1.1k likes | 1.54k Views
Recognizing fractures. Dr. Ahmed Refaey. FRCR. Definition. Fracture. Fracture. A disruption in all or part of the cortex of a bone All = complete Part = incomplete. Incomplete fracture. Greenstick fracture fracture through one cortex Torus fracture buckling of the cortex
E N D
Recognizing fractures Dr. Ahmed Refaey FRCR
Definition • Fracture
Fracture A disruption in all or part of the cortex of a bone All= complete Part = incomplete
Incomplete fracture • Greenstick fracture fracture through one cortex • Torus fracture buckling of the cortex ( buckling fracture)
How fractures are described • By the direction of the fracture line • By the relationship of the fragments • By the number of fragments • By relation to the adjacent joint
By the direction of the fracture line - transverse - diagonal or oblique - longitudinal - spiral
Transverse - perpendicular to the long axis of the bone - caused by a force perpendicular to the bone shaft
Diagonal or oblique - caused by a force usually applied in the same direction as the long axis of the bone
Longitudinal - along the longitudinal axis of the bone
Spiral - a twisting fracture caused by a torque injury such as planting the foot in a hole while running
How fractures are described • By the direction of the fracture line • By the relationship of the fragments • By the number of fragments • By relation to the adjacent joint
By the relationship of one fracture fragment to another - displacement - angulation - shortening - rotation * Most fractures display more than one of these abnormalities of position
By convention, abnormalities of position describe the relationship of the distal fracture fragment relative to the proximal fragment
Displacement • The amount of offset of the distal fracture fragment relative to the proximal • There is lateral displacement of the distal femoral fracture fragment in this case
Angulation • The angle away from the normal that the distal fragment makes with the proximal • In this case the distal fragment is angulated medially from the position it would have were it not fractured
Shortening • Overlapping of the ends of the fracture fragments • Shortening is usually described by the number of centimeters of overlap • There is also medial displacement here
Rotation • Almost always involves long bones ( humerus and femur ) • In this case, Knee joint is in AP position ( points forward) , but ankle points lateral
How fractures are described • By the direction of the fracture line • By the relationship of the fragments • By the number of fragments • By the relation to the adjacent joint
By the number of fracture fragments - two fragments : simple - more than two fragments : comminuted
By the relation to the adjacent joint - intra-articular - extra-articular
How fractures are described • By the direction of the fracture line • By the relationship of the fragments • By the number of fragments • By the relation with the adjacent joint
Salter-Harris fracture • Fractures that involve the epiphyseal plate alone or in combination with an adjacent part of the bone • Why is the classification important ? - prognostic value - type I and II do well - type IV and V can develop early fusion of epiphysis and shortening of that bone
Salter-Harris classification • Type I : epiphyseal plate alone • Type II : epiphyseal plate & metaphysis • Type III : epiphyseal plate & epiphysis • Type IV : epiphyseal plate & metaphysis &epiphysis • Type V : crush ( ruined ) fracture of theepiphysealplate
SALTR • S = Slipped growth plate • A = Above (# above growth plate ) • L = Low ( # lower than“below” growthplate) • T = Together ( # of metaphysis+growth plate +epiphysis) • R = Ruined
Salter-Harris classification • Type I - fracture through the epiphyseal plate alone - often difficult to detect without other side for comparison
Salter-Harris classification • Type II - fracture of the epiphyseal plate and metaphysis - most common type of Salter fracture - “corner sign”- small metaphyseal fragment
Salter-Harris classification • Type III - fracture of the epiphyseal plate and the epiphysis
Salter-Harris classification • Type IV : - fracture through the metaphysis, epiphyseal plate and the epiphysis - poorer prognosis “ premature closure of epiphysis “
Common fracture eponymes • Colle’s fracture • Smith’s fracture • Barton’s fracture • Jone’s fracture • Boxer’s fracture • Lover’s fracture
Colle’s fracture - Extra articular fracture of the distal radius with dorsal angulation
Smith’s fracture - extra articular fracture of the distal radius with volar angulation
Barton’s fracture - intra articular fracture of distal radius