What question did this study set out to answer?

To evaluate the accuracy of 45-degree flexion posteroanterior radiographs in detecting knee cartilage degeneration compared to conventional radiographs.

December 1, 1988Journal of Bone and Joint Surgery

The forty-five-degree posteroanterior flexion weight-bearing radiograph of the knee.

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Authors

TRT. D. RosenbergOrthopedic Specialty Hospital LPLonnie E. PaulosIntermountain Healthcare DPDavid R. ParkerVirginia Sea Grant

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Implication

Randomized trial compares 45-degree flexion radiographs to conventional ones, revealing greater accuracy for detecting degeneration in knees.

Key Points

To evaluate the accuracy of 45-degree flexion posteroanterior radiographs in detecting knee cartilage degeneration compared to conventional radiographs.
Compared posteroanterior weight-bearing radiographs at 45 degrees of flexion with conventional radiographs in 55 patients.
Defined major degeneration as narrowing of the cartilage space by 2 millimeters or more.
Assessed sensitivity and specificity of radiographs after surgical treatment for knee lesions.
Posteroanterior radiographs in flexion had significantly greater accuracy (p<0.01) than conventional radiographs.
Achieved 100% specificity with no false-positives and greater sensitivity with fewer false-negatives (p<0.01).
Effectively detected major degeneration compared to intraoperative observations.

Cite This Study

Rosenberg et al. (1988) studied this question.

synapsesocial.com/papers/6a64ace1ebf08ab368f00dfe https://doi.org/10.2106/00004623-198870100-00006

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Implication

Randomized trial compares 45-degree flexion radiographs to conventional ones, revealing greater accuracy for detecting degeneration in knees.

The forty-five-degree posteroanterior flexion weight-bearing radiograph of the knee.

Discussion

Member takes

Implication

Key Points

Cite This Study

The forty-five-degree posteroanterior flexion weight-bearing radiograph of the knee.

Discussion

Member takes

Implication

Key Points

Cite This Study

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