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    • J A N Jan Verhaar
    • J A N Jan Verhaar

      J A N Jan Verhaar

      Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, Zuid-Holland, The Netherlands | Department of Orthopaedics and Sports Medicine, ...

       

       

      KOL Resume for J A N Jan Verhaar

      Year
      2022

      Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, Zuid-Holland, The Netherlands

      2021

      Department of Orthopaedic Surgery, Erasmus MC, University Medical Center, The Netherlands

      2020

      Department of Orthopaedics and Sports Medicine, Erasmus University Rotterdam, Rotterdam, Zuid-Holland, The Netherlands

      2019

      Department of Orthopaedics, Erasmus University Medical Center, Rotterdam;

      Erasmus Med. Ctr., Rotterdam, Netherlands

      2018

      From the Departments of Radiology (K.v.O., J.L.B., M.R.), Orthopaedics (R.G.H.H.N.), and Medical Decision Making (W.B.v.d.H.), Leiden University Medical Center, PO Box 9600, 2300 RC, Postal Zone C2-S, Leiden, the Netherlands; Departments of General Practice (N.M.S., P.J.E.B., B.W.K., P.A.J.L.) and Orthopaedics (S.M.A.B., J.A.N.V.), Erasmus Medical Center, University Medical Center Rotterdam, Rotterdam, the Netherlands; and Department of Radiology, Northwest Clinics, Alkmaar, the Netherlands (P.R.A.).

      Department of Orthopaedics, Erasmus Medical Centre, Rotterdam, The Netherlands.

      Erasmus MC, University Medical Center Rotterdam

      2017

      Department of Orthopaedics, Erasmus University Medical Centre, Rotterdam, The Netherlands

      2016

      Department of Orthopedics, Erasmus MC, University Medical Center Rotterdam, The Netherlands

      2015

      Department of Orthopaedics, Erasmus Medical Centre, Rotterdam, the Netherlands

      2014

      Erasmus Medical Center, Department of Orthopaedic Surgery, Westzeedijk 361, Postbus 2040, 3000 CA Rotterdam, The Netherlands

      2013

      Department of Orthopaedic Surgery, Erasmus Medical Center, Rotterdam

       

       

      J A N Jan Verhaar: Influence Statistics

      Sample of concepts for which J A N Jan Verhaar is among the top experts in the world.
      Concept World rank
      visual score morphology #1
      3 weeks children #1
      day 14 cell #1
      expanded cells tgfbeta2 #1
      expression cartilagerelated genes #1
      clinically relevant limitation #1
      global stiffness architecture #1
      soccer players prominence #1
      mrna level ∼50 #1
      alendronate treatment rats #1
      process mineralisation #1
      insulin macrophage infiltration #1
      alginate hbmscfibrin #1
      osteoblasts matrix metalloproteinases #1
      cta sgag content #1
      interference stiffer fixation #1
      saq method #1
      biomechanical alteration #1
      osteochondral environment #1
      expression anabolic markers #1
      constructs 10 weeks #1
      neovascularization doppler flow #1
      mmp13 chondrogenic environment #1
      mscs inflammatory factors #1
      symptomatic ± #1
      dmm ihc #1
      synovial production glcn #1
      pwb tha #1
      bone loss dynamics #1
      95 moment arm #1
      opposite cortical #1
      slight pain operation #1
      13 soccer players #1
      ssa cas #1
      role arthrodesis #1
      6 weeks insole #1
      camtype deformities age #1
      effects osteoclastic activity #1
      ioxaglate vivo assessment #1
      tka strong evidence #1
      supination bone #1
      bec aec #1
      ipfp knee joint #1
      surface area quantification #1
      chondrogenic constructs implantation #1
      knee update #1
      80 controls #1
      groups median limitation #1
      mifnγtnfα effects #1
      analysis rotational malunion #1

       

      Prominent publications by J A N Jan Verhaar

      KOL-Index: 17649

      BACKGROUND: A subset of patients with total hip arthroplasty (THA) or total knee arthroplasty (TKA) has suboptimal postoperative results in terms of Patient Reported Outcomes (PROs), and psychological factors could contribute to these suboptimal results.

      OBJECTIVES: To examine the prevalence of anxiety and depressive symptoms in patients undergoing primary THA or TKA preoperatively and postoperatively, and the relationship between preoperative anxiety and depressive symptoms on PROs of ...

