. 2021 Dec 20;13(2 Suppl):1790S–1801S. doi: 10.1177/19476035211063862

Table 1.

Characteristics of the OA Included Studies.

Author-Year-Journal	No. of patients	Age range	Male/Female	Pathology	Joint	Findings	Technology
Brito, C.J. (2020)¹⁸ Journal of Thermal Analysis and Calorimetry	70	69-81	24/46	OA	Knee	Different thermal skin response after an acute training session between OA subjects and control group	FLIR T335
Belcaro, G., (2019)¹⁹ Minerva Ortopedica E Traumatologica	45	44-55	45/0	OA	Knee	IRT detects the response to medical treatment in knee OA	FLIR 440
Bhowmik, M. K. (2016)²⁰ Thermosense: Thermal Infrared Applications	15	23-75	4/11	OA (/RA)	Knee	Different patterns of heat intensity distribution over affected and normal joints	FLIR T650sc
Jin, C. (2012)²¹ Journal of Medical and Biological Engineering	133	NA	NA	OA	Knee	Screening system of normal and abnormal cases, based on temperature patterns, with an accuracy rate of 85.5%, a sensitivity of 85.7%, and a specificity of 85.5%	FLIR SC620
Borojević, N. (2011)²² Periodicum Biologorum	13	NA	4/16	OA (/RA)	Hand	1. Joints’ absolute temperature differences between pathologic and control group 2. Different patterns of heat intensity distribution over affected and normal joints	Thermo Tracer TH7102WL
Denoble, A. E. (2010)²³ Clinical Medicine Insights	30	40-45	4/30	OA	Knee	Correlation between thermal patterns and radiological severity grade	Meditherm Med2000™
Mejersjö, C. (2008)²⁴ Journal of Oral Rehabilitation	29	39-76	2/27	OA	TMJ	1. Joints’ absolute temperature differences between pathologic and control group 2. Temperature did not correlate with medical treatment’s response and symptoms	Exacon MC 8900
Varju, G. (2004)²⁵ Rheumatology	91	46-87	18/73	OA	Hand	1. Correlation between thermal patterns and radiological severity grade 2. KL1 joints are warmer than KL0 joints, whereas KL 2, 3, 4 joints were colder than KL0 joints	Compix® PC2000e
Gratt, B. M. (1994)²⁶ Journal of Orofacial Pain	80	NA	27/53	OA	TMJ	Joints’ absolute temperature differences between pathologic and control group	Agema® 870 thermovision unit
Gratt, B. M. (1993)²⁷ Journal of Orofacial Pain	20	NA	4/16	OA	TMJ	1. Joints’ absolute temperature differences between pathologic and control group 2. Different patterns of heat intensity distribution over affected and normal joints	Draeger® 8000
Vargas ESNCO. (2020)²⁸ Reumatologia	25	54-78	6/19	OA	Knee	Superficial temperature of the knee was not associated with Kellgren-Lawrence grading scale	NA

OA = osteoarthritis; IRT = infrared thermography; RA = rheumatoid arthritis; TMJ = temporomandibular joint; KL = Kellgren-Lawrence.