– See: – Proximal Frx – Distal Frx – Rotational Alignment – Deforming Forces: – muscular forces deform the femur after fracture; – abductor muscles: – abducts proximal femur following subtrochanteric & high proximal shaft fractures; – psoas: – proximal 1/3 frx of shaft are also … Read more
– Discussion: – progressive enlargment radiolucent line size on serial radiographs; – radiolucencies between cement & femoral cortex in immediate postop period may be produced by cancellous bone that was not removed; – however, it is impossible to tell whether cancellous bone was not curreted or … Read more
– See: Pediatric Elbow Injuries – Ossification Centers of the Elbow: – C apetellum (appears age 1-2) – R adial Head (appears age 2-4) – I nteranal epicondyle (appears age 4-6) – T rochlea (appears age 8-11) – O lecranon (9-11 years) … Read more
– See: Radiology of Pediatric Elbow – Discussion: – precise AP & Lateral projections are required to evaluate normal anatomic relationships; – there should be no rotation to the forearm; – AP View: – medial and lateral epicondyles and humeral-ulnar/radial articulation; – carrying angle; … Read more
– AP view: – patient is supine with the foot internally rotated 15 deg to obtain best views of the femoral neck; – central beam is directed toward the femoral head; – X-ray tube should be positioned 100 cm from focal plane of film cassette to yield an … Read more
– Cervical Spine – Pelvic Radiology – MRI Discussion – Ossification of Soft Tissue and Periosteum – Pediatric Radiology – Radioisotope Scanning Magnetic Resonance Imaging of the Musculoskeletal System–Symposium: Physical Principles of Magnetic Resonance Imaging. Longitudinal growth and growth-plate activity in the lower extremity. Imaging of the hip joint. Computed tomography versus magnetic resonance imaging.
– See: – Types of Loosening: – Exam for THR Loosening: – Grading of Cement Technique: (Barrack, et al. (1992) and Mulroy, et al. (1995)) – Grade A: meduallary canal completely filled w/ cement (white out). – Grade B: a slight radiolucency exists at the … Read more
– See: PreOp Planning: – Discussion: – a candidate for HTO should have relatively normal lateral and patellofemoral compartments; – degenerative changes confined to medial compartment should be apparent in x-rays, although minor arthritic changes in lateral compartment or patellofemoral joint are not absolute contraindications – HTO is contraindicated w/ lateral compartment or patellofemoral symptoms … Read more
– See: – Technique of Femoral Neck Resection – Femoral Component Offset – Discussion: – some pts have relative coxa vara and a very short distance between the lesser trochanter and the pelvis; – others have a relative coxa valga and a large distance between the lesser … Read more
– Lateral View: – key element is whether there is anterolithesis, since this will dramatically narrow the SAC w/ any degree of rotation; – ADI: – it may be difficult to measure the ADI due to lateral mass rotation; – in children … Read more