Inflammatory Bowel Diseases

Skip Navigation LinksHome > January 2013 - Volume 19 - Issue 1 > Determination of Bone Age in Pediatric Patients with Crohn's...
Inflammatory Bowel Diseases:
doi: 10.1002/ibd.22979
Original Clinical Articles

Determination of Bone Age in Pediatric Patients with Crohn's Disease Should Become Part of Routine Care

Gupta, Neera MD, MAS*; Lustig, Robert H. MD*; Kohn, Michael A. MD, MPP; Vittinghoff, Eric PhD

Collapse Box


Background: Impaired growth and delayed puberty are common in pediatric Crohn's disease (CD). Bone age (BA) is important for interpretation of statural growth. Our aims were to 1) determine the distribution of BA-Z scores; 2) identify clinical factors associated with BA-Z scores; and 3) compare anthropometric Z scores based on chronological age (CA) (CA-Z) versus BA-Z in pediatric CD.

Methods: CD patients ≤CA 15 in females and 17 years in males were enrolled in a cross-sectional study. BA was determined with left hand/ wrist x-ray. In all, 49 patients (65% male; 84% Caucasian; mean CA 13 years) examined between January 2007 and July 2009 qualified for the study.

Results: Mean BA-Z score was −1.40 ± 1.50 (standard deviation). 41% had BA-Z score < −2.0. Mean BA-Z scores were lower in females (P = 0.02), Caucasians (P = 0.006), Tanner stage 1-3 children (P = 0.004), and patients with colonic disease (P = 0.0006), past corticosteroid exposure (P = 0.01), current azathioprine/6-mercaptopurine treatment (P = 0.003), or lower height (P = 0.006), weight (P < 0.001), or body mass index (BMI) (P = 0.01) CA-Z scores. Mean height, weight, and BMI BA-Z scores were 0.73 units (P < 0.0001), 0.51 units (P < 0.0001), and 0.23 units (P < 0.0001) greater than mean height, weight, and BMI CA-Z scores.

Conclusions: Low BA occurs frequently in CD. Determination of BA should become the standard of care in pediatric CD patients, allowing clinically meaningful interpretation of growth in the context of skeletal maturation, leading to improved treatment recommendations, as growth is a dynamic marker of disease status. Prospective longitudinal studies are required to clarify determinants of BA and patterns of BA advancement in CD.

© Crohn's & Colitis Foundation of America, Inc.

You currently do not have access to this article.

You may need to:

Note: If your society membership provides for full-access to this article, you may need to login on your society’s web site first.


Article Tools


Article Level Metrics

Search for Similar Articles
You may search for similar articles that contain these same keywords or you may modify the keyword list to augment your search.