2023 ISAKOS Biennial Congress ePoster
Clinical Outcomes Of Lateral Meniscus Posterior Root Repair In The Acl-Reconstructed Knees
Lika Dzidzishvili, MD, PhD, Barcelona SPAIN
Irene Isabel López-Torres, MD, PhD, Madrid SPAIN
David Sáez, MD, Madrid SPAIN
Antonio Hernández Diez, MD, Madrid SPAIN
Emilio Calvo, MD, PhD, MBA, Madrid SPAIN
Hospital Universitario Fundación Jiménez Díaz, Madrid, Madrid, SPAIN
FDA Status Not Applicable
Summary
Satisfactory midterm clinical and radiological outcomes with no re-tears and progression to knee OA have been observed after simultaneous repair of lateral meniscus posterior root and ACL tear.
ePosters will be available shortly before Congress
Abstract
Background
The combination of lateral meniscus posterior root (LMPR) and anterior cruciate ligament tear is commonly seen in clinical practice. Biomechanical studies have demonstrated the importance of meniscal root repair as it provides secondary stability to the ACL during pivot shift loading. On the other hand, meniscal tears repaired at the time of ACL reconstruction have demonstrated improved outcomes when compared with those repaired in isolation. It has been theorized that the reason behind these improved outcomes relates to a favorable healing environment created by biological augmentation of the repair from the intra-articular release of the bone marrow when drilling the ACL tunnels. However, no clinical outcomes to date have been reported.
The purpose of the study was to evaluate clinical and radiological outcomes of LMPR repair in the ACL-reconstructed knee
Methods
Between 2016 and 2018, 17 patients with LMPR and ACL tear who had been followed up for at least 2 years were evaluated. Primary clinical outcomes at a minimum of 29.4 (SD ± 5.5) months postoperatively included Knee injury and Osteoarthritis Outcome Score (KOOS) and Lysholm Knee Questionnare (LKQ). Radiographic assessment of the knee was performed to determine osteoarthritis severity using the Kellgren-Lawrence (KL) grading system. In addition, pre and postoperative MRI scans, and intraoperative arthroscopic findings were documented.
Results
There were 13 male patients (76.5%) and 4 female (23.5%) with a mean age of 32.1 (SD ± 9.9). Left knee was involved in 11 cases (64.7%) and right in 6 (35.3%). In all cases tears were traumatic. According to LaPrade classification system 2 patients (11.8%) presented type 2 tear, 6 (35.3%) type 3, and 9 (52.9%) type 5.
Postoperatively the mean Lysholm score was set at 91.6 ± 9.8 and total KOOS score at 82.9 ± 11.3. No significant radiological progression of arthritic changes was observed postoperatively using KL score (P=346). None of the patients referred postoperative knee instability during daily activities and no re-tear was observed on MRI at the final follow-up. Regarding postoperative MRI findings 2 patients (11.8%) presented meniscal extrusion, and only 1 case (5.9%) of osteochondral defect was documented postoperatively.
Conclusion
Satisfactory midterm clinical and radiological outcomes with no re-tears and progression to knee osteoarthritis have been observed after concomitant repair of lateral meniscus posterior root and ACL tear.