PURPOSE To report the outcome of revised total hip arthroplasty procedures involving an anterior cortical window, extensive strut allografts, and an Exeter impaction graft. METHOD Eight patients (9 hips) with a mean age of 58 years underwent revision of total hip arthroplasty using the Exeter hip impaction graft system and strut allografts between 1995 and 1998. An extensile anterior approach...

Recent reports suggest that uncemented total hip replacement arthroplasty (THR) results in favorable short- to mid-term clinical results. In the present study, we assessed the mid-term clinical results of VerSys Hip System uncemented THR at our hospital. MATERIALS AND METHODS We studied patients who received THR using VerSys Hip System and who could be followed-up more than 3 years. Clinical ...

BACKGROUND The treatment of end-stage hip disease in very young patients is controversial, with advocates for nonoperative treatment, hip arthrodesis and replacement procedures. The functional improvements in this group of patients are not well documented and whether the condition for which the surgery is performed influences function. QUESTIONS/PURPOSES We determined whether (1) modern THA p...

This work presents a three-dimensional FE frictional contact formulation with NURBS-enriched elements for the debonding of partially osseointegrated, cementless implants. The model is based on modified Coulomb's friction law [1] that can tangential osseointegrated Here, smooth transition function between two coefficients used to decrease due implant. applied simulate hip implant determine influ...

BACKGROUND The number of total hip arthroplasties in patients under 30 years is increasing over the years. Almost all of them will face at least one or more future revisions in their life. Therefore, the implant used should have a high survival rate, and needs to be easily revisable resulting in a low re-revision rate. Several studies have evaluated the outcome of total hip arthroplasties in pa...

BACKGROUND AND PURPOSE Treatment of displaced femoral neck fractures in Sweden has shifted towards more arthroplasties, especially hemiarthroplasties. We describe the hemiarthroplasty population in Sweden 2005 through 2009. METHODS Since 2005, the Swedish Hip Arthroplasty Register has registered hemiarthroplasties on a national basis. We assessed hemiarthroplasty procedures in the Register 20...

INTRODUCTION Hip fractures, which are common among old patients, are classified into two groups: intracapsular and extracapsular fractures. Extracapsular fractures can be treated with extramedullary implants [e.g. dynamic hip screw (DHS)] or intramedullary nails. Dynamic hip screw is the treatment of choice in stable pertrochanteric fractures. Intrapelvic migration of the sliding screw is a ver...

Factors such as patient selection, surgical technique, and durable fixation of the components are critical in surface arthroplasty of the hip. The Surface Arthroplasty Risk Index helps determine the risk of failure, with an index score </=3 having a 97% survivorship at 4 years. Because surface arthroplasty of the hip is conservative in nature and has the goal to closely reproduce the normal ana...

OBJECTIVE To evaluate the clinical and radiographic results from patients who underwent femoral reconstruction secondary to loosening of total hip arthroplasty, using circumferential proximal femoral allografts and cemented implants. METHODS A retrospective study was conducted on 32 patients (33 hips) who underwent femoral reconstruction secondary to loosening of total hip arthroplasty, using...

In 1946, the Judet brothers performed their first ‘resectionreconstruction’ of the femoral head (Judet 1947) using a prosthesis made entirely of polymethylmethacrylate (PMM.A). The early implants broke frequently and were later reinforced by a steel rod (Judet and Judet 1950). Failures continued, however, and use of the prosthesis was abandoned decades ago. Case report. In 1952, a 12-year-old g...