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Updated: Nov 6, 2025
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An Anatomical Study of Nerves at Risk During Minimally Invasive Hallux Valgus Surgery
Published on: February 17, 2018
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[Minimally Invasive Hallux Valgus Surgery: First Experience]
R Hromádka1, J Klouda2, S Popelka1
1Ortopedická klinika 1. lékařské fakulty Univerzity Karlovy a Fakultní nemocnice v Motole, Praha.
Summary
The Minimally Invasive Chevron Akin (MICA) technique effectively corrects hallux valgus using percutaneous osteotomies. This minimally invasive approach significantly improves hallux valgus and intermetatarsal angles, restoring joint congruency.
Area of Science:
- Orthopaedic Surgery
- Foot and Ankle Surgery
- Minimally Invasive Procedures
Background:
- Hallux valgus deformity correction requires techniques allowing precise orientation of the first metatarsal head.
- Conventional osteotomies have limitations in achieving multiplanar correction.
- Percutaneous techniques offer potential advantages in deformity correction.
Purpose of the Study:
- To evaluate the efficacy of the Minimally Invasive Chevron Akin (MICA) percutaneous technique for hallux valgus correction.
- To compare radiographic outcomes of MICA with conventional osteotomies.
- To assess the ability of MICA to restore first metatarsophalangeal joint congruency.
Main Methods:
- Retrospective study of 76 patients (93 operations) between 2015-2018.
- Analysis of weight-bearing X-rays (preoperative and postoperative).
- Measurement of hallux valgus angle, intermetatarsal angles, distal metatarsal articular angle, and sesamoid position.
Main Results:
- Mean hallux valgus angle improved from 33.2° to 10.2°.
- Mean first mechanical intermetatarsal angle decreased from 12.4° to 7.4°.
- First metatarsophalangeal joint congruency was restored in 91% of cases.
Conclusions:
- The Minimally Invasive Chevron Akin (MICA) technique is effective for correcting mild to moderate hallux valgus.
- MICA allows for multiplanar correction of the first metatarsal head.
- This percutaneous method demonstrates significant radiographic improvements and joint restoration.
