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Immediate Unrestricted Weightbearing With Simple Stirrup Brace Following Single Anchor Lateral Ankle Ligament
Gregory A Lundeen1,2,3, Christopher Diefenbach4, Laura Hemker Moles5
1Reno Orthopaedic Clinic, Reno, Nevada.
Objective:
To report on a series of patients treated with immediate unrestricted weightbearing with limited protection following single anchor lateral ligament stabilization.
Methods:
Patients with chronic lateral ankle ligament instability who underwent modified Broström-Gould lateral ligament reconstruction with a single double-loaded anchor were identified. Immediate unrestricted full weightbearing in a stirrup brace was allowed the first postoperative day and accelerated physical therapy was initiated from 2 weeks. Subsequent assessment was performed at a minimum of 1-year follow-up.
Results:
Thirteen patients with a mean age at final follow-up of 49 years (range 21-70 years). Average follow-up was 21 months (16 to 26). American Orthopaedic Foot and Ankle Society (AOFAS) hindfoot score and visual analogue scale (VAS) score improved significantly (P < .05) from preoperative to postoperative, respectively (57 to 91, 5.7 to 1.5). Average postoperative Foot and Ankle Outcome Score (FAOS) was 82 (range 52-100). Short Form-12 (SF-12) scores averaged 55 and 49 on mental component and physical components, respectively, consistent with US age-matched averages. No measurable differences in range of motion, ligamentous stability, or Star Excursion Balance Test in the anterior, posterolateral, or posteromedial planes compared to the contralateral side (P > .05) were observed. No recurrence was reported.
Conclusion:
Immediate unrestricted weightbearing in a stirrup brace following single anchor lateral ligament reconstruction is a successful protocol for the treatment of chronic lateral ankle instability.
Levels Of Evidence:
Therapeutic, Level IV: Case series.