      Known for Depressive Symptoms | Total Hip | Patients Anxiety | Tha Tka | 12 Months
      KOL-Index: 17514

      BACKGROUND: The Knee Injury and Osteoarthritis Outcome Score (KOOS) was constructed in Sweden. This questionnaire has proved to be valid for several orthopedic interventions of the knee. It has been formally translated and validated in several languages, but not yet in Dutch. The purpose of the present study was to evaluate the clinimetric properties of the Dutch version of the KOOS questionnaire in knee patients with various stages of osteoarthritis (OA).

      METHODS: The Swedish version of ...

      Known for Dutch Version | Knee Injury | Validation Study | Tka Patients | Koos Questionnaire
      KOL-Index: 16509

      BACKGROUND: Patients with osteoarthritis of the knee can be treated with a brace or orthosis (shoe insole). The main purpose of these aids is to reduce pain, improve physical function and, possibly, to slow disease progression.

      OBJECTIVES: To assess the effectiveness of a brace or orthosis in the treatment of osteoarthritis of the knee.

      SEARCH STRATEGY: We searched Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE and EMBASE (Current contents, Health STAR) up to October ...

      Known for Osteoarthritis Knee | Laterally Wedged Insole | Methodological Quality | Pain Compared | Lateral Wedge
      KOL-Index: 15388

      OBJECTIVE: To study the association between baseline femoral neck and lumbar spine bone mineral density (BMD), prevalent fractures and incident and progressive radiographic osteoarthritis (ROA) of the knee in men and women.

      METHODS: A sample of 1403 subjects (829 women and 574 men) was drawn from the Rotterdam Study, a prospective population-based cohort study of the elderly. Incidence and progression of ROA in quartiles of femoral neck (FN) and lumbar spine (LS) BMD were determined ...

      Known for Rotterdam Study | Vertebral Fracture | Bmd Progression | Knee Roa | Bone Mineral Density
      KOL-Index: 15379

      STUDY DESIGN: Prospective cohort study.

      OBJECTIVE: To evaluate whether the DASH is not only a valid and responsive instrument to measure patients with shoulder, arm, and hand complaints, but also to evaluate patients with neck complaints.

      SUMMARY OF BACKGROUND DATA: The DASH has shown to be a valid and responsive questionnaire to evaluate disability in patients with shoulder, arm, and hand complaints. However, patients with shoulder, arm, or hand complaints frequently report neck ...

      Known for Hand Questionnaire | Dash Patients | Arm Shoulder | Ceiling Effects | Neck Disability
      KOL-Index: 15040

      BACKGROUND: Anterior cruciate ligament (ACL) reconstruction is one of the most frequently performed orthopaedic procedures. The most common technical cause of reconstruction failure is graft malpositioning. Computer assisted surgery aims to aid graft placement.

      OBJECTIVES: To assess the effects of computer assisted reconstruction surgery versus conventional operating techniques for ACL or posterior cruciate ligament (PCL) deficient knees in adults.

      SEARCH STRATEGY: We searched the ...

      Known for Assisted Surgery | Knee Ligament | Acl Reconstruction | Anterior Cruciate | Pooled Data
      KOL-Index: 15003

      BACKGROUND: Individuals with osteoarthritis (OA) of the knee can be treated with a knee brace or a foot/ankle orthosis. The main purpose of these aids is to reduce pain, improve physical function and, possibly, slow disease progression. This is the second update of the original review published in Issue 1, 2005, and first updated in 2007.

      OBJECTIVES: To assess the benefits and harms of braces and foot/ankle orthoses in the treatment of patients with OA of the knee.

      SEARCH METHODS: We ...

      Known for Pain Function | Life Treatment | Knee Brace | Laterally Wedged Insole | Risk Bias
      KOL-Index: 14832

      BACKGROUND: Anterior cruciate ligament (ACL) rupture is a well-known risk factor for development of knee osteoarthritis. Early identification of those patients at risk and early identification of the process of ACL rupture leading to osteoarthritis may aid in preventing the onset or progression of osteoarthritis.

      PURPOSE: To identify early degenerative changes as assessed on magnetic resonance imaging (MRI) after 2-year follow-up in patients with a recent ACL rupture and to evaluate ...

      Known for Cruciate Ligament | Acl Rupture | 2 Years | Early Degenerative | Joint Effusion
      KOL-Index: 14405

      OBJECTIVE: To assess the effectiveness of supervised exercise therapy compared with usual care with respect to recovery, pain, and function in patients with patellofemoral pain syndrome.

      DESIGN: Open label randomised controlled trial.

      SETTING: General practice and sport physician practice.

      PARTICIPANTS: Patients with a new episode of patellofemoral pain syndrome recruited by their general practitioner or sport physician.

