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Mechanical strength of the rotator cuff and cable interface: a complete histological and biomechanical study.
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- Additional Information
- Source:
Publisher: Springer International Country of Publication: Germany NLM ID: 8608029 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1279-8517 (Electronic) Linking ISSN: 09301038 NLM ISO Abbreviation: Surg Radiol Anat Subsets: MEDLINE
- Publication Information:
Original Publication: Berlin ; New York : Springer International, c1986-
- Subject Terms:
- Abstract:
Purpose: This study sought to evaluate the biomechanical properties of the interface between the rotator cuff and the semicircular humeral ligament or rotator cable (RCa) using histological and biomechanical techniques.
Methods: Out of 13 eligible cadaver specimens, 5 cadaver shoulders with an intact rotator cuff were included, 8 were excluded due to an injured rotator cuff. The histological study enables us to describe the capsule-tendon interface between the infraspinatus tendon (IST) or supraspinatus tendon (SST) and RCa, and to detect loose connective tissue layers to determine their precise location and measure their length along the interface. The biomechanical study sought to characterize and compare the mechanical strength of the IST-RCa versus SST-RCa interfaces.
Results: The average thickness of the RCa was 1.44 ± 0.20 mm. The histological study revealed a loose connective tissue layer at the IST-RCa interface, a finding not observed at the SST-RCa interface. The biomechanical study showed that the rigidity of the SST-RCa interface (72.10 -2 N/mm) was 4.5 times higher than for the IST-RCa interface (16.10 -2 N/mm) and the average maximum forces reached were 19.0 N and 10.6 N for the SST-RCa and IST- RCa interfaces, respectively.
Conclusion: The IST-RCa interface consists of a loose connective tissue layer contrary to the SST-RCa interface. In parallel, two different groups in terms of the mechanical response were identified: the IST-RCa interface group had less rigidity and ruptured more quickly than the SST-RCa interface, therefore emerging as the most vulnerable interface and explaining a potential extension of rotator cuff tears.
Competing Interests: Declarations. Conflict of interest: The authors declare no competing interests. Ethical approval: The research protocol was approved by our institutional review board Rennes School of Surgery (Rennes University anatomy laboratory). The university scientific committee ensured that written consent for body donation had been obtained and filed prior to death for all anatomical subjects. Our work complied with French regulations. The study was also exempt from French law pertaining to biomedical research (Huriet–Serusclat law of December 20, 1998) as no additional interventions were required. IRB information: This study was approved by our institutional review board.
(© 2024. The Author(s).)
- References:
Arthroscopy. 2021 Aug;37(8):2444-2451. (PMID: 33812917)
Arthroscopy. 2022 Jul;38(7):2131-2141.e1. (PMID: 34968654)
Anat Sci Int. 2019 Jan;94(1):53-57. (PMID: 29987440)
Radiology. 2006 Nov;241(2):485-91. (PMID: 17057069)
J Shoulder Elbow Surg. 2015 Dec;24(12):1845-51. (PMID: 26589385)
Clin Sports Med. 2012 Oct;31(4):589-604. (PMID: 23040548)
Eur Radiol. 2015 Aug;25(8):2240-5. (PMID: 25680718)
J Shoulder Elbow Surg. 2002 May-Jun;11(3):212-8. (PMID: 12070491)
J Bone Joint Surg Am. 2005 Jun;87(6):1229-40. (PMID: 15930531)
Arthroscopy. 1993;9(6):611-6. (PMID: 8305096)
AJR Am J Roentgenol. 2015 Feb;204(2):360-6. (PMID: 25615759)
Arthroscopy. 2008 Aug;24(8):961-5. (PMID: 18657747)
Skeletal Radiol. 2019 Jan;48(1):109-117. (PMID: 29982855)
J Shoulder Elbow Surg. 2010 Oct;19(7):1063-9. (PMID: 20392654)
Knee Surg Sports Traumatol Arthrosc. 2017 Jul;25(7):2047-2050. (PMID: 27139230)
Am J Sports Med. 2016 Jun;44(6):1423-30. (PMID: 26944572)
Taehan Yongsang Uihakhoe Chi. 2021 Nov;82(6):1366-1387. (PMID: 36238879)
J Bone Joint Surg Am. 1992 Jun;74(5):713-25. (PMID: 1624486)
- Contributed Indexing:
Keywords: Connective tissue; Mechanical strength; Rotator cable; Rotator cuff; Rotator cuff and cable interface
- Publication Date:
Date Created: 20241023 Date Completed: 20241120 Latest Revision: 20241123
- Publication Date:
20241123
- Accession Number:
PMC11579099
- Accession Number:
10.1007/s00276-024-03499-3
- Accession Number:
39441350
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