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Triangular interval syndrome: A differential diagnosis for upper extremity radicular pain
1Institute of Therapeutic Sciences, Clinical Residency in Orthopaedic Physical Therapy, Northville, Michigan 48167, USA. institutemanualpt@yahoo.com
Physiotherapy Theory and Practice
|January 14, 2010
Summary
This case report highlights radial nerve entrapment at the triangular interval as a cause of scapular and arm pain. Treatment involving manual therapy and neural mobilization effectively reduced symptoms and improved nerve mobility.
Area of Science:
- Orthopedics
- Neurology
- Sports Medicine
Background:
- Scapular and upper extremity pain can mimic cervical radiculopathy.
- Accurate diagnosis is crucial for effective treatment of peripheral nerve entrapment.
Observation:
- A 57-year-old female presented with scapular pain radiating into the right upper extremity.
- Clinical assessment ruled out cervical radiculopathy, but indicated radial nerve involvement.
- Symptoms were reproduced with palpation of the lateral scapular area.
Findings:
- Mechanical dysfunction at the triangular interval was identified as the source of radial nerve entrapment.
- Treatment included manual therapy, neural mobilization, corrective exercises, and pain modalities.
- The patient experienced symptom reduction and improved radial nerve mobility.
Implications:
- The triangular interval is a potential site for radial nerve entrapment causing scapular and arm pain.
- This case underscores the importance of considering peripheral nerve involvement in upper extremity pain presentations.
- Targeted treatment of the triangular interval can effectively manage radial nerve dysfunction.
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