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Artrodesis Metatarso-Falángica del Hallux con Tornillo Endomedular

13 de febrero de 2015


Endomedullary Screw Fixation for First Metatarsophalangeal Arthrodesis

Atilio Migues, MD, Juan Calvi, MD, Pablo Sotelano, MD, Marina Carrasco, MD, Gastón Slullitel, MD, and Leonardo Conti, MD

Abstract
Background: The purpose of this study was to evaluate the clinical and radiological results in a group of patients who underwent first metatarsophalangeal joint arthrodesis with an endomedullary screw fixation technique (MPA-E).

Methods: Between 2003 and 2009, 101 metatarsophalangeal arthrodesis were performed in 76 patients. There were 64 women and 12 men with an average age of 68 years. The indication for surgery was osteoarthritis with severe pain and functional limitation. Patients were evaluated radiologically and with the American Orthopaedic Foot & Ankle Society scoring system (AOFAS) at an average follow-up of 32 months (range, 24-92 months).

Results: The success rate was 93%, with an increase of the average preoperative AOFAS from 38.5 points to 85.5 points postoperatively (P < .0001). The consolidation rate after radiological evaluation was 90.1%; there were 5 cases (5.0%) with asymptomatic nonunion and 5 cases (5.0%) with poor results because of symptomatic nonunion. Screw removal was needed in 4 feet (4.0%), and 2 feet (2.0%) had acute postoperative superficial infection. No implant cutout was observed.

Conclusion: The MPA-E technique provided consistent and high functional outcomes. This valid and effective alternative should be considered as an option for hallux metatarsophalangeal arthrodesis.

Level of Evidence: Level IV.

Keywords: first metatarsophalangeal arthrodesis, fusion, hallux valgus, hallux rigidus

Read full text at: http://fai.sagepub.com/content/34/8/1152.long

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