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A comparison of hand function in Colles and scaphoid casts using a modified Jebsen Hand Function Test.

Anuhya Vusirikala1, Daniel Williams1, Hui Fen Koo2

  • 1Department of Trauma and Orthopaedics, University College London Hospitals, London, UK.

The Journal of Hand Surgery, European Volume
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A scaphoid cast significantly impairs hand function more than a Colles cast, especially for fine motor tasks and forearm rotation. This impacts daily activities, including modern ones like texting and typing.

Keywords:
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Area of Science:

  • Orthopedics
  • Hand Surgery
  • Rehabilitation Medicine

Background:

  • Colles and scaphoid fractures are common wrist injuries requiring immobilization.
  • Traditional casting methods may impact hand function in daily activities.
  • Evaluating the functional impact of different cast types is crucial for patient recovery.

Purpose of the Study:

  • To compare the functional outcomes of Colles versus scaphoid casts.
  • To assess the impact of these casts on modern daily activities.
  • To determine the effect of thumb immobilization on hand function.

Main Methods:

  • Utilized the Jebsen Hand Function Test with modified subtests.
  • Included tasks such as texting, mouse use, and typing.
  • Recruited twenty healthy volunteers to perform standardized hand function tests.

Main Results:

  • Participants demonstrated significantly worse performance with a scaphoid cast compared to a Colles cast.
  • Fine motor tasks (writing, picking up small objects, stacking checkers) were most affected.
  • Forearm rotation tasks (card turning, picking up large objects) also showed greater impairment with the scaphoid cast.

Conclusions:

  • Scaphoid casts impose a greater functional deficit than Colles casts.
  • Thumb immobilization, often part of scaphoid casting, significantly impacts hand function.
  • Careful consideration of casting techniques is necessary to optimize hand function in daily activities.