Related Experiment Video
Updated: Apr 1, 2026

Tissue Collection and RNA Extraction from the Human Osteoarthritic Knee Joint
Published on: July 22, 2021
Osteoarthritis in Latin America: Study of Demographic and Clinical Characteristics in 3040 Patients
Anthony M Reginato1, Humberto Riera, Mariflor Vera
1From the *Division of Rheumatology, The Warren Alpert School of Medicine, Providence, RI; †Unidad de Reumatología, Instituto Autónomo Hospital Universitario de Los Andes, Universidad de Los Andes; and ‡LabMice, Universidad de Los Andes, Mérida, Venezuela; §Departamento de Reumatología, Instituto Nacional de Rehabilitación, México City; and ∥Departamento de Medicina Interna, Servicio de Reumatologia, Universidad Autonoma de Nuevo León, Mexico; ¶National Coordinator of Rheumatology and the Arthritis Clinical Research Unit at Medicarte, Medellin, Colombia; #Bone and Joint Research Unit, Fundación Jimenez Díaz, Madrid, Spain; **Servicio de Reumatología del Hospital Dr E. Tornu, Buenos Aires, Argentina; ††Catedra de Reumatología de la Facultad de Medicina de la Universidad de la Republica, Montevideo, Uruguay; ‡‡Departamento de Reumatología de la Universidad CES, Medellin, Colombia; §§Departamento de Reumatología, Universidad de Chile; and ∥∥Departamento de Reumatología, Universidad Católica de Chile, Santiago, Chile; ¶¶Servicio de Reumatología del Hospital Quirúrgico 10 de Octubre and ##Servicio de Reumatología del Hospital Frank País, Havana, Cuba; ***Servicio de Reumatología Hospital Santa Cruz, Caja Petrolera de Salud Techo Académico Universidad Católica San Pablo; †††Servicio de Medicina Interna del Hospital Obrero N° 3 de la Caja Nacional de Salud, Santa Cruz, Universidad Santo Tomas De Aquino, Santa Cruz; and ‡‡‡Servicio de Reumatología Kolping y Hospital Alfonzo Gumucio-Techo Académico Universidad Católica San Pablo, San Pablo, Bolivia, §§§Post-Grado de Reumatología, AGAR, FM, UFM, Facultad de Medicina, Universidad Francisco Marroquín, Ciudad de Guatemala, Guatemala; ∥∥∥Servicio de Reumatología, Instituto Salvadoreño del Seguro Social, San Miguel, El Salvador; ¶¶¶Servicio de Reumatología del Hospital de Clínicas de Asunción, Universidad Nacional de Asunción, Asunción, Paraguay; ###
Background:
Latin America is a heterogeneous region made up of different populations, cultures, latitudes, altitudes, and immigrants from different areas and ethnic groups.
Objective:
The purpose of this study is to describe the clinical and demographic profile of patients with osteoarthritis (OA) evaluated by a selected group of rheumatologists in 13 Latin American countries.
Methods:
A descriptive, observational, cross-sectional study was conducted in 13 Latin American countries of patients with symptomatic OA. Data were collected over a 3-month period using an ad hoc questionnaire to evaluate the clinical and demographic features of OA seen by rheumatologists.
Results:
Among the 3040 patients, their average age was 62.5 years, and female-to-male ratio was 4.8:1. Patients with body mass index of greater than 30 kg/m or obesity was found in 38.2%. Approximately 88% had primary OA. Joints with OA were as follows: knee 31.2%, hand 9.5%, hand and knee 22.9%, proximal and distal interphalangeal joints (erosive OA) 6.5%, axial 6.6%, and hip 1.3%. Approximately 88.5% had radiographic severity of grade 2 or 3 on Kellgren-Lawrence scale (0-4). Nonsteroidal anti-inflammatory drugs were the predominant OA treatment included in combinations with glucosamine sulfate/chondroitin and viscosupplementation. Associated comorbidities included hypertension (39%), obesity (36.3%), diabetes mellitus (12%), and without comorbidity (12.7%).
Conclusions:
This is 1 of the largest population studies that evaluated the characteristics of OA in 3040 patients evaluated by rheumatologists in 13 Latin American countries. This study provides important data for each Latin American country to develop new health care planning in management of OA.
More Related Videos
07:32Standardized Histomorphometric Evaluation of Osteoarthritis in a Surgical Mouse Model
Published on: May 6, 2020
07:22Glycemic Impact on Knee Osteoarthritis Symptoms on Physical, Radiographic, and Inflammatory Markers among Individuals Aged 50 and Over with Diabetes
Published on: March 7, 2025
Related Concept Videos
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
COPD: Pathogenesis and Clinical Features
The primary cause for the onset of COPD is cigarette smoking and exposure to air pollution. These hazardous factors initiate a chain reaction within the lungs, resulting in chronic inflammation, damage to the airways, and a...
Rheumatic Heart Disease I: Introduction
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Prevalence and Incidence
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...