Malunion or irregular union on the fracture segments, specifically in comminuted fractures, is often resulting from rotational problems and should lead to hip pain and gait abnormalities. It could be managed by corrective osteotomy (generating cuts within the bone To alleviate the symptoms and aid regular alignment). The Seinsheimer Classification https://www.theorthopaedicandpainpractice.com/subtrochanteric-fractures-what-is-it-2/