APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -In addition to the metabolic disorders listed above, the differential diagnosis of spontaneous foot drop includes spasticity, dystonia, motor neuron disease, L5 radiculopathy, lumbosacral plexopathy, sciatic nerve palsy, compressive peroneal neuropathy, peripheral neuropathy, and some myopathies.

Detailed explanation-2: -The most common cause of foot drop is peroneal nerve injury. The peroneal nerve is a branch of the sciatic nerve. It supplies movement and sensation to the lower leg, foot, and toes. Conditions that affect the nerves and muscles in the body can lead to foot drop.

Detailed explanation-3: -Because the primary function of the tibialis anterior is dorsiflexion, paralysis of this muscle results in “foot drop, ‘’ or an inability to dorsiflex, this paralysis can be caused by nerve injury, like direct damage to the deep peroneal nerve, or a muscle disorder, like ALS.

Detailed explanation-4: -The most common cause of foot drop is compression of a nerve in the leg that controls the muscles involved in lifting the foot. This nerve is called the peroneal nerve. A serious knee injury can lead to the nerve being compressed. It can also be injured during hip or knee replacement surgery, which may cause foot drop.