TY - JOUR T1 - Navigated shorter incision or smaller implant in knee arthritis? AU - Confalonieri,N, AU - Manzotti,A, AU - Pullen,C, PY - 2007/6/26/pubmed PY - 2007/11/8/medline PY - 2007/6/26/entrez SP - 63 EP - 7 JF - Clinical orthopaedics and related research JO - Clin Orthop Relat Res VL - 463 N2 - Minimally invasive approaches for unicompartmental knee arthroplasty are well-accepted for treating knee arthritis because of the smaller implant size, shorter operative time, and tissue-sparing nature of the procedure. With the introduction of computer alignment systems, a well-aligned and balanced total knee arthroplasty (TKA) can be achieved even with smaller surgical exposures. We hypothesized a unicompartmental knee arthroplasty would provide better midterm outcomes than a computer-assisted minimally invasive TKA in patients with isolated medial compartment knee arthritis. We matched (preoperative arthritis severity, age, gender, and preoperative range of motion) 64 knees that had a medial unicompartmental knee arthroplasty or a mini-incision computer-assisted TKA. All patients had a varus deformity no greater than 8 degrees and a body mass index lower than 30 kg/m. Patients were followed a minimum of 48 months. In the mini-incision computer-assisted TKA group, all the implants were positioned within 4 degrees of ideal alignment. The surgical time and hospital stay were longer in the computer-assisted TKA group. A unicompartmental knee arthroplasty was estimated to cost at least 3100 euros (approximately US $4100) less. The clinical assessment showed higher functional and Italian Orthopaedic UKA Users Group scores for the unicompartmental knee arthroplasty group. SN - 0009-921X UR - https://www.unboundmedicine.com/medline/citation/17589366/Navigated_shorter_incision_or_smaller_implant_in_knee_arthritis L2 - https://Insights.ovid.com/pubmed?pmid=17589366 DB - PRIME DP - Unbound Medicine ER -