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A trial determining whether injections of local anaesthetic in front and behind the hip can make arthroscopic hip surgery less painful

In patients having arthroscopic hip surgery are ultrasound guided anterior and posterior pericapsular injections of local anaesthetic as good as or better than injections of saline alone for relief of pain following surgery

Status
Not yet recruiting
Phases
Phase 4
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12611000714987
Enrollment
100
Registered
2011-07-11
Start date
2011-11-01
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

Many patients find hip arthroscopy surgery to be very painful in the first few hours following the operation. We think this may be due to the swelling of the hip joint capsule that occurs during this type of surgery. The purpose of this study is to determine whether injecting local anaesthetic medication on both the front and the back of the hip joint, at the start of the operation, will make this surgery less painful.

Interventions

Ultrasound guided injection of single 10ml ropivacaine 0.75% dose, both anteriorly and posteriorly, into the potential space superficial to hip capsule, immediately prior to surgery.

Sponsors

University of Auckland
Lead SponsorUniversity

Study design

Allocation
Randomised controlled trial
Intervention model
Parallel
Primary purpose
Treatment
Masking
Blinded (masking used)

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

Patient’s requiring elective unilateral arthroscopic hip surgery under the anaesthetic care of the principal investigator and the co-investigators.

Exclusion criteria

1. Patient refusal 2. Any communicative problem due to deafness or cognitive impairment 3. Allergy to amide local anaesthetic drugs 4. Chronic opioid usage 5. Patient intolerant of all NSAID drugs 6. Infection at site of needle puncture

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026