Knee Replacement Surgery
Conditions
Brief summary
The aim of this study is to examine the effect of a prolonged peripheral nerve block (utilizing continuous adductor canal block) on the level of pain after a knee replacement surgery
Detailed description
Knee replacement surgery is one of the common orthopedic surgeries for the treatment of chronic knee pain. The period after knee replacement surgery is accompanied by moderate to severe pain that affects the patient's ability to quickly return to function. Peripheral nerve blockers and analgesia of different types, administered as part of the anesthesia process, are optimal in controlling pain after surgery. After the surgery, the patients are admitted in the orthopedic inpatient department for 2-3 days on average after surgery for follow-up and early physical therapy necessary to achieve good results and return the patient to full function as soon as possible. The level of pain greatly affects the success rate of the patient's rehabilitation. Thus, since the duration of peripheral nerve block activity does not exceed 8-16 hours on average, it is suggested to treat the patients with a prolonged peripheral nerve block (utilizing continuous adductor canal block) for 24 hours after surgery.
Interventions
DRUGContinues peripheral block
ropivacaine (Naropin) 0.2% according to a protocol 8-10 cc per hour up to 24 hours after surgery
Sponsors
Assaf-Harofeh Medical Center
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)
Intervention model description
The study will include 50 patients who underwent a knee replacement surgery, who will be randomized to 2 groups. 6 hours after surgery the two groups will be connected to a prolonged block pump. One group will receive the peripheral block ropivacaine 0.2% according to the protocol of 8-10 cc per hour up to 24 hours after surgery. The second group will receive saline according to the same protocol
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
Inclusion criteria
* Female and male patients between the ages of 18 and 80 who have signed an informed consent form. * ASA is less than 3 * Spinal anesthesia
Exclusion criteria
* Patients with sensitivity to the anesthetic.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Pain level | during hospitalization (1-2 days) | Documentation of pain level during the hospitalization days every 12 hours (on a scale of 1-10) |
| Analgesic use | during hospitalization (1-2 days) | Documentation of pain level during the hospitalization days every 12 hours (on a scale of 1-10). Documentation of analgesic administration in hospitalization. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Physiotherapy | during hospitalization (1-2 days) | Documentation of the execution of a full or partial physical therapy program |
Contacts
Primary ContactSara Bar Yehuda, PhD
Outcome results
None listed