Anatomy and function
This bundle of the ACL is tight in flexion and primarily controls anterior tibial translation.
Anteromedial (AM) bundle
Percentage of ACL injuries that occur without direct contact.
approx 80%
True or false Typical timeframe for return to sport after ACL reconstruction is 6-7 months
False: 8-10 months
True or False: The ACL resists posterior translation of the tibia.
Type of movement pattern described as knee collapse inward.
Valgus collapse
Quadriceps lag definition.
Inability to fully extend the knee due to delayed or weak quadriceps activation.
What ligament works together with the ACL to provide overall knee stability during movement?
Posterior cruciate ligament (PCL)
What type of ACL injury results from a blow to the lateral side of the knee, causing valgus?
Direct contact ACL injury
Example of an isometric exercise used early post-op.
Quad sets, hamstring sets
Insertion point of the ACL.
medial tibial eminence
Effect of landing with minimal knee flexion or flat-foot contact on ACL strain.
- reduce shock absorption
- increases ground reaction force to the knee
Name one aspect of the criteria to progress from phase 1 to phase 2.
Passive knee extension: 0°
Passive knee flexion: >125°
Effusion: -1+ on stroke test
Quadriceps lag: 0–5°
- Resist anterior translation
- control rotational loads during dynamic movements
What grade of ACL tear is characterised by marked instability, and no firm end point?
Grade 3
A client presents with full knee extension, 120° flexion, mild effusion (+1 stroke test), and can perform 10 single-leg bridges on each leg. Would they likely progress to the next phase 2 of rehab?
No — knee flexion should exceed 125°, and swelling (effusion) must be minimal or fully resolved.