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Doctor insights on: Acl Reconstruction When Will I Be Able To Reach Full Extension

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Dr. Allen Lu
355 doctors shared insights

Acl Reconstruction (Definition)

Because an acl (anterior cruciate ligament) cannot heal itself on its own, an acl is "reconstructed" by placing a graft tendon substitute (from your own or donor cadaver tendon) placed into tunnels made in the original acl position, and fixed in place with screws, buttons, or other fixation device. The body then replaces the cells and structure of the graft over 6-8 months, ...Read more


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I'm 4 weeks out of ACL reconstruction. Should I be able to reach full extension by now?

I'm 4 weeks out of ACL reconstruction. Should I be able to reach full extension by now?

YES!!: Gaining full extension should be the first thing that you work on achieving. Depending on the type of graft you have it may be more difficult to get full extension but it should be your first goal. Range of motion followed by strengthening and sport specific activities is the general course of your recovery. ...Read more

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I'm three weeks out from ACL reconstruction. How long until I should get be able to reach full extension?

I'm three weeks out from ACL reconstruction. How long until I should get be able to reach full extension?

3-4 weeks: Need to gain full extension in 4-6 weeks post acl especially btb graft. Need to have pt get on it imediatly. Use prone hangs, extension board, no pillows under bend of knee. ...Read more

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'm three months out of ACL reconstruction surgery and bi menisci repair , I have only 100 degree of flexion and I haven't got the full extension yet?

'm three months out of ACL reconstruction surgery and bi menisci repair , I have only 100 degree of flexion and I haven't got the full extension yet?

Hopefully that: is better than when you started. Most of the benefits would be there by 3 months, AND, even without having a problem and surgery, people can improve their mobility, strength and flexibility over time with consistent physical activity. Signs of problems would be deformity, swelling, things getting worse not better over time, or signs of infection. ...Read more

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Why is knee extension is difficult after ACL reconstruction?

Swelling or scarring: Acutely after acl reconstruction the knee can be swollen and this could hinder knee extension. Physical therapy is started quickly after surgery to regain extension. It is vitally important to regain knee extension asap or scar tissue can form in the front of the knee. Once this scar tissue forms extension maybe very difficult to obtain and surgery my be required. ...Read more

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Had an ACL surgery 6weeks back. There is still considerable supra patellar swelling. Extension lag is 30 deg. When I can get full extension?

Had an ACL surgery 6weeks back. There is still considerable supra patellar swelling. Extension lag is 30 deg. When I can get full extension?

ACL surgery: Following ACL surgery and bone patellar tendon bone (BPTB) autograft it is not unusual to have post operative swelling from the graft site. I am concerned that you have a 30 degree extension lag and I would consult with your surgeon to ensure that there has been no injury to the patella, patella tendon and that your brace (if you are using one) is not locked in a flexion setting. ...Read more