Abstract
In February and March 2004, 35 hip and 15 knee arthroplasties were performed. Indications for surgery included primary OA, avascular necrosis and fractures. Revision surgery was performed for aseptic loosening and recurrent dislocations. There were three revision hip arthroplasties and three arthroplasties were done for subcapital femoral fractures. The mean age of the patients was 64.2 years (33 to 84). The male to female ratio was 1:1.5. Both cemented and uncemented implants were used.
In the hip arthroplasties, the mean intraoperative blood loss was 515 ml (300 to 1520 ml). Intraoperative blood loss was minimal in the knee arthroplasties. Postoperative suction drainage averaged 477 ml for the hips and 925 ml for the knees. Postoperative blood transfusions were administered in seven patients. The mean time to mobilisation was 3 days postoperatively, and discharge was on day seven.
Early complications included superficial cellulitis in four patients, who were treated with intravenous antibiotics. After a knee replacement one patient developed a haematoma, which drained spontaneously. One patient had an early dislocation. Three patients developed upper respiratory tract infections. One 32-year-old man developed intraoperative pulmonary fat embolism and required ventilation for 24 hours. Following a knee replacement, one patient developed a transient drop foot, which improved after 24 hours. No incidence of clinical DVT was encountered.
Hip and knee arthroplasties are major procedures. Adequate preoperative evaluation to identify potential risks could limit major complications.
Secretary: Dr H.J.S. Colyn, Editor: Professor M.B.E. Sweet. Correspondence should be addressed to SAOA, Box 47363, Parklands, Johannesburg, 2121, South Africa.
