Bookmarks
KEY FACTS
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Synonyms
- Ulnar impaction syndrome: ulnocarpal abutment, ulnocarpal loading, ulnar abutment, ulnolunate abutment
Definitions
- Ulnar impaction syndrome: ulnar wrist pain related to altered mechanics between ulna, triangular fibrocartilage (TFC), lunate, and triquetrum
- Ulnar styloid impaction: excessively long or fractured ulnar styloid impinges triquetrum
- Radial styloid impingement: styloid impingement on dorsal scaphoid with forced radial deviation
- Dorsal impingement: impingement of distal radius on scaphoid ± lunate
- Scaphoid impaction syndrome: impaction of dorsal scaphoid by dorsal radius
- Hamatolunate impaction: medial wrist pain related to cartilage loss of proximal hamate
IMAGING
General Features
Radiographic Findings
CT Findings
Nuclear Medicine 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
- Lim W et al: Review article: the differential diagnosis of bone marrow edema on wrist MRI. Skeletal Radiol. 48(10):1525-39, 2019
- Sachar K: Ulnar-sided wrist pain: evaluation and treatment of triangular fibrocartilage complex tears, ulnocarpal impaction syndrome, and lunotriquetral ligament tears. J Hand Surg Am. 37(7):1489-500, 2012
- Sammer DM et al: Ulnar impaction. Hand Clin. 26(4):549-57, 2010
- Crema MD et al: MDCT arthrography features of ulnocarpal impaction syndrome. AJR Am J Roentgenol. 193(5):1376-81, 2009
- Greenberg JA: Reconstruction of the distal ulna: instability, impaction, impingement, and arthrosis. J Hand Surg Am. 34(2):351-6, 2009
- Bickel KD: Arthroscopic treatment of ulnar impaction syndrome. J Hand Surg Am. 33(8):1420-3, 2008
- Henry M: Arthroscopic management of dorsal wrist impingement. J Hand Surg Am. 33(7):1201-4, 2008
- Webb BG et al: Gymnastic wrist injuries. Curr Sports Med Rep. 7(5):289-95, 2008
- Rettig AC: Athletic injuries of the wrist and hand: part II: overuse injuries of the wrist and traumatic injuries to the hand. Am J Sports Med. 32(1):262-73, 2004
- Steinborn M et al: MR imaging of ulnocarpal impaction after fracture of the distal radius. AJR Am J Roentgenol. 181(1):195-8, 2003
- Cerezal L et al: Imaging findings in ulnar-sided wrist impaction syndromes. Radiographics. 22(1):105-21, 2002
- Nakamura K et al: Type I versus type II lunates: ligament anatomy and presence of arthrosis. J Hand Surg Am. 26(3):428-36, 2001
- Thurston AJ et al: Hamato-lunate impingement: an uncommon cause of ulnar-sided wrist pain. Arthroscopy. 16(5):540-4, 2000
- Viegas SF et al: Medial (hamate) facet of the lunate. J Hand Surg Am. 15(4):564-71, 1990
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Imaging
Top Differential Diagnoses
Clinical Issues
TERMINOLOGY
Synonyms
- Ulnar impaction syndrome: ulnocarpal abutment, ulnocarpal loading, ulnar abutment, ulnolunate abutment
Definitions
- Ulnar impaction syndrome: ulnar wrist pain related to altered mechanics between ulna, triangular fibrocartilage (TFC), lunate, and triquetrum
- Ulnar styloid impaction: excessively long or fractured ulnar styloid impinges triquetrum
- Radial styloid impingement: styloid impingement on dorsal scaphoid with forced radial deviation
- Dorsal impingement: impingement of distal radius on scaphoid ± lunate
- Scaphoid impaction syndrome: impaction of dorsal scaphoid by dorsal radius
- Hamatolunate impaction: medial wrist pain related to cartilage loss of proximal hamate
IMAGING
General Features
Radiographic Findings
CT Findings
Nuclear Medicine 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
- Lim W et al: Review article: the differential diagnosis of bone marrow edema on wrist MRI. Skeletal Radiol. 48(10):1525-39, 2019
- Sachar K: Ulnar-sided wrist pain: evaluation and treatment of triangular fibrocartilage complex tears, ulnocarpal impaction syndrome, and lunotriquetral ligament tears. J Hand Surg Am. 37(7):1489-500, 2012
- Sammer DM et al: Ulnar impaction. Hand Clin. 26(4):549-57, 2010
- Crema MD et al: MDCT arthrography features of ulnocarpal impaction syndrome. AJR Am J Roentgenol. 193(5):1376-81, 2009
- Greenberg JA: Reconstruction of the distal ulna: instability, impaction, impingement, and arthrosis. J Hand Surg Am. 34(2):351-6, 2009
- Bickel KD: Arthroscopic treatment of ulnar impaction syndrome. J Hand Surg Am. 33(8):1420-3, 2008
- Henry M: Arthroscopic management of dorsal wrist impingement. J Hand Surg Am. 33(7):1201-4, 2008
- Webb BG et al: Gymnastic wrist injuries. Curr Sports Med Rep. 7(5):289-95, 2008
- Rettig AC: Athletic injuries of the wrist and hand: part II: overuse injuries of the wrist and traumatic injuries to the hand. Am J Sports Med. 32(1):262-73, 2004
- Steinborn M et al: MR imaging of ulnocarpal impaction after fracture of the distal radius. AJR Am J Roentgenol. 181(1):195-8, 2003
- Cerezal L et al: Imaging findings in ulnar-sided wrist impaction syndromes. Radiographics. 22(1):105-21, 2002
- Nakamura K et al: Type I versus type II lunates: ligament anatomy and presence of arthrosis. J Hand Surg Am. 26(3):428-36, 2001
- Thurston AJ et al: Hamato-lunate impingement: an uncommon cause of ulnar-sided wrist pain. Arthroscopy. 16(5):540-4, 2000
- Viegas SF et al: Medial (hamate) facet of the lunate. J Hand Surg Am. 15(4):564-71, 1990
