Prospective trial of selective ultrasound-guided obturator nerve blockade for total knee replacement.

Prospective trial on efficacy of selective ultrasound-guided obturator nerve blockade for total knee replacement

Status

Not yet recruiting

Phases

Phase 3

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12607000640404

Enrollment

Registered

2007-12-17

Start date

2008-02-01

Completion date

Unknown

Last updated

2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Prospective trial of selective ultrasound-guided obturator block to determine its efficacy in providing analgesia following total knee joint replacement.

Interventions

Selective ultrasound-guided obturator nerve blockade performed preoperatively (using ropivacaine 37.5-75mg), in addition to continuous femoral nerve blockade (ropivacaine 75-150mg) and spinal anaesthesia (isobaric bupivacaine 15-20mg). Postoperative analgesia provided by femoral nerve local anaesthetic infusion (ropivacaine 16-24mg/hr), and morphine patient-controlled analgesia device (morphine 1mg bolus at 5min lockout).

Study design

Allocation

Randomised controlled trial

Intervention model

Parallel

Primary purpose

Treatment

Masking

Blinded (masking used)

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Healthy volunteers

Inclusion criteria

Undergoing unilateral total knee replacement. Communicative in English.

Exclusion criteria

Without preexisting lower limb neurological deficits. Without opioid tolerance.

Outcome results