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Table 1 Differences of the distance* and angle † from the line of inter-spinous process of the upper thoracic vertebra at each interval of motion degree of glenohumeral and scapulohumeral rhythm on operated and contralateral shoulder at 30°, 60°, 90°, 120° of abduction

From: How does scapula motion change after reverse total shoulder arthroplasty? - a preliminary report

Interval

Distance* (mm)

Angle† (°)

RTSA

Normal

RTSA

Normal

0°- 30°

−12.1

9.1

0.8

2.0

30°- 60°

18.3

13.9

13.8

6.5

60°- 90°

18.7

7.4

6.3

5.8

90°- 120°

28.4

19.3

12.6

8.0

  1. RTSA = reverse total shoulder arthroplasty; Distance* = The distance between line of inter-spinous process of the upper thoracic vertebra and inferior pole of scapula; Angle† = The angle between line of inter-spinous process of upper thoracic vertebra and scapular medial border.
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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