The minimum time it takes for a fractured ankle to heal is about six weeks, according to OrthoInfo. A doctor orders X-rays to get a more accurate time frame and monitor the healing bones.
The American Academy of Orthopaedic Surgeons recommends that tests be done to see the extent of the fracture and damage to the surrounding ligaments, explains OrthoInfo. Some of the tests that are done to see these injuries include X-rays, stress tests, CT scans and MRI scans. If the bone is not out of place or only slightly out of place, a short-leg cast or brace is placed on the leg for six weeks, with frequent doctor visits to check to see if the leg is healing properly.