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17 Cards in this Set
- Front
- Back
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What is the primary stablizer of the first metatarsophalangeal (MTP) joint?
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Plantar plate
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What is the range of normal for DMAA (distal metatarsal articular angle)?
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<15 degrees
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What are the five components of the hallux valgus progression of events?
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Valgus >15 degrees
Abductor hallucis moves from medial to plantar Shifts adductor hallucis, flexor hallucis brevis, FHL laterally Sesamoids dislocate and fibular sesamoid falls into the first intermetatarsal space Deformity progresses |
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What are the intermetatarsal (IM) angle and the hallus valgus (HV) angle indications for soft tissue procedures alone?
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IM angle < 13 degrees
HV angle < 25 degrees |
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What are the indications for a biplantar chevron?
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DMAA > 15 degrees
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What si the IM angle and HV angle indications for a chevron osteotomy?
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IM < 13 degrees
HV < 30 degrees |
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How much angular correction can a chevron achieve for every 1 mm of translation?
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1 degree
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If a chevron osteotomy results in avascular necrosis, what is the salvage option?
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Fusion
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What are the IM angle and HV angle indications for MT shaft and proximal procedures?
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IM < 20 degrees
HV < 50 degrees |
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What are three examples of shaft and proximal osteotomies?
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Scarf
Ludloff Mau |
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In general, can greater correction be obtained with a shaft or with a proximal osteotomies?
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Generally greater correction with proximal than with shaft
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What are the IM angle and HV angle indications for a Lapidus procedure?
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IM < 20 degrees
HV < 50 degrees |
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Iin particular, the Lapidus is indicated for patients with what two characteristics?
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Hypermobile
Medially slanted surface at the metatarsocunediform joint |
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What are the IM angle and HV angle indications for resection arthroplasty?
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IM < 13 degrees
HV < 45 degrees |
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For what patient population would a resection arthroplasty be a consideration?
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Low demand elderly patients
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What is the most common complication of a metatarsal osteotomy?
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Maluion, which leads to transfer meratarsalgia
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Of all the hallux valgus procedures, which has the highest nonunion rate?
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Tarso-metatarsal fusion
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