Subtalar Dislocation Treatment 2026 | Podiatrist

Type	Direction	Frequency	Typical Mechanism	Open Injury Rate
Medial subtalar dislocation	Foot medial/plantar	~85%	Inversion + adduction (“basketball foot”)	~10%
Lateral subtalar dislocation	Foot lateral	~15%	Eversion + abduction; high-energy	~40%
Anterior	Foot anterior	Rare (<2%)	Hyperplantar flexion	Variable
Posterior	Foot posterior	Rare (<1%)	Hyperdorsiflexion	Variable

Phase	Timeline	Activity	Goal
Immobilization	0–6 weeks	NWB cast; strict elevation	Swelling control; joint stability
Protected WB	6–12 weeks	Walking boot; progressive WB	Begin ROM; prevent stiffness
Rehabilitation	3–6 months	PT: proprioception, strength, gait	Functional recovery; orthotic fitting
Full activity	6–12 months	Custom orthotics; activity as tolerated	Return to pre-injury level (uncomplicated)
Arthritis monitoring	Ongoing	Annual clinical + imaging assessment	Detect subtalar arthritis early

What Is Subtalar Dislocation?

Subtalar dislocation (also called peritalar dislocation) involves simultaneous dislocation of the talonavicular and talocalcaneal joints — the entire foot and calcaneus dislocate from around the talus, which remains in the ankle mortise. It is a rare, high-energy injury accounting for 1–2% of all dislocations.

Medial vs. Lateral Dislocation

Medial subtalar dislocation (most common, ~80%): The foot displaces medially — “basketball foot” — from forced inversion. Skin stretches on the lateral side; the talar head tents the medial skin. Lateral dislocation: less common, higher energy, worse prognosis, more associated fractures.

Emergency Management

Immediate reduction under sedation or anesthesia is required to protect skin integrity and neurovascular structures. Closed reduction is attempted with knee flexion, ankle plantarflexion, and traction — successful in ~90% of medial dislocations. If closed reduction fails, open reduction in the operating room is necessary.

Associated Injuries

Osteochondral fractures (talar dome, navicular), fractures of the malleoli or process of the talus, and peroneal tendon subluxation are common associated injuries requiring CT evaluation after reduction.

Recovery

After successful reduction: short-leg cast or boot for 4–6 weeks, then progressive weight-bearing and physical therapy for range of motion and strength. Most patients have permanent limitation in subtalar motion and are at high risk for subtalar arthritis long-term.

FAQs

Is subtalar dislocation the same as ankle dislocation? No — in ankle dislocation, the talus dislocates from the tibia-fibula mortise. In subtalar dislocation, the talus stays in the mortise but the rest of the foot dislocates from beneath it.

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