Chronic Ankle Instability Treatment Guidelines

Initial Assessment and Diagnosis

The British Journal of Sports Medicine recommends assessing pain level, physical workload, and sports participation as these factors may negatively influence recovery 1
Evaluate for limited dorsal flexion and reduced proprioception, which are risk factors for chronic ankle instability, as suggested by the British Journal of Sports Medicine 2
Consider using the anterior drawer test (84% sensitivity, 96% specificity) to assess ligament laxity, optimally performed 4-5 days post-injury, according to Praxis Medical Insights 3

The British Journal of Sports Medicine suggests that supervised exercise therapy combined with functional support is the most effective treatment for chronic ankle instability, focusing on proprioception, strength, coordination, and functional training 4
Use semirigid or lace-up ankle supports rather than elastic bandages or tape for better outcomes, as recommended by the American Academy of Family Physicians 5, 6
Apply functional support for 4-6 weeks during activities to provide stability while allowing movement, according to the British Journal of Sports Medicine 4, 7
Avoid prolonged immobilization (>10 days) as it leads to poorer outcomes compared to functional rehabilitation, as stated by the British Journal of Sports Medicine 4

Implement supervised exercise therapy focusing on proprioception and balance training (ankle disk/wobble board exercises), strengthening of ankle and hip muscles, coordination exercises, and functional training specific to patient's activities, as recommended by the British Journal of Sports Medicine 4, 5, 7, 8
Begin with active dorsiflexion and plantarflexion exercises (3 sets of 10 repetitions) and progress to resistance band exercises in all four directions (3 sets of 10 repetitions), according to Praxis Medical Insights 7
Include single-leg stance exercises on stable and unstable surfaces, as suggested by Praxis Medical Insights 7

Combine manual joint mobilization with exercise therapy for better outcomes than exercise therapy alone, as recommended by the British Journal of Sports Medicine 4
Manual mobilization can provide short-term increases in ankle dorsiflexion range of motion and decrease pain, according to the British Journal of Sports Medicine 4

Reserve surgical therapy for patients who have not responded to comprehensive exercise-based physiotherapy, as recommended by the British Journal of Sports Medicine 4, 3
Surgery may be superior for decreasing the prevalence of recurrent ankle sprains, according to the British Journal of Sports Medicine 4
Surgical treatment has shown better outcomes in terms of recovery of ankle activity and instability compared to functional treatment alone, as stated by the British Journal of Sports Medicine 4

Discontinuing exercises once pain subsides increases risk of recurrent injury; complete the full 4-6 week program, as recommended by Praxis Medical Insights 7
Relying solely on compression bandages without proper functional support is less effective, according to the American Academy of Family Physicians 6, 7
Returning to full activities too quickly before adequate rehabilitation can lead to recurrent injury, as warned by Praxis Medical Insights 3
Neglecting proprioceptive training increases risk of developing chronic ankle instability, according to Praxis Medical Insights 3

Patients with a history of remote medial and lateral ankle ligament sprains face a 5-40% risk of developing chronic ankle instability (CAI) characterized by recurrent sprains, persistent pain, functional instability, and potential progression to ankle osteoarthritis, according to the British Journal of Sports Medicine 9, 10
Up to 40% of individuals who sustain a lateral ankle sprain develop CAI, and after 1 year, 5-33% of patients continue experiencing pain and instability complaints, while 3-34% suffer recurrent sprains 10, 11
Clinical signs of anterior impingement develop in 25% of patients, with 82% showing radiographic confirmation, as reported by the British Journal of Sports Medicine 10
Recurrent ankle sprains increase the risk for subsequent development of osteoarthritis as a long-term sequela, as stated by the British Journal of Sports Medicine 9

The American College of Sports Medicine recommends supervised exercise therapy combined with functional support as the most effective treatment for chronic ankle instability, which should be attempted for all patients before considering surgery, according to the British Journal of Sports Medicine 9
Limited dorsal flexion and reduced proprioception are established risk factors for recurrent injury, as reported by the British Journal of Sports Medicine 11
Persistent deficiencies include altered hip joint kinematics, impaired dynamic postural control, and reduced ankle dorsiflexion range of motion, as stated by the British Journal of Sports Medicine 10
High-level sports participation is an unfavorable prognostic factor for residual complaints, and increased BMI, greater body height, and young male gender increase CAI risk, according to the British Journal of Sports Medicine 10, 11

Surgery is superior for decreasing recurrent ankle sprain prevalence, which is important given the osteoarthritis risk, as reported by the British Journal of Sports Medicine 9
However, 60-70% of individuals respond well to non-surgical programs, making universal surgical treatment unnecessary overtreatment, according to the British Journal of Sports Medicine 9
The American Orthopaedic Society for Sports Medicine recommends reserving surgical therapy exclusively for patients who have failed comprehensive exercise-based physiotherapy after adequate trial, as stated by the British Journal of Sports Medicine 9