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PHYS THER
Vol. 75, No. 6, June 1995, pp. 569-570
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Letters and Responses

Patellofemoral Alignment


This excerpt was created in the absence of an abstract.

To the Editor:

Although I typically have used measures of patellofemoral alignment in examining patients with patellofemoral pain, I have often wondered whether these measurements were meaningful. Fitzgerald and McClure's study, "Reliability of Measurements Obtained With Four Tests for Patellofemoral Alignment" (February 1995), confirmed my suspicions. Whereas I agree with the general conclusions reached by the authors, I offer three suggestions for improving the analysis and interpretation of their data.

First, the results reported for the medial/lateral displacement test appear to be underestimates. The distribution of paired judgments presented in Table 3 yields a .22 kappa coefficient and 52% agreement, in contrast to the authors' reported .10 kappa value and 44% agreement.

Second, Landis and Koch's1 guidelines for interpreting strength of agreement associated with kappa statistics were misstated....


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Related Article

Reliability of Measurements Obtained With Four Tests for Patellofemoral Alignment
G Kelley Fitzgerald and Philip W McClure
Physical Therapy 1995 75: 84-90. [Abstract] [PDF]





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Copyright © 1995 by the American Physical Therapy Association.