Ortho Oracle - orthopaedic operative atlas

Type I Transepiphyseal Separation

– Discussion:     – least common pediatric femoral neck frx (about 7%);     – capital femoral epiphysis may stay w/in acetabulum but in 50% of cases the capital fragment is dislocated;     – tends to occur in infants and young children;     – this injury may be the result of a … Read more

Type I Supracondylar Frx of the Humerus

– Discussion:     – undisplaced or minally displaced frx;     – lateral view: anterior humeral line remains intact but a posterior fat pad sign may be present;     – frx may be seen on oblique x-ray;     – treatment:           – treated w/ immobilization in long arm … Read more

Type I Radial Head Fracture

– Discussion:     – fissure or margin sector fracture w/ displacement less than 2 mm;     – type I fractures may be difficult to identify;     – fat pads are intracapsular but extrasynovial;     – anterior fat pad is normally visible anterioir to coronoid fossa;     – posterior fat pad … Read more

Type I: Pilon Frx

– Discussion:     – articular fracture without significant displacement;     – malleolar fractures with large plafond fragments;     – these fragments are usually posterior;     – posteroinferior tibiofibular ligament & deep transverse ligament are attached to the fragment;     – first reduce & fix fibula;           … Read more

Type I FDP Avulsion

– Discussion:     – tendon retracted to the palm, held up by the lumbrical origin     – tendon retracts into palm, severing all blood supply and creating extensive scarring in tendon sheath;     – vincula are ruptured;     – patients are tender in palm, but able to fully flex PIP joint;     – location of … Read more

Type I Epiphyseal Injury: of Proximal Humerus

– Discussion:     – encountered in infants and young children;     – this frx is difficult to diagnose since humeral epiphysis since it is mostly cartilage; – Treatment:     – if arm is shortened and abducted then restore length & alignment by applying longitudinal traction w/ arm in 90 deg of abduction, … Read more

Type I Collagen

– See: Collagen Discussion: – Discussion:     – type I is the major collagen of tendon and bone, but it is also the predominant in lung, skin, dentin, heart valves, fascia, scar tissue, cornea,             and liver;           – type I collagen is essential for the tensile strength of bone; … Read more

Type 2 Dens Frx

– Discussion:     – most common;     – occur thru base of odontoid process & may be caused by either hyper-flexion or hyperextension forces;     – blood supply is often comprimised in a type 2 frx     – type II frx occurs at base of dens, typically, frx plane is transverse; … Read more