-sport factors (e.g., performance pressure, stress and anxiety) that can interfere with healthy sleep behaviors. Sleep plays a key role in proper biopsychosocial development as well as short...

Background Standardized consensus-based radiological reports for shoulder instability may improve clinical quality, reduce heterogeneity, and reduce workload. Therefore, the aim of this study was to determine important elements for the x-ray, magnetic resonance imaging (MRI) arthrography (MRA), and computed tomography (CT) report, the extent of var...

In unstable shoulders, excessive anteroinferior position of the humeral head relative to the glenoid can lead to a dislocation. Measuring humeral head position could therefore be valuable in quantifying shoulder laxity. The aim of this study was to measure (1) position of the humeral head relative to the glenoid and (2) joint space thickness during...

The aim of this systematic review was to collect evidence on the following 10 technical aspects of glenoid baseplate fixation in reverse total shoulder arthroplasty (rTSA): screw insertion angles; screw orientation; screw quantity; screw length; screw type; baseplate tilt; baseplate position; baseplate version and rotation; baseplate design; and an...

Background The aim of this study was to identify items that healthcare providers and/or patients consider important to include in a questionnaire for clinical trials and cohort studies in shoulder instability research. This could serve as a basis to develop a core outcome set for shoulder instability research. Methods Healthcare providers and pati...

Background Standardized reporting leads to high-quality data and can reduce administration time. The aim of this study was to (1) get an insight into the variability of what is considered important to report in the surgical report following shoulder instability surgery and (2) determine which elements should be included in the surgical report follo...

Purpose: To review athletes' reasons not to return to sport (RTS) after surgical treatment of anterior shoulder instability, comparing capsulolabral repair and bony reconstruction procedures. The hypothesis is that the most common reason for patients unable to RTS is not due to physical inability of the shoulder. Methods: A systematic review was...

Background: Even though many studies have been published regarding return to sport (RTS) rates following arthroscopic Bankart repair (ABR), evidence regarding prognostic factors for which patient do not RTS is limited. The aim of this study was to identify prognostic factors that are associated with failure to RTS and failure to RTPS following pri...

Introduction: Treatment of a patient with acromioclavicular joint (ACJ) injury remains challenging for orthopedic surgeons. To date, there is debate over the optimal management of ACJ injuries. This review provides an overview of assessment, treatment, and future perspectives for the treatment of and research into ACJ. Material and methods: A sc...

Background Distinguishing a complete from a partial distal biceps tendon rupture is essential, as a complete rupture may require repair on short notice to restore function, whereas partial ruptures can be treated nonsurgically in most cases. Reliability of physical examination is crucial to determine the right workup and treatment in patients with...

(400/400 words) Background On-track lesions with a short distance from the medial edge of the Hill-Sachs lesion to the medial edge of the glenoid track (nearly off-track) may predispose recurrence following arthroscopic Bankart repair (ABR) in the general population. The aim of this study was to determine if a shorter distance between the medial e...

Background Little evidence is available regarding patient perceptions of the treatment of shoulder instability. The aim of this study is to investigate patient perceptions regarding the operative and nonoperative treatment of anterior shoulder instability. Methods Patients who presented to the emergency department or outpatient clinic between 2016...

Background After latissimus dorsi transfer (LDT), an increase in scapulothoracic (ST) contribution in thoracohumeral (TH) elevation is observed when compared to the asymptomatic shoulder. It is not known which shoulder muscles contribute to this change in shoulder kinematics, and whether the timing of muscle recruitment has altered after LDT. The a...

Background: Pediatric supracondylar humerus fractures (pSCHFs) may be challenging injuries to treat because of the potential residual deformity. There is debate regarding the technical aspects of adequate closed reduction and crossed Kirschner wire (K-wire) fixation. Purpose: Do surgeons have an agreement on the aspects of the fixation of pSCHFs...

