Lateral ankle sprain
Injury to the outer ankle ligaments from an inward-rolling mechanism, the most common acute ankle injury across sport and daily activity.
Ankle and foot conditions include acute ligament sprains, chronic instability following inadequate recovery, and a range of overuse conditions affecting the Achilles tendon and plantar fascia.
Sprains dominate acute presentations, particularly in sport, while overuse conditions become more prominent among runners and people with high levels of standing or walking activity.
Relative clinical burden
Lateral ankle sprain80
Chronic ankle instability40
Plantar fasciitis45
Achilles tendinopathy35
High ankle (syndesmotic) sprain15
Stress fracture (foot or ankle)10
Common conditions
Chronic ankle instability
Persistent giving-way sensations or repeat sprains following an inadequately rehabilitated initial injury, often related to residual balance and strength deficits.
Plantar fasciitis
Irritation of the plantar fascia producing heel pain that is often most severe with the first steps in the morning, common among runners and people who stand for long periods.
Achilles tendinopathy
Overuse-related irritation of the Achilles tendon, common among runners, producing pain and stiffness at the back of the heel that typically eases somewhat with warming up.
High ankle (syndesmotic) sprain
Injury to the ligaments connecting the two shin bones above the ankle joint, generally more severe and slower to recover than a typical lateral sprain.
Stress fracture (foot or ankle)
A small crack in a bone from repetitive loading, most common among runners who rapidly increase training volume, producing localized pain that worsens with continued impact activity.
While most ankle and foot conditions are self-limiting with appropriate rehabilitation, distinguishing between a simple sprain, chronic instability, and the various overuse conditions typically guides a meaningfully different treatment approach.
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