Hammouda Ahmed I, Jauregui Julio J, Gesheff Martin G, Standard Shawn C, Conway Janet D, Herzenberg John E
*International Center for Limb Lengthening, Rubin Institute for Advanced Orthopedics, Sinai Hospital of Baltimore, Baltimore, MD; †Department of Orthopaedic Surgery, Al-Azhar University, Cairo, Egypt; and ‡Department of Orthopaedics, University of Maryland Medical Center, Baltimore, MD.
J Orthop Trauma. 2017 Jul;31(7):369-374. doi: 10.1097/BOT.0000000000000828.
To evaluate the outcomes of lengthening post-traumatic femoral segments using a recently available magnetic intramedullary (IM) lengthening system.
Retrospective cohort study.
Urban level II Trauma Center.
PATIENTS/PARTICIPANTS: Patients treated for post-traumatic femoral shortening at our institution between 2012 and 2015. We identified 17 femurs lengthened (14 men and 3 women). The mean age was 30 years (range, 11-72 years).
Magnetic IM lengthening system.
Amount of lengthening achieved, consolidation index, and complications encountered.
The mean follow-up was 2.2 years (range, 1-3.7 years). Sixteen patients achieved the planned lengthening, a mean of 3.8 cm (range, 2.3-6.0 cm). Regenerate consolidation occurred at a mean of 119 days (range, 57-209 days). The mean consolidation index was 32 d/cm (range, 16-51 d/cm). Three patients (18%) experienced complications.
IM lengthening nails are an improvement over external fixators for treatment of post-traumatic femoral shortening. Within certain limits, their use can be extended to problems of limb-length discrepancy with angular/rotational deformity.
Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
使用一种最近可用的磁性髓内（IM）延长系统评估创伤后股骨节段延长的效果。
回顾性队列研究。
城市二级创伤中心。
患者/参与者：2012年至2015年在本机构接受创伤后股骨缩短治疗的患者。我们确定了17例股骨延长患者（14名男性和3名女性）。平均年龄为30岁（范围11 - 72岁）。
磁性髓内延长系统。
实现的延长量、骨愈合指数和遇到的并发症。
平均随访2.2年（范围1 - 3.7年）。16例患者实现了计划的延长，平均延长3.8厘米（范围为2.3 - 6.0厘米）。再生骨愈合平均发生在119天（范围57 - 209天）。平均骨愈合指数为32天/厘米（范围16 - 51天/厘米）。3例患者（18%）出现并发症。
髓内延长钉在治疗创伤后股骨缩短方面比外固定架有所改进。在一定限度内，其应用可扩展到伴有角/旋转畸形肢体长度不等的问题。
治疗性四级。有关证据级别的完整描述，请参阅作者指南。
