Sprains and strains are injuries affecting the muscles and ligaments. A sprain is an injury or tear of one or more ligaments that commonly occurs at the wrist, knee, ankle or thumb. A strain is an injury or tears to the muscle. Strains occur commonly in the back and legs.
A bone fracture is a medical condition in which a bone is cracked or broken. It is a break in the continuity of the bone. While many fractures are the result of high-force impact or stress, bone fractures can also occur because of certain medical conditions that weaken the bones, such as osteoporosis.
Complex fractures occur when bones break into several small pieces and the surrounding tissue is severely damaged. They are characterized by intense pain, trauma and possible displacement of bones and adjacent tissues. Complex fractures can occur due to many reasons such as fall from a height and motor vehicle accidents.