Jaap J. Tolk

ORCID: 0000-0003-1685-7490
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About
Contact & Profiles
Research Areas
  • Total Knee Arthroplasty Outcomes
  • Hip disorders and treatments
  • Orthopaedic implants and arthroplasty
  • Osteoarthritis Treatment and Mechanisms
  • Knee injuries and reconstruction techniques
  • Hip and Femur Fractures
  • Musculoskeletal synovial abnormalities and treatments
  • Orthopedic Infections and Treatments
  • Musculoskeletal Disorders and Rehabilitation
  • Orthopedic Surgery and Rehabilitation
  • Cerebral Palsy and Movement Disorders
  • Rheumatoid Arthritis Research and Therapies
  • Bone fractures and treatments
  • Neurogenetic and Muscular Disorders Research
  • Vestibular and auditory disorders
  • T-cell and Retrovirus Studies
  • German Literature and Culture Studies
  • Assistive Technology in Communication and Mobility
  • Scoliosis diagnosis and treatment
  • Healthcare Policy and Management
  • Ear Surgery and Otitis Media
  • Obstructive Sleep Apnea Research
  • Medical and Biological Sciences
  • Human Health and Disease
  • Dermatological and Skeletal Disorders

Erasmus MC - Sophia Children’s Hospital
2021-2025

Erasmus MC
2024

Radboud University Nijmegen
1964-2023

Catharina Ziekenhuis
2023

Association of Dutch Burn Centres
2023

Maastricht University
2023

Royal National Orthopaedic Hospital
2021-2022

University College London
2021-2022

Máxima Medisch Centrum
2012-2021

Royal National Orthopaedic Hospital NHS Trust
2021

Worldwide controversy exists on the optimal treatment of stable dysplastic hips. The most common options are abduction brace and active surveillance. primary aim this study was to assess effect surveillance in hip dysplasia, by investigating percentage Graf IIb hips that recover spontaneously without treatment. second identify prognostic factors for spontaneous recovery A single-centre, prospective cohort conducted at Máxima Medical Center between 1 March 2019 2023. Infants aged three 4.5...

10.1302/0301-620x.107b2.bjj-2024-0331.r1 article EN cc-by-nc-nd The Bone & Joint Journal 2025-02-01

Aims Meeting preoperative expectations is known to be of major influence on postoperative satisfaction after total knee arthroplasty (TKA). Improved management expectation, resulting in more realistic can potentially lead higher satisfaction. The objective this study was assess the effect an additional education module, addressing for long-term functional recovery, and expectation fulfilment. Methods In total, 204 primary TKA patients with osteoarthritis were enrolled randomized controlled...

10.1302/0301-620x.103b4.bjj-2020-0629.r3 article EN The Bone & Joint Journal 2021-04-01

(1954). On the Slow Phase of Caloric Nystagmus. Acta Oto-Laryngologica: Vol. 44, No. 5-6, pp. 589-593.

10.3109/00016485409127671 article EN Acta Oto-Laryngologica 1954-01-01

The diagnosis and treatment of developmental dysplasia the hip (DDH) can be stressful for parents, often worsened by inadequate information. primary aim this study is to assess whether information preferences parents children with DDH, identified in a prior single-center study, are generalizable across Netherlands. A secondary compare these perspectives pediatric orthopedic surgeons. An online survey was conducted between September November 2023 among DDH surgeons Based on qualitative...

10.1097/bpb.0000000000001251 article EN cc-by-nc-nd Journal of Pediatric Orthopaedics B 2025-03-10

Background/Objectives: In the Netherlands, selective ultrasound (US) screening for developmental dysplasia of hip (DDH) typically occurs at 3 months age. During COVID-19 pandemic, US was temporarily halted in Dutch hospitals, with consequent delay DDH and possibly inferior outcomes patients. Methods: We analyzed 1849 infants screened during pandemic (March–August 2020) 1663 before 2019). compared mean age timing (standard vs. delayed (delayed defined as ≥15 weeks)). For secondary outcomes,...

10.3390/children12050538 article EN cc-by Children 2025-04-23

Background and purpose — Improvement of physical function is one the main treatment goals in severe hip osteoarthritis (OA) patients. The Osteoarthritis Research Society International (OARSI) has identified a core set performance-based tests to assess construct function: 30-s chair stand test (30-s CST), 4x10-meter fastpaced walk (40 m FPWT), stair-climb test. Despitethis recommendation, available evidence on measurement properties limited. We evaluated reliability, validity, responsiveness...

10.1080/17453674.2018.1539567 article EN cc-by Acta Orthopaedica 2018-11-19

Abstract Unfulfilled preoperative expectations have a strong influence on the outcome after total knee arthroplasty (TKA). More insight into determinants of level is useful in identifying patients at risk for having treatment result that are too high or low. This information can be used optimizing expectation management. The aim current study was to analyze what extent TKA affected by psychological factors, demographic pain, physical function, and general health status. We performed...

10.1055/s-0039-1692632 article EN The Journal of Knee Surgery 2019-07-04

Dual tension-band plates are used for temporary epiphysiodesis and longitudinal guided growth. The study aim was to assess rate of correction, identify development femoral tibial intra-articular deformity during correction document resumption growth after plate removal.A retrospective 34 consecutive patients treated with dual between 2012 2020 performed. Twenty-four had surgery at the distal femur, six proximal tibia four both. Twenty-five female were a mean age 11.6 (±1.4) years nine male...

