Transverse instability required sectioning of both the interosseous first cuneiform-second metatarsal ligament and the plantar ligament between the first cuneiform and the second and third metatarsals. Longitudinal instability required sectioning of both the interosseous first cuneiform-second metatarsal ligament and the interosseous ligament between the first and second cuneiforms. Compared with weight-bearing radiographs, injury-specific manual stress radiographs showed qualitatively greater displacement when used to evaluate both patterns of instability.
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Kaar et al. (2007) studied this question.
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