Hip Arthroplasty and Vitamin D Status

University of Wisconsin (UW)

Status: Completed

Conditions: Vitamin D Deficiency

Treatments: Other: No intervention

Study type: Observational

Funder types: Other

Identifiers

NCT02295228

2014-1025

Details and patient eligibility

About

It is essential that serum 25(OH)D changes following surgery be clarified, and the mechanism(s) underpinning these changes be identified. As such, the overarching hypothesis of this study is that elective total hip arthroplasty reduces serum total 25(OH)D.

Enrollment: 43 patients

Sex: All

Ages: 50+ years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Elective total hip arthroplasty for osteoarthritis
• Age 50+
• Able and willing to sign informed consent
• English speaking
• Willing to not alter vitamin D supplementation use for the duration of this study
• Willing to utilize sunscreen of SPF-15 or higher when sun exposure for more than 15 minutes is expected

Exclusion criteria

• Illnesses known to affect inflammatory marker status including, but not limited to, rheumatoid arthritis, systemic lupus erythematosis and mixed connective tissue disease
• Chronic diseases that could potentially affect DBP status, e.g., chronic kidney disease stage requiring dialysis, nephrotic syndrome and chronic hepatitis,
• Hip arthritis from causes other than osteoarthritis
• Treatment with medications with potential to affect vitamin D metabolism, (e.g., phenytoin, phenobarbital, teriparatide or active vitamin D analogues) or to potentially interfere with 25(OH)D measurement by HPLC (atavaquone) within the preceding three months.
• Treatment with high dose vitamin D supplementation (50,000 IU weekly or more frequently) within the preceding three months. Note; subjects on a stable daily vitamin D dose will be allowed to participate
• Surgical procedure within the preceding six months
• Use of tanning beds or salons or unwillingness to utilize sunscreen during periods of sun exposure of 15 minutes or longer

Trial design

43 participants in 1 patient group

Adults undergoing total hip arthroplasty

Description:

No intervention will be administered, this is an observational trial. The study population includes adults 50+ who are undergoing elective total hip arthroplasty for osteoarthritis.

Treatment:

Other: No intervention