DR Medhat MRCP

• Treatment
1. Carpal injection (local steroids).
2. Wrist splints at night.
3. Surgical decompression (flexor retinaculum division).
Anterior Interosseous Nerve:
- is the largest branch of the median nerve arising distal to the lateral epicondyl.
- It is a favorite nerve in MRCP-I.
- It accounts for < 1% of all compression palsies in the upper limb.
هام جدا : forearm - It supplies deep group of muscles of the
1. Flexor pollicis longus.
2. Felxer digtorium profundus to the index and sometimes middle finger.
3. Pronator quadrates
- The typical symptoms of lesion (anterior interosseous syndrome):
Inability to oppose the thumb and index finger
Inability to flex the thumb IP joint.
Inability to flex the distal IP joint of the index
Pronator quadrates paralyzed
- Causes: traumatic and non traumatic etiology.
Radial nerve
o Origin : from the posterior cord of brachial plexus (C5,6,7,8).
o Branches :
Loss of pincer movement
Motor to : 1. Extensor muscles (forearm, wrist, fingers, thumb).
‣ Extensor carbi radialis (longus & brivis)
‣ Extensor digitorum
‣ Extensor Digiti minimi.
‣ Extensor carbi ulnaris.
‣ Extensor policis (longus & brivis).
‣ Abductor policis longus.
2. Brachioradialis (the main elbow flexor)
3. Supinator muscle, anconius muscle.
4. Triceps muscle in the arm (main elbow extensor).
124