The Comparision of the Midvastus and Paramedian Approaches for Total Knee Arthroplasty

ABSTRACT

PURPOSE: To present the results of mdivastus and paramedian approach for total knee replacement arthroplasty (TKA). MATERIALS AND METHODS: Thirty two patients having bilateral total knee replacement arthroplasty were randomized prospectively-one knee having a vastus muscle-splitting approach(MVS) and the other knee having a median parapatellar approach(MPP)- to compare the difference in lateral release, operation time, postoperative ROM and drain amount, HSS score, return to SLR and extension lag at 2 weeks in TKA. RESULTS: The MVS approach offered an early advantages compared with MPP approach, especially in terms of lateral release[22(68.7%)on MPP and 5 15.6%) on MVS (p=0.014)], ROM at postoperative 2 week (p=0.043) and early return to SLR (p=0.023). There were no significant differences in operation time, postoperative ROM and drain amount, HSS score and extension lag. CONCLUSION: The MVS approach has the potential to improves the rapid restoration of quadriceps mus-cle control and to lead to reduction in the need for lateral release in TKA.