Hello,
I totally agree that this patient needs to go have arthroscopic surgery to acertain the extent of the meniscal/pcl injury/joint injury.. No amount of physio is going to affect themeniscus/pcl if they are torn/detached. And pain will limit the strengthening this person will be able to do with physio. Ive had bilateral menisectomys/knee surgery and am a physio so I know how frustrating it can be...both for therapist and patient.The surgeon needs to sort out the anatomical stuff first. Treat the cause and then rehab this persons knee.