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Title: The bone microstructure from anterior cruciate ligament footprintsis similar after ligament reconstruction and does not affect long‑termoutcomes
Authors: Stolarz, Mateusz
Rajca, Jolanta
Cyganik, Paulina
Karpe, Jacek
Wróbel, Zygmunt
Binkowski, Marcin
Humpa, Filip
Janik, Małgorzata A.
Czyżewski, Damian
Kwiatkowski, Zbigniew
Ficek, Krzysztof
Keywords: Anterior cruciate ligament; ACL reconstruction; Bone tunnels; Tendon to bone healing
Issue Date: 2021
Citation: "Knee Surgery, Sports Traumatology, Arthroscopy" 2021, (Early access), s. 1-10
Abstract: Purpose The purpose of this study was to assess the quality of the bone tissue microstructure from the footprints of the anterior cruciate ligament (ACL) and its impact on late follow-up outcomes in patients who undergo anterior cruciate ligament reconstruction (ACLR). Methods The records of 26 patients diagnosed with a completely torn ACL who underwent ACLR were collected. During the surgery performed using the Felmet method, bone blocks from the native ACL footprints were collected. The primary measurements of the bone microstructure were made using a microtomographic scanner. In late follow-up examinations, a GNRB arthrometer was used. Results There was no significant difference in the bone microstructure assessed using micro-CT histomorphometric data according to the blood test results, plain radiographs, age or anthropometric data. There was no difference in the bone volume/total volume ratio or trabecular thickness in the area of the native ACL footprints. Routine preoperative examinations werenot relevant to the quality of the bone microstructure. The elapsed time from an ACL injury to surgery had no relevance to the results of arthrometry. Conclusion The similarities in the microstructure of bone blocks from ACL footprints from the femur and tibia allow the variable use of these blocks to stabilize grafts in the Felmet method. The bone microstructure is not dependent on the time from injury to surgery. Histomorphometric values of the structure of the femoral and tibial ACL footprints have no impact on the long-term stability of the operated knee joint. Trial registration The approval of the Bioethics Committee of the Silesian Medical Chamber in Katowice, Poland (resolution 16/2014) was given for this research.
DOI: 10.1007/s00167-021-06493-z
ISSN: 0942-2056
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