Clinical results of Keller's arthroplasty

Prasad, M.G; Shankar, N.S.

doi:10.1016/s0958-2592(98)90034-7

Cited by 1 publication

(2 citation statements)

References 19 publications

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“…Reported rates of AVN for this procedure are between 0% and 20% with similar rates for Keller's arthroplasty of the first metatarsophalangeal joint. 41,42 AVN is also a rare complication of isolated cheilectomy for repair of hallux rigidus. 43 Diaphyseal osteotomies, such as the Scarf procedure, and base or proximal approaches, such as the Lapidus procedure (involving capsular release, cheilectomy, and fusion of the first tarsometatarsal joint), have lower rates of AVN.…”

Section: First Metatarsalmentioning

confidence: 99%

“…41 The contribution to blood supply of the various branches is debated; however, a pericapsular anastomosing plexus from these vessels has been described on the plantar and lateral aspect of the metatarsal neck, branches of which supply the metatarsal head. 3,41,42 The location of the osteotomy and extent of soft tissue resection may contribute to the development of AVN. 3 The plantar limb of the chevron osteotomy has been demonstrated to emerge through the pericapsular anastomosis if the lateral cortex is breached.…”

Section: First Metatarsalmentioning

confidence: 99%

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Imaging of Postoperative Avascular Necrosis of the Ankle and Foot

Buchan

Pearce

Lau

et al. 2012

Semin Musculoskelet Radiol

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Avascular necrosis (AVN) of the ankle and foot is an uncommon and often unexpected postoperative complication in patients with persistent pain and disability postprocedure. Artifacts from metallic implants may obscure characteristic imaging signs of AVN, and radiography and computer tomography are the mainstay imaging modalities of the postoperative ankle and foot. MRI and nuclear medicine imaging play an important complementary role in problem solving and excluding differential diagnostic considerations including infection, nonunion, occult fracture, and secondary osteoarthritis. This review article evaluates different imaging modalities and discusses characteristic sites of AVN of the ankle and foot in the postoperative setting including the distal tibia, talus, navicular, and first and lesser metatarsals. Radiologists play a key role in the initial diagnosis of postoperative AVN and the surveillance of temporal evolution and complications including articular collapse and fragmentation, thus influencing orthopedic management.

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Section: First Metatarsalmentioning

confidence: 99%