I am worried about my husband. He had ACL surgery about 3 yrs ago, but has not made a good recovery. His original injury was from kickboxing, which happened maybe 9 years before he had the operation. After the op he went to the recommended number of physiotherapy sessions and did his exercises. However I think that as he had all but given up exercise at the time of the op, and it had fallen by the wayside this has hampered long term recovery?. At the minute he walks completely lop-sided and struggles with balance and stability. His knee is really painful all of the time He struggles to get round the supermarket in one piece. Have you any advice? Thank you