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Covello A, Toprover M, Oh C, Leroy G, Kumar A, LaMoreaux B, Mechlin M, Fields TR, Pillinger MH, Becce F. Skeletal muscle mass and quality in gout patients versus non-gout controls: A computed tomography imaging study. Joint Bone Spine 2024; 91:105743. [PMID: 38795766 DOI: 10.1016/j.jbspin.2024.105743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/23/2024] [Accepted: 05/13/2024] [Indexed: 05/28/2024]
Abstract
OBJECTIVE Patients with gout are at elevated risk of multiple vascular and metabolic comorbidities. Whether they are also at risk of sarcopenia, which is known to affect patients with other rheumatic diseases, has not been previously assessed. We examined whether patients with gout have decreased lumbar muscle quality and quantity, indicating an association between gout and sarcopenia. METHODS Fifty gout subjects and 25 controls, ages 45-80, underwent computed tomography imaging of the lumbosacral spine. We measured muscle quantity (skeletal muscle area [SMA] and index [SMI]) and quality (skeletal muscle radiation attenuation [SMRA] and intermuscular adipose tissue [IMAT] area and index [IMATI]) of the psoas and erector spinae muscles at the L3 level. RESULTS Seventy subjects (45 gout and 25 controls) were included in the analysis. Gout subjects had higher BMI, more kidney disease and hypertension, lower exercise frequency, and higher mean serum urate and creatinine vs. controls. Lumbar SMRA was significantly lower in gout subjects vs. controls, indicating reduced muscle quality. Lumbar IMAT area was significantly higher in gout subjects vs. controls, as was lumbar IMATI, indicating increased muscle adiposity. These differences persisted after adjusting for potential confounders. In contrast, there was no significant difference between gout and control groups in lumbar SMA or lumbar SMI, suggesting that muscle quantity may not be routinely affected by the diagnosis of gout. CONCLUSIONS Gout patients exhibit decreased lumbar muscle quality compared with controls, consistent with an association between gout and sarcopenia.
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Affiliation(s)
- Allyson Covello
- Division of Rheumatology, Department of Medicine, New York University Grossman School of Medicine, 550 First Avenue, New York, NY, USA; Rheumatology Section, NY Harbor Health Care System, New York Campus, United States Department of Veterans Affairs, 423 E 23rd Street, New York, NY, USA.
| | - Michael Toprover
- Division of Rheumatology, Department of Medicine, New York University Grossman School of Medicine, 550 First Avenue, New York, NY, USA; Rheumatology Section, NY Harbor Health Care System, New York Campus, United States Department of Veterans Affairs, 423 E 23rd Street, New York, NY, USA
| | - Cheongeun Oh
- Division of Biostatistics, Department of Population Health, New York University Grossman School of Medicine, 550, First Avenue, New York, NY, USA
| | - Gregoire Leroy
- Department of Diagnostic and Interventional Radiology, Lausanne University Hospital, University of Lausanne, 46, rue du Bugnon, 1011 Lausanne, Switzerland
| | - Ada Kumar
- Amgen Inc, 1 Amgen Center Drive, Thousand Oaks, CA 91320, USA
| | - Brian LaMoreaux
- Amgen Inc, 1 Amgen Center Drive, Thousand Oaks, CA 91320, USA
| | - Michael Mechlin
- Division of Musculoskeletal Radiology, Department of Radiology, New York University Grossman School of Medicine, 550 First Avenue, New York, NY, USA
| | - Theodore R Fields
- Division of Rheumatology, Hospital for Special Surgery, 535 E 70th Street, New York, NY, USA
| | - Michael H Pillinger
- Division of Rheumatology, Department of Medicine, New York University Grossman School of Medicine, 550 First Avenue, New York, NY, USA; Rheumatology Section, NY Harbor Health Care System, New York Campus, United States Department of Veterans Affairs, 423 E 23rd Street, New York, NY, USA
| | - Fabio Becce
- Department of Diagnostic and Interventional Radiology, Lausanne University Hospital, University of Lausanne, 46, rue du Bugnon, 1011 Lausanne, Switzerland
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