Tendon transfer considered for persistent intrinsic weakness after failed reinnervation
Ring and little finger clawing addressed with lasso procedure
FDS ring finger lasso most common transfer
Prognostic factors
Age is most important modifiable prognostic factor for recovery
Time to repair influences outcome
Earlier repair yields better functional recovery
Chronic denervation reduces motor endplate viability
Injury level affects recovery
Distal injuries recover faster than proximal injuries
Longer regeneration distances mean delayed and less complete reinnervation of intrinsics
Patient Discharge Instructions
copy discharge instructions
Ulnar nerve injury home care
Wear your elbow splint at night as directed to avoid bending the elbow during sleep
Avoid leaning or resting your elbow on hard surfaces such as armrests or tables
Do not carry heavy objects with the injured arm until cleared by your doctor
Take prescribed pain medications as directed
Ice the elbow for 15 to 20 minutes several times per day if swollen
Activity guidance
Avoid activities requiring prolonged elbow bending such as phone use or cycling
For wrist injuries, avoid direct pressure over the outer wrist
Gentle range of motion exercises are encouraged unless told otherwise
Return to work restrictions depend on injury severity and job demands
Return immediately to the emergency department for
Increasing weakness or new paralysis of hand or fingers
Spreading numbness beyond the ring and little fingers into the forearm
Cold, pale, or blue color of the fingers
Expanding swelling or bruising at the elbow or wrist
Signs of wound infection including redness spreading from wound, pus, fever
Severe pain not controlled with prescribed medications
Follow-up appointments
Hand surgery or nerve specialist within 1 to 2 weeks
Nerve conduction study at 3 to 4 weeks after injury as arranged
Occupational therapy referral for hand exercises and splint fitting
Recovery expectations
Minor compression injuries often recover fully within 4 to 12 weeks
Injuries with nerve damage take months to recover and may be incomplete
Sensation usually returns before strength
Full recovery of small hand muscle strength is not always possible for severe injuries
References
Guidelines and key sources
Cochrane and systematic reviews
Caliandro P et al, Treatment for Ulnar Neuropathy at the Elbow, Cochrane Database Systematic Reviews 2025
Zeidman LA, Pandey DK, An electrodiagnostic grading system for ulnar neuropathy at the elbow, Muscle and Nerve 2020
Pompe SM et al, In situ decompression vs conservative treatment for mild ulnar neuropathy at the elbow, Muscle and Nerve 2020
Clinical guidelines
Hegmann KT et al, ACOEM Practice Guidelines: Elbow Disorders, Journal of Occupational and Environmental Medicine 2013
Pelosi L et al, Expert Consensus on Combined Investigation of Ulnar Neuropathy at the Elbow Using Electrodiagnostic Tests and Nerve Ultrasound, Clinical Neurophysiology 2021
Review articles and landmark sources
Robinson LR, Traumatic injury to peripheral nerves, Muscle and Nerve 2022
Bateman EA et al, Assessment management and rehabilitation of traumatic peripheral nerve injuries for non-surgeons, Muscle and Nerve 2025
Silver S et al, Peripheral Nerve Entrapment and Injury in the Upper Extremity, American Family Physician 2021
Dawson DM, Entrapment Neuropathies of the Upper Extremities, New England Journal of Medicine 1993
Cambon-Binder A, Ulnar Neuropathy at the Elbow, Orthopaedics and Traumatology Surgery and Research 2021
Coding references
ICD-10 G56.2 lesion of ulnar nerve
ICD-10 S54.0 injury of ulnar nerve at forearm level
SNOMED CT ulnar nerve structure concept
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