Neuroanatomy
A 65-year-old woman undergoes primary total hip arthroplasty via a posterior approach. Postoperatively, she has weakness of knee extension, hip flexion, and numbness over the anterior thigh. The hip is stable with no evidence of haematoma on CT scan. The surgical team considers iatrogenic nerve injury. Regarding the lumbar plexus and femoral nerve anatomy:
Mark each as TRUE or FALSE
The lumbar plexus is formed within the psoas major muscle from the ventral rami of L1-L4 (with contr...
The femoral nerve innervates the quadriceps muscles (knee extension), iliopsoas (hip flexion), sarto...
The femoral nerve passes through the obturator foramen to enter the thigh; injury causes weakness of...
The obturator nerve (L2-L4) exits the pelvis through the obturator foramen and supplies hip adductor...
The lateral femoral cutaneous nerve (L2-L3) is a pure sensory nerve that passes under or through the...
Answer the questions to see explanations
Click T (True) or F (False) for each option