Hello,
As I understand from the history there is a lack of muscle balance and muscle strength post the surgical procedure. It would have been good if you had taken a fill THR program. Well they say, its never late. As you are having less confidence in walking this is a common thing in most people who have underwent THR. Now since you have a hip joint replaced the joint proprioceptive system is fused out. I mean to say, every joint in the human body has joint receptors and these receptors tell the brain the joint position to keep it and stable too.
Now post THR, the joint receptors are not there and the muscle has the complete role to work behind the holding the joint in position.
Now you mentioned you doing find stability I will recommend you to undergo a
physical therapy session of exercises to help stabilize the joint by making the muscle stronger and balances while in action.
Since my 12 years of practice has experienced cases who have similar issues. But exercises they have improved and now can move around easily. We have always made assure we focus on not only behind the knee but even the core and the knee muscles to get maximum output.
In your case, I too feel there is a possibility of getting the desired results which you are expecting.
I will advise you to take it as a challenge and meet up a competitive physical therapist.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Jay Indravadan Patel, Physical Therapist or Physiotherapist