Sprain or fracture in leg. Advice sir!

Hi doctor.. I had slipped 2 days ago and a sprain or injury occurred in my left leg ankle (outer side or lateral side) alongwith pain and inflammation. X ray was done. Ortho doctor examined the x- ray film ( bcoz  x- ray report was not ready at that time) and told may be possible that a fracture in lateral malleolus part and a temporary plaster fixed  for 7 days and told after 7 days there will be permanent plaster for 4 week. Sir, I received an X-ray report in which no fracture mentioned. X- ray report and the film is attached. I want to know if there is a need for permanent plaster, if no fracture occurs. The doctor fixed temporary plaster in order and there is not a delay in the right treatment. Pls guide and advice sir