Bone loss in chronic kidney disease: Quantity or quality?

Area of Science:

• Nephrology
• Bone Metabolism
• Pathophysiology

Background:

• Chronic kidney disease (CKD) is linked to significant bone loss and fracture risk.
• CKD-mineral bone disorder (CKD-MBD) is a systemic complication causing renal osteodystrophy.
• The turnover, mineralization, and volume (TMV) system characterizes bone lesions in CKD-MBD.

Purpose of the Study:

• To review current understanding of bone quantity and quality loss in CKD patients.
• To discuss the morphological bone lesions described by the TMV system.
• To explore potential therapeutic strategies for CKD-MBD related bone abnormalities.

Main Methods:

• Literature review of studies on CKD-MBD and bone histology.
• Analysis of the TMV system for classifying bone lesions.
• Synthesis of current data on bone quantity and quality in CKD.

Main Results:

• All TMV-defined bone histologies contribute to bone quantity and quality deficits in CKD.
• Bone turnover and volume can be high, normal, or low.
• Bone mineralization is classified as normal or abnormal.

Conclusions:

• CKD-MBD leads to diverse bone pathologies affecting bone quantity and quality.
• Understanding TMV classifications is crucial for diagnosing renal osteodystrophy.
• Further research into therapeutic measures is warranted to address bone loss in CKD patients.