7 doctors weighed in:
Why does my butt hurt after a total knee replacement?
7 doctors weighed in

David Miller
Family Medicine
4 doctors agree
In brief: Butt attached to leg
You have likely been compensating for your knee prior to your surgery.
This can throw your pelvis off but you don't notice it because it works. Now that your knee is fixed, you're likely walking more normally so you notice that your pelvis is off and your butt hurts. A good do can apply some omm to re-right your pelvis and help alleviate some of the pain.

In brief: Butt attached to leg
You have likely been compensating for your knee prior to your surgery.
This can throw your pelvis off but you don't notice it because it works. Now that your knee is fixed, you're likely walking more normally so you notice that your pelvis is off and your butt hurts. A good do can apply some omm to re-right your pelvis and help alleviate some of the pain.
David Miller
David Miller
Answer assisted by David Miller, Medical Student
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Dr. Frederick Buechel, jr. md
Orthopedic Surgery
2 doctors agree
In brief: Several possibilitie
A low back strain or disc herniation can cause sciatica symptoms with pain in the butt.
Straight leg raises during rehab can cause this. A hamstring origin muscle strain can do this. From impacting the femoral component onto the end of the femur you can get a femoral neck stress fracture. A hip abductor strain or trochanteric bursitis can develop from a irregular gait pattern right after surgery.

In brief: Several possibilitie
A low back strain or disc herniation can cause sciatica symptoms with pain in the butt.
Straight leg raises during rehab can cause this. A hamstring origin muscle strain can do this. From impacting the femoral component onto the end of the femur you can get a femoral neck stress fracture. A hip abductor strain or trochanteric bursitis can develop from a irregular gait pattern right after surgery.
Dr. Frederick Buechel, jr. md
Dr. Frederick Buechel, jr. md
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Dr. Ario Kiarash
Orthopedic Surgery
In brief: Hip arthritis?
Knee pain may be in part referred from the hip, now they the knee is fixed you may be feeling your hip arthritis which not commonly is felt in the buttock behind the knee if the arthritic part is more posterior. Check with your doctor and have your hip checked, if the hip is ok, then adjustment of the pelvis may be needed!

In brief: Hip arthritis?
Knee pain may be in part referred from the hip, now they the knee is fixed you may be feeling your hip arthritis which not commonly is felt in the buttock behind the knee if the arthritic part is more posterior. Check with your doctor and have your hip checked, if the hip is ok, then adjustment of the pelvis may be needed!
Dr. Ario Kiarash
Dr. Ario Kiarash
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