AzTrials
AzTrials

Patella FracturePhase 4NCT07006168

Effects Of Intra-Operative Intra-Articular Cocktail Injection In Patella Open Reduction And Internal Fixation

A Phase 4 study testing Ketorolac 15mg, Triamcinolone Acetonide 40mg and Ropivacaine HCL 1% 15ml in people with Patella Fracture, run by The University of Hong Kong at 1 site in Hong Kong.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

The objective of this study is to demonstrate the safety and efficacy of an intra-articular analgesics cocktail injection for post-operative patella fracture fixation patients, by comparing post-operative pain relief and functional recovery among study subjects who received the injection and those who did not receive… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Patella Fracture
What is being tested?
Ketorolac 15mg, Triamcinolone Acetonide 40mg and Ropivacaine HCL 1% 15ml
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
56 participants
Where
1 siteHong Kong
Study dates
1 Nov 2024to 31 Jul 2027
Phase
Phase 4
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • acute patella fracture requiring open reduction and internal fixation;
  • able to consent to surgery;
  • pre-morbid able to ambulate

Who cannot join

  • open fracture;
  • polytrauma;
  • previous knee arthroplasty;
  • history of chronic pain,
  • insulin-dependent diabetes mellitus, or peptic ulcer disease;
  • chronic users of glucocorticoids, immunosuppressants, or immune-modulating agents, or of strong opioids (e.g.: morphine, fentanyl, hydromorphone, methadone, oxycodone, or meperidine);
  • hepatitis B or C carrier;
  • renal impairment (creatinine [Cr], >200 mmol/L)

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Christian FANG contact

+852 22554581

cfang@hku.hk

Christian Fang contact

cfang@hku.hk

Hong Kong1 site, 1 recruiting
  • Queen Mary Hospital, The University of Hong Kong

    Hong Kong, Hong Kong

    Christian FANG, +852 22554581, cfang@hku.hk

    Recruiting

Other trials in Hong Kong

About this study

Official title: Effects Of Intra-Operative Intra-Articular Cocktail Injection In Patella Open Reduction And Internal Fixation (ORIF): A Single Centre, Double Blinded, Randomised Control Trial

The objective of this study is to demonstrate the safety and efficacy of an intra-articular analgesics cocktail injection for post-operative patella fracture fixation patients, by comparing post-operative pain relief and functional recovery among study subjects who received the injection and those who did not receive the injection. Secondary objective is to demonstrate the health economic effects of intra-articular analgesics cocktail injection by reducing length of hospital stay and reducing bed-stay related complications.

Read the detailed description

This is a single-centre, double-blinded, randomised control trial that evaluates the efficacy of intra-articular analgesics cocktail injection in post-operative pain relief and functional recovery for fractured patella fixation patients. The recruited study subjects will be randomised to the two study groups respectively in a 1:1 randomisation ratio.

Patella is the largest sesamoid bone in the human body, it acts as the fulcrum of our knee extensor apparatus and is important during the gait cycle. Patella fracture commonly occurs after a fall on a flexed knee. Treatment can be conservative or surgical with open reduction and internal fixation. Patients often experience significant pain around the knee post-operatively, limiting their walking ability and hindering their rehabilitation. As a result, total hospital stay will be prolonged, leading to hospital stay-related morbidity and additional healthcare economic burden.

Previous studies have shown that the use of an analgesic cocktail injection in arthroplasty cases can significantly reduce early postoperative pain and provide better early motion. The cocktail regime is as follows for a unilateral joint:

Ketoralac 15mg Ropivacaine 1% 15ml 0.9% Normal Saline 35ml Adrenaline 1:1000 0.5ml Stacort-A Triamcinolone Acetonide 40mg Total Cocktail Volume ~50ml

After fracture fixation, patients in the intervention group will receive an intra-articular injection of the above analgesic cocktail, while patients in the control group will not receive an injection.

Herein this study, the investigators hope to demonstrate the safety and efficacy of an intra-articular analgesics cocktail injection for post-operative patella fracture fixation patients.

Being tested
Ketorolac 15mg, Triamcinolone Acetonide 40mg, Ropivacaine HCL 1% 15ml, 0.9 % Normal Saline 35ml, Adrenaline 1:1000 0.5ml
Keywords
Intra-Articular analgesic injection, Pain relief, Open Reduction and Internal Fixation, Functional Recovery, Rehabilitation, Range of motion, Post-operative recovery
Medical subject headings
Patella Fracture

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Ketorolac 15mgDrug

    An intra-articular cocktail injection ( Ketoralac 15mg, Ropivacaine 1% 15ml, 0.9% Normal Saline 35ml, Adrenaline 1:1000 0.5ml, Stacort-A Triamcinolone Acetonide 40mg) will be injected into the surgical site after fracture fixation surgery.

  • Triamcinolone Acetonide 40mgDrug

    An intra-articular cocktail injection ( Ketoralac 15mg, Ropivacaine 1% 15ml, 0.9% Normal Saline 35ml, Adrenaline 1:1000 0.5ml, Stacort-A Triamcinolone Acetonide 40mg) will be injected into the surgical site after fracture fixation surgery.

  • Ropivacaine HCL 1% 15mlDrug

    An intra-articular cocktail injection ( Ketoralac 15mg, Ropivacaine 1% 15ml, 0.9% Normal Saline 35ml, Adrenaline 1:1000 0.5ml, Stacort-A Triamcinolone Acetonide 40mg) will be injected into the surgical site after fracture fixation surgery.