Background There is uncertainty with regard to the optimal revision procedure after failed labral repair for anterior shoulder instability. An overview of outcomes of these procedures with quantitative analysis is not available in literature. The aim of this review is 1) to compare recurrence rates after revision labral repair (RLR) and revision bo...

Purpose Marker-by-treatment analyses are promising new methods in internal medicine, but have not yet been implemented in orthopaedics. With this analysis, specific cut-off points may be obtained, that can potentially identify whether meniscal surgery or physical therapy is the superior intervention for an individual patient. This study aimed to in...

Background The aim of this study was to evaluate the thoracohumeral (TH) and glenohumeral (GH) motion with muscle activity after latissimus dorsi transfer (LDT) in a massive irreparable posterosuperior rotator cuff tear (MIRT) and pseudoparalytic shoulder compared to the asymptomatic contralateral shoulder (ACS). Methods Thirteen patients were rec...

Purpose: The extent of shoulder instability and the indication for surgery may be determined by the prevalence or size of associated lesions. However, a varying prevalence is reported and the actual values are therefore unclear. In addition, it is unclear whether these lesions are present after the first dislocation and whether or not these lesion...

Background As nonoperative treatment of Neer type II distal clavicle fractures is associated with nonunion rates up to 33%, operative treatment is frequently advocated. However, evidence is lacking regarding which operative treatment to perform and whether this is superior to nonoperative treatment in terms of functional outcome and complication ra...

A visible mass around the sternoclavicular (SC) joint may be explained by a wide variety of diagnoses, each with its own diagnostic pathway and treatment options. Here we report three cases: a 56-year-old male with an anterior luxation of the right SC joint, a 59-year-old male with osteomyelitis of the left SC joint and a 78-year-old male with a pa...

Background: There is an ongoing debate about whether to perform operative or nonoperative treatment following a first-time anterior dislocation or wait for recurrence before operating. The aim of this systematic review is to compare recurrence rates following operative treatment following first-time anterior dislocation (OTFD) with recurrence rate...

Purpose Determining the risk of recurrent instability following an arthroscopic Bankart repair can be challenging, as numerous risk factors have been identified that might predispose recurrent instability. However, an overview with quantitative analysis of all available risk factors is lacking. Therefore, the aim of this systematic review is to ide...

Purpose The purpose of this meta-analysis was to provide an up-to-date comparison of clinical outcomes of tenotomy and tenodesis in the surgical treatment of long head of the biceps brachii (LHB) tendinopathy. Methods A literature search was conducted in EMBASE, Pubmed/Medline and the Cochrane database from January 2000 to May 2020. All studies co...

Purpose To determine the definitions for recurrence used in the literature, assess the consensus in using these definitions, and determine the impact of these definitions on recurrence rates. Methods A literature search was performed in PubMed and EMBASE including studies from 2000 to 2020 reporting on recurrence rates after anterior arthroscopic...

Shoulder pain is a common sports-related complaint that may be caused by rotator cuff-related abnormalities. Accurate imaging plays a pivotal role in direct timing and type of treatment and subsequential outcome. Native MR imaging and ultrasonography are equally accurate and optimal and complementary tools to discriminate different forms of impinge...

Purpose The purpose of this study is to determine if long head biceps (LHB) tenotomy is not inferior to suprapectoral LHB tenodesis when performed in conjunction with arthroscopic repair of small to medium sized non-traumatic rotator cuff tears Methods This multicenter randomized non-inferiority trial recruited 100 participants older than 50 years...

Objectives: To compare outcomes between hemiarthroplasty (HA) and reversed shoulder arthroplasty (RSA) as a treatment for dislocated three-part and four-part proximal humerus fractures in the elderly population. Design: Prospective multi-center randomized controlled trial. Setting: Three level-1 trauma centers. Patients/participants: This st...

Background The Popeye sign is a frequently reported finding following LHB surgery and may be more often detected by doctors than by patients. This study investigates agreement between patients and doctors regarding the presence of a Popeye sign following LHB surgery. Method This Inter-observer study investigates agreement between patients and cons...

