Data Trace Editor – Criteria for Unstable Frx: – Neurologic deficit; – Posterior Element Injuries; – Loss of more than 50% of anterior vertebral body height; – Greater than 25 to 35 deg of kyphosis; – Thoracolumbar burst frx: – angulation of thoracolumbar … Read more
– See: Radiographic Imaging – Discussion: – unstable scaphoid fractures not only impact the potential for healing with non operative treatment, but they also impact on the position of healing (and possible scaphoid non union or malunion); – indicators of instability: – trans-scaphoid perilunate dislocation; … Read more
– Displaced Extra-Articular Fractures – Spiral oblique of Proximal Phalanx: – is inherently unstable, and requires internal fixation – reduction can be obtained – attempt 2 or 3 K wires; – Transverse Frx at Neck of Proximal Phalanx: – common in children – “Booby – trap – fracture” – angulation is between 60 and 90 … Read more
– See: Radiographic Findings – Unstable Frx Patterns: – Barton’s frx, Radial-styloid frx, and Smith’s frx, will often be unstable; – dorsal angulation: > initial 20 deg implies instability; – radial shortening of 5 mm or more; – articular frxs that involve radiocarpal joint; … Read more
– Discussion: – length & alignment are restored by use of femoral distractor in saggital plane, w/o need for fracture table; – this permits hip and knee to be flexed on the table during nailing; – the distractor may be particularly suited to poly trauma patients; – disadvantage … Read more
– Discussion: – unicompartmental arthroplasty serves a specific nitch for knees that are too severe for arthroscopic management of medial DJD (see mosaicplasty) but are not severe enough for total knee replacement; – best indications: – UKR for patients with partial thickness cartilage loss in the affected compartment. – The implications of damage to the lateral … Read more
– Definition: – displacement of less than 2 mm; – no increase in minimal degree of separation of 90 deg flexion of elbow; – usually frx gaps dorsally, and some separation of fragments occurs, which leads to joint incongruity; – dorsal gapping w/ displacement of … Read more
– See: – Facet Joint Injuries – Hyperflexion Injuries – Oblique projections; – Pillar View – Discussion: – simple unilateral facet dislocation is often a stable injury, eventhough there is disruption of the posterior ligament complex (involved joint capsule, posterior longitudinal ligament, … Read more
– Discussion: – unilateral bar is a common disorder and is likely to progress; – it is caused by failure of segmentation of posterior elements of two or more vertebrae on one side; – this anomaly carries a predictable poor prognosis & therefore a patient w/ this anomaly should … Read more
– Type I: extra articular, undisplaced; – Type II: extra articular, displaced; – Type III intra articular, undisplaced; – Type IV: intra articular, displaced Intra-articular fractures of the distal end of the radius in young adults.