Nerve Injury Flashcards
1
Q
Pain, numbness, paraesthesia to lateral thigh
A
Lateral cutaneous nerve of thigh
2
Q
Etiology of lateral cutenous nerve damage
A
- increased abdominal pressure antepartum
- prolonged hip flexion intrapartum
Area of compression: on exiting the pelvis under the inguinal ligament
3
Q
Meralgia paraesthetica - what is the cause?
A
Lateral cutaneous nerve of thigh compression
4
Q
Risk factors for lumbosacral compression
A
- CPD
- fetal malposition
- forceps delivery
5
Q
What is the outcome of lumbosacral compromise
A
-Foot drop due to common peroneal neuropathy
- paraesthesia lateral calf and foot
6
Q
-Weakness of knee extension
-Paraesthesia to anterior thigh, medial calf
(Knee giving away and difficulty climbing stairs)
A
Femoral nerve
7
Q
Mechanism of femoral nerve injury
A
Stretch and compression by inguinal ligament
8
Q
Weakness of hip adduction and loss of sensation over medial thigh
A
Obturator nerve (L2-4)
9
Q
Mechanism of obturator injury
A
- compression by fetal head
- stretch on nerve from lithotomy position
