Service de chirurgie orthopédique, hôpital des Enfants, CHU de Toulouse, 330, avenue de Grande-Bretagne, 31059 Toulouse cedex, France.
Service de chirurgie orthopédique, hôpital Sud, CHU de Grenoble, avenue Kimberley, 38130 Échirolles, France.
Orthop Traumatol Surg Res. 2016 Apr;102(2):217-22. doi: 10.1016/j.otsr.2015.10.011. Epub 2016 Feb 10.
Intramedullary limb lengthening systems include mechanical systems (the Albizzia nail and the ISKD nail) as well as motorized systems with the Fitbone(®) (Wittenstein, Igersheim, Germany) and the Precice(®) (Ellipse Technologies, Irvine, CA, USA) nails. We hypothesized that limb lengthening using the Fitbone(®) nail was reliable, reproducible, and comfortable for the patient.
Between 2010 and 2013, a prospective single-center, single-operator (FA) study was conducted on patients who had undergone limb lengthening using the Fitbone(®) nail. The inclusion criteria were length discrepancy of the limbs equal to or greater than 25 mm or a short stature. The exclusion criteria were indications for cosmetic reasons and/or growth plates that were still open. The lengthening parameters were assessed postoperatively and at the last follow-up. Lengthening was considered achieved when the lengthening objective did not differ by more than 5 mm. All complications were noted. A statistical analysis was performed.
Twenty-six Fitbone(®) nails were implanted in 23 patients, in the femur in 15 cases and the tibia in 11 cases. The patients' mean age was 22.5 years (range: 15-53 years) and the mean follow-up was 3.4 years (range: 2-5.3 years). The limb lengthening targeted was obtained in 23 cases (88%) and the mean lengthening was 45.3±18 mm (range: 20-80 mm). The mean time to healing was 277±167 days (range: 86-638 days). The mean healing index was 73±57 days/cm for the femurs and 83.5±65 days/cm for the tibias. The mean complication rate was 15.4%.
This study emphasizes the good short-term results of this motorized intramedullary lengthening system. An evaluation over the longer term and with a higher number of patients remains necessary.
IV: uncontrolled, prospective, continuous study.
髓内肢体延长系统包括机械系统（阿比齐亚钉和 ISKD 钉）以及带有 Fitbone®（Wittenstein，Igersheim，德国）和 Precice®（Ellipse Technologies，Irvine，CA，美国）钉的电动系统。我们假设使用 Fitbone®钉进行肢体延长是可靠的、可重复的，并且患者感到舒适。
2010 年至 2013 年，对使用 Fitbone®钉进行肢体延长的患者进行了前瞻性单中心单操作医师（FA）研究。纳入标准为肢体长度差异等于或大于 25mm 或身材矮小。排除标准为美容原因和/或骺板未闭合的指征。术后和最后一次随访时评估延长参数。当延长目标相差不超过 5mm 时，认为延长成功。记录所有并发症。进行了统计分析。
23 例患者共植入 26 枚 Fitbone®钉，股骨 15 例，胫骨 11 例。患者的平均年龄为 22.5 岁（范围：15-53 岁），平均随访时间为 3.4 年（范围：2-5.3 年）。23 例（88%）获得了目标肢体延长，平均延长 45.3±18mm（范围：20-80mm）。愈合时间的平均为 277±167 天（范围：86-638 天）。股骨的平均愈合指数为 73±57 天/cm，胫骨为 83.5±65 天/cm。平均并发症发生率为 15.4%。
本研究强调了这种电动髓内延长系统的良好短期结果。需要进行更长期和更多患者的评估。
IV：非对照、前瞻性、连续研究。
