hi,
thank you for providing the brief history of you.
A thorough neuro-muscular assessment is advised.
As mentioned you had undergone the TKR almost a year back, did you perform any physical exercises to get the optimum results of the post TKR? usually all
joint replacement surgeries are successful, but the post TKR
rehabilitation is not followed properly and later stages there is issues.
Also,since you mentioned you have pain in the calf muscle and you cannot apply weight, first thing to do is to take an x ray of knee and see if the prosthosis is intact. as in 99% of cases they are intact.
performing clinical test like - SLR will help guide further. as you already have a TKR, there will be a changes in the gait mechanism and the abnormality in the spine due to abnormal weight bearing on either side. Like if you had TKR on right then the left has more load and vice versa.
Now TKR was performed due to pain in knee joint due to
Osteoarthritis and reduced joint space. So it can be possible you have the OA knee from atleast 5 years ? This 5 years have changes the biomechanics of the weight bearing joints and may be tilting of the pelvic.
Now to not go much deeper into the technical aspect of the situation, i will advice you to take an MRI of the
lumbar spine to see any
soft tissue abnormality. If the test comes positive the treatment will be guided for the same - rest, medication and
physical therapy.
So mention little brief here - that there is change in the anatomy of the spine due to OA knee and the symptoms arise before or after surgery. This is my personal clinical experience with patients. So when TKR is performed in our clinical practice we strengthen not only the muscles of the knee but also the core, spine,
pelvic floor and whole lower limbs on each side. As we believe in our clinic that body functions as a single unit and disturbance in the unit may lead to symptoms at later stages.
Our TKR cases in clinical setting are 100% success without any aches and pains for years.
I recommend you to undergo an MRI of the lumbar spine and under go physical therapy later. I am sure you will be 100% fit and back to life.
Regards
Jay Indravadan Patel