Journals / Turkish Neurosurgery / 2015 / Cilt: 25 - Sayı: 4

Feasibility of Screw Placement in the Occipital Condyle of Chinese Patients for Occipitocervical Arthrodesis: A Cadaveric Study

Oksipitoservikal Artrodez için Çinli Hastaların Oksipital Kondiline Vida Yerleştirme Uygunluğu: Bir Kadavra Çalışması

Pages
60–66
DOI
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AI Summary & Key Takeaways

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

As in other populations, OC shape and size is smaller in females and varies in Chinese individuals, necessitating individualized imaging for good outcomes.

📌 3 Key Takeaways

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Objective & Hypothesis:AIm: The feasibility of computed tomography (CT) and two-dimensional (2D) reconstruction-guided screw placement in the occipital condyle (OC) of Chinese patients was investigated.
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Key Findings & Data:MaterIal and Methods: Twenty (40 OCs) fresh cadaveric specimens with intact superior cervical spine and occipital bones were placed in the prone position.
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Conclusion & Impact:As in other populations, OC shape and size is smaller in females and varies in Chinese individuals, necessitating individualized imaging for good outcomes.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

AIm: The feasibility of computed tomography (CT) and two-dimensional (2D) reconstruction-guided screw placement in the occipital condyle (OC) of Chinese patients was investigated. MaterIal and Methods: Twenty (40 OCs) fresh cadaveric specimens with intact superior cervical spine and occipital bones were placed in the prone position. Simulated screw placement was achieved by placing 4.0 mm diameter virtual screws with the help of the 2D reconstruction CT scan image technology. Maximal screw length, angulation in the sagittal and transverse planes, and medial and cranial base OC entry points were determined and recorded. Actual screw placement was achieved by similar placement; actual position and angulation were determined by postoperative CT scanning. Results: Screws were successfully inserted in 36 of 40 (90%) OCs. Four ruptures of the medial OC wall were on the left side. Actual screw placement did not damage the hypoglossal canal, and no screws pierced the medial or lateral OC walls. Females displayed significantly smaller left and right maximum screw lengths than males (p < 0.05); no other significant gender differences were noted. ConclusIon: The results can feasibly accommodate 4-mm OC screws for OA treatment. As in other populations, OC shape and size is smaller in females and varies in Chinese individuals, necessitating individualized imaging for good outcomes.

Özet

AMAÇ: Çinli hastaların oksipital kondiline (OK) bilgisayarlı tomografi (BT) ve iki boyutlu (2B) rekonstrüksiyon rehberliğinde vida yerleştirmenin uygunluğu incelendi. YÖNTEMve GEREÇLER:İntakt üst servikal omurga ve oksipital kemiklere sahip yirmi (40 OK) taze kadavra örneği yüzüstü pozisyonda yerleştirildi. 2B rekonstrüksiyon BT tarama görüntü teknolojisinin yardımıyla 4,0 mm çaplı sanal vidalar yerleştirilerek vida yerleştirme simülasyonu yapıldı. Maksimum vida uzunluğu, sagittal ve transvers düzlemlerde angülasyon ve medial ve kraniyal kaide OK giriş noktaları belirlendi ve kaydedildi. Fiili vida yerleştirme benzer yerleştirme ile elde edildi; fiili pozisyon ve angülasyon postoperatif BT taramayla belirlendi. BULGULAR: Vidalar 40 OK'nin 36'sında (%90) başarıyla yerleştirildi. Medial OK duvarındaki dört rüptür sol taraftaydı. Fiili vida yerleştirme hipoglossal kanala zarar vermedi ve hiçbir vida medial veya lateral OK duvarlarını delmedi. Kadınlarda sol ve sağ maksimum vida uzunlukları erkeklere göre önemli ölçüde daha küçüktü (p < 0,05); başka bir önemli cinsiyet farkı gözlenmedi. SONUÇ: Sonuçlar OA tedavisinde 4 mm OK vidaların kullanılabileceğini düşündürmektedir. Diğer popülasyonlarda olduğu gibi OK şekli ve büyüklüğü kadınlarda daha küçüktür ve Çinli bireyler arasında farklılık gösterip iyi bir sonuç alınması için bireyselleştirilmiş görüntüleme gerektirir.

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Cite This Article

YU, Z., MA, X., JIANG, J., JIN, X., LV, F., WANG, L., XIA, X., WANG, H. (2015). Feasibility of Screw Placement in the Occipital Condyle of Chinese Patients for Occipitocervical Arthrodesis: A Cadaveric Study. Turkish Neurosurgery, Cilt: 25 - Sayı: 4, 60–66. https://ajindex.com/articles/404739

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