give me all the points of erb palsy and kumpkes palsy from orthopedics but long sentences in short one

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brachial plexus palsy

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Erb palsy Klumpke palsy upper lower brachial plexus clinical features orthopedics

Erb's palsy vs Klumpke's palsy

PointErb-Duchenne palsyKlumpke palsy
TypeUpper brachial plexus palsyLower brachial plexus palsy
Roots involvedC5-C6 roots, sometimes C7C8-T1 roots
Part injuredUpper trunk of brachial plexusLower trunk of brachial plexus
Common mechanismExcessive separation of the head and shoulder, such as traction on the neck in shoulder dystociaSudden upward traction or hyperabduction of the arm, such as traction on an abducted arm during delivery or a fall while grasping something
Main muscles paralyzedDeltoid, supraspinatus, infraspinatus, biceps, brachialis, brachioradialis, and supinatorIntrinsic muscles of hand, long finger flexors and extensors, and wrist muscles may be affected
Main movements lostShoulder abduction, external rotation, elbow flexion, and forearm supination are weak or absentFine hand movements, finger flexion/extension, finger abduction/adduction, and grip are weak or absent
Characteristic deformityWaiter's tip positionClaw hand deformity
Position of armArm hangs by side, shoulder is adducted and internally rotated, elbow is extended, forearm is pronated, and wrist may be flexedForearm and hand weakness predominate, with hyperextension at metacarpophalangeal joints and flexion of interphalangeal joints, producing clawing
Nerves mainly affectedAxillary, suprascapular, musculocutaneous, and radial nerve branchesUlnar nerve and median nerve branches mainly affected
Sensory lossOver lateral shoulder and lateral arm/forearm, corresponding to C5-C6 dermatomesOver medial forearm and medial side of hand, especially little finger, corresponding to C8-T1 dermatomes
ReflexesBiceps and supinator reflexes are absent or reducedHand reflexes and grip are affected; biceps reflex is usually preserved
Associated signIf C4/phrenic nerve involvement occurs, diaphragmatic paralysis may occurHorner syndrome may occur if T1 sympathetic fibers are involved: ptosis, miosis, and reduced sweating on the same side
PrognosisMore common and generally better prognosisLess common and comparatively poorer prognosis because intrinsic hand recovery is difficult

One-line memory

  • Erb = C5-C6 = “waiter's tip” = shoulder and elbow problem.
  • Klumpke = C8-T1 = “claw hand” = hand and finger problem.
Modern classification calls these upper and lower neonatal brachial plexus palsies. StatPearls overview supports the C5-C6 versus C8-T1 pattern. Miller's Review of Orthopaedics describes Erb-Duchenne palsy as the commoner, better-prognosis type and Klumpke palsy as associated with Horner syndrome.

give me naaraks classification too

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Narakas classification obstetric brachial plexus palsy groups I II III IV

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neonatal brachial plexus palsy Narakas

Narakas classification of obstetric brachial plexus palsy

GroupRoots involvedTypeClinical features
Group IC5-C6Classical Erb palsyShoulder 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 IIC5-C6-C7Extended Erb palsyShoulder 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 IIIC5-T1Total brachial plexus palsyThe whole upper limb is flaccid, including shoulder, elbow, wrist, and hand, but there is no Horner syndrome.
Group IVC5-T1 + sympathetic fibers of T1Total palsy with Horner syndromeThere 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.

Easy mnemonic

1 = C5,6
2 = C5,6,7
3 = C5 to T1
4 = C5 to T1 + Horner
Short exam line: Narakas classification grades birth brachial plexus palsy from isolated upper-trunk involvement in Group I to total plexus palsy with Horner syndrome in Group IV. A review of the classification describes the same four groups: upper Erb's, extended Erb's, total palsy, and total palsy with Horner syndrome.
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