Effects of shallow attached bone stripping release of medial collateral ligament in total knee arthroplasty surgery

Objective To analyze the effects of shallow attached bone stripping release of medical collateral ligament in the soft tissue balancing. Methods Forty-four cases with knee prosthesis admitted to Chinese PLA General Hospital from June 1 ， 2013 to August 15， 2014 were selected， patients were divided into control group and experimental group according to whether shallow attached bone stripping release of medial collateral ligament was adopted or not. The change status of medial tibia clearance of experimental group before and after release， the activity of both groups after operation， and the difference of knee function grading 3 months after operation were compared. Results The shallow attached bone stripping release of medial collateral ligament could provide （1.88±1.05） mm and （2.23±1.00） mm releasing degree in the buckling tibia clearance and straight shank stock clearance. The difference of activity degree and knee function score at 3 months after operation was insignificant. Conclusion The releasing caused by the attached bone stripping release of the superficial medial collateral ligament is limited. If the medial gap of the knee joint after osteotomy during the operation is too tense， it requires other methods to balance the lateral and internal gaps.