Objective: The aim of this study was to validate the well-recognized outcome measure instruments (Medical Outcome Study Short Form-SF-36, Western Ontario and McMaster University Osteoarthritis Index-WOMAC, McMaster Toronto Arthritis Patient Preference Disability Questionnaire-MACTAR) for patients who had undergone total knee arthroplasty in Iran, with its cultural and ethnic differences and com...

BACKGROUND Physical activity levels are decreased and sedentary behaviour levels are increased in patients with knee osteoarthritis (OA). However, previous studies have shown that following total knee arthroplasty (TKA), objectively measured physical activity levels do not change compared to before the surgery. Very few studies have objectively assessed sedentary behaviour following TKA. This s...

The surgical goal of primary total knee arthroplasty (TKA) is to provide a well-balanced soft-tissue envelope surrounding a well-aligned, well-fixed implant. Some knee surgeons have emphasized that a good outcome in primary TKA is more dependent on soft-tissue management than bone management. Thus, it is imperative that the surgeon is familiar with knee soft-tissue balancing techniques to addre...

We report a case of bony ankylosis of the knee secondary to severe and extensive heterotopic ossification over 9 years after primary total knee arthroplasty in a 71-year-old woman.

BACKGROUND Surgical site infection (SSI) is a major complication following total joint arthroplasty. Host susceptibility to infection has emerged as an important predictor of SSI. The purpose of this study was to develop and validate a preoperative SSI risk-assessment tool for primary or revision knee and hip arthroplasty. METHODS Data for 6,789 patients who underwent total joint arthroplasty...

One component of conventional total knee arthroplasty is removal of the anterior cruciate ligament, and the knee after total knee arthroplasty has been said to be a knee with anterior cruciate ligament dysfunction. Bicruciate stabilized total knee arthroplasty is believed to reproduce anterior cruciate ligament function in the implant and provide anterior stability. Conventional total knee arth...

OBJECTIVE To determine whether the rates of hospitalization for 4 manifestations of severe rheumatoid arthritis (RA), which are used as indicators of long-term health outcomes, have changed from 1983 to 2001. METHODS Data on all patients with RA who were hospitalized with rheumatoid vasculitis or to undergo splenectomy for Felty's syndrome, cervical spine fusion for myelopathy, or total knee ...

OBJECTIVES we determined the yearly prevalence of single and multiple falls in persons with or at risk of knee osteoarthritis (OA) and persons undergoing knee arthroplasty over an 8-year period. We also compared annual fall rates among persons with and without knee arthroplasty to determine if fall rates are associated with knee arthroplasty. METHODS we studied 4,200 persons from the Osteoart...