Knee

Knee Surgery, Sports Traumatology, Arthroscopy

, Volume 20, Issue 5, pp 970-978

First online:

Patellofemoral and tibiofemoral articular cartilage and subchondral bone health following arthroscopic partial medial meniscectomy

  • Yuanyuan WangAffiliated withDepartment of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University
  • , Alasdair R. DempseyAffiliated withSchool of Sport Science, Exercise and Health, University of Western AustraliaMusculoskeletal Research Program, Griffith Health Institute, Clinical Science 1 (G02), Griffith UniversitySchool of Physiotherapy and Exercise Science, Griffith University
  • , David G. LloydAffiliated withSchool of Sport Science, Exercise and Health, University of Western AustraliaMusculoskeletal Research Program, Griffith Health Institute, Clinical Science 1 (G02), Griffith UniversitySchool of Physiotherapy and Exercise Science, Griffith University Email author 
  • , Peter M. MillsAffiliated withSchool of Sport Science, Exercise and Health, University of Western AustraliaMusculoskeletal Research Program, Griffith Health Institute, Clinical Science 1 (G02), Griffith UniversitySchool of Physiotherapy and Exercise Science, Griffith University
  • , Tim WrigleyAffiliated withCentre for Health, Exercise and Sports Medicine, School of Physiotherapy, University of Melbourne
  • , Kim L. BennellAffiliated withCentre for Health, Exercise and Sports Medicine, School of Physiotherapy, University of Melbourne
  • , Ben MetcalfAffiliated withCentre for Health, Exercise and Sports Medicine, School of Physiotherapy, University of Melbourne
  • , Fahad HannaAffiliated withDepartment of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University
  • , Flavia M. CicuttiniAffiliated withDepartment of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University

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Abstract

Purpose

To examine articular cartilage and subchondral bone changes in tibiofemoral and patellofemoral joints following partial medial meniscectomy.

Methods

For this cross-sectional study, 158 patients aged 30–55 years, without evidence of knee osteoarthritis at arthroscopic partial medial meniscectomy (APMM), and 38 controls were recruited. MRI was performed once on the operated knee for each subcohort of 3 months, 2 or 4 years post-surgery, and the randomly assigned knee of the controls. Cartilage volume, cartilage defects, and bone size were assessed using validated methods.

Results

Compared with controls, APMM patients had more prevalent cartilage defects in medial tibiofemoral (OR = 3.17, 95%CI 1.24–8.11) and patellofemoral (OR = 13.76, 95%CI 1.52–124.80) compartments, and increased medial tibial plateau bone area (B = 143.8, 95%CI 57.4–230.2). Time from APMM was positively associated with cartilage defect prevalence in medial tibiofemoral (OR = 1.02, 95%CI 1.00–1.03) and patellofemoral (OR = 1.04, 95%CI 1.01–1.07) compartments, and medial tibial plateau area (B = 2.5, 95%CI 0.8–4.3), but negatively associated with lateral tibial cartilage volume (B = −4.9, 95%CI −8.4 to −1.5). The association of APMM and time from APMM with patellar cartilage defects was independent of tibial cartilage volume.

Conclusions

Partial medial meniscectomy is associated with adverse effects on articular cartilage and subchondral bone, which are associated with subsequent osteoarthritis, in both tibiofemoral and patellofemoral compartments.

Level of evidence

III.

Keywords

Meniscectomy Cartilage Subchondral bone Magnetic resonance imaging Osteoarthritis