Risk of Damaging Anatomical Structures During Minimally Invasive Hallux Valgus Correction (Bösch Technique): An Anatomical Study

Abstract

Background:

Percutaneous, transverse distal metatarsal osteotomy with K-wire fixation (the Bösch technique) is an established technique for hallux valgus correction. Nevertheless, the risk of damaging the anatomical structures during the operation is unknown.

Methods:

Forty fresh-frozen anatomical foot specimens with hallux valgus deformity underwent a percutaneous corrective procedure. Specimens of group A (n = 20) were operated by an experienced surgeon while specimens of group B (n = 20) were done by untrained residents.

Results:

The dorsal cutaneous nerve was injured in 1 of 20 cases in group A and 6 of 20 cases in group B (P = .037). There was a significant difference in overall complication rate between specimens of group A and group B (P = .043).

Conclusions:

The results show an increased risk of perioperative injury of the dorsal cutaneous branch of the deep peroneal nerve as well as a significant effect of the surgeon’s experience on the overall complication rate.

Clinical Relevance:

Results of this study are highly relevant for all surgeons who perform percutaneous, minimally invasive hallux valgus surgery to avoid damage to the peripheral nerves. In addition, the data suggest an intensive training for surgeons before minimally invasive hallux valgus surgery is performed without supervision.

Keywords

hallux valgus minimally invasive percutaneous hallux valgus Bösch technique hallux valgus surgery anatomical structures

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