I tore my ACL about 4 months prior to what I assumed might be my last year of football at 25 years old (now 48). Clean, complete, ACL tear. No meniscus damage, etc. I was a 6’2” 258lb fullback that intended to come back for that following season. There would be some pretty good force applied to the graft after given my size and position.
There were 3 choices at the time
Allograft
1. my own patellar tendon and patella/tibia
2. my own hamstring
Autograft
1. cadavaric (donated) tissue derived from an Achilles tendon
procedures
Patellar - takes 1/3rd or the patellar tendon and the attached tips/chunks of the patella and tibia at each end of the tendon.
Hamstring - takes the patients own thin strip of hamstring and quadruples it and sews it all together to make a new “acl”
Cadaver tissue - takes the donated human Achilles and folds it over itself a bunch of times and sees it together to make the new acl.
Pros
Patellar - quickest recovery. Bone to bone healing is super fast.
Hamstring - medium recovery to to fresh tissue but not as fast as bone to bone. You’re basically asking muscle to attach to bone.
Cadaver - slowest recovery due to it being “dead tissue” that my body would need to grow into.
Cons
Patellar - you weaken the knee structure by removing 1/3rd or the patellar tendon. You are now asking 2/3rds of a tendon to support the torque of what a full tendon was supposed to do over the lifetime of the patient. If it ruptures you have to start all over and have a less stable knee.
Hamstring - the hamstring is one of the muscles that helps keep the tibia from sliding forward (the main job the acl does. By stripping a little hamstring, is it less stable? By how much?
Cadaver - slower healing. Greater rupture/reinjury rates by about 10%.
What I did….
I chose cadaver. Didn’t want to weaken my own knee Structure. And figured if it worked i was golden. If I blew it out again I’d just get another cadaver graft and be done with football.
Outcome
Had the surgery. Literally minimal pain. Didn’t take a single Percocet (they gave me 50) when they sent me home. Came back and played my first game 5 months post surgery. Our trainer was also the Milwaukee Bucks Trainer and wrapped my leg prior to ever practice and game. Could barely bend it and get into my stance in the first quarter but was good to go. First play down in Louisville I got submarined (picture helmet to lower legs to take me out) by a LB trying to create a pile in the gap and everything held up fine.
Fast forward 20+ years and it feels great. As good or normal as the other. Glad I got lucky and made it though the season. Feel very fortunate to feel great now.
That was my story and rationale. Good luck with your decision and outcome.