Orthopedic questions Flashcards
What fracture configuration is ideal for the use of cerclage wires?
Long oblique
How far apart from the fracture ends should the circlage wires be placed?
0.5cm or more
Name the circlage wiring technique used on short oblique fractures in conjunction with a K-wire
Skewer pin
What does a Salter Harris type III look like
Through the Physis and Epiphysis
What fixation technique would be ideal for treatment of the fracture shown in this radiograph?
Pin and tension band
What two types of Salter Harris fractures might go undiagnosed on initial radiographs?
Type I and V
What type of fixation would be best treatment of a grade IIIA open fracture
External Skeletal fixitor
What determmines the bending strength of a screw?
The inner core diameter
What fractures must always be anatommically reconstructed?
Articular Fractures
Name the condidion that can occur when a young animal’s comminuted femoral fracture is treated with ridgid immobiliation for an extended period of time
Qudracepts Contracture
What is the configuration of the fracture seen in this radiograph?
Spiral
Of the four A’s that are evaluated in the post-op fracture repair radiographs, which term relates to the positioning of the joints?
Alignment
What is the disease process of the bone and what is the specific lesion indicated by the arrow?
Osteomylitis and a sequestrum
In biomechanics, what is the term for the point at which a material transisions from elastic to plastic deformation?
Yield point
Name two DDX for the radiographic lesion seen here
OSA, CSA, FSA Fungal Osteomyelitis, LSA, bone cyst
What antibiotic is the best first choice for treatment of an open fracture?
Cefazolin
What does the acronym “MIPO” stand for?
Minimally invasive plate osteosynthesis
What is the most common complication associated with external skeletal fixation?
Pin tract morbidity/infection/drainage
What percentage of the meduallary canal should filled by a steinman pin if it is the primary means of fixation?
70%
What fixation methods can not be used in the radius?
Interlocking nail and intermedulary pin
When placing cerclage wires how should they be positioned in reference to the long axis of the bone?
Perpendicular
After achieving compression of short oblique fracture using a lag screw; you also place a plate to protect the compression and aposition achieved lag screw. What plating mode is demonstrated in this example?
Neutralization Plating