  • 0.9 % Normal Saline 35mlDrug

    An intra-articular cocktail injection ( Ketoralac 15mg, Ropivacaine 1% 15ml, 0.9% Normal Saline 35ml, Adrenaline 1:1000 0.5ml, Stacort-A Triamcinolone Acetonide 40mg) will be injected into the surgical site after fracture fixation surgery.

  • Adrenaline 1:1000 0.5mlDrug

    An intra-articular cocktail injection ( Ketoralac 15mg, Ropivacaine 1% 15ml, 0.9% Normal Saline 35ml, Adrenaline 1:1000 0.5ml, Stacort-A Triamcinolone Acetonide 40mg) will be injected into the surgical site after fracture fixation surgery.

Study groups in NCT07006168
Study groupRoleWhat they receive
Intra-Articular Cocktail InjectionExperimentalAfter fixation, an intra-articular cocktail injection is injected into the surgical site. The intra-articular cocktail regime: Ketoralac 15mg, Ropivacaine 1% 15ml, 0.9% Normal Saline 35ml, Adrenaline 1:1000 0.5ml, Stacort-A Triamcinolone Acetonide 40mg. The total cocktail volume is approximately 50ml.
Receives: Drug: Ketorolac 15mg; Drug: Triamcinolone Acetonide 40mg; Drug: Ropivacaine HCL 1% 15ml; Drug: 0.9 % Normal Saline 35ml; Drug: Adrenaline 1:1000 0.5ml
No InjectionNo interventionNo injection will be given to the patient.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Pain as measured by Numerical Patient Reported Scale (NRPS)

    Numerical Patient Reported Scale (NRPS), 0 (no pain) to 10 (worst pain imaginable)

    Measured: Pre-op, Post-op Day 1 to 3

  2. Maximum Active Knee Flexion

    The patient's Knee flexion is measured by a physiotherapist

    Measured: At post-op Day 1 to 3

  3. Oral analgesics consumed

    The level of the analgesic consumed (non-opioids, weak opioids, strong opioids), and the frequency of consumption

    Measured: Post-operative 2 weeks period

  4. Tegner Lysholm Knee Score

    The Lysholm Knee Score calculates and grades an overall score from 0 to 100 based on 8 domains: squatting, locking, pain, stair climbing, support, instability, and edema. Scores between 95 and 100 are regarded as exceptional, 84 and 94 as acceptable, 65 to 83 as fair, and less than 65 as poor.

    Measured: Post-op Day 14

  5. Knee Injury and Osteoarthritis Outcome Score (KOOS)

    The KOOS's five patient-relevant dimensions are scored separately: Pain (nine items); Symptoms (seven items); ADL Function (17 items); Sport and Recreation Function (five items); Quality of Life (four items). A Likert scale is used, and all items have five possible answer options scored from 0 (No problems) to 4 (Extreme problems), and each of the five scores is calculated as the sum of the items included. Scores are transformed to a 0-100 scale, with zero representing extreme knee problems and 100 representing no knee problems as common in orthopaedic scales and generic measures. Scores between 0 and 100 represent the percentage of total possible score achieved.

    Measured: Post-op Day 14

  6. 9-item Quality of Recovery Score (QoR-9 Score)

    The QoR-9 has 9 questions evaluating the quality of recovery after surgery and anaesthesia. It is a patient-rated score ranging from 0 (worst) to 2 (best).

    Measured: Post-op Day 1 to 3

Secondary outcomes (3)
  1. Length of hospital stay

    The number of days the patient was hospitalised

    Measured: Through study completion, an average of 1 year

  2. Time to radiological bony union

    X-rays will be taken at different follow-up intervals (post-op 2 weeks, 6 weeks, 3 months, 6 months, 12 months). The X-rays will be assessed for bony union at the surgical site.

    Measured: Through study completion, an average of 1 year

  3. Incidence of Complications

    Complications such as fracture site infection, loss of reduction, non-union, and malunion will be assessed and recorded

    Measured: Through study completion, an average of 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted5 Jun 2025
  2. Study start1 Nov 2024
  3. Primary completion31 Dec 2026 (estimated)
  4. Study completion31 Jul 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Patients will be allocated to receive either Intra-articular Cocktail Injection (IA Cocktail) OR receive no Injection (Control).
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
56 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07006168
Sponsor's protocol ID
UW 24-611
Status last verified
Apr 2025
First submitted
15 May 2025
Last updated
5 Jun 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Anonymized dataset to be included as supplementary data in the final publication

Publications

  • Baid M, Narula S, Manara JR, Blakeney W. Evolution in the Management of Patella Fractures. J Clin Med. 2024 Feb 29;13(5):1426. doi: 10.3390/jcm13051426.

    PubMed 38592262
  • Petrie J, Sassoon A, Langford J. Complications of patellar fracture repair: treatment and results. J Knee Surg. 2013 Oct;26(5):309-12. doi: 10.1055/s-0033-1353990. Epub 2013 Aug 16.

    PubMed 23955187

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Ketorolac 15mg, Triamcinolone Acetonide 40mg and Ropivacaine HCL 1% 15ml in people with Patella Fracture, run by The University of Hong Kong at 1 site in Hong Kong.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 5 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Hong Kong. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Christian FANG (+852 22554581, cfang@hku.hk), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Pain as measured by Numerical Patient Reported Scale (NRPS) (time frame: Pre-op, Post-op Day 1 to 3). The study lists 6 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07006168, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Jun 2025.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in