ACL rehabilitation is the structured, phased physiotherapy programme that restores knee function after an anterior cruciate ligament injury or ACL reconstruction. Whether you have chosen surgery or a non-operative pathway, the rehabilitation work — not the day of surgery — is what produces the eventual outcome. The knee returns to sport when it is ready by objective criteria, not when a specific calendar week arrives.
At VBJ Physiotherapy, ACL rehabilitation is delivered in phases that overlap and progress at the pace your knee actually earns. The physiotherapist reassesses at each stage and adjusts what you're doing.
Where surgery is planned, a short period of "prehab" is often useful. The aim is to enter surgery with the knee as calm as possible — low swelling, near-full range of motion, active quadriceps and normal gait pattern. Patients who arrive at surgery with a stiff, weak, swollen knee typically have a harder early recovery than those who take a couple of weeks to prepare.
The first phase after ACL reconstruction (or after a non-operative injury settles) focuses on protecting the healing tissue, controlling swelling and pain, restoring range of motion, and reactivating the quadriceps. The specific movements depend on your surgeon's protocol and the graft used.
Once the earliest goals are met, strengthening becomes the main work of rehabilitation. This is often the most under-done part of ACL recovery. A knee that looks fine on the surface but is 30% weaker than the other side is not a knee that is ready to change direction under load. Objective side-to-side strength testing is used to guide progression.
Strength alone does not restore an ACL-injured knee. Neuromuscular control — the ability of the knee to react correctly to unexpected forces — is trained deliberately. This includes balance, single-leg control, landing mechanics, deceleration and change-of-direction quality.
Double-leg to single-leg activity. Straight-line running. Bilateral to unilateral hopping. Planned cutting under control. Sport-specific movements. Each step is progressed when the previous step is being performed well, not when a certain number of weeks has passed.
Return to running is not a checkbox; it is a phase. It typically involves demonstrating adequate strength and pain-free single-leg loading first, then a graded walk-jog progression, and only later continuous running. Trying to run before the knee is ready commonly causes swelling and setbacks.
Return-to-sport clearance is criteria-based rather than calendar-based. The specific criteria depend on the sport and your surgeon's protocol, but usually include:
Different surgeons and different sports use different criteria. Where your surgery was done by the VBJ orthopaedic team, criteria are coordinated with the surgeon. Where surgery was performed elsewhere, we work to your surgeon's stated criteria and coordinate on request.
Age, previous knee condition, associated meniscus or cartilage work at the time of surgery, graft type, general fitness, adherence to the home programme, and sport all influence the pace of rehabilitation. Universal week-by-week timelines are misleading. Your programme is individualised.
ACL surgery reconstructs the ligament. Only rehabilitation restores knee function. Without a structured programme, knees remain weak, stiff or unstable in the way they feel during sport. Physiotherapy is not an add-on to ACL surgery — it is what makes the surgery worth having done.
In addition, please contact your surgeon or the physiotherapy team if you notice new instability episodes, a sensation of the knee giving way, a sudden loss of range that had been improving, or any new locking of the knee.
Return to sport is criteria-based and varies between patients. Symmetry of strength, functional hop performance, sport-specific task quality, confidence and surgeon clearance are all considered. Your surgeon's specific protocol and your progress determine the timeline.
No. Some ACL injuries can be managed non-operatively depending on activity demands, associated injuries and stability. The decision is made after orthopaedic assessment. See our article ACL Tear: Surgery or Physiotherapy? for a considered discussion.
Yes. Bring your operative report, your surgeon's post-operative protocol, and any imaging. We coordinate with your surgeon on request.
Very. Between-session work is where most of the strength and control gains actually happen. Consistency is one of the strongest predictors of outcome.
Small transient swelling with new loads is not always a concern. Persistent, worsening or unprovoked swelling should be assessed — contact the physiotherapy team.
Get a clear plan. The team will confirm your appointment after receiving your enquiry.
No. 65/3, 100 Feet Road, Kanakapura Main Road,
Vajarahalli, Balaji Layout,
Bengaluru, Karnataka 560109
Phone / WhatsApp: 74835 72770
Appointments: Please contact the physiotherapy team for current appointment availability.