FROM MY PT SCHOOL NOTES · MUSCULOSKELETAL · CHAPTER 17
ACL Rehabilitation: What Actually Determines Progression?
The ACL lectures connect injury mechanism, quadriceps activation deficits and rehabilitation progression. Calendar milestones matter, but they do not alone establish sport readiness.
Start with all the procedures
ACL reconstruction may coexist with meniscal, cartilage or other ligament repair. Review the operative report and surgeon-specific constraints before choosing loading, flexion and running progressions.
Address the early priorities
Within permitted limits, assess knee extension/flexion, effusion, quadriceps activation, gait and function. The original material recognizes that ACL injuries may involve more than the ACL and can cause persistent bilateral strength deficits.
Criteria, not one test
Progressive strength and neuromuscular work lead toward running, impact, cutting and sport-specific exposure when appropriate. Assess absolute and relative strength, movement quality, symptoms, readiness and sporting demands. A high limb-symmetry percentage may be misleading if both legs are weak.
Current guidance needs careful interpretation
Aspetar’s 2023 ACL reconstruction guideline proposes return-to-running and return-to-sport criteria within an individualized pathway. The guideline acknowledges that universally validated progression and discharge thresholds are lacking. Interpret symmetry alongside absolute muscle capacity, movement quality, psychological readiness, healing constraints and sport-specific requirements; no single score overrides the treating team’s decision.
Test your clinical reasoning
A player has 90% hop symmetry but low absolute quadriceps strength and fears cutting. Is that full return-to-play clearance?
No. Review absolute capacity, dynamic movement, sport-specific exposure, swelling/pain response and psychological readiness, along with operative constraints. One symmetry number is insufficient.
Original class notes and evidence
Knee ACL Lecture; Knee Seminar ACL; Knee Pathology; Functional Hop Tests. The Aspetar guideline is additional current context and is CC BY-NC; figures/tables were not copied.
This lesson is a reorganized personal PT-school study companion. Modern guidelines are labeled separately. It is not a professional diagnosis, patient-specific treatment plan, universal postoperative protocol, or NPTE-pass guarantee.
