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Quantitative Analysis of Scapular Winging Using Moire Topography
Nathan S Lanham, Rifat Ahmed, H Rachel Park1
1Columbia University, Department of Biomedical Engineering, New York, NY, USA.
The Archives of Bone and Joint Surgery
|October 31, 2024
Summary
This study quantitatively characterized scapular winging using Moire Topography (MT). The novel MT method successfully identified scapular winging in simulated scenarios, offering a new tool for shoulder assessment.
Area of Science:
- Biomechanics
- Medical Imaging
- Orthopedics
Background:
- Scapular winging is a condition affecting shoulder function.
- Moire Topography (MT) has been used qualitatively for scapular winging assessment.
- A quantitative method for MT-based scapular winging analysis is needed.
Purpose of the Study:
- To quantitatively characterize scapular winging using a novel Moire Topography (MT) method.
- To validate the accuracy of the MT method for measuring scapular prominence.
Main Methods:
- Analyzed 20 shoulders in 10 healthy subjects.
- Simulated scapular winging using hand-behind-back (HBB) and weighted scaption protocols.
- Validated MT with calibration and control objects of known dimensions.
Main Results:
- Significant differences in scapular measurements were found in both simulated winging groups (P=0.0004 and P=0.0178).
- Scapular winging was most prominent in the HBB position and at lower degrees of scaption (<60°).
Conclusions:
- Quantitative characterization of scapular winging is achievable with the novel MT method.
- The technique identified scapular winging at lower degrees of shoulder elevation.
- Future research should explore real-time, multi-planar analysis in patients with shoulder pathology.
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