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Pullout fixation for medial meniscus posterior root tears: clinical results were not age-dependent, but osteoarthritis progressed

  • Kyu Sung Chung
  • Jeong Ku Ha
  • Ho Jong Ra
  • Han Sung Lee
  • Dhong Won Lee
  • Jung Ho Park
  • Du Han Kim
  • Jin Goo Kim
Knee
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Abstract

Purpose

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.

Methods

Patients with pullout fixation who were followed-up for more than 5 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.

Results

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 operation failure that require total knee arthroplasty was not observed.

Conclusion

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.

Level of evidence

Retrospective case–control study; Level of evidence, IV.

Keywords

Medial meniscus Posterior root tear Pullout fixation Age 

Notes

Funding

All authors have no financial interests, activities, relationships, and affiliations to disclose.

Compliance with ethical standards

Conflict of interest

All authors have no potential conflict of interest.

Ethical approval

Ethical approval was obtained from the institutional review board of our hospital district (IRB no. 2013-06-027-002).

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Copyright information

© European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA) 2018

Authors and Affiliations

  • Kyu Sung Chung
    • 1
  • Jeong Ku Ha
    • 1
  • Ho Jong Ra
    • 2
  • Han Sung Lee
    • 3
  • Dhong Won Lee
    • 4
  • Jung Ho Park
    • 4
  • Du Han Kim
    • 4
  • Jin Goo Kim
    • 4
  1. 1.Department of Orthopedic Surgery and Sports Medical Center and Sports Medical Research Institute, Seoul Paik Hospital, College of MedicineInje UniversitySeoulSouth Korea
  2. 2.Department of Orthopedic Surgery, Gangneung Asan Hospital, College of MedicineUlsan UniversityGangneungSouth Korea
  3. 3.Department of Orthopedic SurgeryHanil General HospitalSeoulSouth Korea
  4. 4.Department of Orthopedic Surgery and Sports Medical CenterKonKuk University Medical CenterSeoulSouth Korea

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