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The anterior interosseous nerve syndrome.
1Department of Orthopaedic Surgery, Hospital of Helsingborg, Helsingborg, Sweden.
International Orthopaedics
|January 1, 1989
Summary
Anterior interosseous nerve syndrome, often caused by fibrous bands, can be diagnosed using electrophysiological tests. Surgical neurolysis offers better outcomes for complete nerve lesions compared to partial ones affecting the thumb or index finger.
Area of Science:
- Neurology
- Surgical Anatomy
Background:
- Anterior interosseous nerve syndrome (AINS) is a condition affecting forearm motor function.
- Diagnosis can be challenging due to spontaneous symptom onset.
Purpose of the Study:
- To report four new cases of AINS treated with neurolysis.
- To review the literature and analyze treatment outcomes.
Main Methods:
- Case series reporting on four patients undergoing neurolysis for AINS.
- Literature review of sixty-five previously reported cases.
- Electrophysiological examinations were utilized for diagnosis.
Main Results:
- The most common cause identified was fibrous bands within the pronator teres muscle.
- Surgical neurolysis was performed in all reported cases.
- Complete nerve lesions showed better post-operative outcomes than partial lesions.
Conclusions:
- Anterior interosseous nerve entrapment is frequently caused by fibrous bands in the pronator teres.
- Electrophysiological studies are crucial for accurate AINS diagnosis.
- Surgical outcomes are more favorable for complete nerve injuries.