Lapidus

Lapidus:
Fusion of first metatarsal-cuneiform joint if first ray is unstable of hypermobile (decrease stiffness)
Used for high intermetatarsal angle (<15°) and/or pain/osteoarthritis at first metatarsal-cuneiform joint. Shortens first metatarsal unless used with bone graft Fixation and immobilisation for 10-12 weeks 5 cm incision over tarsometatarsal joint medial to EHL- careful of medial dorsocutaneous nerve Expose joint resect K-wire fixation

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