Background: The primary objective of this study was to determine the incidence of symptomatic venous thromboembolism (VTE), including pulmonary embolism (PE) and deep vein thrombosis (DVT), in the hip fracture population. Secondary objectives included determining timing of VTE diagnosis, VTE thromboprophylaxis given, and identifying any factors ass...

Background It is unknown whether the treatment effects of partial meniscectomy and physical therapy differ when focusing on activities most valued by patients with degenerative meniscal tears. Purpose To compare partial meniscectomy with physical therapy in patients with a degenerative meniscal tear, focusing on patients’ most important functional...

This classic discusses the original publication “Treatment of acromioclavicular injuries, especially complete acromioclavicular separation” by Weaver and Dunn, which collaborated to develop a technique for acromioclavicular joint reconstruction in 1972. Their surgical technique described resection of 2 cm of the distal clavicle and transfer of the...

Purpose: Age at primary dislocation, recurrence, and glenoid bone loss are associated with development of osteoarthritis (OA). However, an overview of OA following traumatic anterior shoulder instability is lacking and it is unclear to what degree type of surgery is associated with development of OA in comparison to non-operative treatment. The aim...

Pathology in the bicipital groove can be a source of anterior shoulder pain. Many studies have compared treatment techniques for the long head biceps tendon (LHBT) without showing any clinically significant differences. As the LHBT is closely related to the bicipital groove, anatomical aspects of this groove could also be implicated in surgical out...

ingezonden reactie L e s s e n u i t d e c o r o n a c r i s i s  Plaats een reactie Door de coronacrisis moesten we naar een nieuwe werkwijze. Bij het bespreken van onze ervaringen hiermee tijdens een vakgroepbrede sessie kwamen twee punten naar voren. Als eerste werd de samenwerking met collega's van de (trauma)chirurgie aangehaald. Door de virt...

Background Suprapectoral long head biceps (LHB) tenodesis and subpectoral LHB tenodesis are both commonly performed surgical procedures. Due to the more proximal position of the suprapectoral tenodesis site this technique may be accompanied with more postoperative pain in the bicipital groove and cramping pain in the biceps muscle. We hypothesized...

The purpose of this survey in Belgium and the Netherlands was to assess treatment variation in glenohumeral osteoarthritis between experienced and less experienced orthopedic surgeons, and to investigate perioperative treatment after shoulder arthroplasty in a large group of orthopedic surgeons. Orthopedic surgeons specialized in shoulder surgery w...

Background Suprapectoral long head biceps (LHB) tenodesis and subpectoral LHB tenodesis are both commonly performed surgical procedures. Due to the more proximal position of the suprapectoral tenodesis site this technique may be accompanied with more postoperative pain in the bicipital groove and cramping pain in the biceps muscle. We hypothesized...

Purpose: To develop a Dutch-Flemish translation of the PROMIS® upper extremity (PROMIS-UE) item bank v2.0, and to investigate its cross-cultural and construct validity as well as its floor and ceiling effects in patients with musculoskeletal UE disorders. Methods: State of the art translation methodology was used to develop the Dutch-Flemish PRO...

Introduction It is common practice to obtain follow-up radiographs of non-operatively treated isolated greater tuberosity (GT) fractures 1 to 2 weeks after trauma. However, the majority of non-operatively treated GT fractures remain stable and do not require reconsideration of the initial treatment decision. Radiological follow-up therefore might b...

Purpose The aim of this study was to determine the accuracy of glenoid bone loss measuring methods and assess the influence of the imaging modality on the accuracy of the measurement methods. Methods A literature search was performed in the PubMed/Medline, EMBASE and Cochrane databases from 1994 to the 11th of June 2019. The guideline and algorith...

