Time trends in case-mix and risk of revision following hip and knee arthroplasty in public and private hospitals: a cross-sectional analysis based on 476,312 procedures from the Dutch Arthroplasty Register.

Background And Purpose: This study aims to assess time trends in case-mix and to evaluate the risk of revision and causes following primary THA, TKA, and UKA in private and public hospitals in the Netherlands.

Methods: We retrospectively analyzed 476,312 primary arthroplasties (public: n = 413,560 and private n = 62,752) implanted between 2014 and 2023 using Dutch Arthroplasty Register data. We explored patient demographics, procedure details, trends over time, and revisions per hospital type.

A Technique for Arthroscopic Osteochondral Autograft Transplantation of the Hip.

Osteochondritis dissecans of the hip is a rare condition with limited treatment options. For patients who have undergone arthroscopic microfracture and chondroplasty, long-term results showing clinical improvement are scarce. Although open osteochondral grafting is a demanding and invasive procedure, promising results are reported after short-term follow-up.

High incidence of intraoperative calcar fractures with the cementless CLS Spotorno stem.

Introduction: This study reports on the incidence of intraoperative calcar fractures with the cementless Spotorno (CLS) stem, and the potential role of a learning curve and implant positioning is investigated.

Methods: After introduction of the CLS stem, 800 consecutive cementless total hip arthroplasties (THA) were analyzed. The incidence of calcar fracture in the first 400 THA was compared with the second 400 THA, in order to study a potential learning curve effect.

Bone mineral density changes in the graft after acetabular impaction bone grafting in primary and revision hip surgery.

Background and purpose - Impaction bone grafting (IBG) is an established method in hip revision surgery to reconstruct loss of bone stock. There is limited knowledge concerning the actual bone remodelling process within the allograft. We investigated with repeated bone mineral density (BMD) measurements the biological process of bone remodelling in the allograft in vivo.

Translation, Cross-cultural Adaptation, and Validation of the Dutch International Hip Outcome Tool-33 (iHOT-33 NL) in Young, Physically Active Individuals With Symptomatic Hip Joint Pathology.

Study Design Prospective cohort. Background The international Hip Outcome Tool-33 (iHOT-33), developed in English, has been shown to be a valid and reliable questionnaire for young, physically active individuals with symptomatic hip joint pathology. Objectives To translate and validate the iHOT-33 in Dutch (iHOT-33 NL) in the target population.

The origins and current applications of classic eponymous terms for pelvic and acetabular fractures: A historic review.

We present the historical background of 5 eponymous terms in pelvic and acetabular injury treatment. The eponymous terms Duverney fracture, Malgaigne fracture, Judet-Letournel classification, Kocher-Langenbeck approach and Stoppa approach are discussed. After presenting the original description by the coining author, a short biography of the author is given.

A clinical observational study on patient-reported outcomes, hip functional performance and return to sports activities in hip arthroscopy patients.

Objectives: To describe data of short- and midterm results of hip arthroscopy patients based on patient-reported hip function, hip functional performance and return to sports activities.

Design: Observational cohort study.

Setting: Sports medical center.

Excessive polyethylene wear and acetabular bone defects from standard use of a hooded acetabular insert in total hip arthroplasty.

Purpose: In total hip arthroplasty (THA) the use of a polyethylene (PE) insert with a hooded rim can be considered to reduce dislocation risks. This benefit has to be balanced against the potential introduction of impingement of the femoral component on this rim. We present a case series of early acetabular revisions for excessive PE wear and acetabular bone defects from overuse of such a hooded rim insert.

Modular necks in primary hip arthroplasty without anatomical deformity: no clear benefit on restoration of hip geometry and dislocation rate. An exploratory study.