      INTERVENTIONS: The intervention group received a standardised ...

      Known for Controlled Trial | Exercise Therapy | Pain Function | Intervention Control | 3 Months
      KOL-Index: 14228

      BACKGROUND: Patients with unicompartmental osteoarthritis of the knee can be treated with an osteotomy. The goal of an osteotomy is to unload the diseased compartment of the knee. This is the second update of the original review published in The Cochrane Library, Issue 1, 2005.

      OBJECTIVES: To assess the benefits and harms of an osteotomy for treating patients with knee osteoarthritis, including the following main outcomes scores: treatment failure, pain and function scores, ...

      Known for Knee Osteoarthritis | Osteotomy Patients | Treatment Failure | Pain Compared | Cw Hto
      KOL-Index: 14175

      CONTEXT: Tendon disorders comprise 30% to 50% of all activity-related injuries; chronic degenerative tendon disorders (tendinopathy) occur frequently and are difficult to treat. Tendon regeneration might be improved by injecting platelet-rich plasma (PRP), an increasingly used treatment for releasing growth factors into the degenerative tendon.

      OBJECTIVE: To examine whether a PRP injection would improve outcome in chronic midportion Achilles tendinopathy.

      DESIGN, SETTING, AND PATIENTS: A ...

      Known for Chronic Achilles | Plasma Injection | 24 Weeks | Prp Placebo | Controlled Trial
      KOL-Index: 13777

      Limitation in daily physical activity is one of the reasons for total hip arthroplasty (THA) or total knee arthroplasty (TKA). However, studies of the effects of THA or TKA generally do not determine actual daily activity as part of physical functioning. We determined the effect of THA or TKA on patients' actual physical activity and body function (pain, stiffness), capacity to perform tasks, and self-reported physical functioning. We also assessed whether there are differences in the ...

      Known for Total Hip | Tha Tka | Physical Activity | 6 Months | Surgery Patients
      KOL-Index: 13472

      A prospective, randomised, controlled trial compared two different techniques of high tibial osteotomy with a lateral closing wedge or a medial opening wedge, stabilised by a Puddu plate. The clinical outcome and radiological results were examined at one year. The primary outcome measure was the achievement of an overcorrection of valgus of 4 degrees . Secondary outcome measures were the severity of pain (visual analogue scale), knee function (Hospital for Special Surgery score), and ...

      Known for Closing Wedge | Puddu Plate | Medial Compartment Arthritis | Controlled Study | Difference Pain
      KOL-Index: 13080

      BACKGROUND: Osteoarthritis is the most frequent chronic joint disease causing pain and disability. Besides biomechanical mechanisms, the pathogenesis of osteoarthritis may involve inflammation, vascular alterations and dysregulation of lipid metabolism. As statins are able to modulate many of these processes, this study examines whether statin use is associated with a decreased incidence and/or progression of osteoarthritis.

      METHODS: Participants in a prospective population-based cohort ...

      Known for Progression Osteoarthritis | Rotterdam Study | Reduced Incidence | Knee Hip | Lipid Metabolism
      KOL-Index: 12847

      PURPOSE: To evaluate which questionnaire, the Knee Injury and Osteoarthritis Outcome Score (KOOS) or the International Knee Documentation Committee Subjective Knee Form (IKDC subjective), is most useful to evaluate patients with recent anterior cruciate ligament (ACL) ruptures or those within 1 year of an ACL reconstruction.

      METHODS: Patients with recent (0-6 months) ACL ruptures or those with indications for ACL reconstruction were included. All patients completed the questionnaires ...

      Known for Knee Injury | Anterior Cruciate | Acl Reconstruction | Osteoarthritis Outcome Score | Ligament Rupture

      Key People For Exercise Therapy

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      #1
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      observational studies consort statement randomised trials
      #2
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      #3
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      #6
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      J A N Jan Verhaar:Expert Impact

      Concepts for whichJ A N Jan Verhaarhas direct influence:Exercise therapy,  General practice,  Achilles tendinopathy,  Hip osteoarthritis,  Hip pain.

      J A N Jan Verhaar:KOL impact

      Concepts related to the work of other authors for whichfor which J A N Jan Verhaar has influence:Knee osteoarthritis,  Shoulder pain,  Articular cartilage,  Stem cells,  Tibial osteotomy,  Achilles tendinopathy,  Lateral epicondylitis.


       

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      Department of Orthopaedics and Sports Medicine, Erasmus University Medical Center, Rotterdam, Zuid-Holland, The Netherlands | Department of Orthopaedics and Sports Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands

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