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Kirsch JM, Nathani A, Robbins CB, et al. Is There an Association Between the "Critical Shoulder Angle" and Clinical Outcome After Rotator Cuff Repair?. Orthop J Sports Med. 2017;5(4):2325967117702126doi: 10.1177/2325967117702126.
Kirsch, J. M., Nathani, A., Robbins, C. B., Gagnier, J. J., Bedi, A., & Miller, B. S. (2017). Is There an Association Between the "Critical Shoulder Angle" and Clinical Outcome After Rotator Cuff Repair?. Orthopaedic journal of sports medicine, 5(4), 2325967117702126. https://doi.org/10.1177/2325967117702126
Kirsch, Jacob M, et al. "Is There an Association Between the "Critical Shoulder Angle" and Clinical Outcome After Rotator Cuff Repair?." Orthopaedic journal of sports medicine vol. 5,4 (2017): 2325967117702126. doi: https://doi.org/10.1177/2325967117702126
Kirsch JM, Nathani A, Robbins CB, Gagnier JJ, Bedi A, Miller BS. Is There an Association Between the "Critical Shoulder Angle" and Clinical Outcome After Rotator Cuff Repair?. Orthop J Sports Med. 2017 Apr 18;5(4):2325967117702126. doi: 10.1177/2325967117702126. eCollection 2017 Apr. PMID: 28451621; PMCID: PMC5400133.
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Orthop J Sports Med. 2017 Apr 18;5(4):2325967117702126. doi: 10.1177/2325967117702126. eCollection 2017 Apr.

Is There an Association Between the "Critical Shoulder Angle" and Clinical Outcome After Rotator Cuff Repair?.

Orthopaedic journal of sports medicine

Jacob M Kirsch, Amit Nathani, Christopher B Robbins, Joel J Gagnier, Asheesh Bedi, Bruce S Miller

Affiliations

  1. Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan, USA.
  2. Department of Epidemiology, University of Michigan, Ann Arbor, Michigan, USA.

PMID: 28451621 PMCID: PMC5400133 DOI: 10.1177/2325967117702126

Abstract

BACKGROUND: Variations in scapular morphology have been associated with the development of atraumatic rotator cuff tears (RCTs). The critical shoulder angle (CSA) accounts for both glenoid inclination and lateral extension of the acromion. The impact of the CSA on outcomes after rotator cuff repair (RCR) has not been investigated previously.

HYPOTHESIS: Our hypothesis was that individuals with smaller CSAs will have better patient-reported outcome scores over time compared with those with larger CSAs. Theoretically, a smaller CSA minimizes the biomechanical forces favoring superior translation of the humeral head, which may be advantageous after RCR. This is the first study to examine the relationship between the CSA and clinical outcomes after RCR.

STUDY DESIGN: Cohort study; Level of evidence, 2.

METHODS: Fifty-three patients (mean age, 61 years) with atraumatic full-thickness RCTs who underwent arthroscopic RCR were prospectively evaluated. Demographic data as well as the Western Ontario Rotator Cuff Index (WORC) score, American Shoulder and Elbow Surgeons (ASES) score, and a visual analog scale (VAS) for pain were prospectively collected at various time points up to 24 months postoperatively. Statistical analysis included longitudinal multilevel regression modeling to investigate the association between the CSA and the WORC, ASES, and VAS scores.

RESULTS: The overall clinical outcome, as measured by the WORC, ASES, and VAS, improved significantly (

CONCLUSION: The CSA did not appear to be a significant predictor of patient-reported outcomes after arthroscopic repair of atraumatic full-thickness RCTs.

Keywords: acromion; critical shoulder angle; glenoid; humeral head; rotator cuff; rotator cuff tear; shoulder

Conflict of interest statement

The authors declared that they have no conflicts of interest in the authorhip and publication of this contribution.

References

  1. Clin Sports Med. 1991 Oct;10 (4):823-38 - PubMed
  2. J Shoulder Elbow Surg. 2014 Apr;23 (4):536-41 - PubMed
  3. J Bone Joint Surg Am. 1972 Jan;54(1):41-50 - PubMed
  4. Clin Biomech (Bristol, Avon). 2016 Feb;32:268-73 - PubMed
  5. J Orthop Res. 2016 Jun;34(6):1047-52 - PubMed
  6. J Bone Joint Surg Am. 2006 Apr;88(4):800-5 - PubMed
  7. J Shoulder Elbow Surg. 1996 Jan-Feb;5(1):1-11 - PubMed
  8. J Shoulder Elbow Surg. 2011 Oct;20(7):1082-6 - PubMed
  9. J Shoulder Elbow Surg. 2003 Jul-Aug;12(4):360-4 - PubMed
  10. J Orthop Res. 2014 Jul;32(7):952-7 - PubMed
  11. J Bone Joint Surg Am. 2013 Nov 6;95(21):1920-6 - PubMed
  12. J Bone Joint Surg Am. 2012 Oct 17;94(20):1862-9 - PubMed
  13. Orthop Traumatol Surg Res. 2016 Sep;102(5):559-62 - PubMed
  14. Am J Sports Med. 1998 Nov-Dec;26(6):836-40 - PubMed
  15. J Shoulder Elbow Surg. 2016 Aug;25(8):1328-36 - PubMed
  16. Arthroscopy. 2016 Apr;32(4):569-75 - PubMed
  17. Knee Surg Sports Traumatol Arthrosc. 2016 Jul;24(7):2244-51 - PubMed
  18. J Orthop Res. 2004 Jan;22(1):202-7 - PubMed
  19. Bone Joint J. 2013 Jul;95-B(7):935-41 - PubMed
  20. Clin Orthop Relat Res. 2003 Feb;(407):86-91 - PubMed

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