LOWER LIMB ENTRAPMENT SYNDROMES

Question 1

FIBULAR (PERONEAL) NEUROPATHY

Answer 1

knee at the head of the fibula. - trauma or pressure

weakness or paralysis of foot and toe extension
impaired sensation - dorsum of the foot and the lower anterior aspect of the leg

Recovery occurs spontaneously with time and is usually complete

Question 2

Tarsal Tunnel Syndrome

Answer 2

posterior tibial nerve - compressed between the floor and the tarsal tunnel (ankle behind the medial malleolus)

burning in the foot, especially at night,
weakness of the intrinsic foot muscles.

surgical decompression may be necessary.

Question 3

FEMORAL NEUROPATHY

Answer 3

diabetes mellitus, vascular disease, bleeding diatheses (eg, hemophilia or treatment with anticoagulant drugs), or retroperitoneal neoplasms.

weakness - quadriceps
reduced or absent knee reflex,
may be - sensory disturbances 1. anterior medial thigh
2. medial lower leg.

Question 4

SAPHENOUS NEUROPATHY

Answer 4

pain or impaired sensation in the distribution of the nerve.

( cutaneous sensation - medial leg about and below the knee)

Question 5

LATERAL FEMORAL CUTANEOUS NEUROPATHY

Answer 5

known as meralgia paresthetica
compression by neighboring anatomic structures, - pregnancy or other exaggerated lumbar lordosis.

pain and paresthesias - lateral thigh,

self-limited, but in occasional cases it progresses to a patch of permanent, painless numbness.

Question 6

OBTURATOR NEUROPATHY

Answer 6

1. Trauma to the obturator nerv - pelvic fracture/ surgery/ obturator hernia/ osteitis pubis
2. pain radiating from the groin down the inner aspect of the thigh.
3. weakness - adductor thigh muscles