Digital planning for foot and ankle deformity correction: Evans osteotomy.

Area of Science:

• Orthopedic Surgery
• Foot and Ankle Surgery
• Surgical Planning

Background:

• Preoperative planning is crucial for many foot and ankle procedures.
• The Evans calcaneal osteotomy is a common procedure for foot and ankle deformities.

Purpose of the Study:

• To prospectively evaluate the accuracy of preoperative digital planning in predicting the required calcaneal graft size for the Evans calcaneal osteotomy.

Main Methods:

• Digital deformity correction planning using TraumaCad® software was performed on 10 feet.
• Predicted graft sizes were compared to actual graft sizes used during surgery.
• Pre- and postoperative radiographic angles were measured and compared.

Main Results:

• Preoperative digital planning predicted graft sizes within 0.4 ± 1.8 mm of the actual graft size (p = .51).
• Significant improvements were observed in multiple radiographic angles post-surgery (p < .001 to p = .0122).
• Digital planning proved to be a valuable tool for predicting surgical graft size.

Conclusions:

• Preoperative digital planning is accurate for predicting calcaneal graft size in Evans osteotomies.
• This technology aids in achieving accurate pedal realignment and improving surgical outcomes.