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In a retrospective study of 60 infected total knee arthroplasties (TKAs), attempted implant salvage of 39 knees was performed with surgical debridement and antibiotic therapy. In seven of the 39 knees (17.9%), infection was successfully eradicated, with a mean follow-up examination of 4.1 years. In comparing knees with successful salvage to those with(More)
Since 1977, we have performed twenty-one core decompressions in seventeen patients who had stage-I or II ischemic necrosis of the femoral head. The diagnosis was confirmed histologically in all but one patient. After a mean length of follow-up of thirty-nine months, healing was evident in eight hips (40 per cent) but not in the other twelve. All twelve hips(More)
Stress fractures of the calcaneus constitute about 25% of all stress fractures seen during Marine recruit training, and are often bilateral. The incidence can be correlated with individual physical condition at the onset of training. There was no correlation with age, height, weight, or foot architecture. In 114 women Marine recruits the incidence was(More)
Traumatic dislocation of the knee, an uncommon injury, is sustained as the result of violent trauma. Thirty documented cases of complete traumatic dislocation of the tibia from the femur are identified and retrospectively reviewed. Twenty had adequate documentation with a minimum two-year follow-up to evaluate the results of operative versus nonoperative(More)
The extent of in vivo induced structural alterations were evaluated in 13 retrieved implants ranging from two weeks' to seven years' implantation. A statistically significant difference in crystallinity was seen between weight-bearing and non-weight-bearing regions of the implants. Further, in the weight-bearing region, crystallinity was higher in(More)
A pseudomembranous structure that has the histological characteristics of a foreign-body-like reaction invariably develops at the bone-cement interface in the proximity of resorption of bone around aseptically loosened cemented prostheses. This study was an attempt to implicate polymethylmethacrylate in this resorptive process. Unfractionated(More)
A pseudomembranous structure invariably develops at the cement-bone interface of implanted prostheses in association with aseptic loosening. The tissue has histological characteristics of a foreign body reaction presumably initiated by repetitive microtrauma-associated release of methacrylate cement and polyethylene wear debris. Explant cultures of(More)
We reviewed the cases of thirty-six patients who had forty cemented total hip replacements with the Harris metal-backed acetabular component. The operations were done between 1972 and 1977, and the duration of follow-up averaged 7.6 years (range, five to 10.8 years). The average age of the patients was forty-four years (range, sixteen to sixty-two years).(More)
Continuous bupivacaine epidural analgesia was compared with conventional methods of systemic analgesic administration in the management of postoperative pain in 30 patients for 3 days following total knee replacement surgery. Patients given continuous epidural analgesia had significantly better pain relief (visual analogue scale, global evaluation), needed(More)