Sonohata M, Asami A, Ogawa K, Nagamine S, Hotokebuchi T
Department of Orthopaedic Surgery, Faculty of Medicine, Saga University, Saga, Japan.
J Hand Surg Eur Vol. 2009 Feb;34(1):94-8. doi: 10.1177/1753193408097323. Epub 2009 Jan 7.
Three different methods of injection to obtain digital block anaesthesia were performed on 15 healthy volunteers to evaluate the success and extent of anaesthesia. We found that the traditional transthecal injection technique was inaccurate and the injected agent mainly flowed into the subcutaneous space, and did not remain within the sheath. The deep transthecal single injection kept the anaesthetic agent within the flexor tendon sheath, as intended. The duration of anaesthesia and the area anaesthetised by the subcutaneous injection and the traditional transthecal injection was similar and satisfactory. However, the anaesthetic area after the deep transthecal injection was significantly smaller than that of the other two techniques (P<0.01). A transthecal digital block offers no advantage over a simple subcutaneous digital block.
对15名健康志愿者进行了三种不同的注射方法以获得指部阻滞麻醉，以评估麻醉的成功率和范围。我们发现传统的经腱鞘注射技术不准确，注射的药物主要流入皮下间隙，未留在腱鞘内。深部经腱鞘单次注射按预期使麻醉剂保留在屈肌腱鞘内。皮下注射和传统经腱鞘注射的麻醉持续时间和麻醉面积相似且令人满意。然而，深部经腱鞘注射后的麻醉面积明显小于其他两种技术（P<0.01）。经腱鞘指部阻滞并不比简单的皮下指部阻滞更具优势。
