Journals / Journal of Turkish Spinal Surgery / 2017 / Cilt: 28 - Sayı: 2

DO BOTULINUM TOXIN-A INJECTIONS INTO THE PARASPINAL MUSCLES CREATE AN IDIOPATHIC LIKE SCOLIOSIS: AN IN VIVO STUDY ON RATS

PARASPİNAL KASLARA BOTULİNUM TOKSİN-A ENJEKSİYONU İLE İDİOPATİK BENZERİ SKOLYOZ ELDE EDİLEBİLİR Mİ? RATLARDA İN VİVO ÇALIŞMA

Pages
75–82
DOI
—
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AI Summary & Key Takeaways

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

Future studies with longer follow-up period, larger number of animals, repeated injections and higher dose of Botulinum toxin-A may create a scoliosis model

📌 3 Key Takeaways

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Objective & Hypothesis:Objective: Scoliosis is a spine deformity and also involves some adaptive changes of in paraspinal muscles and ligaments.
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Key Findings & Data:Methods: 15 female Sprague-Dawley rats were divided into 3 groups as R, L and C.
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Conclusion & Impact:Future studies with longer follow-up period, larger number of animals, repeated injections and higher dose of Botulinum toxin-A may create a scoliosis model
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Scoliosis is a spine deformity and also involves some adaptive changes of in paraspinal muscles and ligaments. Some studies found paraspinal EMG activity differences, thus, we hypothesized that blocking the muscle activity of paraspinal muscles in one side of the spine may produce a scoliotic curve. Methods: 15 female Sprague-Dawley rats were divided into 3 groups as R, L and C. After intraperitoneal anesthesia, for Group R, Botulinum toxin-A was injected to right lumbar paraspinal muscles with the help of EMG. For Group L, Botulinum toxin-A injections were applied in the same manner, into the left paraspinal muscles. In Group C, 1 cc saline injection was applied to the right paraspinal muscles. Results: In the R Group, left apex lumbar curve was observed in 3 rats. In the L Group, right apex lumbar curve was observed in 3 rats. In the C Group, no one developed any coronal curves. When we evaluated the curves under fluoroscopy, we realized that all of the curves were disappeared under counter-bending maneuver opposite to curves which has caused us to think that that curves were not structural curves. Conclusion: In this study, we aimed to create a non-surgical scoliosis model in rats by injecting botulinum toxin-A into the paraspinal muscles. To our knowledge, this was the first scoliosis model used botulinum toxin-A injection. Unfortunately, we did not achieve successful results. Future studies with longer follow-up period, larger number of animals, repeated injections and higher dose of Botulinum toxin-A may create a scoliosis model

Özet

Amaç: Skolyoz paraspinal kas ve ligamanlarda da bazı adaptif değişikliklerin olduğu bir deformitedir. Bazı çalışmalar paraspinal EMG aktivitelerinde bazı değişiklikler tespit etmişlerdir. Bu yüzden, bu çalışmadaki hipotezimiz paraspinal kasların bir tarafının kas aktivitesinin bloke edilmesi ile skolyotik bir eğrilik elde edilebileceğiydi. Metod: 15 dişi Sprague-Dawley rat, R, L ve C olma üzere 3 gruba ayrıldı. İntraperitoneal anestezi sonrası, Grup R'deki ratların sağ lomber paraspinal kaslarına EMG yardımı ile Botulinum Toksin-A enjekte edildi. L grubundaki ratların sol paraspinal kasalrına aynı işlem uygulandı. C grubunun sağ lomber paraspinal kaslarına ise 1 cc salin enjekte edildi. Sonuçlar: Grup R'de 3 ratta apeksi sol tarafta olan eğrilik oluştuğu görüldü. Grup L'de 3 ratta apeksi sağ tarafta olan eğrilik oluştuğu görüldü. Grup C'de herhangi bir koronal eğrilik görülmedi. Floroskopi altında yapılan değerlendirmede, eğrilik gözlenen ratlar eğriliğin karşı tarafına doğru eğilerek bekletildi ve eğriliklerin kaybolduğu görüldü. Bu da bize eğriliğin yapısal bir eğrilik olmadığını düşündürdü. Çıkarımlar: Bu çalışmada ratların paraspinal kaslarına Botulinum Toksin-A enjeksiyonu yaparak cerrahi-dışı bir skolyoz modeli oluşturmayı amaçladık. Bizim bilgimize göre bu çalışma Botulinum Toksin-A kullanılan ilk skolyoz modelidir. Ne yazık ki başarılı bir sonuç elde edemedik. Daha uzun takibin yapıldığı, daha fazla hayvanın kullanıldığı, tekrarlayan injeksiyonlar ve daha yüksek dozda Botulinum Toksin-A kullanılan ileriki çalışmalarda yapısal bir skolyoz modeli elde edilebilir

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Cite This Article

SARIYILMAZ, K., OZKUNT, O., AKSU, M., GEMALMAZ, H. C., SUNGUR, M., KOCHAİ, A., DİKİCİ, F. (2017). DO BOTULINUM TOXIN-A INJECTIONS INTO THE PARASPINAL MUSCLES CREATE AN IDIOPATHIC LIKE SCOLIOSIS: AN IN VIVO STUDY ON RATS. Journal of Turkish Spinal Surgery, Cilt: 28 - Sayı: 2, 75–82. https://ajindex.com/articles/201066

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