Computer-assisted total knee arthroplasty using mini midvastus or medial parapatellar approach technique: A prospective, randomized, international multicentre trial.

ABSTRACT: Despite the growing evidence in the literature there is still a lack of consensus regarding the use of minimally invasive surgical technique (MIS) in total knee arthroplasty (TKA).A prospective, randomized, international multicentre trial including 69 patients was performed to compare computer-assisted TKA (CAS-TKA) using either mini-midvastus (MIS group) or standard medial parapatellar approach (conventional group). Patients from 3 centers (Maastricht, Zwickau, Adelaide) with end-stage osteoarthritis of the knee were randomized to either an MIS group with dedicated instrumentation or a conventional group to receive cruciate retaining CAS-TKA without patella resurfacing. The primary outcome was to compare post operative pain and range of motion (ROM). The secondary outcome was to measure the duration of surgery, blood loss, chair rise test, quadriceps strength, anterior knee pain, Knee Society Score (KSS),WOMAC scores, mechanical leg axis and component alignment.Patients in the MIS group (3.97?±?2.16) had significant more pain at 2 weeks than patients in the conventional group (2.77?±?1.43) p?=?0.003. There was no significant difference in any of the other primary outcome parameters. Surgery time was significantly longer (p?

SUBMITTER: Feczko P 

PROVIDER: S-EPMC4711101 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature