Optimizing Anterior Cruciate Ligament Replacement by using Numerical Musculoskeletal Model

Optimizing Anterior Cruciate Ligament Replacement by using Numerical Musculoskeletal Model - Optimizing ACL replacement by using numerical Musculoskeletal model

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

NL-OMON

Registry ID

NL-OMON36009

Enrollment

Registered

2011-09-29

Start date

2011-10-17

Completion date

Unknown

Last updated

2024-05-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy subjects We study healthy subjects

Interventions

None listed

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: The healthy subjects should be able to do the walking hopping task without any help or trouble. Age range should be between 18- 55 years.

Exclusion criteria

Exclusion criteria: Subject is not eligible if she/he meets one or more of the following criteria: ;(a) Claustrophobic subject will be erased from the list (for MRI scanning) (b) Current pain in the knee or other lower limb parts that can cause abnormal walking, hopping and side jumping. (c) Past lower limb trauma that has caused current imbalance in walking and hopping (d) Current neurological and metabolic disorders that have effect on lower limb function (diagnosed by sports physician) (e) Current inflammatory arthritis of foot, ankle, knee, hip and back (diagnosed by sports physician) (f) Lack of normal lower extremity function that interferes with normal walking, hopping and side jumping (diagnosed by sports physician)

Design outcomes

Primary

Measure	Time frame
From MRI measurement: a. The length and the elongation of all 4 ligaments during several flexion position and maximal tibial rotation while the knee is in 90o flexion b. The contact points of both femoral condyles and tibia plateau c. The attachment position of every ligament (origin and insertion) d. The geometric data of the knee bone, such as the widht of femoral condyle, tibia plateau, varus valgus knee angle, the orientation of contact point between articular cartilage and meniscus. From Vicon measurement: a. Kinematics of relevant body segments b. EMG analog data of muscle activity, onset and off set of muscle activity and muscle activity pattern.	—

Measure

Time frame

From MRI measurement: a. The length and the elongation of all 4 ligaments during several flexion position and maximal tibial rotation while the knee is in 90o flexion b. The contact points of both femoral condyles and tibia plateau c. The attachment position of every ligament (origin and insertion) d. The geometric data of the knee bone, such as the widht of femoral condyle, tibia plateau, varus valgus knee angle, the orientation of contact point between articular cartilage and meniscus. From Vicon measurement: a. Kinematics of relevant body segments b. EMG analog data of muscle activity, onset and off set of muscle activity and muscle activity pattern.

—

Secondary

Measure	Time frame
From MRI measurement: a. The relationship of the length of ACL, PCL, MCL and LCL in different angle position during flexion and maximal tibia rotation at 90o knee flexion	—

Countries

Netherlands

Outcome results