Lunotriquetral ligament instability: Difference between revisions
(Created page with "==Background== *Ulnar equivalent of the scapholunate ligament injury *May be confused w/ other causes of ulnar-sided wrist pain *Results from FOOSH with impact on hypothenar emin...") |
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==Background== | ==Background== | ||
*Ulnar equivalent of the scapholunate ligament injury | *Ulnar equivalent of the scapholunate ligament injury | ||
*May be confused | *May be confused with other causes of ulnar-sided wrist pain | ||
*Results from FOOSH with impact on hypothenar eminence | *Results from FOOSH with impact on hypothenar eminence | ||
| Line 7: | Line 7: | ||
*Localized tenderness on ulnar aspect of wrist just distal to ulna | *Localized tenderness on ulnar aspect of wrist just distal to ulna | ||
==Diagnosis== | ==Differential Diagnosis== | ||
{{Hand and finger injury DDX}} | |||
== | ==Evaluation== | ||
* | *X-ray ('''note: imaging is often normal with this injury''') | ||
**PA - Widening of the triquetrolunate joint space | |||
**Lateral - volar intercalated segment instability is seen | |||
***Lunate tilts palmar producing zigzag pattern (opposite of scapholunate injury) | |||
== | ==Management== | ||
*[[Ulnar gutter splint]] or short arm posterior mold | |||
*Refer to orthopedic surgery | |||
[[Category: | ==Disposition== | ||
*Discharge with ortho follow-up | |||
==See Also== | |||
==References== | |||
<references/> | |||
[[Category:Orthopedics]] | |||
[[Category:Sports Medicine]] | |||
Latest revision as of 16:32, 18 October 2019
Background
- Ulnar equivalent of the scapholunate ligament injury
- May be confused with other causes of ulnar-sided wrist pain
- Results from FOOSH with impact on hypothenar eminence
Clinical Features
- Localized tenderness on ulnar aspect of wrist just distal to ulna
Differential Diagnosis
Hand and finger injuries
- Distal finger
- Other finger/thumb
- Boutonniere deformity
- Mallet finger
- Jammed finger
- Jersey finger
- Trigger finger
- Ring avulsion injury
- De Quervain tenosynovitis
- Infiltrative tenosynovitis
- Metacarpophalangeal ulnar ligament rupture (Gamekeeper's thumb)
- Hand
- Wrist
- Drummer's wrist
- Ganglion cyst
- Lunotriquetral ligament instability
- Scaphoid fracture
- Extensor digitorum tenosynovitis
- Compressive neuropathy ("bracelet syndrome")
- Intersection syndrome
- Snapping Extensor Carpi Ulnaris
- Vaughn Jackson syndrome
- General
Evaluation
- X-ray (note: imaging is often normal with this injury)
- PA - Widening of the triquetrolunate joint space
- Lateral - volar intercalated segment instability is seen
- Lunate tilts palmar producing zigzag pattern (opposite of scapholunate injury)
Management
- Ulnar gutter splint or short arm posterior mold
- Refer to orthopedic surgery
Disposition
- Discharge with ortho follow-up