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Table 1 2D and 3D measurement for SIR divided into posture types A, B and C

From: Practical considerations for determination of scapular internal rotation and its relevance in reverse total shoulder arthroplasty planning

 

2D SIR

3D SIR

p-value

Type A (n = 11)

35.1° ± 2.5°

34.7° ± 2.0°

0.671

Type B (n = 55)

43.5° ± 3.4°

42.8° ± 2.3°

0.328

Type C (n = 34)

52.4° ± 4.6°

50.8° ± 3.8°

0.188

  1. SIR scapular internal rotation
  2. p < 0.05*
  3. p < 0.001**
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X