Dalury David F, Dennis Douglas A
Orthopaedic Associates, Inc., Baltimore, MD, USA.
Clin Orthop Relat Res. 2005 Nov;440:77-81. doi: 10.1097/01.blo.0000185757.17401.7b.
Interest in minimal-incision total knee arthroplasty has increased in recent years. We compared a group of 30 patients who had total knee arthroplasty with a mini-incision to a similar group of 30 patients who had total knee arthroplasty with a standard length incision. The minimal-incision group had some minor early advantages (less pain medication use, earlier improvement in range of motion), but these advantages dissipated by 3 months followup. Radiographic evaluations showed that four of the 30 patients with minimal incisions had tibial component varus malalignment (< 87 degrees ), whereas no patients with the standard length incision had malalignment. Although total knee arthroplasty performed using a minimal incision may provide some early advantages, minimal incisions can impede a surgeon's vision and may influence component alignment and possibly compromise long-term outcome.
Therapeutic study, Level III-1 (retrospective comparative study). See the Guidelines for Authors for a complete description of levels of evidence.
近年来，对微创全膝关节置换术的兴趣有所增加。我们将一组30例行微创全膝关节置换术的患者与另一组30例行标准长度切口全膝关节置换术的类似患者进行了比较。微创组有一些轻微的早期优势（使用的止痛药物较少，活动范围改善较早），但这些优势在随访3个月时消失。影像学评估显示，30例微创患者中有4例出现胫骨组件内翻畸形（<87度），而标准长度切口的患者中没有出现畸形。虽然使用微创进行全膝关节置换术可能会带来一些早期优势，但微创会妨碍外科医生的视野，可能影响组件对齐，并可能损害长期疗效。
治疗性研究，III-1级（回顾性比较研究）。有关证据水平的完整描述，请参阅作者指南。