Abstract Background The Dutch-Flemish PROMIS® Upper Extremity (DF-PROMIS-UE) V2.0 item bank was recently developed using Item Response Theory (IRT). Unknown for this bank are: (1) if it is legitimate to calculate IRT-based scores for short forms and Computerized Adaptive Tests (CATs), which requires that the items meet the assumptions of and fit th...

Introduction It is common practice to obtain follow-up radiographs of non-operatively treated isolated greater tuberosity (GT) fractures 1 to 2 weeks after trauma. However, the majority of non-operatively treated GT fractures remain stable and do not require reconsideration of the initial treatment decision. Radiological follow-up therefore might b...

Purpose: The hypothesis of this study is that Dynamic Contact Area Ratio of the humerus and glenoid, measured with CT scans, is significantly reduced in patients with anterior shoulder instability compared to the Dynamic Contact Area Ratio in a control group of people without shoulder instability. Methods: Preoperative CT scans of patients who u...

Purpose This systematic review assesses evidence for improvements in outcome for all reported types of treatment modalities [physical therapy, tenotomy or tenodesis of the long head of the biceps, debridement, partial repair, subacromial spacer, deltoid flap, muscle transfer, rotator cuff advancement, graft interposition, superior capsular reconstr...

Background : Shoulder arthroplasty (SA) complications require standardization of definitions and are not limited to events leading to revision operations. We aimed to define an international consensus core set of clinically-relevant unfavorable events of SA to be documented in clinical routine practice and studies. Methods: A Delphi exercise was im...

Purpose The aim of the present study was to determine the long-term outcome after the arthroscopic Bankart procedure, in terms of recurrent instability, shoulder function, glenohumeral arthropathy and patient satisfaction. Methods Patients who underwent the arthroscopic Bankart procedure between January 1999 and the end of December 2005 were invit...

Purpose: To compare the clinical and biomechanical results of an arthroscopic Bankart repair alone with an arthroscopic Bankart repair combined with remplissage. Methods: A literature search was performed on May 1, 2018, in PubMed and Embase for studies comparing an isolated arthroscopic Bankart repair and an arthroscopic Bankart repair with rem...

Background Responsiveness and the minimal important change (MIC) are important measurement properties to evaluate treatment effects and to interpret clinical trial results. The International Knee Documentation Committee (IKDC) Subjective Knee Form is a reliable and valid instrument for measuring patient-reported knee-specific symptoms, functioning,...

Introduction The wide use of hip and knee arthroplasty has led to implementation of volume standards for hospitals and surgeons. For shoulder arthroplasty, the effect of volume on outcome has been researched, but no volume standard exists. This review assessed literature reporting on shoulder arthroplasty volumes and its relation to patient-reporte...

Background: The aim of this study was to assess differences in fracture morphology and displacement between isolated greater tuberosity (GT) fractures (i.e. fractures of the greater tuberosity without other fractures of the proximal humerus) with and without shoulder dislocation utilizing quantitative 3-dimensional CT imaging. Methods: Thirty-fo...

The choice of operative treatment after shoulder instability depends highly on the risk of recurrent instability. Although Balg et al. has developed the instability severity index score (ISIS) to aid in the surgical decision making, including the factors contributing to a high risk of recurrent dislocation such as younger age (≤ 20 years old), part...

Background: Bony lesions after shoulder dislocation reduce the joint contact area and increase the risk of recurrent instability. It is unknown whether the innate relative sizes of the humeral head and glenoid may predispose patients to shoulder instability. This study evaluated whether anterior shoulder instability is associated with a larger inn...

AIM To investigate the additional value of physiotherapy after a corticosteroid injection in stage one or two idiopathic frozen shoulders (FSs). METHODS A two center, randomized controlled trial was done. Patients with a painful early stage idiopathic FS were eligible for inclusion. After written consent, patients were randomly allocated into two...

Background: Shoulder instability is associated with decreased functioning. The associated costs could be substantial and interesting to clinicians, researchers, and policy makers. This prospective observational study aims to (1) estimate productivity losses and healthcare expenses following the nonoperative treatment of shoulder instability and (2...

