Related Experiment Video
Updated: Aug 27, 2025
07:06
Block Building Task Identifies Distinct Groups of Left/Right-hand Choice Patterns After Unilateral Peripheral Nerve Injury
Published on: March 21, 2025
706
Morphological risk factors for scaphoid fracture: a case-control study.
Abigael Cohen1, Thomas Claessen2, Corne van den Berg3
1Department of Orthopaedic Surgery and Sports Medicine, Erasmus MC University Medical Center, Room Nc-424, PO Box 2040, 3000 CA, Rotterdam, The Netherlands. a.cohen.1@erasmusmc.nl.
Summary
This study investigated wrist shape as a risk factor for scaphoid fractures. While one specific wrist morphology showed a weak association, it is unlikely to improve the diagnosis of occult scaphoid fractures.
Area of Science:
- Orthopedic surgery
- Radiology
- Biomechanical analysis
Background:
- Scaphoid fractures are common wrist injuries.
- Initial radiographs often miss occult fractures, leading to unnecessary treatment.
- Existing prediction rules lack accuracy for occult fractures.
Purpose of the Study:
- To investigate if specific wrist morphological features are associated with sustaining a scaphoid fracture.
- To explore novel risk factors beyond traditional clinical and demographic data.
Main Methods:
- Retrospective case-control study of adult patients with suspected scaphoid fractures.
- Utilized statistical shape modeling (SSM) and linear measurements on radiographs.
- Logistic regression analysis to identify associations between wrist shape and scaphoid fracture.
Main Results:
- One posteroanterior (PA) wrist shape mode (PA mode 4) showed a statistically significant association with scaphoid fractures (OR 1.40).
- This morphology was characterized by ulna plus variance, a narrower distal radius, increased volar tilt, and radial inclination.
- Reliability of PA modes and linear measurements was generally good/excellent, while lateral modes were moderate/poor.
Conclusions:
- A specific complex wrist shape was weakly associated with scaphoid fractures.
- This morphological risk factor is unlikely to enhance the future identification of occult scaphoid fractures due to its weak association and difficulty in radiographic identification.
