Degenerative Arthritis
Conditions
Brief summary
Adductor canal catheters are being used to provide continuous postoperative analgesia after total knee arthroplasty surgery (TKA). There is much debate about where is the best position of continuous adductor canal block in patients undergoing TKA. Therefore, the investigators aim to compare the postoperative pain at three different level of continuous adductor canal block. Ninety six patients scheduled for total knee arthroplasty will be randomly divided into the three groups. In group 1, the adductor canal catheter is inserted at femoral triangle apex (the proximal end of the adductor canal). In group 2, the adductor canal catheter is inserted femur length/15\*2 cm above the location where the nerve block performed in group 1. In group 3, the adductor canal catheter is inserted femur length/15cm below the location where the nerve block performed in group 1.
Interventions
PROCEDUREthe three different sites of continous adductor canal block: the adductor canal catheter is inserted at femoral triangle apex
In group 1, the adductor canal catheter is inserted at femoral triangle apex (the proximal end of the adductor canal).
PROCEDUREthe three different sites of continous adductor canal block: the adductor canal catheter is inserted femur length/15*2 cm above the location
In group 2, the adductor canal catheter is inserted femur length/15\*2 cm above the location where the nerve block performed in group 1.
PROCEDUREthe three different sites of continous adductor canal block: the adductor canal catheter is inserted femur length/15 cm below the location
In group 3, the adductor canal catheter is inserted femur length/15 cm below the location where the nerve block performed in group 1.
Sponsors
Yonsei University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)
Masking description
Investigator and outcomes assessor are blinded to group assignment.
Intervention model description
Ninety six patients scheduled for total knee arthroplasty will be randomly divided into the three groups. In group 1, the adductor canal catheter is inserted at femoral triangle apex (the proximal end of the adductor canal). In group 2, the adductor canal catheter is inserted femur length/15\*2 cm above the location where the nerve block performed in group 1. In group 3, the adductor canal catheter is inserted femur length/15\*2 cm below the location where the nerve block performed in group 1.
Eligibility
Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* 1\. Patients undergoing total knee arthroplasty
Exclusion criteria
* 1\. Patients who have infection or had surgery on the thigh * 2\. The subject is a foreigner or illiterate * 3\. Patients who have cognitive dysfunction
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Pain : Visual Analogue Scale (VAS) for pain | Baseline (Before surgery) | The visual analog scale(VAS) is a validated, subjective measure for acute and chronic pain. Scores are recorded by making a handwritten mark on a 10-cm line that represents a continuum between no pain (0) and worst pain. (10). The ends are defined as the extreme limits of the parameter to be measured(symptom,pain,health) orientated from the left(0, worst) to the right(10, best). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| muscle strength | Baseline (Before surgery) | Quadriceps strength of both legs was assessed by placing the dynamometer on the anterior of the ankle, between the malleoli. |
Countries
South Korea
Outcome results
None listed