수술 용 나사를 이용한 마취, 수술 및 수확 방법<em> In Vivo</em> 돼지의 허리 척추 모델
Summary
여기에서는 생체 내 돼지 허리 받침 모델을 사용하여 경정맥 나사를 평가하는 방법을 소개합니다.
Abstract
척추 경 나사 고정은 척추 질환의 치료에있어 가장 중요한 표준입니다. 그러나 척추 수술 후 척추 경 나사못을 느슨하게하는 문제에 대한 많은 연구가있어 심각한 문제입니다. 이 문제를 해결하기 위해 다양한 유형의 척추 경 나사못을 검사하여 척추골에서 좋은 고정 강도와 골 유착을 가진 환자를 확인했습니다. 돼지 척추는 해부학 적 크기, 기계적 특성 및 비용으로 인해 척추 경 나사의 평가에서 인간의 척추에 대한 좋은 대안입니다. 여러 연구에 따르면 척추 모형이 돼지 모형에서 효율적이라는보고가 있지만, 돼지 모형을 사용한 척추 경 나사 평가에 대한 자세한 프로토콜은 아직 없습니다. 여기, 우리 는 생체 내 돼지 허리 받침 모델을 사용하여 Transedicular 나사를 평가하기위한 상세한 방법을 설명합니다. 여기에 제공된 마취, 척추 수술 및 수확에 대한 기술 세부 정보는 t경 나사못 고정 모델.
Introduction
Transpedicular screw fixation is a gold-standard treatment for degenerative lumbar spine and bursting fracture because it involves three columns of the spine and achieves stabilization1,2. However, most patients who undergo such surgery also have osteoporosis3,4. Many studies have evaluated the fixation strength and the osseointegration status of transpedicular screws, because the loosening of pedicle screws currently in use has been reported in patients with osteoporosis5,6.
The porcine spine is similar to the human spine in terms of size. It is less expensive compared to a primate model7. Furthermore, an in vivo mechanical study has demonstrated that the quadruped porcine spine is essentially loaded in the same way as that of the human spine8, which is why many researchers use porcine spines for studies on the prevention of pedicle screw loosening. However, it takes several months to study pedicle screws in the porcine spine because identifying the long-term stability of pedicle screws takes times. In order to compare different types of screws in the vertebral body, it is necessary to insert the screws in similar positions. Therefore, researchers should be well-acquainted with proper anesthesia techniques, standardized surgical protocols, and harvest procedures before performing any experiments. Here, we describe a detailed method for anesthesia, surgery, and harvest for the evaluation of pedicle screw fixation using a porcine spine model, including ex vivo imaging, histology, and strength testing.
Protocol
Representative Results
Discussion
돼지 척추의 경정맥 나사의 평가에는 많은 시간과 노력이 요구됩니다. 첫째, 소형 돼지는 큰 동물입니다. 동물 관리 및 마취를 위해 연구원은 전문적인 프로토콜이 필요합니다. 둘째, 수술은 인간의 수술과 비슷한 환경을 유지해야합니다. 돼지 척추에서 척추 경 나사를 평가하는 목적은 인간에게 적용 할 수있는 효율적인 나사를 개발하는 것입니다. 셋째, 척추 경 나사의 장기 안정성을 평가하는 …
Disclosures
The authors have nothing to disclose.
Acknowledgements
이 연구는 전북 대학교 의과 대학 생물 의학 연구소 (CNUH-BRI)가 후원하는 보조금 (CNUH-BRI-2012-02-005)의 지원을 받았다.
Materials
| Miniature pig | OrientBio | ||
| Atropine | Jeil pharmaceutical | A04900241 | Anesthesia |
| Over-the needle plastic catheter | BD | REF382412 | Maintenance of IV line |
| Ketamine | Yuhan | A04502441 | Anesthesia |
| Xylazine | Bayer Korea | A00800071 | Anesthesia |
| Laryngoscope | Karl storz | Intubation | |
| Endotracheal tube | Covidien | Intubation | |
| Isoflurane | JW pharmaceutical Co | A02104781 | Anesthesia |
| Eye ointment | Hanlim pharma | A37851721 | Protection of pig's eye |
| Cefazolin | Donga pharma | A01503951 | Antibiotics |
| Saline | JW pharmaceutical Co | A02151392 | Maintenance of fluid homeostasis |
| Fentanyl | Hana pharm | C03200032 | Pain control |
| Enrofloxacin | Bayer | 93106-60-6 | Antibiotics |
| Morphine | Myungmoon pharma | C03700091 | Pain control |
| Meloxicam | Boehringer Ingelheim | A07600711 | Antibiotics |
| Povidone-iodine | Hyundai pharma | Wound dressing | |
| Scalpel blade size 15 | Braun | I1 BB515 | Skin incision |
| Cobb elevator | Codman | 65-2546 | Dissection of muscle |
| Burr | Medtronic | Making of starting point of screw | |
| Rongeur | Aesculap | FO515R | Making of starting point of screw |
| Guide pin (K-wire) | CE | 01067803 | Guidance of screw trajectory |
| C-arm | GE | OEC 9800 plus | Guidance of screw trajectory |
| Portable X-ray | Siemens | Mobile XP hybrid | Guidance of screw trajectory |
| Pedicle probe | OtisBiotech | SPI-02-01 | Guidance of screw trajectory |
| Pedicle sounding device | OtisBiotech | SPI-03-01 | Guidance of screw trajectory |
| Pedicle screw | OtisBiotech | MS-40025 | |
| Posterior fixator systems | OtisBiotech | ||
| Rod | OtisBiotech | ROD-60140 | Rigid fixation between screws |
| Universal handle | OtisBiotech | SPI-08-01 | To fix the screws to the rod |
| Straight socket wrench | OtisBiotech | SPI-06-01 | To fix the screws to the rod |
| counter torque wrench | OtisBiotech | SPI-07-01 | To fix the screws to the rod |
| Bulb irrigation syringe | Hyupsug medical | HS-IR-140 | Irrigation |
| Silicone drain | Sewon medical | 2205-006 | To drain the fluid at the surgical site |
| 3.0 metric absorbable suture | Ethicon | BA1673H | Muscle suture |
| 2.0 metric nonabsorbable nylon suture | Ethicon | W1626T | Skin suture |
| Gauze | Kingphar Korea | KP120-06 | |
| Pentobarbital | Hanlim pharma | 645301221 | Euthanasia |
| Oscillating saw | Zimmer | Harvest spine | |
| Tower forceps | Aesculap | BF461R | Harvest spine |
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