give me all the points of erb palsy and kumpkes palsy from orthopedics but long sentences in short one
brachial plexus palsy
Erb palsy Klumpke palsy upper lower brachial plexus clinical features orthopedics
| Point | Erb-Duchenne palsy | Klumpke palsy |
|---|---|---|
| Type | Upper brachial plexus palsy | Lower brachial plexus palsy |
| Roots involved | C5-C6 roots, sometimes C7 | C8-T1 roots |
| Part injured | Upper trunk of brachial plexus | Lower trunk of brachial plexus |
| Common mechanism | Excessive separation of the head and shoulder, such as traction on the neck in shoulder dystocia | Sudden upward traction or hyperabduction of the arm, such as traction on an abducted arm during delivery or a fall while grasping something |
| Main muscles paralyzed | Deltoid, supraspinatus, infraspinatus, biceps, brachialis, brachioradialis, and supinator | Intrinsic muscles of hand, long finger flexors and extensors, and wrist muscles may be affected |
| Main movements lost | Shoulder abduction, external rotation, elbow flexion, and forearm supination are weak or absent | Fine hand movements, finger flexion/extension, finger abduction/adduction, and grip are weak or absent |
| Characteristic deformity | Waiter's tip position | Claw hand deformity |
| Position of arm | Arm hangs by side, shoulder is adducted and internally rotated, elbow is extended, forearm is pronated, and wrist may be flexed | Forearm and hand weakness predominate, with hyperextension at metacarpophalangeal joints and flexion of interphalangeal joints, producing clawing |
| Nerves mainly affected | Axillary, suprascapular, musculocutaneous, and radial nerve branches | Ulnar nerve and median nerve branches mainly affected |
| Sensory loss | Over lateral shoulder and lateral arm/forearm, corresponding to C5-C6 dermatomes | Over medial forearm and medial side of hand, especially little finger, corresponding to C8-T1 dermatomes |
| Reflexes | Biceps and supinator reflexes are absent or reduced | Hand reflexes and grip are affected; biceps reflex is usually preserved |
| Associated sign | If C4/phrenic nerve involvement occurs, diaphragmatic paralysis may occur | Horner syndrome may occur if T1 sympathetic fibers are involved: ptosis, miosis, and reduced sweating on the same side |
| Prognosis | More common and generally better prognosis | Less common and comparatively poorer prognosis because intrinsic hand recovery is difficult |
give me naaraks classification too
Narakas classification obstetric brachial plexus palsy groups I II III IV
neonatal brachial plexus palsy Narakas
| Group | Roots involved | Type | Clinical features |
|---|---|---|---|
| Group I | C5-C6 | Classical Erb palsy | Shoulder abduction and external rotation are weak, elbow flexion and supination are lost, while hand function is normal. The limb assumes the waiter's tip posture. |
| Group II | C5-C6-C7 | Extended Erb palsy | Shoulder and elbow deficits are present as in Group I, with additional weakness of elbow extension, wrist extension, and finger extension. Hand function is affected more than in Group I but is not completely absent. |
| Group III | C5-T1 | Total brachial plexus palsy | The whole upper limb is flaccid, including shoulder, elbow, wrist, and hand, but there is no Horner syndrome. |
| Group IV | C5-T1 + sympathetic fibers of T1 | Total palsy with Horner syndrome | There is complete flaccid paralysis of the upper limb with Horner syndrome on the same side, consisting of ptosis, miosis, and anhidrosis. This is the most severe group and suggests lower-root avulsion. |