Common peroneal nerve injury and partial posterior tibial nerve injury knee joint. what treatment should i go for? can simulation help?

Nerve injury recover: Nerves consist of insulation called myelin and fibers which carry signals. If only the myelin has been damaged, usually function will return. If the nerve has been partially severed, some recovery is possible. If the nerve has been completely severed then recovery is not likely. A test called electromyography/nerve conduction study can tell the type of injury and the best treatment.

Physiotherapy: I normally recommend a course of physiotherapy with homework and avoidance of compression for these conditions. A more specific answer may depend on how you acquired these conditions. Good luck!