LE Mononeuropathy Flashcards
Injury to which nerve can result in trendelenburg gait
Superior gluteal nerve - weakness of hip abduction and ER
Largest and longest branch of femoral nerve
Saphenous nerve
2 divisions of sciatic nerve and which is medial and lateral
Tibial (medial) and peroneal (lateral) nerve
What gait abnormality can be seen with obturator neuropathy
Circumducting gait
Nerve root of superior and inferior gluteal nerves
Superior - L4, L5, S1
Inferior - L5, S1, S2
What muscle is commonly affected in deep peroneal neuropathy
EDB
In common peroneal neuropathy, what muscle innervated by peroneal nerve is spared?
Short head of biceps femoris
What 6 muscles is innervated by obturator nerve
Adductor longus, adductor magnus, adductor brevis, pectineus, obturator externus, gracilis
Relation of femoral n to femoral artery
Lateral
Branches of tibial nerve
Posterior tibial nerve –> medial plantar nerve, lateral planter nerve, calcaneal nerve
What are the major posterior nerves of the lumbosacral plexus
Femoral nerve and common peroneal nerve
What nerve is commonly affected in diabetic amyotrophy
Femoral nerve
Muscles innervated by superficial peroneal nerve
Peroneus longus and brevis
Nerve root of tibial nerve
L4,5,S1,2,3
What does superior and inferior gluteal nerve innervate
Superior - gluteus medius, gluteus minimus, TFL
Inferior - gluteus maximus
Muscles innervated by deep peroneal nerve
Extensor digitorum longus, extensor digitorum brevis, extensor hallicus longus, tibialis anterior, first dorsal interossei, peroneus tertius
Contents of tarsal tunnel
Tibialis posterior, flexor digitorum longus, posterior tibial artery, posterior tibial vein, posterior tibial nerve, flexor hallicus longus
Most common cause of femoral nerve neuropathy
Surgery
What muscles does the femoral nerve pass through
Psoas
Most common site of common peroneal nerve entrapment
Fibular head
Nerve root of femoral nerve
L2, 3, 4
What nerve is affected in anterior tarsal tunnel syndrome
Deep peroneal nerve
5 Muscles innervated by tibial nerve above soleus
Plantaris, medial gastroc, lateral gastroc, soleus, popliteus
Nerve roots for common peroneal nerve
L4,5,S1,2
Muscles innervated by lateral plantar nerve
Adductor hallicus, quadratus plantae, interossei, abductor digiti minimi
Site of nerve entrapment of saphenous nerve
Subsartorial (Hunter’s) canal.
Etiology of diabetic amyotrophy
Microvasculitis affecting the vaso-nevorum
What does piriformis syndrome affect
Peroneal portion of the sciatic nerve
Where does the accessory peroneal nerve branch stem from and what does it innervate
Stems from superficial peroneal nerve and innervate extensor digitorum brevis
Nerve root of lateral femoral cutaneous nerve
L2 and L3
Nerve root of sciatic nerve
L4,5,S1,2,3
Nerve root of obturator nerve
L2,3,4
Muscles innervated by medial plantar nerve
Abductor hallicus, flexor hallicus brevis, flexor digitorum brevis, lumbricals
What nerve is involved in meralgia paresthetica
Lateral femoral cutaneous
Sensory distribution of saphenous nerve
Medial leg, medial malleolus, medial arch
Where does sural nerve come from
Branches of tibial nerve and common peroneal nerve
What are the major anterior nerves of the lumbosacral plexus
Obturator and tibial nerve
Muscles innervated by sciatic nerve before it splits
Peroneal division - short head of biceps femoris
Tibial division - long head of biceps femoris, semimembranosus, semitendinosus, adductor magnus
Multifocal peripheral neuropathy with damage occurring in 2 or more different nerve areas
Mononeuritis multiplex
Sensory innervation of sural nerve
Lateral calf and foot
What structures does the sciatic nerve go through
Greater sciatic foramen
Muscles innervated by posterior tibial nerve
Tibialis posterior, flexor digitorum longus, flexor hallicus longus
What 7 muscles does femoral nerve innervate
Pectineus, sartorius, iliacus, vastus lateralis, vastus medialis, vastus intermedius, rectus femoris
Sx of Tarsal tunnel syndrome are reproduced by what motion
Ankle inversion
What sensory problem do people with deep peroneal neuropathy commonly have
1st web space
