Level IV, case series.

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Lesser metatarsophalangeal (MTP) joint instability is a common and painful condition that can severely limit activity and recreation. Synovitis and joint effusion may be seen early on with progression of instability to encompass predislocation and eventual complete dislocation of the MTP joint. Various surgical techniques have been described to treat lesser MTP joint instability and associated hammertoe deformities. Many surgeons experience frustration with the surgical outcome of metatarsal osteotomies and flexor transfers commonly used for this condition. The plantar plate apparatus is felt to be at the heart of the pathomechanics of this condition in many instances and is often misunderstood or even overlooked. Indirect dorsal approaches to plantar plate repair often require reliance on complex instrumentation and provide a limited view of the involved structures. The authors describe a direct plantar approach technique for plantar plate repair with realignment of the lesser MTP joint and hammertoe pathologies.

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