title: [Three-dimensional computed tomography in postoperative evaluation of the knees after anterior cruciate ligament reconstruction].
abstract: This study evaluated the clinical value of three-dimensional computed tomography (3D-CT) images in the knees following arthroscopic anterior cruciate ligament (ACL) reconstruction. Sixty-five consecutive patients underwent arthroscopic ACL reconstruction with single-incision and single-tunnel techniques. Preoperative and postoperative (12 months in between) clinical evaluation were performed using the Lysholm knee score and a KT-1000 arthrometer (side to side). Computed tomography (CT) of the knees was performed in a week after operation in all cases and at mean follow-up of 12 months. All of the clinical evaluation scales performed showed an overall improvement. 3D-CT images can display not only the bone tunnels of the knees including femoral and tibia very distinctly, but also the contour of the reconstructed ACL including adjacent structures. The average femoral tunnel diameter increased significantly (3%) from (9.15 +/- 0.03) mm postoperatively to (9.48 +/- 0.5) mm after 12 months; tibial tunnel increased significantly (12%) from (9.11 +/- 0.09) mm to (10.2 +/- 0.3) mm. There was no statistical difference between tunnel enlargements. So multi-slices spiral CT can evaluate the contour and changes of contour and changes of the knee after ACL reconstruction, which will be helpful in the intraoperative location and postoperative assessment of the knees.
authors.affiliation: Department of Radiology, the First Affiliated Hospital of China Medical University, Shenyang 110001, China.
authors.forename: Xixun
authors.initials: X
authors.lastname: Qi
authors.forename: Liming
authors.initials: L
authors.lastname: Guan
authors.forename: Lei
authors.initials: L
authors.lastname: Guo
authors.forename: Yusen
authors.initials: Y
authors.lastname: Zhu
authors.forename: Songbai
authors.initials: S
authors.lastname: Li
authors.forename: Ke
authors.initials: K
authors.lastname: Xu
mesh_terms: D000328:Adult; D016118:Anterior Cruciate Ligament / Q000000981:diagnostic imaging* / Q000601:surgery; D000070598:Anterior Cruciate Ligament Injuries; D059549:Anterior Cruciate Ligament Reconstruction / Q000379:methods*; D001182:Arthroscopy; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional; D007718:Knee Injuries / Q000000981:diagnostic imaging* / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult