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KEY FACTS
Terminology
Imaging
Pathology
Clinical Issues
Diagnostic Checklist
TERMINOLOGY
Synonyms
- Anterior interosseous nerve (AIN) syndrome, Kiloh-Nevin syndrome, pronator syndrome, "honeymooner's paralysis," supracondylar process syndrome
Definitions
- AIN syndrome
- Denervation of flexor pollicis longus (FPL) and flexor digitorum profundus (FDP) muscles of 2nd and 3rd digits
- ± pronator quadratus muscle involvement
- Also called Kiloh-Nevin syndrome
- Pronator syndrome
- Pain ± paresthesias in median nerve distribution
- Motor nerve involvement is rare
- Supracondylar process syndrome
- Rare median neuropathy caused by compression of nerve by ligament of Struthers arising from supracondylar process of humerus
- AIN syndrome
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
- Rodner CM et al: Pronator syndrome and anterior interosseous nerve syndrome. J Am Acad Orthop Surg. 21(5):268-75, 2013
- Dang AC et al: Unusual compression neuropathies of the forearm, part I: radial nerve. J Hand Surg Am. 34(10):1906-14, 2009
- Tsai P et al: Median and radial nerve compression about the elbow. Instr Course Lect. 57:177-85, 2008
- Dunn AJ et al: MR imaging findings of anterior interosseous nerve lesions. Skeletal Radiol. 36(12):1155-62, 2007
- Kim S et al: Role of magnetic resonance imaging in entrapment and compressive neuropathy--what, where, and how to see the peripheral nerves on the musculoskeletal magnetic resonance image: part 2. Upper extremity. Eur Radiol. 17(2):509-22, 2007
- Andreisek G et al: Peripheral neuropathies of the median, radial, and ulnar nerves: MR imaging features. Radiographics. 26(5):1267-87, 2006
- Bordalo-Rodrigues M et al: MR imaging of entrapment neuropathies at the elbow. Magn Reson Imaging Clin N Am. 12(2):247-63, vi, 2004
- Lee MJ et al: Pronator syndrome and other nerve compressions that mimic carpal tunnel syndrome. J Orthop Sports Phys Ther. 34(10):601-9, 2004
- Martinoli C et al: Sonography of entrapment neuropathies in the upper limb (wrist excluded). J Clin Ultrasound. 32(9):438-50, 2004
- Lubahn JD et al: Uncommon nerve compression syndromes of the upper extremity. J Am Acad Orthop Surg. 6(6):378-86, 1998
- Dawson DM: Entrapment neuropathies of the upper extremities. N Engl J Med. 329(27):2013-8, 1993
- Eversmann WW: Proximal median nerve compression. Hand Clin. 8(2):307-15, 1992
- Werner CO: The anterior interosseous nerve syndrome. Int Orthop. 13(3):193-7, 1989
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Pathology
Clinical Issues
Diagnostic Checklist
TERMINOLOGY
Synonyms
- Anterior interosseous nerve (AIN) syndrome, Kiloh-Nevin syndrome, pronator syndrome, "honeymooner's paralysis," supracondylar process syndrome
Definitions
- AIN syndrome
- Denervation of flexor pollicis longus (FPL) and flexor digitorum profundus (FDP) muscles of 2nd and 3rd digits
- ± pronator quadratus muscle involvement
- Also called Kiloh-Nevin syndrome
- Pronator syndrome
- Pain ± paresthesias in median nerve distribution
- Motor nerve involvement is rare
- Supracondylar process syndrome
- Rare median neuropathy caused by compression of nerve by ligament of Struthers arising from supracondylar process of humerus
- AIN syndrome
IMAGING
General Features
Radiographic Findings
CT Findings
MR Findings
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Image Interpretation Pearls
Selected References
- Rodner CM et al: Pronator syndrome and anterior interosseous nerve syndrome. J Am Acad Orthop Surg. 21(5):268-75, 2013
- Dang AC et al: Unusual compression neuropathies of the forearm, part I: radial nerve. J Hand Surg Am. 34(10):1906-14, 2009
- Tsai P et al: Median and radial nerve compression about the elbow. Instr Course Lect. 57:177-85, 2008
- Dunn AJ et al: MR imaging findings of anterior interosseous nerve lesions. Skeletal Radiol. 36(12):1155-62, 2007
- Kim S et al: Role of magnetic resonance imaging in entrapment and compressive neuropathy--what, where, and how to see the peripheral nerves on the musculoskeletal magnetic resonance image: part 2. Upper extremity. Eur Radiol. 17(2):509-22, 2007
- Andreisek G et al: Peripheral neuropathies of the median, radial, and ulnar nerves: MR imaging features. Radiographics. 26(5):1267-87, 2006
- Bordalo-Rodrigues M et al: MR imaging of entrapment neuropathies at the elbow. Magn Reson Imaging Clin N Am. 12(2):247-63, vi, 2004
- Lee MJ et al: Pronator syndrome and other nerve compressions that mimic carpal tunnel syndrome. J Orthop Sports Phys Ther. 34(10):601-9, 2004
- Martinoli C et al: Sonography of entrapment neuropathies in the upper limb (wrist excluded). J Clin Ultrasound. 32(9):438-50, 2004
- Lubahn JD et al: Uncommon nerve compression syndromes of the upper extremity. J Am Acad Orthop Surg. 6(6):378-86, 1998
- Dawson DM: Entrapment neuropathies of the upper extremities. N Engl J Med. 329(27):2013-8, 1993
- Eversmann WW: Proximal median nerve compression. Hand Clin. 8(2):307-15, 1992
- Werner CO: The anterior interosseous nerve syndrome. Int Orthop. 13(3):193-7, 1989
