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Year : 2013  |  Volume : 17  |  Issue : 7  |  Page : 181-183

Skeletal manifestations of juvenile hypothyroidism and the impact of treatment on skeletal system

1 Department of Endocrinology, Lala Lajpat Rai Memorial Medical College, Meerut, Uttar Pradesh, India
2 Consultant Radiologist, Department of Radiology, St Thomas Hospital, Changancherry, Kerala, India

Correspondence Address:
Manish Gutch
G 10, Pg Hostel, Lala Lajpat Rai Memorial Medical College, Meerut, Uttar Pradesh 250 004
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2230-8210.119565

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Thyroid hormone mediates growth and development of the skeleton through its direct effects and through its permissive effects on growth hormone. The effect of hypothyroidism on bone is well described in congenital hypothyroidism, but the impact of thyroid hormone deficiency on a growing skeleton, as it happens with juvenile hypothyroidism, is less defined. In addition, the extent to which the skeletal defects of juvenile hypothyroidism revert on the replacement of thyroid hormone is not known. A study was undertaken in 29 juvenile autoimmune hypothyroid patients to study the skeletal manifestations of juvenile hypothyroidism and the impact of treatment of hypothyroidism on the skeletal system of juvenile patients. Hypothyroidism has a profound impact on the skeletal system and delayed bone age, dwarfism, and thickened bands at the metaphyseal ends being the most common findings. Post treatment, skeletal findings like delayed bone age and dwarfism improved significantly, but there were no significant changes in enlargement of sella, presence of wormian bones, epihyseal dysgenesis, vertebral changes and thickened band at the metaphyseal ends. With the treatment of hypothyroidism, there is an exuberant advancement of bone age, the catch up of bone age being approximately double of the chronological age advancement.

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