Department of Orthopaedic Surgery, The George Washington University, Washington, DC.
OrthoCarolina Hip and Knee Center, Charlotte, North Carolina.
JBJS Rev. 2020 Mar;8(3):e0044. doi: 10.2106/JBJS.RVW.19.00044.
Lateral unicompartmental knee arthroplasty affords excellent functional results and implant survivorship for properly selected patients. More high-quality studies are necessary to determine whether expanded indications for medial unicompartmental knee arthroplasty also apply to lateral unicompartmental knee arthroplasty. Operative adjuncts such as robotics, custom implants, and navigation technology hold promise in minimizing the technical burden and unfamiliarity of lateral unicompartmental knee arthroplasty. Improvements in lateral-specific implants may translate to operational efficiency and improved outcomes, but few lateral-specific implants currently exist. Mobile-bearing devices have increased rates of failure due to bearing dislocation, and further studies are warranted to evaluate this complication with newer designs. Future registry and cohort studies should show medial unicompartmental knee arthroplasty and lateral unicompartmental knee arthroplasty separately to allow for better understanding of the nuances and technical differences between these uniquely different procedures.
外侧单髁膝关节置换术为合适的患者提供了极好的功能结果和假体存活率。需要更多高质量的研究来确定内侧单髁膝关节置换术的扩展适应证是否也适用于外侧单髁膝关节置换术。手术辅助工具，如机器人、定制植入物和导航技术，有望减轻外侧单髁膝关节置换术的技术负担和陌生感。外侧专用植入物的改进可能转化为手术效率和改善的结果，但目前很少有外侧专用植入物。由于轴承脱位，活动衬垫装置的失败率增加，需要进一步的研究来评估较新设计的这种并发症。未来的登记和队列研究应分别显示内侧单髁膝关节置换术和外侧单髁膝关节置换术，以便更好地了解这些独特不同手术之间的细微差别和技术差异。
