Pyomyositis of the anterior tibial compartment.

Five oncology patients developed bacterial pyomyositis involving the anterior tibial compartment and resulting in compartment syndrome with ischemia and abnormalities of neuromuscular function. All patients were neutropenic and thrombocytopenic, and four were receiving or had recently received cancer chemotherapy. Three infections were due to gram-negative bacilli and two to Staphylococcus aureus.

Surface replacement of the hip with the Tharies system. Two to five-year results.

The two to five-year clinical results of 200 Tharies surface replacements were comparable to those of conventional total hip replacement. The incidence of systemic complications, dislocations, and sepsis was low. There were ten cases of aseptic and one case of septic loosening.

In vivo knee stability. A quantitative assessment using an instrumented clinical testing apparatus.

Twenty-eight male and twenty-one female subjects with no history of previous injury to their knees were examined using a newly developed clinical testing apparatus designed to record anterior-posterior tibial force versus displacement and varus-valgus moment versus angulation during manual manipulation of the knee. Joint stiffness and laxity were measured from test tracings made with the knee muscles relaxed and tensed. Agreement between these measurements and those made previously on thirty-five fresh cadaver knee specimens was very good.

THARIES surface replacements: a review of the first 100 cases.

The first 100 cases of the 135 THARIES surface replacement procedures with 4--32 months follow-up, are evaluated in terms of clinical results, radiographic information and complications. The short but detailed follow-up suggests that this procedure was an excellent alternative for the younger and more active population. The overall hip ratings (pain, walking and function) and range of motion are comparable to that of stem-type total hip replacements.