Total knee arthroplasty in patients on workers' compensation: a matched cohort study with an average follow-up of 4.5 years.

Little information in the literature exists regarding the outcome of total knee arthroplasty (TKA) in patients who are on workers' compensation (WC). Twenty-one WC patients who underwent 23 TKA procedures (cases) were compared with 16 randomly selected, age-matched control patients (controls) undergoing 21 TKA procedures. The mean follow-up was 56 months (34-112 months) for both groups.

Functional outcome after revision hip arthroplasty: a metaanalysis.

The current study systematically reviews the literature describing patient outcomes after revision total hip arthroplasties using conventional global hip score ratings. Two thousand one hundred thirty-seven English-language articles published from 1966 through 2000 were identified through a computerized literature search and bibliography review. A three-step filter process was used to identify articles to be included in the metaanalysis.

Hip pain in a case of hypophosphatemic osteomalacia.

Hypophosphatemic rickets, a rare metabolic bone disease, presents mainly in children but has also been reported in several adults. In this report, we describe the case of a man presenting with hip pain and weakness, both of several months' duration, and tested for hypophosphatemic rickets. The patient was eventually referred to a tertiary-care center, where he was diagnosed with bilateral subtrochanteric femoral stress fractures and severe osteopenia secondary to hypophosphatemic osteomalacia.

Aspergillus infection after total knee arthroplasty.

The literature includes little information about the treatment protocol for Aspergillus infection after total knee arthroplasty. In this article, we describe the case of a nonimmunocompromised patient who lacked predisposing risk factors and who initially presented with aseptic loosening of a total knee prosthesis that postoperatively had grown Aspergillus niger. Intraoperative culture and frozen-section results for the pseudocapsule were negative.

Systemic complications following total hip arthroplasty.

Total hip arthroplasty (THA) has stood the test of time in improving the human quality of life. However, there remain associated complications. Although there is a low incidence of complications, the typical complications following THA have been well described in the literature, including infection, dislocation, wear, thromboembolic disorders, and intraoperative fracture.

Thromboembolic complications after total hip arthroplasty.

Thromboembolic disorders are worrisome complications following total hip arthroplasty, and the best way to address such complications is by prevention. Several regimens have been advocated to decrease the risk of thromboembolic disorders. A combination of pharmacologic and nonpharmacologic measures helps reduce the incidence of deep venous thrombosis and, hence, pulmonary embolization.

The cementless femoral stem revisited.

Despite the success of Sir John Charnley's cemented total hip arthroplasty (THA), large numbers of patients demonstrated mechanical failure due to loosening. The two main initial concerns were infection and wear. With the recent advances in antibiotics and aseptic techniques and with improvement in surgical technique, the incidence of infection has decreased tremendously.

Total knee arthroplasty after varus osteotomy of the distal part of the femur.

Background: There is little information in the literature regarding the outcome of total knee arthroplasty following distal femoral varus osteotomy. The purpose of the present study was to evaluate the intermediate-term results of total knee arthroplasty following distal femoral varus osteotomy.

Methods: The study group consisted of nine consecutive patients (eleven knees) who had had a total knee arthroplasty following varus osteotomy of the distal part of the femur.

Comparison of commonly used orthopaedic outcome measures using palm-top computers and paper surveys.

Introduction: Measuring patient-perceived outcomes following orthopaedic procedures have become an important component of clinical research and patient care. General and disease-specific outcomes measures have been developed and applied in orthopaedics to assess the patients' perceived health status. Unfortunately, paper-based, self-administered instruments remain inefficient for collecting data because of: (a) missing data (b) respondent error, and (c) the costs to administer and enter data.

Complications of total hip arthroplasty.

Complications following hip arthroplasty have a wide variation and range in incidence from 1.1% for pulmonary embolism to over 70% for infrapopliteal deep vein thrombosis. Recognition of the risk factors and all of the possible types of complications places the surgeon in a better position to detect such complications and formulate a plan to treat them.

Bone assessment and reconstruction in revision hip surgery.

As a result of septic and aseptic complications, total hip replacements can fail and consequently have finite life expectancies. One of the most challenging aspects of revision surgery is the management of bone loss. We present a classification that maps the severity of bone loss with a variety of reconstructive options, which include cemented and uncemented fixations.