Osteoporotic fracture: This is the most likely diagnosis, especially in elderly patients, as osteoporosis is a common condition that increases the risk of fractures from minor falls, such as falls from a standing position.

Traumatic fracture: A direct result of the fall, where the impact causes a fracture, which could be due to various factors including the surface landed on, the position of the body during the fall, and the overall health and bone density of the individual.
Pathological fracture: This occurs when a bone weakened by an underlying disease or condition, such as cancer or osteomyelitis, fractures with minimal trauma, such as a fall from standing.

Spinal cord injury: Although less common, a fall from standing can potentially lead to spinal cord injuries, especially if the fall involves a significant impact to the spine or if the individual lands in a way that causes spinal compression or injury.
Head injury: Even a fall from standing can result in a head injury, including concussion or more severe traumatic brain injuries, especially if the individual hits their head during the fall.
Internal injuries: Depending on how the individual falls and what they land on, there's a possibility of internal injuries, such as splenic rupture or liver laceration, which can be life-threatening if not promptly diagnosed and treated.

Osteogenesis imperfecta: A genetic disorder characterized by bones that break easily, often with little or no apparent cause. While rare, it could be a consideration in cases where minimal trauma results in fracture.
Bone cysts or tumors: Pre-existing conditions within the bone that could weaken it and make it more susceptible to fractures from minor trauma, such as a fall from standing.