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Measuring 3D In-vivo Shoulder Kinematics using Biplanar Videoradiography
Published on: March 12, 2021
Oxford shoulder score in a normal population.
Nicholas David Clement1, Charles M Court-Brown1
1Department of Orthopaedics and Trauma, The Royal Infirmary of Edinburgh, Little France, Edinburgh, UK.
The Oxford shoulder score (OSS) differs significantly with age and gender in asymptomatic individuals. A normalized OSS can be calculated using age and gender-specific data to account for these variations.
Area of Science:
- Orthopedics
- Musculoskeletal Health
- Biostatistics
Background:
- Shoulder function and scores can vary by age and gender.
- Existing Oxford shoulder scores (OSS) may not account for these demographic differences.
- Age and gender adjustments could improve the accuracy of OSS interpretation.
Purpose of the Study:
- To establish normal Oxford shoulder score (OSS) values for an asymptomatic population.
- To analyze the influence of age and gender on OSS.
- To develop a method for normalizing OSS based on age and gender.
Main Methods:
- 202 patients with asymptomatic shoulders (aged 20-99) completed the OSS.
- Exclusion criteria included prior shoulder pathology, injury, or polyarthropathy.
- Data were analyzed to determine correlations between OSS, age, and gender.
Main Results:
- Mean OSS significantly correlated with age, increasing with older age (r = 0.62, P < 0.0001).
- Females had a higher mean OSS (18.8) than males (16.3), a statistically significant difference (P = 0.0001).
- A formula for a normalized OSS was proposed: (raw score/normal score) × 100.
Conclusions:
- Normal OSS data were established for an urban population.
- Age and gender are significant factors influencing OSS in asymptomatic shoulders.
- A relative OSS can be calculated using the provided normal data and age/gender adjustments.
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