Percutaneous minimally invasive Akin osteotomy in hallux valgus interphalangeus: a case series

Purpose Phalangeal Akin osteotomy of the greater toe is a frequently used surgical procedure for correcting hallux valgus interphalangeus deformity. However, previous research did not investigate percutaneous techniques of the Akin osteotomy. It was the aim of this study to investigate feasibility, corrective potential, and safety of a percutaneous minimally invasive Akin osteotomy. Methods We present a series of 81 feet, in which a percutaneous Akin technique was performed using a high-speed burr but no fixation device. The most important outcome parameters were determined as the proximal to distal phalangeal articular angle (PDPAA) (corrective effect of the osteotomy), the osteotomy healing (full, partly, no visibility of the osteotomy gap), and the integrity of the lateral cortical hinge. Results With regard to the main hypothesis we found significant changes in the PDPAA over the whole period of time ( p