Journals / Eklem Hastalıkları ve Cerrahisi Dergisi (Eski Adı: Artroplasti Artroskopik Cerrahi Derg.) / 2016 / Cilt: 27 - Sayı: 1

Osteoporotik sıçan tibiası modelinde zoledronatın kırık kaynamasında histolojik ve biyomekanik etkileri

Histological and biomechanical effects of zoledronate on fracture healing in an osteoporotic rat tibia model

Pages
9–15
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Positive effects of zoledronic acid treatment on osteoporotic fracture healing and callus quality should be shown by future clinical studies.

📌 3 Key Takeaways

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Objective & Hypothesis:Objectives: This study aims to investigate the effects of zoledronate therapy on histological and biomechanical properties of bone healing via a fracture model generated on osteoporotic rat tibiae.Materials and methods: Ovariectomized 40 Wistar-Dawley female rats weighing 300 g to 350 g were used in the study.
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Key Findings & Data:After one week, 2 IU/g heparin injection was started subcutaneously.
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Conclusion & Impact:Positive effects of zoledronic acid treatment on osteoporotic fracture healing and callus quality should be shown by future clinical studies.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objectives: This study aims to investigate the effects of zoledronate therapy on histological and biomechanical properties of bone healing via a fracture model generated on osteoporotic rat tibiae.Materials and methods: Ovariectomized 40 Wistar-Dawley female rats weighing 300 g to 350 g were used in the study. After one week, 2 IU/g heparin injection was started subcutaneously. After four weeks of daily injections, osteoporosis was ensued proven with bone mineral density measurements. Osteoporotic rats were separated into four equal groups randomly as group A (control), group B (calcium and vitamin D), group C (0.1 mg/kg subcutaneous zoledronic acid), and group D (calcium and vitamin D / 0.1 mg/kg subcutaneous zoledronic acid). Six weeks later, all rats were sacrificed, their tibiae were resected, and histopathologic and biomechanical studies were performed.Results: Group C (30.2±1 Nm) and group D (33.3±3 Nm) had significantly higher peak torque values than group A (21.6±6 Nm) and group B (23.6±4 Nm) (p=0.007 and p=0.005, respectively). Group C (1.8) and group D (2.0) had higher stiffness values than group A (1.4) and group B (1.7); however, the difference was not statistically significant (p> 0.05 for all).Conclusion: According to histopathological and biomechanical test results, single dose zoledronic acid treatment improves fracture healing in an osteoporotic rat fracture model. Orally administered daily calcium and vitamin D treatment had no effect on fracture healing. There was no additional improvement in fracture healing when calcium and vitamin D treatment was added to zoledronic acid treatment. Positive effects of zoledronic acid treatment on osteoporotic fracture healing and callus quality should be shown by future clinical studies.

Özet

Amaç: Bu çalışmada zoledronat tedavisinin osteoporotik sıçan tibialarında oluşturulan kırık modeli üzerinde kemik iyileşmesinin histolojisi ve biyomekanik özelliklerine etkileri araştırıldı.Gereç ve yöntemler: Çalışmada ağırlıkları 300 g - 350 g olan ovariektomi yapılmış 40 adet Wistar-Dawley dişi sıçan kullanıldı. Bir hafta sonra, 2 IU/g subkütan heparin tedavisine başlandı. Günlük enjeksiyonlarla dört hafta sonra, kemik mineral yoğunluğu ölçümü ile kanıtlanmış osteoporoz oluşturuldu. Osteoporotik sıçanlar grup A (kontrol), grup B (kalsiyum ve D vitamini), grup C (0.1 mg/kg subkütan zoledronik asit) ve grup D (kalsiyum ve D vitamini / 0.1 mg/kg subkütan zoledronik asit) olarak rastgele dört eşit gruba ayrıldı. Altı hafta sonra, bütün sıçanlar sakrifiye edildi, tibiaları çıkartıldı ve histopatolojik ve biyomekanik incelemeler yapıldı.Bulgular: Grup C (30.2±1 Nm) ve grup D'nin (33.3±3 Nm) tork değerleri grup A (21.6±6 Nm) ve grup B'den (23.6±4 Nm) anlamlı olarak daha yüksek idi (sırasıyla p=0.007 ve p=0.005). Grup C (1.8) ve grup D'nin (2.0) sertlik değerleri, grup A (1.4) ve grup B'den (1.7) daha yüksekti, ancak farklılık istatistiksel olarak anlamlı değildi (hepsi için p> 0.05).Sonuç: Histopatolojik ve biyomekanik test sonuçlarına göre, tek doz zoledronik asit tedavisi osteoporotik sıçan kırık modelinde kırık iyileşmesini artırdı. Ağız yoluyla verilen günlük kalsiyum ve D vitamini tedavisinin kırık iyileşmesi üzerinde etkisi yoktu. Zoledronik asit tedavisine kalsiyum ve D vitamini tedavisi eklendiğinde, kırık iyileşmesinde ek bir artış olmadı. Zoledronik asit tedavisinin osteoporotik kırık iyileşmesi ve kallus kalitesine olumlu etkileri gelecek klinik çalışmalarla gösterilmelidir.

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Cite This Article

ÇIRPAR, M., KOCHAİ, A., TÜRKER, M., BALCI, M., TULMAÇ, Ö. B., ASLAN, A. (2022). Osteoporotik sıçan tibiası modelinde zoledronatın kırık kaynamasında histolojik ve biyomekanik etkileri. Eklem Hastalıkları ve Cerrahisi Dergisi (Eski Adı: Artroplasti Artroskopik Cerrahi Derg.), Cilt: 27 - Sayı: 1, 9–15. https://ajindex.com/articles/498527

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