Post-traumatic dynamic hallux varus instability

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Foot and Ankle Surgery

Background:

• Acquired hallux varus is an uncommon condition resulting from injury to the first metatarsophalangeal joint (MTPJ).
• Previous literature has documented only one prior case of traumatic hallux varus.

Purpose of the Study:

• To present a unique case of dynamic hallux varus following trauma to the first MTPJ.
• To describe a novel surgical technique for correcting this deformity.
• To evaluate the functional outcome and patient satisfaction after surgical intervention.

Main Methods:

• Case presentation of a patient with traumatic hallux varus.
• Diagnostic imaging including standing weight-bearing and fluoroscopic stress testing to identify dynamic instability.
• Surgical correction utilizing a soft tissue anchor for lateral capsular and collateral ligament repair.

Main Results:

• The patient presented with a dynamic hallux varus deformity, evident only during fluoroscopic stress testing.
• Successful joint stabilization was achieved using a soft tissue anchor for ligamentous repair.
• One-year follow-up revealed no limitations in activities of daily living and only mild pain during recreational activities.

Conclusions:

• Dynamic hallux varus is a rare but treatable condition.
• Soft tissue anchor repair offers a viable and effective surgical option for stabilizing the first MTPJ.
• This approach can lead to significant functional improvement and pain reduction in patients with traumatic hallux varus.