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Evaluation of chondromalacia of the patellofemoral compartment with axial magnetic resonance imaging

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Abstract

Axial magnetic resonance (MR) imaging of the patellofemoral compartment was performed in 75 patients with arthroscopic correlation. Proton density and T2 (2500/20/80) weighted images were obtained in all patients. Chondromalacia in stages I and II could not be reliably identified with MR imaging. For the evaluation of stage III and IV chondromalacia, the accuracy of MR was 89%. Focal or diffuse areas of increased or decreased signal alterations of the hyaline cartilage without a contour deformity or cartilaginous thinning do not correlate reliably with arthroscopic staging of chondromalacia. A normal signal intensity is no assurance that softening of the cartilage is not present. The most reliable indicators of chondromalacia are focal contour irregularities of the hyaline cartilage and/or thinning of the hyaline cartilage associated with high signal intensity changes within frank defects or contour irregularities with T2-weighted images. The poor MR-arthroscopic correlation in earlier stages of chondromalacia may be due in part to the subjective basis of the arthroscopic diagnosis. In conclusion, stage I and II chondromalacia of the patellofemoral compartment cannot be reliably evaluated with MR imaging. Stage III and IV chondromalacia is reliably evaluated with MR using the combination of proton density and T2-weighted images.

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References

  1. 1.

    Conway WF, Hayes CW, Loughran T, Totty WG, Griffeth LK, et al. (1991) Cross-sectional imaging of the patellofemoral joint and surrounding structures. Radiographics 11:195

  2. 2.

    Gylys-Morin VM, Hajek PC, Sartoris DJ, Resnick D (1987) Articular cartilage defects: detectability in cadaver knees with MR. AJR 148:1153

  3. 3.

    Hayes CW, Sawyer RW, Conway WF (1990) Patellar cartilage lesions: in-vitro detection and staging with MR imaging and pathologic correlation. Radiology 176:479

  4. 4.

    McCauley TR, Kier R, Lynch KJ, Jokl P (1992) Chondromalacia patellae: diagnosis with MR imaging. AJR 158:101

  5. 5.

    Reiser MF, Bongartz G, Erlemann R, et al. (1988) Magnetic resonance in cartilaginous lesions of the knee joint with threedimensional gradient echo imaging. Skeletal Radiol 17:465

  6. 6.

    Shahriaree H (1985) Chondromalacia. Contemp Orthop 11:27

  7. 7.

    Yulish BS, Montanez J, Goodfellow DB, Bryan PJ, Mulopulos GP, Modic MT (1987) Chondromalacia patellae: assessment with MR imaging. Radiology 164:763

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Author information

Correspondence to Thomas R. Brown M.D..

Additional information

Presented to the Radiological Society of North America, Chicago, November 15–30, 1990

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Brown, T.R., Quinn, S.F. Evaluation of chondromalacia of the patellofemoral compartment with axial magnetic resonance imaging. Skeletal Radiol. 22, 325–328 (1993). https://doi.org/10.1007/BF00198391

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Key words

  • Patellofemoral compartment
  • Chondromalacia