Kearney Sean P, Mosca Vincent S
Womack Army Medical Center, Department of Orthopedics and Rehabilitation, Fort Bragg, NC 28310, United States.
Seattle Children's Hospital, W-7706-Orthopaedics Administration, Seattle, WA 98105, United States.
J Orthop. 2015 Jan 27;12(1):17-22. doi: 10.1016/j.jor.2015.01.005. eCollection 2015 Mar.
BACKGROUND/AIMS: Patellar instability limits activity and promotes arthritis. Correcting genu valgum with selective hemiepiphyseodesis can treat patellar instability.
We retrospectively reviewed 26 knees with patellar instability and associated genu valgum that underwent hemiepiphyseodesis.
Average anatomic lateral distal femoral angle (aLDFA) significantly corrected. Symptoms improved in all patients. All competitive athletes returned to sports. One complication occurred.
In genu valgum, the patella seeks an abnormal mechanical axis, resulting in patellar instability. By correcting the mechanical axis with hemiepiphyseodesis, patellar instability symptoms improve and patients return to sports. Complications are rare. Selective hemiepiphyseodesis is recommended when treating patellar instability with associated genu valgum.
背景/目的：髌骨不稳定会限制活动并引发关节炎。通过选择性半骨骺阻滞术矫正膝外翻可治疗髌骨不稳定。
我们回顾性分析了26例接受半骨骺阻滞术治疗的伴有膝外翻的髌骨不稳定膝关节病例。
平均解剖学外侧远端股骨角（aLDFA）得到显著矫正。所有患者症状均有改善。所有竞技运动员均恢复运动。发生了1例并发症。
在膝外翻患者中，髌骨会寻求异常的力学轴线，导致髌骨不稳定。通过半骨骺阻滞术矫正力学轴线，髌骨不稳定症状得以改善，患者可恢复运动。并发症罕见。在治疗伴有膝外翻的髌骨不稳定时，推荐采用选择性半骨骺阻滞术。
