Trimalleolar Fracture consists of breaking both the medial and lateral malleoli and the posterior, bony process of the tibia at the level of the ankle. This is usually a very unstable fracture and typically requires surgical intervention because there is no lateral support to the ankle.
Rehabilitation is very important regardless of how an ankle fracture is classified and treated.
When your doctor allows you to start moving your ankle according to specific protocols due to the severity of the fracture, physical therapy and home exercise programs are very important. Doing your exercises regularly is imperative in order to gain the previous ROM that was there before the injury.
Eventually, your doctor and their protocol will allow you to start doing strengthening exercises. Those exercises could be weight-bearing or non-weight bearing, depending on the healing process and how conservative your doctor may be. It may take several months for the muscles surrounding and supporting your ankle to get strong enough for you to walk normal and to return to your regular activities of daily living.
Your specific fracture determines when you can start putting weight on your ankle. Your doctor will allow you to start putting weight on your ankle when they feel your injury is stable enough to do so.
It is very important to not put weight on your ankle until your doctor says you can. If you put weight on the injured ankle too early, the fracture fragments may move or your surgery may fail and you may have to start over.