Early integration of a bone plug in the femoral tunnel in rectangular tunnel ACL reconstruction with a bone-patellar tendon-bone graft: a prospective computed tomography analysis
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Tomoyuki Suzuki • Konsei Shino • Shigeto Nakagawa • Ken Nakata • Takehiko Iwahashi • Kazutaka Kinugasa • Hidenori Otsubo • Toshihiko Yamashita
- چاپ و سال / کشور: 2011
Description
Purpose The purpose of this prospective study was to evaluate how early the bone plug was integrated into the rectangular femoral tunnel after anatomical ACL reconstruction using a bone-patellar tendon-bone (BTB) graft via a rectangular tunnel (RT BTB ACL-R). Methods Twenty consecutive patients who had undergone the reconstruction procedure were evaluated by CT scans at 4 and 8 weeks postoperatively. In each scan, 30 slices for multiplanar reconstruction were collected parallel to the long axis of the parallelepiped femoral tunnel and perpendicular to the tendinous plane of the bone plug. Each slice was classified as ‘‘complete,’’ indicating no visible gap between the plug and the tunnel wall or trabecular continuity or ‘‘incomplete,’’ showing a visible gap. Bone plug-tunnel integration was evaluated as ‘‘excellent,’’ ‘‘good,’’ ‘‘fair,’’ or ‘‘poor’’ for[20, 11–20, 5–10, and\4 ‘‘complete’’ slices, respectively. Results In this evaluation, 55% of the patients were rated as ‘‘excellent’’ on the first scan, and 80% were ‘‘excellent’’ on the second scan, showing healing over time. The CT values at the anterior interface between the bone plug and the tunnel wall were also measured on both scans. The mean changes in CT value at 8 weeks were significantly lower than those at 4 weeks. Conclusion This study shows that bone plug-femoral tunnel integration was almost complete by 8 weeks after surgery using RT BTB ACL-R.
Knee Surg Sports Traumatol Arthrosc DOI 10.1007/s00167-011-1481-5 Received: 22 May 2010 / Accepted: 3 March 2011
