Impaction High Tibial Osteotomy の手術法と短期成績

抄録

Good results from High Tibial Osteotomy have been reported in numerous papers on medial compartmental osteoarthritis of the knee. But the delayed start of weight bearing or delayed discharge from hospital remains a problem. We developed a new operating procedure for high tibial osteotomy to resolve this problem.
The most characteristic point of this new procedure is not to resect but impact and collapse the wedged cancellous bone of the proximal tibia at the time of closed osteotomy. The Giebel plate is inserted at the beginning and the SURFIX locking plate is used later for internal fixation material.
Five male and seven female patients were treated by the newly developed method. Their mean age was 62.4 years and the mean duration from the operation was 8.1 months. The mean period of starting full weight bearing was 3.7 weeks and the duration of hospital stay was 7.1 weeks, which were both shorter than those of interlocking wedge osteotomy. The mean knee score of the Japanese Orthopaedic Association changed from 67 to 83.5 after the treatment. There were no marked complications except three cases of skin irritation caused by the head of the Giebel plate, which were reduced with removal of the plate.