1. Arthroscopic partial medial
meniscectomy reduces articular
cartilage volume and increases
medial knee joint load despite
typical knee strength at 2 years
post-surgery
M Hall, KL Bennell, TV Wrigley, FM Cicuttini, B Metcalf, AR
Dempsey, PM Mills, RS Hinman, Wang Y and DG Lloyd
Provided by: Michelle HallProvided by: Michelle Hall

2. Medial knee joint loading
• Greater bilateral medial
loading in APM* group
compared with healthy
controls at 3 months post-
surgery remained at 2
years
• No difference in joint
loading changes over time
between the APM group
and control group -1
0
1
2
3
4
0 50 100AdductionMoment(%BW*Ht)
% Gait Cycle
KAM
impulse
Peak
KAM*
*Arthroscopic partial medial meniscectomy
*Knee adduction moment
Provided by: Michelle HallProvided by: Michelle Hall

3. Cartilage volume
• Isokinetic knee muscle weakness in APM
group evident early post operatively as
compared to controls was resolved by 2
years
• Reduced medial tibial cartilage volume
(3.5%) between 3 months post-APM
surgery and 2 years later
• Generally, the APM knee muscle
strength significantly increased over
time compared to controls
Knee muscle strength
Provided by: Michelle Hall