Supplementing with essential amino acids (EAA) after total knee replacement may be helpful. Two studies have shown that supplementing with EAA for one week before and two weeks after surgery, patients had less atrophy of their muscle and it improved outcomes.

Check with your doctor to see if these might be beneficial for you.

The two brands I recommend to my patients are:

Thorne - https://amzn.to/3EiFTWA

Pure Encapsulations - https://amzn.to/38JnI0q

The two articles:

Essential amino acid supplementation in patients following total knee arthroplasty by Hans Dreyer in The Journal of Clinical Investigation in 2013

and

Perioperative essential amino acid supplementation suppresses rectus femoris muscle atrophy and accelerates early functional recovery following total knee arthroplasty by Hideki Ueyama in The Bone and Joint Journal 2020

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