1、Bennetts Fracture of the ThumbDepartment of Hand Surgery YingChuan GuoLong HospitalChunYan Huang MD2 The fracture described by Edward Hallaran Bennett in 1882, however, is an unstable oblique fracture entering the carpometacarpal joint at about the middle of the articular surfaceDefinition3 Composit
2、ion4 5 Fruction6 Damage mechanismsA Bennetts fracture occurs when the metacarpal bone in the thumb breaks and dislocates at the base of the thumb. This injury occurs when a force is placed on the thumb when it is slightly bent. Bennetts fractures can result from any significant forces placed on the
3、base of the thumb, such as sports, falls and accidents7 TreatmentFresh injuryProblemJoint instabilityYour doctor will evaluate your x-rays to determine the appropriate treatment for the injury. If the joint surface is lined up well, a cast can be used for treatment. If the joint surface is out of po
4、sition, usually surgery will be recommended. At the time of surgery, your doctor will determine if the bones can be held in place with pins placed through the skin. If not, an incision is made to properly align the bone fragments.8 TreatmentChronic injuries Arthrodesis Compared Ligament Reconstruction and Tendon InterpositionThumb Carpometacarpal Osteoarthritis: Arthrodesis Compared with Ligament Reconstruction and Tendon Interposition The Journal of Bone and Joint Surgery (American) 83:1470-1478 (2001)9 畸形愈合伴持续性半脱位可发展为腕掌关节疼痛性关节炎。6周后不应再尝试复位。一旦出现退行性关节炎，应行关节融合术或关节成形术Giachino10 Thank you ！
