ACL surgery · Months 3 to 6
ACL Surgery Recovery, 3 to 6 Months: Running, What’s Normal
Your PT says a treadmill jog might be next. Your first thought isn’t running. It’s whether that means you can climb the ladder at work.
Around month 3 is when the first jog usually comes up, as a time to ask, not a green light. A jog tests straight-line impact, not ladders or twisting, and one NHS leaflet says to avoid twisting and kneeling for the first 4 to 6 months.
What’s normal now
- Month 3 is when the jog usually comes up. It’s a time to ask, not a green light. Source
- A good jog says your knee can take straight-line impact. Ask your PT which test stands for each job you do. Source
- One NHS leaflet says to avoid twisting and kneeling for the first 4 to 6 months. Source
- With very heavy duties, or work needing agility on uneven ground, full duty may take 4 months or more. Source
- Kneeling puts pressure on the most-operated-on patch of your knee. Expect it to lag. Source
What usually comes next
Questions to bring to your surgeon or PT
Don’t wait for your next visit
- A loud pop or popping feeling, then the knee gives out, swells fast or loses motion. Source
- A knee that locks, gives way, clicks painfully, or can’t take your weight. Source
- A knee that is badly swollen or has changed shape. Source
- A fever or chills with redness or heat around the knee. Source
- Pain or swelling in one calf or thigh. A clot can show up weeks after surgery; with chest pain or shortness of breath, call 911. Source
Chest pain or trouble breathing: call 911.
Questions men ask at this stage
- When can you start running after ACL surgery?
- Patient guides cluster around month 3. New Zealand’s ACL registry says jogging comes after 3 months in general terms. Source
- If I can jog after ACL surgery, can I climb ladders?
- Not necessarily. A jog is straight-line running on flat ground. Ladders, step-downs, uneven ground and pivoting ask for single-leg control, landing and twisting. Source
- What if my knee hurts or swells after a run?
- One review’s rule: if pain goes up or swelling is more than a trace, stop running for 2 days, cross-train, then restart one step back. Source
Read next for this stage
Education only, not medical advice. Your surgeon’s plan comes first. Every point on this page comes from an After the Scope guide; each “Source” link opens the guide with its full references.