Ankle Joint

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Anatomy

Articulating Surfaces

Trochlea of Talus
Malleolar Mortis formed by Tibia & Fibula
Lateral & Medial Malleolus

Ligaments & Joint Capsule

Lateral Ligaments of Ankle

Reinforce Joint Laterally through three ligaments. These three ligaments provide stability by attaching the lateral malleolus to the bones below the ankle joint. They are responsible for resistance against inversion and internal rotation stress.

Medial Ligaments of Ankle

Reinforce joint capsule medially. Stabilise’s the ankle joint during eversion of the foot and prevents subluxation of the ankle joint. Attaches proximally to the Medial Malleolus and fans out to attach distally to the Talus, Calcaneus and Navicular via four adjacent and continuous parts.

Function

Motions Available

Talocrural Joint is a uniaxial hinge joint which has just 1° of Motion

Dorsiflexion 0° - 20° 

Plantarflexion 0° - 50°

Closed Packed Position

Maximum Dorsiflexion

Open Packed Position

10 ° Plantarflexion

Pathology/Injury

Ankle Arthrodesis

Ankle Impingement

Ankle Osteoarthritis

Ankle Osteochondral Lesions

Ankle Sprain

Ankle and Foot Fractures

Ankle and Foot Arthropathies

Procedures

Ankle Arthroplasty

Recent Related Research (from Pubmed)

Lower extremity function during gait in participants with first time acute lateral ankle sprain compared to controls.

Lower extremity coordination and symmetry patterns during a drop vertical jump task following acute ankle sprain.

Inter-joint coordination strategies during unilateral stance 6-months following first-time lateral ankle sprain.

Single-leg drop landing movement strategies 6 months following first-time acute lateral ankle sprain injury.

Lower Limb Landing Biomechanics in Subjects with Chronic Ankle Instability.

Effect of Tape on Dynamic Postural Stability in Subjects with Chronic Ankle Instability.

Immediate weight-bearing after ankle fracture fixation.

Assessment of standing balance in patients after ankle fractures.

Increased treatment durations lead to greater improvements in non-weight bearing dorsiflexion range of motion for asymptomatic individuals immediately following an anteroposterior grade IV mobilisation of the talus.

Patient-Based and Surgical Risk Factors for Thirty-Day Post-operative Complications and Mortality Following Ankle Fracture Fixation in Hospitalized Patients.

References

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