The Optimal Dosage of Ropivacaine for Arthroscopic Knee Surgery
Status:
Not yet recruiting
Trial end date:
2022-03-01
Target enrollment:
Participant gender:
Summary
Fast-track Surgery (FTS ) refers to the application of various proven effective methods in
perioperative period to reduce stress and complications and accelerate the recovery of
patients.Nowadays, FTS has been successfully applied in clinical practice."FTS" truly
embodies the concept of "patient-centered" and the direction of medical development.
Lower limb joint damage (the meniscus, and patellar ligament, etc.) is the joint movement
orthopedic common disease, often characterized by joint swelling, pain, sports relaxation
instability, thigh muscle atrophy, most can't continue to pursue the original movement, even
unbend and flexor limited activity, result in patients with walking difficulties, serious
impact on the patient's quality of life.Practice has proved that minimally invasive surgery
under arthroscopy is the best way to treat such injuries. According to literature reports,
the average hospital stay after arthroscopy is 5~7 days, while successful application of FTS
can shorten it to 2~3 days.
Anesthesia plays an important role in the process of FTS.Compared with general anesthesia,
intra-spinal anesthesia can effectively reduce the incidence of postoperative complications
in patients, such as ventilator-related lung injury, deep vein thrombosis, cardiovascular and
cerebrovascular accidents, and acute renal failure.Ropivacaine is a long-acting amide local
anesthetic. Compared with bupivacaine, it is more and more widely used in spinal anesthesia
due to its advantages of lower degree of motor nerve block and weaker toxicity to central
nervous system and cardiac.However, the optimal dosage of ropivacaine for arthroscopic
surgery is still unclear. Conventional dosage makes patients unable to move 2-4h after
surgery and unable to urinate autonomically. Therefore, this study aims to optimize the
dosage of ropivacaine for spinal anesthesia and enable patients to recover motor function at
an early stage.