Return to Sport After Ankle Sprain
Athletes should return to sport based on objective functional criteria rather than time alone, though most will be cleared within 3-4 weeks for simple sprains, 6-8 weeks for partial/complete ligament ruptures, and 12-16 weeks post-surgically. 1
Timeline Based on Injury Severity
The return-to-sport timeline varies significantly by injury grade:
- Simple distortions (Grade 1): Full sports participation within 3-4 weeks with supervised exercise therapy 1
- Partial or complete ligament ruptures (Grade 2-3): Return within 6-8 weeks depending on physiotherapy results and sport demands 1
- Post-surgical cases: Return to physically demanding sports within 12-16 weeks, with non-weight-bearing cast for 2 weeks, then progressive weight-bearing weeks 3-6, and brace replacement after 6 weeks 1
- Overall success rate: 60-90% of athletes resume sports at pre-injury level by 12 weeks 2
Mandatory Functional Criteria for Clearance
Time alone is insufficient—clearance must be based on objective functional assessments across five domains (PAASS framework): 3
Pain Assessment
Ankle Impairments
- Full or near-full dorsiflexion range of motion restored (limited dorsiflexion is a major reinjury risk factor) 2
- Normal ankle strength, endurance, and power 3
Athlete Perception
Sensorimotor Control
- Normalized peroneal muscle response time (delayed response increases instability risk) 2
- Dynamic postural control and balance demonstrated on both stable and unstable surfaces 2
- Adequate proprioception 3
Sport/Functional Performance
- Ability to complete jumping and landing within 2 weeks (inability is an unfavorable prognostic factor for chronic instability) 2
- Successful completion of hopping, jumping, and agility tests 3
- Completion of sport-specific drills 3
- Ability to complete a full training session 3
Critical Rehabilitation Requirements
Supervised exercise therapy must begin immediately and continue for the full 4-6 week program—this is non-negotiable: 2, 1
Essential Components
- Proprioception training to address central nervous system disturbances 1
- Strength training targeting peroneal muscle response deficits and eversion weakness 1
- Coordination exercises to restore motor-unit function 1
- Sport-specific functional drills before full return 1
- Progressive weight-bearing as tolerated 1
Evidence for Supervised Therapy
- Supervised exercise therapy is superior to unsupervised training and accelerates return to sport 1
- Functional treatment reduces return-to-sport time by approximately 5 days compared to immobilization 1
- Exercise therapy reduces recurrence risk by 62% 1
Bracing Strategy During Return
Use semi-rigid or lace-up ankle braces rather than elastic bandages—this accelerates return by 4.2 days and reduces reinjury risk: 1
- Lace-up ankle braces are superior to elastic bandages or tape 2
- Continue bracing during the return-to-sport transition phase 2
- Prophylactic bracing during sports participation reduces recurrent injury risk by 47% 1
- Athletes with prior sprain history particularly benefit from continued support 2
Critical Pitfalls That Guarantee Poor Outcomes
Premature Return
- Discontinuing exercises once pain subsides dramatically increases reinjury risk—the full 4-6 week supervised program must be completed 2
- Premature return without adequate rehabilitation leads to 3-34% recurrence at 1-4 year follow-up and 33-55% ongoing instability 2
- Young males in high-level sports face particularly elevated risk 2
Excessive Immobilization
- Immobilization beyond 10 days significantly delays recovery and worsens functional outcomes 1
- Functional treatment shows 1.86 times better return-to-sport rates than immobilization 1
Incomplete Rehabilitation
- Up to 40% develop chronic ankle instability despite initial treatment, often due to incomplete rehabilitation 2
- Athletes with persistent deficits in dynamic postural control, altered hip kinematics, or mechanical instability at 8 weeks are at high risk for chronic problems 2
Ineffective Modalities
- Ultrasound, laser therapy, and electrotherapy have no proven benefit for acute ankle injuries and should not be used 1
Reassessment Timeline
- Clinical assessment is most accurate 4-5 days post-injury (84% sensitivity, 96% specificity for ligament rupture detection) 2
- Reassessment of ankle strength and stability at 4-6 weeks of therapy 2
- Athletes unable to complete jumping and landing within 2 weeks require closer monitoring for chronic instability risk 2