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ATC 328 Lower Body Evaluation. The Ankle and Leg Chapter 5. Bony Anatomy. Tibia Periosteum Interosseous membrane Fibula Weight bearing??? Distal 1/3 thinner. Bony Anatomy. Talus Anterior 1/3 wider Steda’s process Calcaneus Calcaneal tubercle. Ligamentous Anatomy.
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ATC 328 Lower Body Evaluation The Ankle and Leg Chapter 5
Bony Anatomy • Tibia • Periosteum • Interosseous membrane • Fibula • Weight bearing??? • Distal 1/3 thinner
Bony Anatomy • Talus • Anterior 1/3 wider • Steda’s process • Calcaneus • Calcaneal tubercle
Ligamentous Anatomy • Anterior Talofibular Ligament (ATF) • Posterior Talofibular Ligament (PTF) • Calcaneofibular Ligament (CF) • Deltoid Ligament • Anterior Inferior Tibiofibular Ligament (AITF) • Interosseous membrane
Articulations • Closed-packed position • Open-packed position • Syndesmosis
Articulations Talocrual joint = (mortise and tenon) 1 degree of freedom of movement Dorsiflexion/plantarflexion Subtalar joint 1 degree of freedom of movement Inversion/eversion Distal tibiofibular Proximal tibiofibular
Motions • Functional motion = multiplanar • Supination = PF, INV, ADD • Pronation = DF, EVER, ABD
Muscular Anatomy • Triceps Surae • Gastrocnemius and soleus • Plantaris • Peroneal group • Posterior tibialis • Anterior tibialis • EHL, EDL • FDL, FHL
Leg Compartments • Anterior • TA, EDL, EHL, PT, deep peroneal nerve • Lateral • PL, PB, superficial peroneal nerve • Superficial posterior • Triceps surae, plantaris, tibial nerve • Deep posterior • Tibialis posterior, FDL, FHL
Bursae • Superficial calcaneal bursa • Deep retrocalcaneal bursa
Range of Motion • 10 degrees DF for normal walk, 15 run • PF/DF = 20 degrees and 50 degrees • Inv/Ever = 20 degrees and 5 degrees
Lateral Ankle Sprain • Etiology • Tension laterally, compression medially • S/S • Testing • Anterior drawer • Talar tilt • Complications
Syndesmosis Sprains • Etiology • S/S • Testing • Kleiger’s test • Passive DF • Tibiofibular compression test • Maisonneuve fracture = proximal 1/3 of tibia
Medial Ankle Sprain • Etiology • S/S • Testing • Talar tilt • External rotation • Complications
Stress Fractures Signs and Symptoms Common sites Predisposing factors
Os Trigonum Injury • Steida’s process – develops at age 8-13 • Fracture of Steida’s process • Acute, stress, or developmental non-union • Common with dancers, kickers, repetitive PF
Os Trigonum Injury • S/S • Pain in posterior calcaneus • Swelling • Pain with PF
Achilles Tendonitis • Limited blood supply to tendon • Common causes • Typical signs and symptoms
Achilles Tendon Rupture • Males 30+ • Common etiology • PF MMT greater than 0/5 • Positive Thompson test
Subluxating Peroneal Tendons • Causes • DF and Ever • PF and Inv • Biomechanical and structural abnormalities • Rupture of retinaculum • S/S • Audible and visible subluxation
Anterior Compartment Syndrome • Traumatic or exertional • S/S • Pain • Paresthesia • Weakness • Decreased pulse/cap. Refill
Deep Vein Thrombophlebitis • Common in post-surgery • S/S • Leg pain • Vascular changes • Positive Homan’s sign
Acute Ankle Dislocations • OUCH!!!
Acute Leg Fractures • Common sites
Sever’s Syndrome • Etiology • S/S