Data Trace Editor – See: Total Hip Replacement Menu: – cementless components – cement technique – acetabular component revision – operative considerations for hip dyplasia – protrusio – Discussion: – technical considerations: – in the report by Crites BM, et al (2000), the effect of porosity reduction cementing techniques with respect to radiolucent lines … Read more
– See: Total Hip Replacement Menu: – acetabular component revision: – operative considerations for hip dyplasia – protrusio – reaming technique: – component insertion: – … Read more
– Discussion: – any change in stem positioning represents definite radiologic loosening; – changes include: – pistoning: – medial midstem pivot: – calcar pivot: – subsidence; … Read more
– Femoral Anteversion: – femoral version is defined as the angular difference between axis of femoral neck and transcondylar axis of the knee; – normal values: – on average, femoral anteversion ranges from 30-40 deg at birth and decreases progressively throughout growth to about 15 deg at skeletal maturation; – … Read more
– See: – Burst Frx – Thoracic & Thoracolumbar Spine : – Posterolateral Decompression: – Discussion: – frx at this level are frequently due to relative immobility of thoracic spine compared to the lumbar spine; – upper thoracic spine (T1 … Read more
– Choices for Instrumentation: – Zielke Instrumentation: – used for treatment of rigid or mobile lumbar or thoracolumbar Scoliosis w/ lordosis; – CD instrumentation: – for patients who have a mobile lumbar or thoracolumbar curve; … Read more
– Discussion: – see native acetabular anteversion and femoral anteversion and acetabular component position – general considerations: – simple visualization of length of anterior/posterior walls gives an accurate measure of native anteversion; – references: – Femoral anteversion in THA and its lack of correlation with native acetabular anteversion. – … Read more
– See: Total Hip Replacement Menu / acetabular component revision: – Surgical Technique: – preoperative planning: – acetabular biomechanics: – operative considerations for hip dyplasia – protrusio – types of components: … Read more
– See: – operative considerations for hip dyplasia – acetabular component revision – Discussion: – restoration of the normal hip center in acetabular reconstruction encourages restoration of normal biomechanics; – medial placement: – moving hip center medially improves efficiency of … Read more
– See: Thoracolumbar fractures: – Frx Discussion: – frx in this region are usually the result of hyperflexion, which produces wedge compression of one or more vertebral bodies; – due to the rigidity of the rib cage, most of these fractures are stable; (See Burst Fx) – where kyphosis > … Read more