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Effect of metatarsal osteotomy and open lateral soft tissue procedure on sesamoid position: radiological assessment
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Effect of metatarsal osteotomy and open lateral soft tissue procedure on sesamoid position: radiological assessment
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Journal Article
Effect of metatarsal osteotomy and open lateral soft tissue procedure on sesamoid position: radiological assessment
2018
Overview
Background
Incomplete sesamoid reduction is a potential risk factor for the recurrence of hallux valgus. The purpose of this study was to radiologically investigate changes in sesamoid position after chevron osteotomy and the open lateral soft tissue procedure.
Methods
Sixty-eight feet that underwent operative correction for hallux valgus deformity were reviewed consecutively. The hallux valgus angle (HVA), first to second intermetatarsal angle (IMA), tibial sesamoid position (TSP), distance of the fibular sesamoid (DFS), and translation of the metatarsal head (TMH) were evaluated preoperatively and at final follow-up.
Results
While most parameters were significantly decreased after surgery, no significant change in DFS (correction − 1.45 mm,
p
= 0.08) was noted. The difference between preoperative and postoperative TSP values (ΔTSP) has a moderately positive correlation with difference in TMH values (ΔTMH) (Rho 0.475,
p
= .000). Other parameters were similarly correlated.
Conclusions
First, metatarsal bone realignment reduced the sesamoid, but its position, relative to the second metatarsal axis (DFS), was unchanged. The sesamoid is reduced by the lateral translation of the first metatarsal but not by medial sesamoid migration.
Publisher
BioMed Central,BioMed Central Ltd,BMC