Background: This retrospective cohort study evaluated functional outcome and structural integrity after arthroscopic- or mini-open repair of small- to medium-size rotator cuff tears assessed at long-term follow-up. Methods: All patients operated between 2001 and 2004 were invited to participate. Functional outcome was measured by Constant-Murley...

ESSKA Instructional Course Lecture Book.

Background: The present study aimed to evaluate the methodological quality and determine the quality of reporting of randomized controlled trials (RCTs) that assess surgical treatment for shoulder instability. Methods: A Cochrane, Pubmed, EMBASE and Trip database search was performed, including the relevant literature, regarding RCTs that report...

Shoulder dislocation and its treatment are probably as old as time. Surgical treatment has gained acceptance recently, especially in recurrent cases. Within roughly the last 100 years numerous treatment strategies have been developed and questions elucidated regarding the entity of shoulder instability. Shoulder instability holds many eponymous ter...

Purpose: The purpose is to create more awareness as well as emphasize the risk of permanent nerve injury as a complication of elbow arthroscopy. Methods: Patients who underwent elbow arthroscopy complicated by permanent nerve injury were retrospectively collected. Patients were collected using two strategies: (1) by word-of-mouth throughout the...

Shoulder dislocation and its treatment are probably as old as time. Surgical treatment has gained acceptance recently, especially in recurrent cases. Within roughly the last 100 years, numerous treatment strategies have been developed and questions elucidated regarding the entity of shoulder instability. Shoulder instability holds many eponymous te...

Background: Most total elbow arthroplasty (TEA) designs aim to replicate anatomy and provide stability in the treatment of the degenerative elbow joint. Given the promising results that have been reported following the use of TEA for the treatment of complex fractures, the indications for this procedure are growing. The objective of the present st...

Background: Nontraumatic full-thickness rotator cuff tears are commonly initially treated conservatively. If conservative treatment fails, rotator cuff repair is a viable subsequent option. The objective of the present meta-analysis is to evaluate the shoulder-specific outcomes one year after arthroscopic or mini-open rotator cuff repair of nontra...

Study Design Prospective cohort study. Background Patient-reported outcome measurements (PROMs) are widely used to evaluate functional limitations. Considering PROMs for shoulder instability, information is lacking with regard to what constitutes a relevant change from baseline scores. Objectives To evaluate the responsiveness of the Western Onta...

PurposeTo identify the optimal technique for closed reduction for shoulder instability, based on success rates, reduction time, complication risks, and pain level. MethodsA PubMed and EMBASE query was performed, screening all relevant literature of closed reduction techniques mentioning the success rate written in English, Dutch, German, and Arabic...

Posterior shoulder dislocations are accompanied by high forces and can result in an anteromedial humeral head impression fracture called a reverse Hill-Sachs lesion. This reverse Hill-Sachs lesion can result in serious complications including posttraumatic osteoarthritis, posterior dislocations, osteonecrosis, persistent joint stiffness, and loss o...

Importance There are many different published rehabilitation protocols with various guidelines for type and duration of immobilisation, exercises and return to preoperative activities. Objective The aim of this study is to evaluate the evidence regarding rehabilitation following anteroinferior capsulolabral repair in patients with anterior shoulde...

Objectives Our objective is to provide a systematic and technical guide on how to reduce a shoulder dislocation, based on techniques that have been described in literature for patients with anterior and posterior shoulder instability. Materials and methods A PubMed and EMBASE query was performed, screening all relevant literature on the closed red...

Background: Compared with total shoulder arthroplasty (TSA), total shoulder surface replacement (TSSR) may offer the advantage of preservation of bone stock and shorter surgical time, possibly at the expense of glenoid component positioning and increasing lateral glenohumeral offset. We hypothesized that in patients treated for osteoarthritis with...

