ISAKOS: 2019 Congress in Cancun, Mexico

2019 ISAKOS Biennial Congress ePoster #1007


Clinical Results Were Not Age-Dependent Following Pullout Fixation for Medial Meniscus Posterior Root Tears

Kyu Sung Chung, MD, PhD, Prof., Seoul KOREA, REPUBLIC OF
Yoon-Seok Kim, MD, Seoul KOREA, REPUBLIC OF
Inkeun Park, MD, Seoul KOREA, REPUBLIC OF
Ho-Jong Ra, MD, PhD, Gangneung, Gangwon KOREA, REPUBLIC OF
Dhong-Won Lee, MD, Seoul KOREA, REPUBLIC OF
Jin-Goo Kim, MD, PhD, Goynag-Si, Gyeonggi-do KOREA, REPUBLIC OF

Department of Orthopaedic Surgery, Seoul Paik Hospital, Inje University, Seoul, KOREA, REPUBLIC OF

FDA Status Cleared


Age may not be a critical factor to consider when applying fixation in medial meniscus posterior root tears.



This study investigated the outcomes of pullout fixation for medial meniscus posterior root tears (MMPRTs) in patients=60 years old versus patients>60 years old. It was hypothesized that older patients would demonstrate results comparable with those of younger patients.


Patients with pullout fixation who were followed up for more than five years were included. Patients were categorized into two groups based on age (group A, =60 years; group B, >60 years). The Lysholm score, Kellgren-Lawrence (K-L, 0/1/2/3/4) grade, and medial joint space width were evaluated retrospectively. Preoperative results were compared with the final results in each group, which were compared between groups.


Twenty-five patients in group A (mean age, 54.7±3.8 years) and 22 patients in group B (mean age, 65.6±4.4 years) were recruited. The mean follow-up duration was 70.9 months. The Lysholm score (group A, 53.0±9.1 to 86.0±12.1, P<0.001; group B, 51.1±7.1 to 82.9±9.7, P<0.001) improved significantly. However, the joint space width (group A, 4.7±1.1 to 3.9±1.1 mm, P<0.001; group B, 4.7±0.9 to 3.8±0.9 mm, P<0.001) and K-L grade (group A, 3/17/5/0/0 to 0/7/11/7/0, P<0.001; group B, 2/14/6/0/0 to 0/3/14/5/0, P<0.001) worsened significantly. No significant differences between groups were observed in final outcomes, including Lysholm score (n.s.), K-L grade (n.s.), and joint space narrowing (n.s.). No case with converstion to total knee arthroplasty was observed.


MMPRT fixation did not prevent the progression of arthrosis completely. However, clinical outcomes were not age dependent. Thus, age may not be a critical factor to consider when applying fixation.