Indications & Contraindication |
1. Third generation MIS technique is an effective modality for surgical correction of patients with mild to moderate hallux valgus. |
2. For patients with severe hallux valgus, the surgical planning and strategy should be assessed on a case-by-case basis considering the patient's individual pathology and the expertise of the surgeon. |
Pre-Operative |
1. Radiation protection precautions for both patients and surgeons are necessary, despite the relative low dose of radiation. |
2. It is preferable and advisable to use a specialized power system that meets the requirements of low speed and high torque power setting. |
3. Selection of an appropriate type and size of Shannon burr is crucial for achieving optimal outcomes during osteotomy procedures. |
Intra-Operative |
1. Third generation MIS adopts an extracapsular osteotomy site proximal to the neck of the first metatarsal. |
2. The direction and angle of the osteotomy should be carefully planned and executed to achieve the desired correction while minimizing the complications. |
3. Specialized reduction tools are recommended for effective reduction. |
4. It is important to note that there is a learning curve in achieving reliable osteotomy, reduction and internal fixation. |
5. The severity of hallux valgus is closely related to the degree of lateral translation required for metatarsal head realignment. |
6. Guide pins for fixation screws should be inserted before osteotomy. |
7. The “in–out-in” technique is critical when inserting screws to achieve sufficient stability. |
8. Fully threaded cannulated screws are advocated to enhance stability. |
9. It is still controversial whether lateral soft tissue release is necessary in MIS for hallux valgus. |
Post-Operative |
1. Standard dressing technique or a special brace to maintain the hallux in a neutral position is recommended post-operatively for 4–6 weeks. |
2. It is crucial to implement standardized functional rehabilitation program to maintain the surgical outcome and prevent complications such as joint stiffness. |
3. It is important to note the risks of post-operative complications in MIS for hallux valgus despite its advocated advantages of a less invasive approach than the traditional open osteotomy surgery. |