Symptoms and joint degeneration correlate with the temperature of osteoarthritic knees: an infrared thermography analysis.

IF 2 3区医学 Q2 ORTHOPEDICS International Orthopaedics Pub Date : 2025-01-01 Epub Date: 2024-11-26 DOI:10.1007/s00264-024-06376-1

Luca De Marziani, Lorenzo Zanasi, Giacomo Roveda, Angelo Boffa, Luca Andriolo, Alessandro Di Martino, Stefano Zaffagnini, Giuseppe Filardo

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Abstract

Purpose: This study aim was to analyze the joint temperature of patients affected by bilateral knee osteoarthritis (OA) using infrared thermography to investigate whether thermographic imaging patterns are influenced by the severity of symptoms and joint degeneration.

Methods: Sixty-sixpatients ranging from 43 to 78 years old (63.3 ± 8.8 years) with bilateral knee OA and one symptomatic knee were enrolled. Thermograms of the two knees were captured using a thermographic camera FLIR T1020 and analyzed with the ResearchIR software to calculate the temperature of the overall knee and the four regions of interest (ROIs): patella, suprapatellar, medial, and lateral areas.

Results: The temperature of knees affected by OA was influenced by joint degeneration level and symptoms: patients with higher OA grade in the symptomatic knees presented higher total knee temperatures compared to the asymptomatic ones (p = 0.002), as well as in the patellar (p = 0.005), lateral (p = 0.002), and medial (p = 0.001) areas. On the other hand, patients with the same OA level in the two knees presented a higher temperature in the symptomatic knee only in the medial area (p = 0.037). Symptomatic knees demonstrated a different pattern compared to asymptomatic knees, with the medial area presenting the highest temperature changes (p = 0.020). Patients reporting prevalent pain in the lateral knee area presented higher differences in total knee temperature (0.7 ± 0.7 °C) than patients with pain in the medial area (0.1 ± 0.5 °C) (p = 0.023).

Conclusion: The temperature of knees affected by OA is influenced by the degree of joint degeneration and by the presence of symptoms, with higher temperatures found in symptomatic joints, especially with prevalent lateral knee pain, and in more severe OA. Symptomatic knees demonstrated a different pattern compared to asymptomatic knees, with the medial area presenting the highest temperature changes.

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症状和关节退化与骨关节炎膝关节温度相关：红外热成像分析。

目的：本研究旨在利用红外热成像技术分析双侧膝关节骨性关节炎（OA）患者的关节温度，研究热成像模式是否受症状严重程度和关节退化的影响：方法：共招募了 60 名双侧膝关节 OA 患者，年龄从 43 岁到 78 岁不等（63.3 ± 8.8 岁），其中一侧膝关节无症状。使用热像仪FLIR T1020采集两个膝关节的热图，并使用ResearchIR软件进行分析，计算整个膝关节和四个感兴趣区域（ROI）的温度：髌骨、髌上、内侧和外侧区域：受 OA 影响的膝关节温度受关节退化程度和症状的影响：与无症状膝关节相比，OA 等级越高的患者膝关节总温度越高（p = 0.002），髌骨（p = 0.005）、外侧（p = 0.002）和内侧（p = 0.001）区域的温度也越高。另一方面，两个膝关节OA程度相同的患者，有症状的膝关节只有内侧区域温度较高（p = 0.037）。与无症状的膝关节相比，有症状的膝关节显示出不同的模式，内侧区域的温度变化最大（p = 0.020）。报告膝关节外侧区域疼痛的患者的膝关节总温差（0.7 ± 0.7 °C）高于内侧区域疼痛的患者（0.1 ± 0.5 °C）（p = 0.023）：受 OA 影响的膝关节温度受关节退化程度和是否存在症状的影响，有症状的关节温度较高，尤其是膝关节外侧疼痛和 OA 更严重的患者。与无症状的膝关节相比，有症状的膝关节表现出不同的模式，内侧区域的温度变化最大。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Orthopaedics 医学-整形外科

CiteScore

5.50

自引率

7.40%

发文量

360

审稿时长

1 months

期刊介绍： International Orthopaedics, the Official Journal of the Société Internationale de Chirurgie Orthopédique et de Traumatologie (SICOT) , publishes original papers from all over the world. The articles deal with clinical orthopaedic surgery or basic research directly connected with orthopaedic surgery. International Orthopaedics will also link all the members of SICOT by means of an insert that will be concerned with SICOT matters. Finally, it is expected that news and information regarding all aspects of orthopaedic surgery, including meetings, panels, instructional courses, etc. will be brought to the attention of the readers. Manuscripts submitted for publication must contain a statement to the effect that all human studies have been approved by the appropriate ethics committee and have therefore been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki. It should also be stated clearly in the text that all persons gave their informed consent prior to their inclusion in the study. Details that might disclose the identity of the subjects under study should be omitted. Reports of animal experiments must state that the "Principles of laboratory animal care" (NIH publication No. 85-23, revised 1985) were followed, as well as specific national laws (e.g. the current version of the German Law on the Protection of Animals) where applicable. The editors reserve the right to reject manuscripts that do not comply with the above-mentioned requirements. The author will be held responsible for false statements or for failure to fulfil the above-mentioned requirements.