Background: The purpose of this review was to determine the redislocation risk for collision athletes after an arthroscopic Bankart repair and to compare the redislocation rate between collision athletes and noncollision athletes after an arthroscopic Bankart repair. Methods: A PubMed and Embase query was performed, screening all relevant litera...

Background Optimal treatment of the diseased long head of the biceps (LHB) tendon during rotator cuff repair remains a topic of debate: tenotomy or tenodesis. A recent meta analysis revealed no difference in strength or functional outcome between treatments. The included studies varied in methodological quality, and only two were randomized control...

Purpose Recurrent anterior shoulder instability after surgical treatment can be caused by bony defects. Several diagnostic tools have been designed to measure the extent of these bony lesions. Currently, there is no consensus which measurement tool to use and decide which type of surgery is most appropriate. We therefore performed an evaluation of...

BACKGROUND: For greater tuberosity fractures, 5-mm displacement is a commonly used threshold for recommending surgery; however, it is unclear if displacement can be assessed with this degree of precision and reliability using plain radiographs. It also is unclear if CT images provide additional information that might change decision making. QUESTIO...

Background For greater tuberosity fractures, 5-mm displacement is a commonly used threshold for recommending surgery; however, it is unclear if displacement can be assessed with this degree of precision and reliability using plain radiographs. It also is unclear if CT images provide additional information that might change decision making. Question...

Background: Up to 44% of ankle fractures have involvement of the posterior tibial margin. Fracture size and morphology are important factors to guide treatment of these fragments, but reliability of plain radiography in estimating size is low. The aim of the current study was to evaluate the accuracy of 2-dimensional computed tomography (2DCT) in...

Background: The Oxford Shoulder Instability Score (OSIS) is a short, self-reported outcome measurement for patients with shoulder instability. In this study, the OSIS was validated in Dutch by testing the internal consistency, reliability, measurement error, validity and the floor and ceiling effects, and its smallest detectable change (SDC) was c...

The Bristow–Latarjet procedure is a well-known surgical technique designed to treat shoulder instability. In this procedure, the coracoid process is transferred to the glenoid rim, to serve as augmentation of an associated bony defect. Because long-term results following a soft tissue procedure (Bankart repair) reveal that up to 21 and 33 % of the...

Purpose: The objective of this meta-analysis is to compare clinical outcomes of tenotomy and tenodesis in the surgical treatment of long head of the biceps brachii (LHB). Methods: A literature search was conducted in Embase and PubMed from 2000 to April 2014. All studies comparing the clinical outcomes between LHB tenotomy and tenodesis were inc...

There is substantial unexplained geographical and surgeon-to-surgeon variation in rates of surgery. One would expect surgeons to treat patients and themselves similarly based on best evidence and accounting for patient preferences. (1) Are surgeons more likely to recommend surgery when choosing for a patient than for themselves? (2) Are surgeons le...

Background There is substantial unexplained geographical and surgeon-to-surgeon variation in rates of surgery. One would expect surgeons to treat patients and themselves similarly based on best evidence and accounting for patient preferences. Questions/purposes (1) Are surgeons more likely to recommend surgery when choosing for a patient than for t...

Background: Randomized controlled trials (RCTs) are high in the hierarchy of scientific evidence, but possible sources of bias should be identified or even excluded. This systematic review assessed the methodologic quality and the quality of reporting of the RCTs on the treatment of elbow pathology. Methods: A systematic review of RCTs was perfo...

The purpose of this review article is to describe the currently used techniques for rotator cuff repair and after treatment. The literature was searched for the different surgical techniques and additional treatment including: [1] full arthroscopic and arthroscopic assisted rotator cuff repair, [2] acromioplasty as an additional treatment to rotato...

The clinical condition "winged scapula" (scapula alata) is frequently not recognized as such. The accompanying symptoms are often attributed to more frequently occurring shoulder disorders, which can lead to unnecessary surgical procedures. A 41-year-old man was shot during a robbery 3 years ago, resulting in a complete paraplegia from the fourth t...