v4.1 Fusion X
Deformity correction aims to restore functional alignment by addressing angulation, translation, rotation, limb length and joint orientation. The CORA, or Centre of Rotation of Angulation, is the key reference point for planning angular correction and helps determine where an osteotomy should be performed. Corrective osteotomies may be opening wedge, closing wedge, dome, transverse, oblique or derotational depending on the deformity and the desired effect on length and alignment. Complex deformities may require multiplanar or gradual correction using external fixation and distraction osteogenesis. Successful treatment depends on accurate deformity analysis, preservation of bone biology, stable fixation and restoration of the overall mechanical axis without creating abnormal joint-line orientation.
A 15-year-old girl presents with a progressive genu valgum deformity. The CORA on her radiographs is identified at the distal femur. What is the most appropriate initial...
What is the primary goal of corrective osteotomy?
In a patient with a leg-length discrepancy due to a previous fracture malunion, what type of osteotomy is most likely to be performed to lengthen the shorter limb?
A 40-year-old male presents with knee pain and varus deformity secondary to osteoarthritis. Which deformity correction technique would best address his condition?
What is the CORA in the context of deformity correction?
In a patient with a complex deformity involving multiple planes, what is the most critical factor in planning the surgical correction?
What is the main consequence of not addressing a significant rotational malalignment in a limb?
A 25-year-old male presents with external tibial torsion. What surgical procedure is most appropriate for correcting this deformity?
Which of the following best describes the concept of gradual correction in complex deformities?
When planning a corrective osteotomy, which factor is least important to consider?