Your symptoms suggest disuse muscular atrophy. With Painful limping, you must be having difficulty performing daily routine work.
Next Steps
Plan for arthroscopic ACL reconstruction.
Arthroscopy is latest and minimally procedure which is quick and effective.
It is performed under regional anaesthesia which is safe in many patients.
Consult your Anaesthesist for the type of anaesthesia and Surgeon for Surgery.
Health Tips
motivate yourself and prepare your body for the surgery.
Do not neglect your knee.