Second Metatarsal Transfer Lesions Due to First Metatarsal Shortening After Distal Chevron Metatarsal Osteotomy for XXXX .

@entity1 @entity75 @entity7529 @entity4553 @entity15261
BACKGROUND: The first metatarsal bone can shorten after a distal chevron metatarsal osteotomy (DCMO). This shortening can result in a postoperative second metatarsal transfer @entity75 . The aim of the present study was to investigate the occurrence of second metatarsal transfer lesions after DCMO. METHODS: This study involved 185 feet (138 @entity1 ), with @entity4553 , treated with DCMO with Akin osteotomy. The mean @entity1 age was 51.7 years (range, 21 to 74). @entity1 were followed for an average of 28 months, between June 2004 and June 2010. We measured the length of first metatarsal relative to second metatarsal preoperatively and postoperatively, using Morton's and Hardy-Clapham's methods. A second metatarsal transfer @entity75 was defined as a newly developed @entity75 , including @entity7529 , a painful @entity15261 , or a @entity15261 , which was not present prior to the DCMO. The relation of the shortened first metatarsal after DCMO with the occurrence of second metatarsal transfer @entity75 was evaluated. RESULTS: Second metatarsal transfer lesions ( @entity15261 ) developed in 5 feet (2.7%) of 185 feet. Twenty-four preoperative second metatarsal lesions were improved postoperatively. The median shortening of the first metatarsal bone after DCMO was 0.6 mm according to Morton's method (range, -6.4 to 6.4), and 1.9 according to Hardy-Clapham's method (range, -5.8 to 5.8). According to the extent of first metatarsal shortening after DCMO by Hardy-Clapham's method and Morton's method, there was no significant difference of the occurrence of second transfer metatarsal lesions (P = .259 and P = .176, respectively). CONCLUSIONS: In our study, second metatarsal transfer lesions developed in 2.7% of feet after DCMO. The occurrence of second metatarsal transfer lesions did not appear to be correlated with the degree of first metatarsal shortening in cases with less than 5.8 mm shortening. LEVEL OF EVIDENCE: Level IV, retrospective case series.
