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Bone scan in the patellofemoral pain syndrome

PainSci » bibliography » Hejgaard et al 1987
Tags: patellar pain, knee, running, etiology, diagnosis, arthritis, aging, pain problems, leg, limbs, overuse injury, injury, exercise, self-treatment, treatment, pro

Two articles on PainSci cite Hejgaard 1987: 1. The Complete Guide to Patellofemoral Pain Syndrome2. Patellofemoral Pain Diagnosis with Bone Scan

original abstract Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.

Eighty patients who complained of retropatellar pain underwent evaluation by bone scintigraphy, intraosseous pressure determination, radiography, arthroscopy and physical diagnostic tests. The bone scans showed that 48% of the painful knees had an increased uptake compared with 9% for the normal joints. A highly significant correlation was evident between an increased uptake and established chondromalacia. For the diagnosis of a high pressure patella, radiography was only 7% sensitive (6/88), compared with 44% (39/88) for bone scintigraphy and 78% for the clinical "sustained flexion" test. The positive predictive value of a bone scan for detecting a high pressure patella was 0.72 (39/54). The best predictor was a positive sustained flexion test with a predictive value of 0.85 (69/81).

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