Abstract
Objective The purpose of the present study is to compare the radiological results of angular
correction and its maintenance in the medium term between two minimally invasive techniques
for the treatment of hallux valgus (minimally invasive chevron surgery vs. Bosch technique).
Methods A comparative prospective analysis of patients undergoing surgery for symptomatic
hallux valgus deformity was performed. We compared two minimally invasive techniques
in homogeneous groups of population. Two groups of 62 and 63 feet respectively, were
constituted. We compared first ray angular corrections and consolidation as well as
the correction power of both osteotomies and their maintenance over time. The postoperative
complications and surgical time in both study groups were also evaluated. The minimum
follow-up was 2 years.
Results There were differences between both groups in the intermetatarsal angle at 24 months
postsurgery. There were no differences between both groups regarding metatarsophalangeal
angle, and distal metatarsal articular angle. There were no intraoperative complications
in either group. The surgical time between both groups had statistically significant
differences.
Conclusions Both screw-stabilized, Bosch surgery and minimally invasive chevron (hybrid when
associated with percutaneous Akin osteotomy) present adequate correction of moderate
hallux valgus. However, patients treated with Bosch percutaneous surgery had a greater
correction power of the intermetatarsal angle in the medium term, as well as a shorter
surgical time, when compared with those who were treated with chevron osteotomy. Both
techniques had a similar evolution over time regarding loss of correction and postoperative
complications.
Keywords
minimally invasive surgical procedures - hallux valgus - osteotomy - hallux valgus/diagnostic
imaging - hallux valgus/surgery
