Klumpke Palsy: C8-T1 Lower Trunk Avulsion and Hand Rehab
In short
C8-T1 lower trunk brachial plexus avulsion causes severe intrinsic hand paralysis. Anti-claw orthoses and electrical stimulation preserve joint mobility.
In this guide (5 sections)
Klumpke palsy involves traumatic traction or avulsion of the lower trunk of the brachial plexus (C8 and T1 nerve roots). Occurring during hyperabduction injuries: such as catching an overhead branch during a fall, or breech delivery traction: this injury paralyzes all intrinsic muscles of the hand (interossei, lumbricals, thenar, and hypothenar muscles) alongside wrist and finger flexors. The resulting clinical picture is a severe total claw hand, often complicated by autonomic disruption and sensory loss along the medial forearm and hand.
Domestic and Cultural Indian Realities
In rural and suburban India, lower trunk injuries commonly happen when workers fall from mango or coconut trees and desperately grasp an overhead branch, or during industrial agricultural machinery accidents. Total loss of intrinsic hand function renders patients unable to grasp tools, hold eating utensils, or secure garments. Hand therapists work closely with family members to establish protective routines for insensitive skin, avoiding burns from hot cooking utensils or tea cups.
Surgical Pathoanatomy and Biomechanical Principles
Because T1 carries preganglionic sympathetic fibers destined for the superior cervical ganglion, lower trunk avulsions frequently produce Horner syndrome (unilateral ptosis, miosis, enophthalmos, and facial anhidrosis), serving as a pathognomonic marker of preganglionic root avulsion. In the hand, the loss of all intrinsic muscles allows the intact extrinsic extensor digitorum communis (EDC) to hyperextend all four MCP joints, locking the IP joints in rigid flexion contractures.
Postoperative Rehabilitation Phases and Splinting Protocols
Rehabilitation utilizes a custom thermoplastic full-hand anti-claw splint (knuckle bender or MCP flexion bar) holding the second through fifth MCP joints in 45 degrees of flexion. This orthosis prevents fixed hyperextension contractures and allows extrinsic extensors to extend the IP joints. Neuromuscular electrical stimulation (NMES) using interrupted galvanic current maintains denervated muscle bulk, accompanied by daily passive range of motion across all interphalangeal joints.
Passive Interphalangeal Extension with MCP Block
Objective: Prevent flexion contractures of the finger joints while awaiting surgical nerve reconstruction
- 1Rest your affected hand comfortably on a flat table with your wrist supported in neutral.
- 2Use your unaffected hand to hold all four large knuckles (MCP joints) bent forward in 60 degrees of flexion.
- 3While keeping the knuckles bent, gently straighten the middle and end joints of the fingers with your opposite palm.
- 4Hold the straight finger stretch for 5 seconds, feeling a gentle stretch along the palmar finger skin.
- 5Slowly relax the stretch and repeat smoothly across all four fingers together.
| Clinical Feature | Erb Palsy (Upper Trunk: C5-C6) | Klumpke Palsy (Lower Trunk: C8-T1) |
|---|---|---|
| Mechanism of Injury | Shoulder depression with lateral neck traction | Violent upward arm traction or hyperabduction |
| Primary Motor Deficit | Shoulder abduction, external rotation, elbow flexion | Total intrinsic hand paralysis, finger flexor weakness |
| Postural Deformity | Waiter tip: arm adducted, internally rotated, pronated | Total claw hand: severe MCP hyperextension and IP flexion |
| Associated Autonomic Sign | Rarely associated with sympathetic signs | Horner syndrome (ptosis, miosis, anhidrosis) if T1 avulsed |
Red Flags and Specialist Escalation
Development of painless trophic ulcers, burn blisters on anesthetic fingertips, or severe burning causalgic pain along the ulnar border of the forearm requires immediate specialist escalation. Preganglionic lower trunk avulsions require prompt surgical evaluation for contralateral C7 transfer or free functional muscle transfers.
Frequently Asked Questions
Can physiotherapy recover movement in a completely clawed hand?
Physiotherapy helps manage clawing by keeping joints mobile and preventing stiff contractures with custom splints. While nerve surgery is often required for severe root avulsions, dedicated therapy ensures the hand remains supple and ready for functional recovery.
Do I need a doctor referral to consult a nerve rehabilitation physiotherapist on BookPhysio.in?
BookPhysio.in does not ask for a doctor referral. Direct access is protected by the NCAHP Act 2021. You consult registered physiotherapists directly and pay per session with complete fee clarity.
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