Clinical and Radiological Outcomes of Total Knee ArthroplastyPerformedwith Midvastus and MedialParapatellar Approaches inObese Patients

)e use of total knee arthroplasty (TKA) for primary osteoarthritis of the knee has remarkably increased recently. Weaimed to compare the clinical and radiological outcomes of TKA in obese patients (>30 kg/m2) operated with midvastus (MV) ormedial parapatellar (MPP) approaches.Methods. )is retrospective study was performed using data derived from 80 patients (70women; 10 men) with an average age of 66.17±5.42 (range: 54 to 77). Patients were allocated into 2 groups as for the type ofapproach conducted during TKA: group I (n�41) underwent TKA by MV approach, while the MMP technique was used in groupII (n�39).Results. Demographic, clinical, and radiological parameters included age, side of involvement, sex, BMI, diameters ofthigh and calf, length of incision, duration of operation, amount of bleeding and transfusion, duration of hospitalization andfollow-up, complications, and range of motion, as well as Knee Society Score (KSS) and Knee Society Function Score (KSFS).Patients with a higher BMI (≥35 kg/m2) experienced more profound bleeding and needed more transfusion of erythrocytesuspension. )e range of motion was more favorable in groups with BMI<35 kg/m2. )e functional outcomes as reflected in KSSand KSFS were much better in patients with BMI<35 kg/m2.Conclusions. Our data indicated that obesity can adversely influencethe clinical and radiological outcomes after TKA performed by both MV and MPP approaches. A careful analysis of patientcharacteristics and selection of appropriate operative procedures is critical. Further randomized, controlled trials on larger seriesmust be designed to elucidate the relationship between obesity and therapeutic outcomes after TKA with different approaches.