Femoral Extramedullary Versus Intramedullary Alignment Systems in Total Knee Arthroplasty
Femoral Extramedullary Versus Intramedullary Alignment Systems in Total Knee Arthroplasty
A prospective study will be performed to compare the clinical outcome after total knee
 arthroplasty (TKA) using two different alignment systems: an extramedullary system versus an
 intramedullary system. The extramedullary femoral alignment system is newly designed. These
 two systems are used to make the distal femoral resection in 100 patients in a random order.
Inclusion Criteria:

 -  Varus knee; degrees of extra articular deformity < 15°; Knee Osteoarthritis; Straight
 limited < 30°; range of knee flexion > 90°; No hip abnormalities

 Exclusion Criteria:

 -  Valgus knee; degrees of extra articular deformity > 15°; Knee infection; Rheumatic
 arthritis; Ankylosing Spondylitis; Prior femoral surgery