4.1 of 54 Ratings
Technique guides are not considered high yield topics for orthopaedic standardized exams including ABOS, EBOT and RC.
A 66-year-old patient is planning to undergo a right total knee arthroplasty. Figure A demonstrates the preoperative radiograph. Placing the components in a kinematic alignment (compared to neutral mechanical alignment) would result in which of the following?
Increased aseptic loosening
Varus tibial cuts and valgus femoral cuts
Lower rates of patient satisfaction
Increased reoperation rate
Select Answer to see Preferred Response
A 75-year-old female presents with chronic severe and progressively worsening right knee pain. Her symptoms have been present for nearly a decade, and she has failed an appropriate course of conservative management but remains persistently symptomatic. Radiographs are shown in Figures A through C. The patient finally elects to have surgery and receives a posterior-stabilized (PS) total knee arthroplasty (TKA). The surgeon prefers an intramedullary femoral guide, posterior referencing, and an intra-medullary tibial guide. The surgeon should pay special attention to which of the following due to the nature of the deformity and preferred surgical technique?
Angulation of the femoral component
Exposure of the patella and posterolateral corner
Flexion of the femoral component
Rotation of the femoral component
Rotation of the tibial component
Performing an isolated release of the popliteus tendon during a total knee arthroplasty is most appropriate in which of the following scenarios?
Valgus deformity that is tight in extension
Varus deformity that is tight in extension
Valgus deformity that is tight in flexion
Valgus deformity that is tight in both flexion and extension
Varus deformity that is tight in flexion
A 65-year-old woman with painful knee arthritis and the deformity seen in Figure A, is scheduled to undergo a total knee arthroplasty. All the following are risk factors for a post-operative peroneal palsy EXCEPT:
Pre-operative flexion contracture >10 degrees
History of lumbar laminectomy
Valgus deformity of >12 degrees