In situations where projectional radiography alone is insufficient, Computed Tomography (CT) or Magnetic Resonance Imaging (MRI) may be indicated. Classification
In orthopedic medicine, fractures are classified in various ways. Historically they are named after the physician who first described the fracture conditions, however, there are more systematic classifications as well.They may be divided into stable versus unstable depending on the likelihood that they may shift further. Mechanism
Traumatic fracture – a fracture due to sustained trauma. e.g., fractures caused by a fall, road traffic accident, fight, etc. Pathologic fracture – a fracture through a bone that has been made weak by some underlying disease is called pathological fracture. e.g., a fracture through a bone weakened by metastasis. Osteoporosis is the most common cause of pathological fracture. Periprosthetic fracture – a fracture at the point of mechanical weakness at the end of an implant

Soft-tissue involvement
Closed/simple fractures are those in which the overlying skin is intact
Open/compound fractures involve wounds that communicate with the fracture, or where fracture hematoma is exposed, and may thus expose bone to contamination. Open injuries carry a higher risk of infection. Reports indicate an incidence of infection after internal fixation of closed fracture of 1-2%, rising to 30% in open fractures.Clean fracture
Contaminated fracture

Displacement
Non-displaced
Displaced
Translated, or ad latus, with sideways displacement.
A device called a Suzuki frame may be used in cases of deep, complex intra-articular digit fractures. By allowing only limited movement, immobilization helps preserve anatomical alignment while enabling callus formation, toward the target of achieving union. Splinting results in the same outcome as casting in children who have a distal radius fracture with little shifting. Surgery
Surgical methods of treating fractures have their own risks and benefits, but usually, surgery is performed only if conservative treatment has failed, is very likely to fail, or is likely to result in a poor functional outcome. With some fractures such as hip fractures (usually caused by osteoporosis), surgery is offered routinely because non-operative treatment results in prolonged immobilisation, which commonly results in complications including chest infections, pressure sores, deconditioning, deep vein thrombosis (DVT), and pulmonary embolism, which are more dangerous than surgery. When a joint surface is damaged by a fracture, surgery is also commonly recommended to make an accurate anatomical reduction and restore the smoothness of the joint. Infection is especially dangerous in bones, due to the recrudescent nature of bone infections. Bone tissue is predominantly extracellular matrix, rather than living cells, and the few blood vessels needed to support this low metabolism are only able to bring a limited number of immune cells to an injury to fight infection. For this reason, open fractures and osteotomies call for very careful antiseptic procedures and prophylactic use of antibiotics. Occasionally, bone grafting is used to treat a fracture.Sometimes bones are reinforced with metal.