shosh: lower extremity
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- Most commonly at neck of femur
- Disruption of medial circumflex femoral a. may result in avascular necrosis of head of femur
- Thigh rotates laterally
Direction of thigh rotation in dislocation of head of femur
Compression of sciatic nerve
Weakness of posterior thigh, leg, and foot muscles
Attachment of ACL
- Anteromedial aspect of tibia to lateral aspect of femur
- Prevents hyperextension of knee
Injury to ACL, medial meniscus, and tibial collateral ligament
Ligament torn in inversion ankle sprain
Anterior talofibular part of lateral ligament
Innervation of posteromedial thigh, posterior leg, and plantar foot
Anterior fibers: obturator and tibial nerves
Innervation of anterior thigh, anterolateral leg, and dorsal foot
Posterior fibers: femoral and common fibular nerves
Psoas abscess compresses...?
Femoral nerve lesion presents with...
- Inability to flex thigh at hip and extend leg at knee
- Diminished patellar tendon reflex
Pelvic fraction lesions...?
Obturator nerve lesion
Inability to adduct hip
Anterior hip dislocation lesions...?
Posterior hip dislocation lesions...?
Superior or inferior gluteal nerves
Superior gluteal nerve
Superior gluteal nerve lesion
- Inability to abduct thigh at hip
- Px will have Trendelenburg ("waddling") gait, where pelvis sags on contralateral side
Inferior gluteal nerve lesion
- Loss of lateral rotation and extension of thigh at hip
- Inability to climp stairs or rise from seated position
- Pxs have "gluteus maximus gait," where torso leans back to compensate for loss of hip extension
Tibial nerve lesion in gluteal region
Loss of knee and plantar flexion
Tibial nerve lesion at ankle
- Occurs at tarsal tunnel, adjacent to medial malleolus
- Pain and paresthesia in sole of foot
Trauma to lateral aspect of leg
Common peroneal/fibular nerve injury
Fracture of kneck of fibula
Common peroneal nerve injury (most common LE injury)
Common peroneal nerve injury
Inability to stand in toes
- Tibial nerve injury
- (TIP--Tibial Inverts adn Plantarflexes)
- May result from knee trauma
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