Lower limb anatomy Flashcards
Femoral nerve - motor
Knee extension, hip flexion
Femoral nerve - sensory
Anterior and medial aspect thigh and lower leg
Femoral nerve - mechanism of injury
Hip and pelvic fractures
Stab/gunshot wounds
Obturator nerve - motor
Thigh adduction
Obturator nerve - sensory
Medial thigh
Obturator nerve - mechanism of injury
Anterior hip dislocation
Lateral cutaneous nerve - motor
none
Lateral cutaneous nerve - sensory
Lateral and posterior surfaces thigh
Lateral cutaneous nerve - mechanism of injury
Compression near ASIS –> neuralgia paraesthetica
Tibial nerve - motor
Foot plantarflexion and inversion
Tibial nerve - sensory
Sole of foot
Tibial nerve - mechanism of injury
Uncommon as deep and well protected
Popliteal lacerations, posterior knee dislocation
Common peroneal nerve - motor
Foot dorsiflexion and eversion
Extensor hallucis longus
Common peroneal nerve - sensory
Dorsum of foot and lower lateral part of leg
Common peroneal nerve - mechanism of injury
CAUSES FOOTDROP
Injury at neck of fibula
Superior gluteal nerve - motor
Hip abduction
Superior gluteal nerve - sensory
None
Superior gluteal nerve - mechanism of injury
Misplaced IM injection
Hip surgery
Pelvic fracture
Posterior hip dislocation
POSITIVE TRENDELENBURG SIGN
Inferior gluteal nerve - motor
Hip extension and lateral rotation
Inferior gluteal nerve - sensory
None
Interior gluteal nerve - mechanism of injury
In association with sciatic nerve
Causes difficulty in rising from seated position
Femoral nerve - nerve roots
L2-4
Obturator nerve - nerve roots
L2-4
Sciatic nerve - nerve roots
L4-S3
Tibial nerve nerve roots
L4-S3
Common peroneal nerve roots
L4-S2
Superficial peroneal nerve roots
L4-S1
Deep peroneal nerve roots
L4-S1