Accuracy and precision of joint space width measurements in standard and macroradiographs of osteoarthritic knees

Article Abstract:

Measurements of knee joint space width (JSW) of patients with osteoarthritis (OA) may be more accurate when taken by macroradiography in a semi-flexed position and analyzed by computer. Macroradiography is an enlarged and more focused X-ray technique. Researchers compared the accuracy and reproducibility of routine X-rays and macroradiography by imaging the knees of 25 patients with OA and 10 healthy volunteers (controls) in both standing and semi-bent knee positions. They analyzed the images both by hand and by computer. The analyses done by computer were more accurate than those done by hand in patients with OA but equally accurate in the control group. Repositioning the patients was equally precise for both routine X-ray and macroradiography. However, the JSW measurements taken from the macroradiographs were significantly more accurate than those taken from routine X-rays. The images taken with the knee semi-bent were significantly more accurate than those taken with the knee fully extended.

Research, Joints, Joints (Anatomy), Medical examination, Osteoarthritis, Knee, Radiography, Medical, Medical radiography

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Fatal postoperative airway obstruction in a patient with rheumatoid arthritis

Article Abstract:

Patients with rheumatoid arthritis (RA) requiring ventilation during surgery should be evaluated before surgery for arthritis in the cartilage surrounding the voice box. Risk factors include difficulty breathing and a sore throat. Corrective spinal surgery was successfully performed on a 55-year-old woman with RA. However, swelling developed in the patient's airway when ventilation tubes were removed immediately following surgery preventing the patient from breathing. Efforts to resuscitate the patient were eventually successful. However, she was pronounced brain dead and died three days after surgery.

Causes of, Complications and side effects, Artificial respiration, Mechanical ventilation, Rheumatoid arthritis, Airway obstruction (Medicine), Airway obstruction

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