I have a 'paralysed', dropfoot, are there any other surgery done instead of make all joints stiff, it lockes my knee, can't bend.must lift from hip if do s?

See ortho, neurology: Too complex for this forum. See neurologist, orthopedist and/or neurosurgeon. Physical therapy may help.

Cause?: Local peroneal nerve compression or trauma? Can cause drop foot. Stroke! nevertheless, a foot drop brace can allow good palliative and ambulation for many. Ankle fusion could be an option. Knee surgery is not the usual.