Biomechanical Analysis of Cuboid Osteotomy Lateral Column Lengthening for Stage II B Adult-Acquired Flatfoot Deformity: A Cadaveric Study

• Published in: BioMed research international Vol. 2017; no. 2017; pp. 1 - 10
• Main Authors: Yu, Guangrong, Xia, Jiang, Li, Chunguang, Ren, Haoyang, Zhou, Haichao, Yang, Yunfeng
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Publishing Corporation 01.01.2017; Hindawi; Hindawi Limited
• Subjects: Adult; Biomechanics; Cadaver; Female; Flatfoot - pathology; Flatfoot - surgery; Foot diseases; Fractures; Humans; Ligaments; Male; Middle Aged; Orthopedics; Osteotomy; Tarsal Bones - pathology; Tarsal Bones - surgery; Tendons; China
• ISSN: 2314-6133; 2314-6141
• DOI: 10.1155/2017/4383981

Purpose. To investigate the effect of cuboid osteotomy lateral column lengthening (LCL) for the correction of stage II B adult-acquired flatfoot deformity in cadaver. Methods. Six cadaver specimens were loaded to 350 N. Flatfoot models were established and each was evaluated radiographically and pedobarographically in the following conditions: (1) intact foot, (2) flatfoot, and (3) cuboid osteotomy LCL (2, 3, 4, and 5 mm). Results. Compared with the flatfoot model, the LCLs showed significant correction of talonavicular coverage on anteroposterior radiographs and talus-first metatarsal angle on both anteroposterior and lateral radiographs (p<.05). Compared with the intact foot, the above angles of the LCLs showed no significant difference except the 2 mm LCL. In terms of forefoot pressure, medial pressure of the 2 mm LCL (p=.044) and lateral pressure of the 3, 4, and 5 mm LCLs showed statistical differences (p<.05), but lateral pressure of the 3 mm LCL was not more than the intact foot as compared to the 4 and 5 mm LCLs, which was less than medial pressure. Conclusion. Cuboid osteotomy LCL procedure avoids damage to subtalar joint and has a good effect on correction of stage II B adult-acquired flatfoot deformity with a 3 mm lengthening in cadavers.