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
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
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
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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