Partial Brachial Plexus Injury

About Partial Brachial Plexus Injury

Chronic partial brachial plexus injuries usually involve persistent weakness of shoulder abduction, elbow flexion or specific hand functions. Mild nerve injury arm cases may show useful spontaneous recovery, but plateaus often leave functional gaps that interfere with daily life and work. Reconstructive options at this stage focus on redirecting working muscles to compensate for paralysed ones in a planned, predictable way.

Assessment is detailed and patient-specific. We grade each muscle, measure joint range, map sensation and document any pain syndromes. Imaging confirms bone alignment and joint condition. We also explore daily tasks the patient finds difficult, since this guides the priority list. Partial nerve repair late in the course is rarely useful, so the conversation focuses on functional reconstruction.

For upper-type residual deficits, common procedures include trapezius transfer for shoulder abduction, latissimus or pectoralis transfers for elbow flexion, and selective tenodesis for thumb or finger function. For lower-type residual deficits, tendon transfers from forearm extensor or flexor groups can restore opposition, intrinsic balance and useful grasp. Each plan is designed around the patient's existing strengths.

Free functioning muscle transfer is reserved for patients with no usable local donors but reasonable proximal nerve potential. Joint fusions, particularly at the wrist or shoulder, are sometimes added when stability matters more than range. Pain syndromes, which often complicate chronic injuries, are addressed in parallel with surgery so that the reconstructed limb can be used comfortably during rehabilitation.

Surgery is staged where multiple goals are pursued. Postoperative care includes splinting in the protective position, careful pain control and early mobilisation of unaffected joints to prevent stiffness. Patients are typically in hospital for two to five days. Smoking, uncontrolled diabetes and excess alcohol are addressed before surgery, as they impair healing of both nerve and muscle.

Rehabilitation is the cornerstone of nerve weakness treatment in chronic partial injuries. Transferred muscles must be retrained, often with biofeedback and structured exercises, to take over their new role. Reviews continue for many months, with secondary refinements considered when the first surgery has fully matured. Our team supports patients with clear goals, written plans and regular progress assessments throughout.

What to expect

• Detailed mapping of residual muscle strength and joint range
• Tendon transfers tailored to upper- or lower-type deficits
• Selective free muscle transfer where local donors are insufficient
• Joint fusions for stability when range is less important than control
• Coordinated management of pain and stiffness
• Structured rehabilitation with periodic surgical review

Recovery

• Splint protection during the first four to six weeks after tendon transfer
• Hospital stay of two to five days for most procedures
• Gradual mobilisation and re-education of transferred muscles
• Avoidance of smoking and tight blood sugar control to support healing
• Long-term physiotherapy with periodic review for additional refinements