MRI of patellar tendon anterior cruciate ligament autografts

Twenty-one MR examinations were performed in 15 patients with clinically stable knees after arthroscopic anterior cruciate ligament (ACL) reconstruction with patellar bone-tendon-tibial bone autografts. The postoperative interval ranged from 3 months to 3 years 3 months (average 9.5 months). Proton-...

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Bibliographic Details
Published inJournal of computer assisted tomography Vol. 16; no. 4; p. 604
Main Authors Yamato, M, Yamagishi, T
Format Journal Article
LanguageEnglish
Published United States 01.07.1992
Subjects
Adolescent
Adult
Anterior Cruciate Ligament - pathology
Anterior Cruciate Ligament - surgery
Bone Transplantation
Female
Humans
Knee Joint - pathology
Magnetic Resonance Imaging
Male
Middle Aged
Patella - pathology
Patella - surgery
Tendons - pathology
Tendons - transplantation
Tibia - pathology
Tibia - surgery
Time Factors
Transplantation, Autologous
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Summary:Twenty-one MR examinations were performed in 15 patients with clinically stable knees after arthroscopic anterior cruciate ligament (ACL) reconstruction with patellar bone-tendon-tibial bone autografts. The postoperative interval ranged from 3 months to 3 years 3 months (average 9.5 months). Proton- and T2-weighted sagittal images with axial and oblique sagittal T1-weighted images were obtained. The MR appearance of the autografts was categorized depending on distribution of dark signal band into type 1 (continuous, two patients), type 2 (proximal half, eight patients), type 3 (distal half, two patients), and type 4 (nonvisualization, three patients). There was no change in appearance of the grafts in those who had a second imaging within 1 year postoperatively. We conclude that the normal ACL autograft has a variable appearance and that criteria used in evaluating the native ligament is inadequate to assess the autografts.
ISSN:0363-8715
DOI:10.1097/00004728-199207000-00021