Jiahao Zhang1, Yong Ma1, Chaonan Pang2, Haijun Wang1, Yanfang Jiang1, Yingfang Ao3. 1. Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, NO. 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China. 2. Department of Radiology, Peking University Third Hospital, NO. 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China. 3. Institute of Sports Medicine, Beijing Key Laboratory of Sports Injuries, Peking University Third Hospital, NO. 49 North Garden Road, Haidian District, Beijing, 100191, People's Republic of China. aoyingfang@163.com.
Abstract
PURPOSE: The purpose of this study was to compare clinical outcomes and graft healing after anterior cruciate ligament (ACL) reconstruction with anteromedial and central femoral tunnel placement. METHODS: During 2016 and 2018, 110 consecutive patients underwent single bundle ACL reconstruction; 85 patients met the inclusion criteria, and each patient underwent 3D-CT within 1 week and MRI 1.5 years after the operation. The central point of the femoral tunnel and signal/noise quotient (SNQ) of three regions of interest (ROI) in the intra-articular graft were measured to analyse the tunnel position and graft healing extent. Clinical assessments, including functional scores, KT-2000 arthrometer measurements and pivot-shift tests, were evaluated at the 2-year follow-up. Patients were divided into two groups depending on the femoral tunnel position: the anteromedial position group (Group A) and the centre position group (Group B). RESULTS: Seventy-one patients were available for the 2-year follow-up and MRI examination: 34 patients in Group A and 35 patients in Group B, and 2 patients were excluded for an eccentric tunnel position. No graft failure occurred, and compared with the preoperative assessment outcomes, the outcomes of both groups improved at the final follow-up. Group A was significantly better than Group B regarding the KT-2000 arthrometer measurements (P = 0.031). No significant differences were observed in terms of functional scores, pivot-shift test results, or the SNQ between groups. CONCLUSIONS: No differences in clinical outcomes or graft healing were found between AM and central femoral tunnel placements in single bundle ACL reconstruction. Therefore, satisfactory clinical outcomes, knee stability and graft healing can be obtained for both femoral tunnel placements. LEVEL OF EVIDENCE: II.
PURPOSE: The purpose of this study was to compare clinical outcomes and graft healing after anterior cruciate ligament (ACL) reconstruction with anteromedial and central femoral tunnel placement. METHODS: During 2016 and 2018, 110 consecutive patients underwent single bundle ACL reconstruction; 85 patients met the inclusion criteria, and each patient underwent 3D-CT within 1 week and MRI 1.5 years after the operation. The central point of the femoral tunnel and signal/noise quotient (SNQ) of three regions of interest (ROI) in the intra-articular graft were measured to analyse the tunnel position and graft healing extent. Clinical assessments, including functional scores, KT-2000 arthrometer measurements and pivot-shift tests, were evaluated at the 2-year follow-up. Patients were divided into two groups depending on the femoral tunnel position: the anteromedial position group (Group A) and the centre position group (Group B). RESULTS: Seventy-one patients were available for the 2-year follow-up and MRI examination: 34 patients in Group A and 35 patients in Group B, and 2 patients were excluded for an eccentric tunnel position. No graft failure occurred, and compared with the preoperative assessment outcomes, the outcomes of both groups improved at the final follow-up. Group A was significantly better than Group B regarding the KT-2000 arthrometer measurements (P = 0.031). No significant differences were observed in terms of functional scores, pivot-shift test results, or the SNQ between groups. CONCLUSIONS: No differences in clinical outcomes or graft healing were found between AM and central femoral tunnel placements in single bundle ACL reconstruction. Therefore, satisfactory clinical outcomes, knee stability and graft healing can be obtained for both femoral tunnel placements. LEVEL OF EVIDENCE: II.
Authors: Alison M Biercevicz; Matthew R Akelman; Paul D Fadale; Michael J Hulstyn; Robert M Shalvoy; Gary J Badger; Glenn A Tung; Heidi L Oksendahl; Braden C Fleming Journal: Am J Sports Med Date: 2014-12-24 Impact factor: 6.202
Authors: Etienne Cavaignac; Vincent Marot; Marie Faruch; Nicolas Reina; Jérôme Murgier; Franck Accadbled; Emilie Berard; Philippe Chiron Journal: Am J Sports Med Date: 2017-10-24 Impact factor: 6.202