Knee injury mechanism:
The knee injury mechanism may vary from a varus/valgus/rotational/axial/translational load and be depending on the predominant stressor at the time of the injury a specific or variation of knee ligamentous instability will be present.
Medical clearance by the respective medical professional is critical.
Example:
AAOS guidelines for return to sport after anterior cruciate ligament (ACL) reconstruction:
| ROM | Test |
|
•Knee flexion & extension •Active ROM= non-injured side or =/> standard sports specific norms |
•Measure goniometer knee flexion & extension •Straight leg hasty test |
Knee ROM
| Proprioception | Test |
| Static & dynamic | Stalk stand |
Proprioception on balance mat
| Limb difference | Test |
|
•Analyze limb diameter difference Accept :<5% difference |
Measure thigh circumference: •Under gluteal crease •Mid thigh •Suprapatellar |
| Agility | Test |
| •Compare to pre-injury levels •Assess execution of test |
•Five dot drill •T-drill •Ilionois |
| Strength | Test |
| Dynamic muscle strength & endurance field test |
Vertical jump Broad |
Vertical jump testing
| Test | |
| Speed | 40 m sprint |
| Test | |
| Focus on forward linear power watch abnormality especially favouring of non-injured leg | •Vertical jump •Standing broad jump |
Vertical jump testing
| Isokinetic | Test |
| Accurate analysis with comparative muscle strength analysis with<= 5 % difference between the 2 sides | Isokinetic |
