Hyperostosis around the bilateral acetabulum associated with hypoparathyroidism.

Area of Science:

• Orthopedics
• Endocrinology
• Radiology

Background:

• Secondary hypoparathyroidism is a condition characterized by insufficient parathyroid hormone production, often linked to chronic kidney disease or vitamin D deficiency.
• Untreated hypoparathyroidism can lead to metabolic bone abnormalities, including altered bone mineralization and remodeling.
• Acetabular hyperostosis, or excessive bone formation around the hip socket, is an uncommon manifestation.

Observation:

• A 57-year-old woman presented with significant gait disturbance and inability to ambulate.
• Radiographic imaging revealed extensive, abnormal ossification surrounding the bilateral acetabulum.
• The patient's symptoms were associated with diagnosed, untreated secondary hypoparathyroidism.

Findings:

• Surgical resection of the acetabular ossifications was performed to address the functional impairment.
• Post-operative radiographic follow-up at one year demonstrated no recurrence of the abnormal ossification.
• The patient experienced improved joint function following the surgical intervention.

Implications:

• This case highlights the importance of considering metabolic bone diseases, particularly secondary hypoparathyroidism, in the differential diagnosis of unexplained acetabular hyperostosis.
• Early identification and management of metabolic bone disorders may prevent the development of severe skeletal complications.
• Surgical intervention can be effective in restoring function for patients with symptomatic hyperostosis secondary to metabolic bone disease.