A Study of Ropivacaine Combined With Different Concentrations of Methylene Blue Fascia Iliaca Block in Postoperative Analgesia, Cognition, and Hip Function Recovery in Patients Undergoing Hip Arthroplasty
- Conditions
- Femoral Neck Disease
- Interventions
- Registration Number
- NCT06520306
- Lead Sponsor
- Wang wanxia
- Brief Summary
Total hip arthroplasty (THA) is a commonly used treatment for hip lesions, but it is often accompanied by persistent pain after surgery, which obviously affects the quality of life of patients, so perfect postoperative analgesia is particularly important for the rapid recovery of patients. Peripheral nerve blocks are often used as postoperative analgesia for THA, and fascia iliaca compartment block (FICB) is the preferred nerve block for THA due to its good postoperative analgesic effect and fewer postoperative adverse reactions. However, the effect of nerve block with ropivacaine alone is short, and the postoperative analgesia time is limited, which seriously affects the patient\'s surgical recovery. Therefore, prolonging the postoperative analgesic time is an urgent problem to be solved by FICB, and some scholars recommend the combined use of local anesthetic adjuvants to prolong the block time, which is an effective and safe method. In this study, a long-acting analgesic drug, methylene blue, was selected as an adjuvant for ropivacaine for FICB, but there was no unified clinical standard for the postoperative analgesic concentration of methylene blue.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ENROLLING_BY_INVITATION
- Sex
- All
- Target Recruitment
- 75
- Hip replacement surgery is indicated
- ASA Class II - Class III
- No history of analgesic or local anesthetic allergy
- No history of alcohol abuse or narcotic drug abuse
- Patients and their families have given informed consent and signed the informed consent form
- Patient or family refusal to participate in the study
- Severe coagulation abnormalities
- Local anesthetic allergy
- Severe psychiatric illness or other communication disorder
- There is an infection at the puncture site
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Dilute 0.25% ropivacaine + 20 mg methylene blue to 30 ml Ropivacaine combined with methylene blue for iliac fascia block - 0.25% ropivacaine + 40 mg methylene blue diluted to 30 ml Ropivacaine combined with methylene blue for iliac fascia block -
- Primary Outcome Measures
Name Time Method Mini-Mental State Examination (MMSE) Seventh day after surgery An examination tool to assess cognitive status
visual analogue scale（VAS） The first, third, and seventh days after the surgery Use a swimming ruler about 10 cm long, marked with 10 ticks on one side, and "0" and "10" at each end. A score of 0 indicates no pain, a score of 10 indicates the most severe pain that is unbearable, and the higher the score, the greater the degree of pain
Harris Hip Scoring System On the seventh day after surgery Harris (1969) proposed a scoring system to evaluate the functional status and postoperative efficacy of patients with artificial hip arthroplasty
- Secondary Outcome Measures
Name Time Method Number of postoperative salvage analgesia From the end of the surgery to the seventh day after the surgery Walking distance for the first time getting out of bed From the end of the surgery to the seventh day after the surgery Number of exercises to get out of bed within 7 days of surgery From the end of the surgery to the seventh day after the surgery
Trial Locations
- Locations (1)
Zhang Yang
🇨🇳Taizhou, China