Ferreira Nando, Nieuwoudt Luan
Division of Orthopaedic Surgery, Department of Surgical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
Department of Orthopaedic Surgery, University of Kwa-Zulu Natal, Pietermaritzburg, South Africa.
Strategies Trauma Limb Reconstr. 2019 Sep-Dec;14(3):115-120. doi: 10.5005/jp-journals-10080-1437.
Distal interlocking of intramedullary nails can be challenging if not done regularly and can be associated with a prolonged operating time and excessive radiation exposure. Multiple techniques have been developed to overcome these problems but all still rely on conventional distal locking methods. Between December 2011 and March 2013, 18 patients with diaphyseal femur fractures were treated with the shape memory nail (Orthofix, Verona, Italy). These nails use self-contained nitinol memory metal 'wings' at the distal aspect of the nail to provide rotational and longitudinal stability. We observed fracture union in all 18 cases with no non-unions, rotational malalignments or peri-prosthetic infections. Median theatre time was 35 (18-71) minutes and median total radiation time was 50 (20-209) seconds. The shape memory nail (Orthofix, Verona, Italy) is an attractive alternative to conventional interlocking femoral nails. It provides sufficient stability to allow fracture union while decreasing theater time and limiting radiation exposure.
Ferreira N, Nieuwoudt L. Preliminary Results with the Shape Memory Nail: A Self-contained Distal Locking Mechanism for Diaphyseal Femur Fractures. Strategies Trauma Limb Reconstr 2019;14(3):115-120.
如果不经常进行，髓内钉的远端锁定可能具有挑战性，并且可能与手术时间延长和辐射暴露过多有关。已经开发了多种技术来克服这些问题，但所有技术仍然依赖于传统的远端锁定方法。在2011年12月至2013年3月期间，18例股骨干骨折患者接受了形状记忆钉（意大利维罗纳的奥托菲克斯公司生产）治疗。这些钉子在钉的远端使用自含式镍钛诺记忆金属“翼”来提供旋转和纵向稳定性。我们观察到所有18例患者骨折均愈合，无骨不连、旋转畸形或假体周围感染。中位手术时间为35（18 - 71）分钟，中位总辐射时间为50（20 - 209）秒。形状记忆钉（意大利维罗纳的奥托菲克斯公司生产）是传统交锁髓内钉的一种有吸引力的替代方案。它提供了足够的稳定性以实现骨折愈合，同时减少手术时间并限制辐射暴露。
费雷拉N，纽沃特L。形状记忆钉的初步结果：股骨干骨折的一种自含式远端锁定机制。《创伤肢体重建策略》2019；14（3）：115 - 120。
