Abstract
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Summarize sonography’s role in assessing the acromioclavicular (AC) joint space.
Interpret results from statistical data used to determine the normal width of the AC joint space.
Describe anatomic landmarks and function of the AC joint as an integral part of the shoulder girdle.
A limitation noted by the authors in this study was? A. Random participant selection B. Confounding results C. Small sample size D. Statistical data variance
The AC joint articular disk described in the article may begin to undergo age related deterioration during what decade of life? A. 30 years B. 40 years C. 50 years D. 60 years
According to the authors, what percent of traumatic shoulder girdle injuries involve the AC joint? A. 40% B. 19% C. 10% D. 50%
In the pilot study, interobserver reproducibility noted in Table 1 denotes the first measurement of the left AC joint space as _______. A. 0.993 B. 0.877 C. 0.873 D. 0.833
The letter D box plot in Figure 2 of the article demonstrates a graphic distribution of what patient demographic? A. Age B. Height C. Weight D. BMI
What relationship did the data show in Figure 4 between AC joint space and participant height? A. A very strong negative predictive relationship B. A very weak positive predictive relationship C. A very weak negative predictive relationship D. Inconclusive findings for any predictive relationship
What was the average linear transducer frequency used to scan and measure the AC joint space width of the participants in the study? A. 8 MHz B. 6 MHz C. 9 MHz D. 10 MHz