10.5005/jp-journals-10080-1547 article EN Strategies in Trauma and Limb Reconstruction 2022-05-24

Abstract The rate of satisfaction after total knee arthroplasty (TKA) is consistently reported around 80%, leaving one in five patients unsatisfied to some extent. Fulfillment expectations as the strongest predictor treatment satisfaction. In this study, we aimed evaluate what Dutch orthopedic surgeons assume are realistic for recovery 1 year TKA. We invited members Knee Society (DKS) fill out a web-based questionnaire. For expectation measurement, validated version Hospital Special Surgery...

10.1055/s-0036-1593868 article EN The Journal of Knee Surgery 2016-11-23

Objective The aim of this qualitative study was to explore the experiences Dutch parents children with developmental dysplasia hip (DDH), treated a Pavlik harness, during diagnostic and treatment process in first year life. Design A by means semistructured interviews conducted between September December 2020. Qualitative content analysis applied code, categorise thematise data. Setting large, tertiary referral centre for paediatric orthopaedics Netherlands. Participants purposive sample aged...

10.1136/bmjopen-2022-062585 article EN cc-by-nc BMJ Open 2022-09-01

One out of five patients is unsatisfied to some extent after total knee arthroplasty (TKA). Unmet expectations are the main driver post-operative dissatisfaction. Improved pre-operative education on realistic for long-term outcome TKA potentially leads higher satisfaction. The effect expectation modification satisfaction in has not yet been studied. primary objective presented study examine whether an educational module recovery will improve patient compared usual education. EKSPECT a...

10.1186/s13063-018-2821-2 article EN cc-by Trials 2018-08-14

In 58 cats measurements were carried out to obtain a more profound insight into the importance of external auditory canal, middle and inner ear constructions in connection with bone conduction. It was found that inertia ossicular chain as well fluid are by far most important components causing conduction mobile system must be considered consist at least two loosely coupled units vibration.

10.3109/00016486509124544 article EN Acta Oto-Laryngologica 1965-01-01

Abstract Background Early diagnosis of knee osteoarthritis (OA) is important in managing this disease, but such an early diagnostic tool still lacking clinical practice. The purpose study was to develop models for stage OA based on the first 2-year course after patient’s initial presentation primary care and identify whether these factors had additive discriminative value over baseline factors. Methods We extracted eligible patients’ radiographic data from CHECK cohort formed according...

10.1186/s13075-021-02598-5 article EN cc-by Arthritis Research & Therapy 2021-08-19

In total knee arthroplasty (TKA), reconstruction of a neutral mechanical axis is great importance. The main goal this study was to compare the accuracy alignment after conventional versus computer-assisted TKA. Additionally, effect surgery (CAS) on functional outcome analyzed. Out consecutive series, 50 TKA were compared with Except for use CAS, all perioperative and postoperative interventions comparable. Radiological analyzed standardized standing long-leg radiographs. Functional assessed...

10.1055/s-0031-1299670 article EN The Journal of Knee Surgery 2012-05-03

The aim of this study was to identify the information topics that should be addressed according parents children with developmental dysplasia hip (DDH) in diagnostic and treatment phase during first year life. Second, we explored parental recommendations further optimize provision DDH care.A qualitative semi-structured interviews conducted between September December 2020. A purposive sample aged younger than one year, who were treated for a Pavlik harness, interviewed until data saturation...

10.1302/2633-1462.47.bjo-2023-0072.r1 article EN cc-by-nc-nd Bone & Joint Open 2023-07-05

In up to 45-90% of non-ambulatory patients with cerebral palsy (CP), progressive hip migration can be observed. The goal this study was determine whether the implementation a national surveillance guideline affected outcome reconstructions.

10.3390/children11030272 article EN cc-by Children 2024-02-21

In unilateral Developmental Dysplasia of the Hip (DDH), avascular necrosis (AVN), femoral or pelvic osteotomy, and residual dysplasia causing subluxation proximal femur may influence Leg Length Discrepancy (LLD). This can lead to gait compensation, obliquity, spinal curvature. The aim this study is determine prevalence LLD, establish which limb segment contributes discrepancy, describe how AVN influences ascertain variables that need for LLD corrective procedures. Methodology: assessed...

10.3390/children9121945 article EN cc-by Children 2022-12-12

Background: Worldwide a wide variation exists in duration of Pavlik harness treatment for infants up to 6 months with stable developmental dysplasia the hip (DDH). The purpose this study was evaluate whether shortening time first routine follow-up ultrasound after initiation would reduce and influenced radiologic outcome at 1 year age. Furthermore, predictors higher acetabular index (AI) age were investigated. Methods: A retrospective conducted DDH (Graf IIb IIc) diagnosed treated between...

10.1097/bpo.0000000000001766 article EN cc-by-nc-nd Journal of Pediatric Orthopaedics 2021-02-12

Perthes' disease (PD) often results in femoral head deformity and leg length discrepancy (LLD). Our objective was to analyze morphology PD patients at skeletal maturity assess where the LLD originates, evaluate effect of contralateral epiphysiodesis for equalization on proximal subtrochanteric lengths.All treated our institution between January 2013 June 2020 were reviewed retrospectively. Patients with unilateral PD, ≥ 5 mm, long-leg standing radiographs included. Total length, tibial...

10.1302/0301-620x.103b11.bjj-2020-2583.r2 article EN The Bone & Joint Journal 2021-11-01

Background: Proximal femoral and/or pelvic osteotomies (PFPOs) can be indicated for a multitude of hip pathologies in (often asymptomatic) children, to prevent future problems. These procedures result significant blood loss. Tranexamic acid (TXA) is an antifibrinolytic agent routinely administered adult trauma and joint reconstruction surgery reduce TXA also registered use children reported safe beneficial pediatric trauma, cardiac, spinal surgery. However, orthopedics, particularly PFPOs,...

10.1177/18632521231199518 article EN cc-by-nc Journal of Children s Orthopaedics 2023-10-01
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