1、1会计学distalradiusfracture桡骨远端骨折桡骨远端骨折Age Peaks at ages 5-14 years and at ages 60-69 years.Young patients intra-articular Elderly patients extra-articularGender Postmenopausal women,female-to-male ratio 4:1 Adolescent boys and girls,the ratio is 3:1volar radial tuberosity lunate facet buttressPQ=Prona
2、tor Quadratus Line,or PQ LineWS=Watershed Line,X=Volar Radial TuberosityVR=Volar Radial Ridge Biomechanics DIC=dorsal intercarpal ligament DRC=dorsal radiocarpal ligament0.9mm 正面切线位（11）侧面切线位（21）标准侧位关节面切线位关节面切线位CTArthroscopya classic Colles fractureSir Abraham Colles Fracture(1814)Robert William Smit
3、h(1807-1873)woodcut from Smiths original descriptionJohn Rhea Barton(1794-1871)Bartons Fracture(1838)The absence of ligamentous attachments to the depressed fragment precludes reduction.In high energy trauma,one component of an unstable displaced fracture the axial load through the lunate creates an
4、 impact fracture on the lunate facetA case report a1a2This is a high energy styloid fracture with carpal subluxation.Type I:bendingType II:ShearingType III:CompressionType IV:avulsion,including radiocarpal injuriesType V:combined,high energy fracturesAO (1987)type C complete intra-articularThere is
5、no consensus on the management of theses fractures But definitions seem unclear in many papers.This might be the reason of discrepancyFunctional EvaluationAll screws are past the dorsal cortex and into the tendons,but none will be seen as too long on a lateral x-ray.Pain was persistent and disabling
6、The patient is a 79 years old who had a distal radius fracture which was treated with an volar plateIntraoperative view with the screw tip impinging on the posterior interosseous nerveAnother intraoperative view with a better view of the screw tip.PA facet view Tilt to 11 Facet lateral view tilt to
7、21True lateral viewThanks for Your Attentionvolar radial tuberosity lunate facet buttressa classic Colles fractureSir Abraham Colles Fracture(1814)John Rhea Barton(1794-1871)Bartons Fracture(1838)Pain was persistent and disablingThe patient is a 79 years old who had a distal radius fracture which was treated with an volar plate
