Association between low cortical bone mineral density, soft-tissue calcification, vascular calcification and...

Area of Science:

• Orthopedics and Rheumatology
• Radiology
• Genetics

Background:

• Chondrocalcinosis (CC) is a condition characterized by calcium pyrophosphate dihydrate crystal deposition in cartilage.
• Understanding the risk factors and associations of CC is crucial for developing effective prevention and treatment strategies.
• Previous research has explored various factors, but the interplay between bone mineral density, soft-tissue calcification, and vascular calcification in CC requires further investigation.

Purpose of the Study:

• To investigate the association between bone mineral density (BMD), soft-tissue calcification, vascular calcification, and chondrocalcinosis (CC).

Main Methods:

• A case-control study was conducted using the Genetics of Osteoarthritis and Lifestyle (GOAL) database (n=3170).
• Radiographs were analyzed for osteoarthritis (OA), CC, vascular calcification, and metacarpal index (MCI) as a measure of cortical BMD.
• Dual-energy X-ray absorptiometry (DEXA) was used for calcaneal BMD assessment. Logistic regression was employed to determine associations and adjust for confounders.

Main Results:

• Low MCI (cortical BMD), soft-tissue calcification, and vascular calcification were independently associated with CC.
• A negative association was observed between body mass index and CC.
• Age and OA were associated with CC, but only age and low MCI independently associated with CC at multiple joints. Knee CC was associated with meniscectomy, low cortical BMD, vascular calcification, and soft-tissue calcification.

Conclusions:

• This study identified novel associations of CC, including low cortical BMD.
• The findings suggest a generalized constitutional predisposition to calcium crystal formation, indicated by the links between vascular calcification, soft-tissue calcification, and CC.