The effects of intra-articular injection of ibuprofen on knee joint cartilage and synovium in rats

Objective: The aim of this animal study was to investigate the short and long-term local histomorphologic effects and the utility of intra-articular application of ibuprofen. Methods: Forty-six Wistar Albino rats were used in the study. The rats were randomized into 5 groups of 8 and a sham group of...

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Main Authors: Emine Çepni Kütahya, Bahar Oc, Ceyhan Ugurluoglu, Ipek Duman, Oguzhan Arun
Format: Article
Language:English
Published: AVES 2019-07-01
Series:Acta Orthopaedica et Traumatologica Turcica
Online Access:http://www.sciencedirect.com/science/article/pii/S1017995X18303894
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author Emine Çepni Kütahya
Bahar Oc
Ceyhan Ugurluoglu
Ipek Duman
Oguzhan Arun
author_facet Emine Çepni Kütahya
Bahar Oc
Ceyhan Ugurluoglu
Ipek Duman
Oguzhan Arun
author_sort Emine Çepni Kütahya
collection DOAJ
description Objective: The aim of this animal study was to investigate the short and long-term local histomorphologic effects and the utility of intra-articular application of ibuprofen. Methods: Forty-six Wistar Albino rats were used in the study. The rats were randomized into 5 groups of 8 and a sham group of 6. The 40 rats in the study groups were anaesthetised with 60 mg/kg of ketamine, then 0.25 ml ibuprofen (25 mg) was injected to the right knee joint of each rat (ibuprofen group) and 0.25 ml 0.9% saline to the left knee joint as the control group. To the 6 rats in the sham group, only puncture was applied to both knee joints. The rats in each of the 5 study groups were sacrificed on days 1, 2, 7, 14 and 21 respectively. The histomorphologic changes were graded on a 6-point scale regarding inflammation of the synovia, cartilage tissue, and subchondral bone. Inflammation scores were compared using the Mann Whitney U-test and comparisons of the sacrifice day and drug used were evaluated with the Kruskal Wallis test. The p values below 0.05 were considered as significant. Results: Statistically significant difference was found between the ibuprofen injected knees (10/40) and the saline injected (0/40) and sham knees (0/12) in respect of hematoma positivity (p = 0.002). Significantly higher inflammation scores were found in ibuprofen injected knees on the 1st, 2nd, 7th and 14th days compared to controls and sham (p < 0.05). Inflammation scores were similar in ibuprofen injected knees with and without hematoma (p > 0.05). Inflammation of the ibuprofen injected group was most severe on day one and the severity of inflammation reduced gradually throughout the 3 weeks. Conclusion: Our results show that intra-articular injection of ibuprofen can cause intra-articular hematoma. It also leads to transient inflammation of the synovia that is more severe in the early period, which gradually recovers. Keywords: Ibuprofen, Intra-articular, Knee, Synovium, Cartilage
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spelling doaj.art-015c78da90584eb5a11e41788d01c72d2023-02-15T16:11:07ZengAVESActa Orthopaedica et Traumatologica Turcica1017-995X2019-07-01534292296The effects of intra-articular injection of ibuprofen on knee joint cartilage and synovium in ratsEmine Çepni Kütahya0Bahar Oc1Ceyhan Ugurluoglu2Ipek Duman3Oguzhan Arun4Department of Anesthesiology and Reanimation, Konya Training and Research Hospital, Konya, Turkey; Corresponding author. Department of Anesthesiology and Reanimation, Konya Training and Research Hospital, 42090, Meram, Konya, Turkey. Tel.: +90 332221000.Department of Anesthesiology and Reanimation, Medical School of Selcuk University, Konya, TurkeyDepartment Pathology, Medical School of Selcuk University, Konya, TurkeyDepartment of Pharmacology, N.E. University Meram Medical School, Konya, TurkeyDepartment of Anesthesiology and Reanimation, Medical School of Selcuk University, Konya, TurkeyObjective: The aim of this animal study was to investigate the short and long-term local histomorphologic effects and the utility of intra-articular application of ibuprofen. Methods: Forty-six Wistar Albino rats were used in the study. The rats were randomized into 5 groups of 8 and a sham group of 6. The 40 rats in the study groups were anaesthetised with 60 mg/kg of ketamine, then 0.25 ml ibuprofen (25 mg) was injected to the right knee joint of each rat (ibuprofen group) and 0.25 ml 0.9% saline to the left knee joint as the control group. To the 6 rats in the sham group, only puncture was applied to both knee joints. The rats in each of the 5 study groups were sacrificed on days 1, 2, 7, 14 and 21 respectively. The histomorphologic changes were graded on a 6-point scale regarding inflammation of the synovia, cartilage tissue, and subchondral bone. Inflammation scores were compared using the Mann Whitney U-test and comparisons of the sacrifice day and drug used were evaluated with the Kruskal Wallis test. The p values below 0.05 were considered as significant. Results: Statistically significant difference was found between the ibuprofen injected knees (10/40) and the saline injected (0/40) and sham knees (0/12) in respect of hematoma positivity (p = 0.002). Significantly higher inflammation scores were found in ibuprofen injected knees on the 1st, 2nd, 7th and 14th days compared to controls and sham (p < 0.05). Inflammation scores were similar in ibuprofen injected knees with and without hematoma (p > 0.05). Inflammation of the ibuprofen injected group was most severe on day one and the severity of inflammation reduced gradually throughout the 3 weeks. Conclusion: Our results show that intra-articular injection of ibuprofen can cause intra-articular hematoma. It also leads to transient inflammation of the synovia that is more severe in the early period, which gradually recovers. Keywords: Ibuprofen, Intra-articular, Knee, Synovium, Cartilagehttp://www.sciencedirect.com/science/article/pii/S1017995X18303894
spellingShingle Emine Çepni Kütahya
Bahar Oc
Ceyhan Ugurluoglu
Ipek Duman
Oguzhan Arun
The effects of intra-articular injection of ibuprofen on knee joint cartilage and synovium in rats
Acta Orthopaedica et Traumatologica Turcica
title The effects of intra-articular injection of ibuprofen on knee joint cartilage and synovium in rats
title_full The effects of intra-articular injection of ibuprofen on knee joint cartilage and synovium in rats
title_fullStr The effects of intra-articular injection of ibuprofen on knee joint cartilage and synovium in rats
title_full_unstemmed The effects of intra-articular injection of ibuprofen on knee joint cartilage and synovium in rats
title_short The effects of intra-articular injection of ibuprofen on knee joint cartilage and synovium in rats
title_sort effects of intra articular injection of ibuprofen on knee joint cartilage and synovium in rats
url http://www.sciencedirect.com/science/article/pii/S1017995X18303894
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