A Joy-Stick Assistant Three-Dimensional Modified Technique of Minimally Invasive Surgery for Mild or Moderate Hallux Valgus.

Publisher: Wiley on behalf of the Chinese Orthopedic Association Country of Publication: Australia NLM ID: 101501666 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1757-7861 (Electronic) Linking ISSN: 17577853 NLM ISO Abbreviation: Orthop Surg Subsets: MEDLINE

Publication: 2013- : Richmond, Vic. Wiley on behalf of the Chinese Orthopedic Association
Original Publication: Richmond, Vic. : Tianjin : Blackwell Pub. Asia ; Tianjin Hospital, 2009-

Hallux Valgus*/surgery ; Hallux Valgus*/diagnostic imaging ; Minimally Invasive Surgical Procedures*/methods ; Osteotomy*/methods; Humans ; Female ; Middle Aged ; Male ; Adult ; Aged ; Retrospective Studies

Background: Minimally invasive surgery (MIS) such as minimally invasive chevron osteotomy and Akin osteotomy (MICA) has become popular in the treatment of hallux valgus. However, how to correct three-dimensional deformities in hallux valgus effectively and simply in MICA is still difficult. Special equipment is required in MICA as has been reported before. It is meaningful and necessary to reduce the reliance on special equipment in MICA.
Methods: From January 2021 to July 2022, patients with mild or moderate hallux valgus were treated with a joy-stick assistant three-dimensional modified technique (Joy-stick 3D technique) of MIS. VAS, AOFAS Hallux MTP-IP scores, hallux valgus angle (HVA), intermetatarsal angle (IMA), and distal metatarsal articular angle (DMAA) were measured pre- and postoperatively at the last follow-up of at least 6 months. Scores and radiologic angles were compared using paired sample t-test.
Results: A total of 36 cases were included. HVA, IMA, and DMAA were (22.3 ± 6.1)°, (14.0 ± 3.2)°, and (8.9 ± 3.2)° preoperatively, and decreased to (7.0 ± 1.8)°, (3.7 ± 1.0)°, and (3.3 ± 1.1)° postoperatively. VAS decreased from 4.3 ± 1.7 to 0.7 ± 0.7. AOFAS Hallux MTP-IP scores improved from 68.6 ± 7.6 to 92.9 ± 6.1. Comparing mild and moderate cases, though HVA, IMA, and DMAA were significantly different preoperatively, the angles became statistically similar after surgery.
Conclusions: A joy-stick assistant three-dimensional modified technique is proposed to control the three-dimensional position of the metatarsal head and to reduce dependence on special tools. Mild and moderate hallux valgus deformities are effectively corrected using Joy-stick 3D technique.
(© 2024 The Authors. Orthopaedic Surgery published by Tianjin Hospital and John Wiley & Sons Australia, Ltd.)

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82172378 National Natural Science Foundation of China; 2022YFC2009501 National Science and Technology Major Project; 2022YFC2009503 National Science and Technology Major Project; 21511102200 Science and Technology Commission of Shanghai Municipality

Keywords: Forefoot Disorders; Hallux valgus; MICA; Minimally Invasive Surgery; Operative Technique

Date Created: 20240414 Date Completed: 20240602 Latest Revision: 20240604

20250114

PMC11144513

10.1111/os.14056

38616159