Autologous Tenocyte Implantation (ATI) and the Use of Collagen Scaffolds: a Case Report of a Novel Surgical Treatment for Gluteal Tendon Repair


Autologous Tenocyte Implantation (ATI) and the Use of Collagen Scaffolds: a Case Report of a Novel Surgical Treatment for Gluteal Tendon Repair


John M O’Donnell1,2, Rowan Flanagan3, Jane Fitzpatrick4,5

1Hip Arthroscopy Australia, Richmond, Australia; 2Swinburne University, Melbourne, Australia; 3The Northern Hospital, Melbourne, Australia; 4Centre for Health and Exercise Sports Medicine, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Australia; 5Joint Health Institute Ltd, Melbourne, Australia


Background: Ortho-biological therapies such as platelet-rich plasma and autologous tenocyte implantation injections are hypothesized to introduce cellular mediators such as growth factors into tendons, promoting natural healing.

Methods: This case introduces a 63-year-old female with an extensive history of lateral hip pain and treatment refractory tendinopathy with tearing. She underwent open surgery to repair the gluteus medius tendon, using supplementary autologous tenocyte implantation (ATI) in conjunction with a Celgro (Orthocell, Perth, Australia) collagen scaffold.

Level of evidence: 4

Results: She had normal function in the hip at 12 months. MRI scans post-operatively at 12 months showed a marked reduction in inflammation, an intact tendon and a reduction in atrophic changes in the muscle belly.

Conclusion: Surgical repair of a large degenerate tear of the gluteus medius tendon, augmented with autologous tenocyte implantation in a collagen scaffold led to an excellent patient outcome and MRI findings demonstrated tendon healing with improved tendon structure and reduced inflammation.


Keywords: Lateral hip pain, gluteal tendinopathy, greater trochanteric pain syndrome, autologous tenocyte implantation, collagen scaffold.


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How to cite this article:

John M O’Donnell, Rowan Flanagan, Jane Fitzpatrick. Autologous Tenocyte Implantation (ATI) and the Use of Collagen Scaffolds: a Case Report of a Novel Surgical Treatment for Gluteal Tendon Repair. International Journal of Case Reports, 2021 5:194. DOI: 10.28933/ijcr-2020-12-2605


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