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Percutaneous Bunionette Correction: Retrospective Case Series.

Gustavo Nunes1,2,3,4,5,6, Tiago Baumfeld1,2,3,4,5,6, Caio Nery1,2,3,4,5,6

  • 1Hospital Belo Horizonte, Belo Horizonte, Minas Gerais, Brazil (GN).

Foot & Ankle Specialist
|July 2, 2020
PubMed
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This study shows that a minimally invasive, hardware-free surgical technique for bunionette deformity significantly improves patient outcomes and reduces pain. The percutaneous osteotomy of the fifth metatarsal is a safe and effective treatment option.

Area of Science:

  • Orthopedic Surgery
  • Foot and Ankle Surgery
  • Minimally Invasive Procedures

Background:

  • Bunionette, a painful fifth metatarsal deformity, arises from anatomical and biomechanical changes.
  • Current treatments may involve hardware or more invasive approaches.

Purpose of the Study:

  • To evaluate a minimally invasive, hardware-free percutaneous surgical technique for treating bunionette.
  • To assess the clinical and radiographic outcomes of this novel approach.

Main Methods:

  • A case series of 18 patients (25 feet) undergoing percutaneous bunionette surgery.
  • Pre- and post-operative assessment using the American Orthopaedic Foot and Ankle Society (AOFAS) scale and Visual Analogue Pain Scale (VAS).
  • Radiographic evaluation of 4-5 intermetatarsal (IMA) and 5th metatarsophalangeal (MTTP) angles.
Keywords:
bunionetteforefoot surgerymetatarsal osteotomyminimally invasive surgerypercutaneous surgery

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Main Results:

  • Significant improvements observed in AOFAS scores (49.6 to 92.4) and VAS scores (7.7 to 1.2) (P < .001).
  • Radiographic correction of 5-MTTP (15° to 2.7°) and 4-5 IMA (9.1° to 3.3°).
  • Low complication rate (12% hypertrophic callus, 1 case of algodystrophy), with no infections or recurrences.

Conclusions:

  • Percutaneous osteotomy of the fifth metatarsal without hardware is a safe and reproducible technique.
  • This method yields good clinical and radiographic results for bunionette treatment.
  • High patient satisfaction rates indicate the efficacy of this minimally invasive procedure.