Metatarsophalangeal joint sprain
Background
- Acute or chronic hyperdorsiflexion of 1st MTP joint while foot remains in plantarflexion
Evaluation
- Passive ranging results in pathologically increased ROM
- Imaging may show capsular avulsion
Differential Diagnosis
Foot diagnoses
Acute
- Foot and toe fractures
- Subtalar dislocation
- Metatarsophalangeal joint sprain (turf toe)
- Acute arterial ischemia
- Calcaneal bursitis
Subacute/Chronic
- Diabetic foot infection
- Peripheral artery disease
- Plantar fasciitis
- Trench foot
- Ingrown toenail
- Paronychia
- Tinea pedis
- Morton's neuroma
- Diabetic neuropathy
Evaluation
- Clinical diagnosis
Management
- Rest, ice, elevation