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Published in: BMC Musculoskeletal Disorders 1/2021

Open Access 01-12-2021 | Painful Arc | Technical advance

Use of Gracile and semi-tendinosus tendons (GRAST) for the reconstruction of irreparable rotator cuff tears

Authors: Marie Protais, Maxime Laurent-Perrot, Mickaël Artuso, M. Christian Moody, Alain Sautet, Marc Soubeyrand

Published in: BMC Musculoskeletal Disorders | Issue 1/2021

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Abstract

Background

Irreparable rotator cuff tears are common and difficult to treat. Techniques for “filling the loss of substance” require fixation to the rotator cuff stump (tendon augmentation) or to the glenoid (superior capsular reconstruction), which are complicated by the narrow working zone of the subacromial space. The main objective of this study was to determine whether a braided graft of gracilis (GR) and semitendinosus (ST) could fill a loss of tendon substance from an irreparable rupture of the supra- and infraspinatus, by fixing the graft to the greater tuberosity and the spine of the scapula.

Methods

This was a cadaveric study with the use of ten specimens. The GRA and ST tendons were harvested, braided and reinforced with suture. An experimental tear of the supraspinatus (SS) and upper infraspinatus (IS) retracted at the glenoid was made. The GRAST transplant was positioned over the tear. The transplant was attached to the greater tuberosity by two anchors and then attached to the medial third of the scapular spine by trans-osseous stitching. The percentage of filling obtained was then measured and passive mobility of the shoulder was assessed. We proceeded to the same technique under arthroscopy for a 73 years old patient whom we treated for a painful shoulder with irreparable cuff tear. We inserted a GRAST graft using arthroscopy.

Results

The Braided-GRAST allowed a 100% filling of the loss of tendon substance. Mobility was complete in all cases.

Conclusion

This technique simplifies the medial fixation and restores the musculo-tendinous chain where current grafting techniques only fill a tendinous defect. The transplant could have a subacromial “spacer” effect and lower the humeral head. The donor site morbidity and the fate of the transplant in-vivo are two limits to be discussed. This anatomical study paves the way for clinical experimentation.
Literature
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go back to reference Cerulli G, Placella G, Sebastiani E, Tei MM, Speziali A, Manfreda F. ACL reconstruction: choosing the graft. Joints. 2013;29:459–70. Cerulli G, Placella G, Sebastiani E, Tei MM, Speziali A, Manfreda F. ACL reconstruction: choosing the graft. Joints. 2013;29:459–70.
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go back to reference Kapandji. Physiologie articulaire membre supérieur, éditions Maloine, 2005, pp 36–40. Kapandji. Physiologie articulaire membre supérieur, éditions Maloine, 2005, pp 36–40.
Metadata
Title
Use of Gracile and semi-tendinosus tendons (GRAST) for the reconstruction of irreparable rotator cuff tears
Authors
Marie Protais
Maxime Laurent-Perrot
Mickaël Artuso
M. Christian Moody
Alain Sautet
Marc Soubeyrand
Publication date
01-12-2021
Publisher
BioMed Central
Published in
BMC Musculoskeletal Disorders / Issue 1/2021
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/s12891-021-04197-6

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