Post operative analgesic effect of intra-articular ropivacaine at the start and end of hip arthroscopy

In adult hip arthroscopy patients, does different dosage or pre-emptive timing of intra articular local anaesthetic have an effect on postoperative pain?

Status

Completed

Phases

Unknown

Study type

Interventional

Source

ANZCTR

Registry ID

ACTRN12614001121651

Enrollment

132

Registered

2014-10-23

Start date

2014-09-24

Completion date

2016-04-20

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

Hip arthroscopy is a surgical procedure that gives doctors a clear view of the inside of a hip joint. Little attention has been paid to the pain management of patients undergoing hip arthroscopy. The aim of this study is to demonstrate the difference in quality of analgesia between dosage and timing of IALA (intra-articular local anaesthetic) administration in the hip joint. 150 patients undergoing hip arthroscopy by the study surgeon in a private hospital setting will be recruited in the study. Group 1 (Group R100E) will be the control group and will be administered 100mg IA Ropivacaine at the end of the procedure, as per standard practice. Group 2 (Group R200E) will be administered 200mg IA Ropivacaine at the end of the procedure. Group 3 (Group R100BE) will be administered 100mg IA Ropivacaine immediately after access is gained to the joint space, and 100mg IA Ropivacaine IA at the end of the procedure. Post-operative pain will be recorded 1) using NRS-11 score in the recovery room and (2)using a VAS scale after 0.5, 1, 2, 4, 8, 12, and 24 hours post-operatively. Patients will receive a standardised general anaesthesia and intraoperative mulitimodal analgesia regimen. Total perioperative intravenous morphine equivalent analgesic requirements, antiemetic requiremeents, will be compared in the 24 hour postoperative period. Requirement for rescue fascia iliaca block will be recorded however the study is not powered to detect a difference in this requirement.

Interventions

Participants will be allocated into: 1) Standard Care Group: intra-articular injection of Ropivacaine 100mg at the end of hip arthroscopy 2) Treatment Group 1: intra-articular injection of Ropivacaine 200mg at the end of hip arthroscopy 3) Treatment Group 2: intra-articular injection of Ropivacaine 100mg at the beginning and end of hip arthroscopy

Study design

Allocation

Randomised controlled trial

Intervention model

Parallel

Primary purpose

Treatment

Masking

Blinded (masking used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

All

Age

18 Years to 75 Years

Healthy volunteers

Inclusion criteria

All adult patients attending hip arthroscopy at Bellbird Private Hospital performed by the senior author will be eligible to participate in the study.

Exclusion criteria

Patients will be excluded from the study if they had previous hip surgery, aged less than 18 or more than 75 years, diagnosis of chronic pain syndrome, contraindications to or allergic reactions to any of the standardized analgesic/ anaesthesia medication or local infiltrate components, ASA 3 or more and those requiring ketamine analgesia or regional block.

Outcome results