Modular necks were introduced in total hip arthroplasty (THA) to improve restoration of hip-geometry and reduce dislocation-rates. This presumed advantage was evaluated retrospectively for patients with arthritis in otherwise anatomically normal hips. Restoration of hip-geometry was assessed on preoperative and postoperative calibrated radiographs in 95 consecutive primary THAs with a modular neck design and compared with 95 match controlled THAs with a similar monoblock stem.

Can a triple pelvic osteotomy for adult symptomatic hip dysplasia provide relief of symptoms for 25 years?

Background: Many surgeons recommend pelvic osteotomy to treat symptomatic hip dysplasia in younger patients. We previously reported a cohort of patients at 10 and 15 years followup in which 65% of the patients showed no progression of osteoarthritis (OA).

Questions/purposes: The purposes of this study were to determine whether the triple osteotomy can provide (1) continuing pain relief and (2) function; and to determine the (3) incidence of OA and (4) number of patients undergoing THAs 23 years or more after triple osteotomy.

Diagnostics of femoroacetabular impingement and labral pathology of the hip: a systematic review of the accuracy and validity of physical tests.

Purpose: Femoroacetabular impingement (FAI) and labral pathology have been recognized as causative factors for hip pain. The clinical diagnosis is now based on MRI-A (magnetic resonance imaging-arthrogram) because the physical diagnostic tests available are diverse and information on diagnostic accuracy and validity is lacking. The purpose of this systematic review was to identify the diagnostic accuracy and validity of physical tests that are used to assess FAI and labral pathology of the hip joint.

Patient-Reported Outcome questionnaires for hip arthroscopy: a systematic review of the psychometric evidence.

Background: Hip arthroscopies are often used in the treatment of intra-articular hip injuries. Patient-reported outcomes (PRO) are an important parameter in evaluating treatment. It is unclear which PRO questionnaires are specifically available for hip arthroscopy patients.

Is there evidence for a superior method of socket fixation in hip arthroplasty? A systematic review.

Purpose: Total hip arthroplasty has been a very succesful orthopaedic procedure. The optimal fixation method of the acetabular component however, has not yet been defined.

Methods: We performed a systematic review using the Medline and Embase databases to find evidence for the superiority of cemented or cementless acetabular components on short- and long-term clinical and radiological parameters.

Subtalar arthroereisis for pediatric flexible pes planovalgus: fifteen years experience with the cone-shaped implant.

Flexible pes planovalgus is a common condition with flattening of the medial longitudinal arch accompanied by hindfoot valgus. Severe cases of pes planovalgus may need surgery, and a technique that has gained popularity over the past decades is subtalar arthroereisis. An endoorthotic implant of various shapes is inserted in the sinus tarsus, which limits the excessive eversion of the subtalar joint present in flexible pes planovalgus.

Equivalent correction in scarf and chevron osteotomy in moderate and severe hallux valgus: a randomized controlled trial.

Background: Chevron osteotomy is a widely accepted osteotomy for correction of hallux valgus.(18) Algorithms were developed to overcome the limitations of distal osteotomies. Scarf osteotomy has become popular as a versatile procedure that should be able to correct most cases of acquired hallux valgus.

Hallux valgus angle as main predictor for correction of hallux valgus.

Background: It is recognized that different types of hallux valgus exist. Classification occurs with radiographic and clinical parameters. Severity of different parameters is used in algorithms to choose between different surgical procedures.

Reorganization of gait after limb-saving surgery of the lower limb.

Objective: In this study, the concept of a cognitive dual-task performance and visual restriction during walking has been used to study the recovery of gait after limb-saving surgery in ten patients.

Design: All patients were recovering from some form of treatment to tumors of the lower limbs. Patients had to walk on a treadmill at their preferred speed.

Donor-site morbidity after free vascularized autogenous fibular transfer: subjective and quantitative analyses.

The purpose of this study was to determine the subjective and quantitative donor-site morbidity after removal of a free vascularized fibula flap for autoreconstruction. Ten patients and six age-matched, healthy control subjects were included in this study. The postoperative periods ranged from 6 to 87 months.