Background

Proximal interphalangeal (PIP) joint fusion with Kirschner (K) -wire fixation remains a popular strategy for hammertoe correction. This study was performed to evaluate the effect of length of wire fixation on clinical outcomes.

Methods

A retrospective review of all hammertoe reconstructions by a single surgeon was performed. Wire length was chosen at the surgeon’s discretion. Outcomes were assessed with metatarsophalangeal (MTP) congruency, pin complications, and PIP union.

Results

157 toes underwent reconstruction. Seventy had wires that spanned the MTP and 87 that did not. Wire breaks were significantly more common with longer wire fixation (P = .024). MTP incongruency was significantly more common in the MTP group (P = .014).

Conclusion

Pin breakage was rare and only occurred in the MTP group. MTP incongruence was significantly more common in the MTP group but may not reflect surgical technique. PIP union was more common with longer wire fixation but is not clinically significant.

Level of Evidence

III

中文翻译：

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用不同长度的钢丝固定进行锤状趾矫正

背景

近端指间 (PIP) 关节融合与克氏针 (K) 线固定仍然是锤状趾矫正的流行策略。本研究旨在评估钢丝固定长度对临床结果的影响。

方法

由一名外科医生对所有槌状趾重建进行了回顾性审查。钢丝长度由外科医生自行决定。结果通过跖趾 (MTP) 一致性、针并发症和 PIP 结合进行评估。

结果

157 个脚趾进行了重建。70 条电线跨越了 MTP，87 条没有。钢丝断裂在钢丝固定较长的情况下更为常见 ( P  = .024)。MTP 不一致在 MTP 组中更为常见 ( P  = .014)。

结论

断针很少见，仅发生在 MTP 组。MTP 不一致在 MTP 组中更为常见，但可能无法反映手术技术。PIP 愈合在较长的钢丝固定中更常见，但没有临床意义。

证据等级

三