The Discussion On The Problems Of Valgus Knee Deformity Which Was Cured By Total Knee Arthroplasty

Objective: To discuss the problems of the valgus knee which was cured by total kneearthroplasty such as the preparation for operation, femoral and tibial osteotomy and thebalance of soft tissue. Methods: Retrospective analysis of the clinical data from2005April~2011December treated66patients with79valgus knee which was cured by totalknee arthroplasty. Age24~77years old, average age is53years old; male23cases and30knees, female43cases and39knees; weight48~82kg, average body weight65kg, bodymass index27±4.1; according to Keblish ’s turn rating malformation,30mild knees43moderate knees,6severe knees;66cases of79patients with osteoarthritis in43knees,rheumatoid arthritis in23knees, traumatic arthritis in5knees, tuberculosis of knee joint in2knees, pigmented villonodular synovitis in1knee, ankylosing spondylitis in2knees;including5cases with ankylosis,8patients with contralateral knee varus; unilateralreplacement in53cases, bilateral replacement in13cases; intraoperative use of medialparapatellar approach of operation, standard equivalent osteotomy, soft tissue releasetension, intraoperative findings, the knee joint peripheral ligament balance force line asreference method for artificial joint replacement in the treatment of knee valgus deformity.By comparing the change, after the operation the datas of femoral and tibial angle andHSS knee scoring scale assessment of functional outcome in patients with preoperativeand postoperative. Results:66cases of79patients with knee were followed up, thefollow-up of8~90months, mean follow-up of37months. The average operation time was97min (85~120min); the average amount of blood transfusion was158ml (0~600ml);the average femorotibial angle by valgus preoperative (17±4.3)°was reduced to (3±1.3)°after operation; average HSS score was increased from preoperative (36±3.7) points to12months after operation (82±4.2) points and36months after operation (85±5.3)points. There are1postoperative infection knee,1postoperative wound healing knee,1postoperative adhesion knee,2postoperative knee flexion unfunctional recoveryknees.Conclusion: The total knee arthroplasty in treatment of valgus knee is alreadyroutinal operation therapy in valgus knee treatment currently. Using the medialparapatellar approach of operation; standard equivalent osteotomy; soft tissue releasetension which is followed by intraoperative findings, the method of total knee arthroplastyin the treatment of valgus knee deformity with the combination of early postoperative jointfunction exercises, the treatment effect was satisfactory.