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Trans-scaphoid palmar lunate dislocation with concurrent scapholunate ligament disruption
The Journal of Hand Surgery
|September 1, 1986
Summary
Palmar lunate dislocation typically involves either a scapholunate ligament tear or a scaphoid fracture, but not both. This case presents a rare instance of trans-scaphoid palmar lunate dislocation with a concurrent scapholunate ligament disruption.
Area of Science:
- Orthopedic Surgery
- Hand Surgery
- Traumatology
Background:
- Palmar lunate dislocation is a rare wrist injury.
- It is commonly associated with either scapholunate ligament disruption or scaphoid fracture.
- These two etiologies are generally considered mutually exclusive.
Observation:
- A case of palmar lunate dislocation is presented.
- This dislocation occurred in a trans-scaphoid pattern.
- Complete disruption of the scapholunate ligament was also noted.
Findings:
- The reported case demonstrates a simultaneous trans-scaphoid fracture and complete scapholunate ligament disruption.
- This challenges the traditional understanding of mutually exclusive injury patterns in palmar lunate dislocations.
- This specific combination represents a unique injury mechanism.
Implications:
- This case expands the spectrum of known injuries associated with palmar lunate dislocation.
- It suggests that complex, combined injuries may occur.
- Further research into the biomechanics of wrist trauma is warranted to understand such complex presentations.
