Histologic Evaluation of Tibial Attachment in 11-Year Double-Bundle ACL Reconstruction with Hamstring Tendons: A Case Report

Yuki Okazaki, Nobuhiro Abe, Kimihiko Makiyama, Takayuki Furumatsu, Shinichi Miyazawa, Toshifumi Ozaki

Research output: Contribution to journalArticlepeer-review

Abstract

CASE: A 49-year-old woman injured her anterior cruciate ligament (ACL) as a high-school student. Double-bundle ACL reconstruction (DBACLR) using hamstring tendon grafts was performed because of recurrent instability. Eleven years after DBACLR, total knee arthroplasty was performed because of osteoarthritis progression. Histologic analysis was completed to observe the osteointegration of the tendon in the obtained proximal tibia. The tibial tunnel showed Sharpey-like fibers anteriorly, connecting the tendon graft and lamellar bone, whereas the intraarticular exit revealed well-aligned chondrocytes posteriorly, indicating chondral metaplasia of the tendon graft. CONCLUSION: Tendon-bone healing can regenerate both fibrous insertion and chondral metaplasia in DBACLR.

Original languageEnglish
JournalJBJS Case Connector
Volume11
Issue number2
Publication statusPublished - Apr 7 2021

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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