Paul F. Lachiewicz

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The senior one of us performed 438 primary and 181 revision total hip arthroplasties with use of so-called modern prostheses between July 1983 and January 1994. Fifty-three patients, who had had forty-seven primary procedures and twelve revisions, either died or were lost to follow-up less than two years after the operation and were excluded from the study.(More)
Two clinical studies, one prospective randomized and one retrospective, were performed to evaluate the relationship of femoral head size and acetabular component outer diameter to the prevalence of dislocation of the modular total hip replacement. Between October 1995 and April 1996, 31 primary total hip arthroplasties in 30 patients were randomized to a(More)
This clinical practice guideline is based on a systematic review of published studies on the management of adult patients undergoing total hip replacement (THR) or total knee replacement (TKR) aimed specifically at preventing symptomatic pulmonary embolism (PE). The guideline emphasizes the need to assess the patient's risk for both PE and postoperative(More)
From 1971 to 1980, forty-five patients with juvenile rheumatoid arthritis had eighty-three cemented total hip replacements at The Hospital for Special Surgery and North Carolina Memorial Hospital. Thirty-four of these patients, with sixty-two involved hips, returned for examination and radiographs. The average age of these thirty-four patients at the time(More)
Thirty-five porous-coated total hip arthroplasties were implanted in 25 patients with juvenile-onset or adult-onset rheumatoid arthritis and prospectively followed for a mean of 4.5 years (range, 3-6.5 years). Using the Harris hip rating, the mean hip score at the final follow-up evaluation was 91, and 86% of the hips had a good or excellent result.(More)
The use of constrained prostheses in primary total knee arthroplasty (TKA) is unusual. This is a study of the indications, clinical results, and 10-year survival of these components. Fifty-four knees (44 patients) were prospectively followed, and 42 knees (34 patients) had 5 to 16 years (mean, 9 years) of follow-up. The indications for the components were(More)
Anterior iliopsoas impingement and tendinitis is a poorly understood and likely underrecognized cause of groin pain and functional disability after total hip arthroplasty. The patient history and physical examination findings are usually only suggestive, and the symptoms frequently subtle. The diagnosis may be confirmed by one or more imaging studies,(More)
Fifteen supracondylar fractures of the femur in patients with ipsilateral total knee arthroplasties were treated between 1975 and 1982. Three groups were identified for analyzation of treatment and end result. The average follow-up period after fracture was 18 months, with a range of ten to 48 months. Group I had four patients treated by closed reduction,(More)
Sixty-four operative procedures were performed on 55 patients with knee arthroplasties for pain, loosening, instability, or suspicion of infection. Forty-three knees had a preoperative aspiration. In 19 knees, the aspiration showed growth on solid media, and in 18 of these knees the diagnosis of infection was confirmed by the intraoperative cultures. In 1(More)