Article

Previous research has shown that patients with anterior cruciate
ligament reconstruction have altered movement patterns in the reconstructed knee
during walking. In the sagittal plane, graft specific changes in knee joint
motion have been reported between hamstring and patellar tendon anterior cruciate
ligament reconstruction grafts. This study examined the secondary planes of
movement during walking in anterior cruciate ligament reconstructed knees to
evaluate the influences of graft type (hamstring or patellar tendon) and control
condition (control group or contralateral knee). METHODS: In 54 participants (18
patellar tendon graft, 18 hamstring graft and 18 controls) varus-valgus and
internal-external rotation was measured during level walking in a gait laboratory
at mean of 10 months after surgery. All patients had undergone primary unilateral
anterior cruciate ligament reconstruction within 12 months of injury. FINDINGS:
For internal-external rotation there was no difference between the graft types
and both patient groups had reduced internal rotation (an external rotation
offset) and reduced internal rotation range when compared to the control group
and contralateral knee. For 31 of 36 patients, internal rotation values were less
than the control group mean. The hamstring group had reduced varus rotation
compared to both the patellar tendon and control groups, but not when compared to
the contralateral knee. INTERPRETATION: The results show that there are
differences in tibial rotation during walking in anterior cruciate ligament
reconstructed knees compared to both the contralateral knee and uninjured control
group. These kinematic alterations may relate to the high incidence of knee
osteoarthritis observed in this population over time. Reduced varus in the
hamstring group may relate to the graft harvest.
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Langue : ANGLAIS