Patellar resurfacing versus no resurfacing in two-stage revision of infected total knee arthroplasty.

Background: Cartilage debridement and staged reimplantation are the most common treatments for infected total knee arthroplasty (TKA). Very few studies have focused on the management of primarily non-resurfaced patellae in infected TKA. The purpose of this study was to compare the outcomes of patellar resurfacing and non-resurfacing in two-stage revision of infected TKA.

Evaluation of the alpha angle in asymptomatic adult hip joints: analysis of 994 hips.

Introduction: Numerous studies on cam femoroacetabular impingement (FAI) causing osteoarthritis have been conducted in Western populations, but not in Asian populations. The alpha angle in cam type FAI can be measured by routine hip AP and axial radiographs. The purpose of this study was to determine the range of alpha angles in an asymptomatic Asian cohort.

Contemporary total hip arthroplasty with and without cement in patients with osteonecrosis of the femoral head: a concise follow-up, at an average of seventeen years, of a previous report.

We previously evaluated ninety-eight consecutive patients (148 hips) at mean of 9.3 years after total hip arthroplasty; the mean age at the time of the index surgical procedure was 47.3 years.

Is hydroxyapatite coating necessary to improve survivorship of porous-coated titanium femoral stem?

We compared the clinical and radiologic results in 55 patients (110 hips) associated with proximally porous-coated titanium stems that were identical in geometry but differed with regard to proximal surface treatment (with or without hydroxyapatite coating). The mean age at the time of the operation was 46.3 years (27-63 years), and mean length of follow-up was 15.

Is intra-articular multimodal drug injection effective in pain management after total knee arthroplasty? A randomized, double-blinded, prospective study.

We performed a prospective, double-blinded, randomized, and controlled study to assess the clinical efficacy and safety of intra-articular multimodal drug injection after total knee arthroplasty. Two hundred eighty-six patients undergoing simultaneous bilateral total knee arthroplasty were randomized to receive the injection of multimodal drugs in one knee and normal saline solution as a placebo in the contralateral knee. All patients received patient-controlled analgesia for 48 hours after surgery, followed by standard analgesia.

Comparison of the low contact stress and press fit condylar rotating-platform mobile-bearing prostheses in total knee arthroplasty: a prospective randomized study.

Background: To our knowledge, no study to date has compared the clinical results of posterior cruciate-sacrificing mobile-bearing total knee replacements with those of posterior-stabilized mobile-bearing total knee replacements in the same patients. The purpose of the present study was to compare the clinical and radiographic results of these two designs. We hypothesized that the results would be better for knees treated with the posterior-stabilized mobile-bearing prosthesis.

Periacetabular osteolysis is the problem in contemporary total hip arthroplasty in young patients.

We retrospectively reviewed 474 patients (492 hips) with a contemporary cemented total hip arthroplasty (THA) (mean age, 38.9 years) and 504 patients (532 hips) with a cementless THA (mean age, 39.3 years).

A prospective short-term outcome study of a short metaphyseal fitting total hip arthroplasty.

The purpose of this study was to determine whether the short, metaphyseal fitting femoral stem would achieve stable fixation without diaphyseal fixation. A total of 126 patients (144 hips) were included in the study, and their mean age was 53.9 years (26-65 years).

Diagnostic dilemma of tuberculosis in the foot and ankle.

Background: Isolated involvement of bone in tuberculous infection is uncommon, and the variable clinical and radiological features may mimic pyogenic osteomyelitis, bone tumor or other inflammatory and neoplastic processes of the synovium. We have reported our experiences with the diagnosis of tuberculosis infection in the ankle and foot with the hope of providing sufficient information about these cases to lead to early diagnosis.

Materials And Methods: We treated 15 patients with tuberculosis involving the foot and ankle between 1995 and 2005.