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Effects of a selective cyclooxygenase-2 inhibitor (celecoxib) on fracture healing in rats

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Abstract

Background: Several studies suggested that celecoxib interferes will bone healing while others contradict these findings. This study was conducted to investigate the effects of celecoxib on bone healing in rats femur mold with a dose based on body surface area conversion.

Materials and Methods: 72 adult female Sprague Dawley rats were randomly divided into three groups after the internal fixation operation of nondisplaced transverse mid diaphyseal fractures of the right femurs. Each group was treated with 1 % methylcellulose, celecoxib (21 mg/kg/d) for 1 week, or celecoxib (21 mg/kg/d) for 4 weeks after surgeries respectively. Bone healing scores and callus formation were evaluated by radiographs at 3, 4, 6 weeks after surgeries. Half of these rats were sacrificed for histological analysis at 4 weeks after surgery. The remaining fractured femurs were evaluated by biomechanical tests at 6 weeks after surgery.

Results: The mean radiographic scores for fracture healing of both short and long term groups were lower than that of the control group and the differences among the three groups were statistically significant (P < 0.05) at 3, 4, 6 weeks after surgery. The mean bone trabecula density of both groups was smaller than that of the control group and the differences were also statistically significant (P < 0.05) at 4 week. The maximum load, total energy and stiffness in both the short term and long term groups were significantly decreased compared with those in the control group (P < 0.05) at 6 week.

Conclusion: Both short term and long term sustained use of celecoxib in rat models has significantly inhibitory effects on rat fracture healing.

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Authors and Affiliations

  1. Department of Orthopaedics, Chenzhou People’s Hospital, Chenzhou, 423000, Hunan, China

    Guo-Bing Deng

  2. Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China

    Kang-Hua Li, Liang Cheng,  Yong Zhu & Hai-Tao Long

Authors
  1. Kang-Hua Li
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  2. Liang Cheng
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  3. Yong Zhu
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  4. Guo-Bing Deng
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  5. Hai-Tao Long
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Correspondence to Yong Zhu.

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Li, KH., Cheng, L., Zhu, Y. et al. Effects of a selective cyclooxygenase-2 inhibitor (celecoxib) on fracture healing in rats. IJOO 47, 395–401 (2013). https://doi.org/10.4103/0019-5413.114930

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  • DOI: https://doi.org/10.4103/0019-5413.114930

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