Article

Effect of scaphoid and triquetrum excision after limited stabilisation on cadaver wrist movement.

Department of Orthopaedics and Trauma, University of Adelaide, Royal Adelaide Hospital, South Australia, Australia.
The Journal of hand surgery, European volume 08/2009; 34(5):614-7. DOI:10.1177/1753193408094923 pp.614-7
Source: PubMed

ABSTRACT This study assessed the effect of excision of the scaphoid and triquetrum on the range of motion of the embalmed cadaver wrist joint after midcarpal stabilisation. The range of motion was measured in 12 cadaver wrists before and after stabilisation of the joints between the lunate, capitate, triquetrum and hamate. This was measured again following resection of the scaphoid and then the triquetrum. Scaphoid excision after four-corner stabilisation increased the radioulnar (RU) arc by 12 degrees and the flexion-extension (F-E) arc by 10 degrees. Subsequent excision of the triquetrum, to produce a three-corner stabilisation, further increased the RU arc by 7 degrees and the F-E arc by 6 degrees. Three-corner stabilisation with excision of scaphoid and triquetrum improved wrist motion in embalmed cadavers.

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Keywords

10 degrees
 
12 cadaver wrists
 
12 degrees
 
6 degrees
 
7 degrees
 
embalmed cadaver wrist joint
 
embalmed cadavers
 
F-E arc
 
four-corner stabilisation
 
joints
 
midcarpal stabilisation
 
resection
 
RU
 
RU arc
 
scaphoid
 
Scaphoid excision
 
stabilisation
 
Subsequent excision
 
Three-corner stabilisation
 
triquetrum