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Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 27, Issue 6, pp 1882–1890 | Cite as

Allograft for knee ligament surgery: an American perspective

  • Robert TishermanEmail author
  • Kevin Wilson
  • Alexandra Horvath
  • Kevin Byrne
  • Joseph De Groot
  • Volker Musahl
KNEE

Abstract

Purpose

Allografts are frequently use for ligamentous reconstruction at the knee. In the United States, tissue donation and distribution are highly regulated processes with thorough oversight from private and government entities. Allograft is widely available in the United States and allograft procurement is a large industry with varying procurement, sterilization, processing, and distribution procedures. It is important to understand allograft regulation and processing which may affect graft mechanical properties and biological graft integration.

Methods

English-language literature, United States government and regulatory agency statues pertaining to allograft procurement, distribution, and usage were reviewed and the findings summarized.

Results

During the processing of allograft, multiple factors including sterilization procedures, irradiation, storage conditions, and graft type all affect the biomechanical properties of the allograft tissue. Biological incorporation and ligamentization of allograft does occur, but at a slower rate compared with autograft. For ligamentous reconstruction around the knee, allograft offers shorter operative time, no donor-site morbidity, but has shown an increased risk for graft failure compared to autograft.

Conclusion

This article reviews the regulations on graft tissue within the United States, factors affecting the biomechanics of allograft tissue, differences in allograft tissue choices, and the use of allograft for anterior cruciate ligament reconstruction and multiligamentous knee injury reconstruction.

Level of evidence

V

Keywords

Allograft Reconstruction Knee Sports medicine ACL Multi-ligament knee injury 

Notes

Author contributions

VM conceived of the study, participated in the review process, and helped to draft the manuscript. RT, JDG, KW, KB, and AH carried out the literature review and drafted the manuscript. All authors read and approved the final manuscript.

Funding

No external funding was used.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This article does not contain any studies with human participants performed by any of the authors.

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Copyright information

© European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2019

Authors and Affiliations

  1. 1.Department of Orthopaedic SurgeryUniversity of PittsburghPittsburghUSA
  2. 2.Department of Orthopaedics, Institute of Clinical Sciences, The Sahlgrenska AcademyUniversity of GothenburgGöteborgSweden

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