Comparison of two concentrations of local anaesthetic for pain relief after shoulder rotator cuff repair

A comparison of 0.2 and 0.4% Ropivacaine for Ambulatory Patient Controlled Interscalene Analgesia after Rotator Cuff Repair

Status

Completed

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12608000591358

Enrollment

Registered

2008-11-21

Start date

2008-10-15

Completion date

2009-04-01

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

If the primary hypothesis is confirmed, this study will provide evidence supporting the use of a higher concentration of ropivacaine than that which is routinely used in Auckland. At present the community standard is ropivacaine 0.2% for this technique. This may result in future patients experiencing less postoperative pain after rotator cuff repair. Potential benefits might include a lower incidence of post rotator cuff repair chronic pain.

Interventions

0.4% ropivacaine for continuous interscalene block after rotator cuff repair for 48 hours postoperatively as required by the patient.

Study design

Allocation

Randomised controlled trial

Intervention model

Parallel

Primary purpose

Treatment

Masking

Blinded (masking used)

Eligibility

Sex/Gender

All

Age

0 to No maximum

Healthy volunteers

Inclusion criteria

Patients requiring continuous interscalene analgesia following rotator cuff repair under the care of the two investigators.

Exclusion criteria

1. Patient refusal/inability to consent, age no limits 2. Allergy amide local anaesthetic (LA) drugs 3. Existing neurological disorders/neuropathy of the operative extremity 4. Infection at site of needle puncture 5. Severe respiratory disease 6. Chronic opioid therapy 7. Intolerance of all non-steroidal anti-inflammatory drugs (NSAIDs).

Outcome results