Musculoskeletal High Yield Systems

Front 1

A patient with a recent ant. hip dislocation has a sensory deficit of their medial thigh and is unable to adduct their leg. What nerve has been affected?

Back 1

Obturator nerve (L2-4). Note adductor weakness affects: obt externus, gracilis and adductor longus/brevis/magnus.

Front 2

A patient with a recent pelvic fracture is uanble to flex their thigh or extend their leg. A sensory deficit is noted along teh anterior thigh and medial leg. What nerve has been affected?

Back 2

Femoral (L2, L3, L4)

Front 3

A patient presents with an inability to dorsifelx their foot, inability to evert and inability to extend their toes. A sensory deficit is on the ant. lat. leg and dorsal foot. What nerve has been affected?

Back 3

The common peroneal (L4-S2). Note that the common peroneal and the tibial make up the sciatic.

Front 4

Following knee trauma your patient can't invert or plantarflex their foot. They also can't flex their toes or feel the sole of their foot. What nerve has been effected?

Back 4

Tibial (L4-S3)

Front 5

Your patient has had polio and has also recently suffered a posterior hip dislocation. They have a positive Trendelenburg sign (can't abduct thigh). What nerve is affected?

Back 5

Superior Gluteal

Front 6

Your patient presents with a posterior hip dislocation and is unable to jump, climb stairs or raise from their seat. What nerve has been affected?

Back 6

Inferior gluteal L5-S2

Hint 6

The muscle affected is the gluteus maximus.