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. 2023 Nov;143(11):6521-6526.
doi: 10.1007/s00402-023-04948-1. Epub 2023 Jun 26.

Treatment of hallux rigidus with percutaneous metatarsophalangeal arthrodesis: a case series with a minimum follow-up of 2 years

Gabriel Ferraz Ferreira  1   2   3 , João Paulo Pedroso  1 , Gustavo Araujo Nunes  2 , Jorge Javier Del Vecchio  4 , Thomas Lorchan Lewis  5 , Mauro Cesar Mattos E Dinato  6   3 , Vitor Baltazar Nogueira  7 , Miguel Viana Pereira Filho  8   9
Affiliations

Treatment of hallux rigidus with percutaneous metatarsophalangeal arthrodesis: a case series with a minimum follow-up of 2 years

Gabriel Ferraz Ferreira et al. Arch Orthop Trauma Surg. 2023 Nov.

Abstract

Background: Percutaneous metatarsophalangeal arthrodesis is an option for the treatment of hallux rigidus in more advanced cases. The aim of this study was to investigate the clinical and radiographic results at least 2 years after percutaneous metatarsophalangeal arthrodesis in patients with hallux rigidus.

Methods: This is a case series of consecutive patients undergoing percutaneous metatarsophalangeal arthrodesis in patients with hallux rigidus grades III and IV with a minimum of 24 months of clinical and radiographic follow-up. The primary outcome was clinical assessment using the Visual Analog Scale for Pain (VAS). Secondary outcomes included American Orthopedic Foot & Ankle Society (AOFAS) score, patient satisfaction, complications, and bone healing (radiographic analysis).

Results: Between August 2017 and February 2020, 29 feet (24 patients) underwent percutaneous metatarsophalangeal arthrodesis. The mean follow-up was 38.4 (range 24-54) months. There was an improvement in the pain (VAS) from 7.8 to 0.6 (p < 0.001) and in the AOFAS score from 49.9 to 83.6 (p < 0.001). There was a rate of bone union of 82.8% and screw removal of 13.8%. All patients considered the result to be excellent or good.

Conclusion: The treatment of grade III and IV hallux rigidus with percutaneous metatarsophalangeal arthrodesis demonstrated high patient satisfaction and significantly improves in clinical outcomes but the nonunion rate was higher than reported outcomes for open 1st metatarsophalangeal joint arthrodesis.

Level of evidence: IV, case series.

Keywords: AOFAS; Forefoot surgery; Hallux rigid; Minimally invasive surgery; Percutaneous surgery.

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