TY - JOUR
T1 - The relationship between patellofemoral and tibiofemoral morphology and gait biomechanics following arthroscopic partial medial meniscectomy
AU - Dempsey, Alasdair R.
AU - Wang, Yuanyuan
AU - Thorlund, Jonas B.
AU - Mills, Peter M.
AU - Wrigley, Tim V.
AU - Bennell, Kim L.
AU - Metcalf, Ben R.
AU - Hanna, Fahad
AU - Cicuttini, Flavia M.
AU - Lloyd, David G.
PY - 2013/1/1
Y1 - 2013/1/1
N2 - Purpose: To examine the relationship between tibiofemoral and patellofemoral joint articular cartilage and subchondral bone in the medial and gait biomechanics following partial medial meniscectomy. Methods: For this cross-sectional study, 122 patients aged 30-55 years, without evidence of knee osteoarthritis at arthroscopic partial medial meniscectomy, underwent gait analysis and MRI on the operated knee once for each sub-cohort of 3 months, 2 years, or 4 years post-surgery. Cartilage volume, cartilage defects, and bone size were assessed from the MRI using validated methods. The 1st peak in the knee adduction moment, knee adduction moment impulse, 1st peak in the knee flexion moment, knee extension range of motion, and the heel strike transient from the vertical ground reaction force trace were identified from the gait data. Results: Increased knee stance phase range of motion was associated with decreased patella cartilage volume (B = -17. 9 (95 % CI -35. 4, -0. 4) p = 0. 045) while knee adduction moment impulse was associated with increased medial tibial plateau area (B = 7. 7 (95 % CI 0. 9, 13. 3) p = 0. 025). A number of other variables approached significance. Conclusions: Knee joint biomechanics exhibited by persons who had undergone arthroscopic partial meniscectomy gait may go some way to explaining the morphological degeneration observed at the patellofemoral and tibiofemoral compartments of the knee as patients progress from surgery. Level of evidence: III.
AB - Purpose: To examine the relationship between tibiofemoral and patellofemoral joint articular cartilage and subchondral bone in the medial and gait biomechanics following partial medial meniscectomy. Methods: For this cross-sectional study, 122 patients aged 30-55 years, without evidence of knee osteoarthritis at arthroscopic partial medial meniscectomy, underwent gait analysis and MRI on the operated knee once for each sub-cohort of 3 months, 2 years, or 4 years post-surgery. Cartilage volume, cartilage defects, and bone size were assessed from the MRI using validated methods. The 1st peak in the knee adduction moment, knee adduction moment impulse, 1st peak in the knee flexion moment, knee extension range of motion, and the heel strike transient from the vertical ground reaction force trace were identified from the gait data. Results: Increased knee stance phase range of motion was associated with decreased patella cartilage volume (B = -17. 9 (95 % CI -35. 4, -0. 4) p = 0. 045) while knee adduction moment impulse was associated with increased medial tibial plateau area (B = 7. 7 (95 % CI 0. 9, 13. 3) p = 0. 025). A number of other variables approached significance. Conclusions: Knee joint biomechanics exhibited by persons who had undergone arthroscopic partial meniscectomy gait may go some way to explaining the morphological degeneration observed at the patellofemoral and tibiofemoral compartments of the knee as patients progress from surgery. Level of evidence: III.
KW - Biomechanics
KW - Gait
KW - Magnetic resonance imaging
KW - Osteoarthritis
UR - http://www.scopus.com/inward/record.url?scp=84876336621&partnerID=8YFLogxK
U2 - 10.1007/s00167-012-2075-6
DO - 10.1007/s00167-012-2075-6
M3 - Article
C2 - 22673794
AN - SCOPUS:84876336621
SN - 0942-2056
VL - 21
SP - 1097
EP - 1103
JO - Knee Surgery, Sports Traumatology, Arthroscopy
JF - Knee Surgery, Sports Traumatology, Arthroscopy
IS - 5
ER -