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首页> 外文期刊>Tierarztliche Praxis, Ausgabe K. Kleintiere >Arthroscopic assisted femoral tunnel drilling for the intra-articular anatomic cranial cruciate ligament reconstruction in dogs
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Arthroscopic assisted femoral tunnel drilling for the intra-articular anatomic cranial cruciate ligament reconstruction in dogs

机译：关节镜辅助股骨隧道钻孔在犬关节内解剖颅十字韧带重建中的应用

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Objective: To develop and test an arthroscopic aiming device for extra- to intra-articular femoral tunnel drilling emerging at the center of the femoral insertion of the cranial cruciate ligament (CrCL) in medium to large breed dogs. Material and methods: Hind limbs (n = 12) of six cadaveric dogs (>= 20 kg bodyweight). One hindlimb from each cadaver was randomly chosen. On a standard medio-lateral stifle radiograph the caudo-cranial position of the CrCL center was measured and transferred onto an adjustable aiming device. After arthroscopic debridement of the CrCL the aiming device was hooked behind the lateral condyle and a 2.4 mm guide pin was placed from extra- to intra-articular. The intra-articular position of the resulting bone tunnel was evaluated radiographically as well as compared to the anatomic CrCl center of the contralateral hindlimb using 3D renderings. Results: According to the postoperative radiographs all six drill tunnels were located at or near the CrCL center. The median absolute 3D error from the anatomical center of the CrCL was 0.6 mm (range: 0.2-0.9 mm). Conclusion: Precise anatomic placement of the femoral tunnel for intra-articular repair of the CrCL was achieved using an adjustable aiming device. Clinical relevance: The proposed technique will reduce femoral tunnel misplacement when performing intra-articular CrCL repair in dogs. In combination with the published technique for arthroscopic tibial tunnel drilling using a similar aiming device, the technical requirements for arthroscopic assisted tunnel positioning for anatomical graft replacement are available.
机译：目的：开发并测试一种关节镜瞄准装置，用于在大中型犬的颅交叉韧带（CrCL）股骨插入中心出现的股外至关节内隧道钻探。材料和方法：六只尸体犬（> = 20公斤体重）的后肢（n = 12）。从每个尸体中随机选择一个后肢。在标准的中外侧窒息射线照相上，测量CrCL中心的颅骨颅骨位置，并将其转移到可调节的瞄准装置上。在关节镜下清除CrCL后，将瞄准装置钩在外侧con的后面，并从关节外至关节内放置一个2.4 mm的导针。使用3D渲染图，通过射线照相术以及与对侧后肢的解剖CrC​​l中心进行比较，评估了所得骨隧道的关节内位置。结果：根据术后X射线照片，所有六个钻洞均位于CrCL中心或附近。来自CrCL解剖中心的中位绝对3D误差为0.6毫米（范围：0.2-0.9毫米）。结论：使用可调式瞄准装置实现了股骨隧道的精确解剖放置，以实现CrCL的关节内修复。临床意义：拟议的技术将减少犬关节内CrCL修复时的股骨隧道错位。与使用类似瞄准装置的关节镜胫骨隧道钻孔技术的公开技术相结合，可获得用于解剖学置换的关节镜辅助隧道定位的技术要求。

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