Therapeutic Effects of Laser on Partial Osteotomy in the Rat Model of Hypothyroidism | Zendy

Niloofar Sefati | Zendy; HojjatAllah Abbaszadeh | Zendy; Fatemeh Fadaei Fathabady | Zendy; MohammadAmin Abdollahifar | Zendy; Abdollah Amini | Zendy; Ali Noori-Zadeh | Zendy; Shahram Darabi | Zendy; Mohsen Norouzian | Zendy

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Therapeutic Effects of Laser on Partial Osteotomy in the Rat Model of Hypothyroidism

Author(s) -

Niloofar Sefati,

HojjatAllah Abbaszadeh,

Fatemeh Fadaei Fathabady,

MohammadAmin Abdollahifar,

Abdollah Amini,

Ali Noori-Zadeh,

Shahram Darabi,

Mohsen Norouzian

Publication year - 2018

Publication title -

journal of lasers in medical sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.443

H-Index - 21

eISSN - 2228-6721

pISSN - 2008-9783

DOI - 10.15171/jlms.2018.23

Subject(s) - medicine , rat model , osteotomy , therapeutic effect , surgery

Several experimental studies have displayed positive result for laser radiation on stimulating bone regeneration in recent years. The purpose of this experimental study was to determine low-level laser (LLL) effects on partial bone defects in hypothyroidism male rat. Methods: Forty male Wistar rats were randomly distributed as below groups: hypothyroidism + laser (Hypo + laser), hypothyroidism (Hypo), and control. Four weeks after surgery, the tibia bone was removed. Biomechanical and histological examinations were performed immediately. Results: Our results showed significant reduction in the absorption of energy, resistance in bending deformation (bending stiffness), maximum force, high stress load, trabecular bone volume, and number of osteocytes, osteoblasts and osteoclasts in the osteotomy site in hypothyroidism rats compared to hypothyroidism + laser group (P<0.05). Conclusion: The results indicated that using laser may improve fracture regeneration and it may accelerate bone healing in hypothyroidism rat.

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