We studied the perioperative blood loss in 100 total hip arthroplasties performed for rapidly destructive coxarthrosis and compared it with the blood loss in 100 total hip arthroplasties for regular coxarthrosis. The treatment protocol was identical in both groups. Total blood loss was calculated as the compensated blood loss (volume transfused during and immediately after surgery) and the non-compensated blood loss using Nadler and Mercuriali formula. The mean blood loss calculated in milliliters of red blood cells (100% haematocrit) was 578 ml in regular coxarthrosis and 945 ml in rapidly destructive coxarthrosis. The blood loss after total hip arthroplasty is greater when surgery is performed for rapidly destructive coxarthrosis than for regular coxarthrosis (P < 0.001).
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