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Trial registered on ANZCTR
Registration number
ACTRN12620001117909p
Ethics application status
Submitted, not yet approved
Date submitted
20/07/2020
Date registered
29/10/2020
Date last updated
29/10/2020
Date data sharing statement initially provided
29/10/2020
Type of registration
Prospectively registered
Titles & IDs
Public title
Two-corner fusion versus four-corner fusion for the treatment of wrist arthritis
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Scientific title
The effectiveness of two-corner fusion versus four-corner fusion for the treatment of wrist arthritis associated with chronic scapholunate ligament tear (SLAC) or chronic scaphoid nonunion (SNAC): a prospective randomized controlled trial
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Secondary ID [1]
301407
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None
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Wrist arthritis
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Scaphoid non-union advanced collapse (SNAC)
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Scapholunate advanced collapse (SLAC)
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Condition category
Condition code
Surgery
315754
315754
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0
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Surgical techniques
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Musculoskeletal
316674
316674
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0
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Osteoarthritis
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
This is a prospective randomised controlled trial of two-corner fusion versus four-corner fusion for wrist arthritis associated with scapholunate advanced collapse (SLAC) or scaphoid non-union advanced collapse (SNAC).
Patients with wrist pain and stiffness refractory to conservative measures, will be randomised to either a two- or four-corner fusion. Four-corner fusion (control gorup) is the routine practice for these conditions: it involves scaphoid excision and fusion of the lunate, capitate, triquetrum and hamate bones.
Two-corner fusion (study group) involves excision of scaphoid and triquetrum bones, and fusion of the luno-capitate joint.
Both surgeries will be performed by Orthopaedic surgeons with fellowship sub-specialty training in hand surgery. Duration of surgery is similar for both surgeries, being 60-90 minutes. No additional training is required for 2-corner fusion surgery.
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Intervention code [1]
317714
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Treatment: Surgery
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Comparator / control treatment
4 corner fusion is the control group. This is the standard practice for wrist arthritis associated with SNAC/SLAC wrist conditions.
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Control group
Active
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Outcomes
Primary outcome [1]
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Patient Reported Outcome Measures (PROMS)- Mayo Wrist Score
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Assessment method [1]
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Timepoint [1]
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Baseline, 2, 6 weeks
6 (Primary Endpoint), 12 and 24 months
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Primary outcome [2]
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PROMs: Disabilities of Arm, Shoulder and Hand (DASH) score
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Assessment method [2]
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Timepoint [2]
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2, 6 weeks
6 (Primary Endpoint), 12 and 24 months
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Primary outcome [3]
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PROMS: Patient-rated Wrist Evaluation (PRWE)
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Assessment method [3]
324800
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Timepoint [3]
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2, 6 weeks
6 (Primary Endpoint), 12 and 24 months
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Secondary outcome [1]
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Rates of Union based on 6 weeks post-operative CT; follow up imaging if not united at 6 weeks (6 and 12 months)
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Assessment method [1]
384803
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Timepoint [1]
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6 weeks, 6 and 12 months
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Secondary outcome [2]
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Complications based on clinical examination (e.g. wound infection) and any subsequent need for surgery (e.g. non-union). The complications will be documented prospectively during the trial. Need for subsequent surgery will be flagged prospectively, and data from the surgery will be extracted from the hospital records.
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Assessment method [2]
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Timepoint [2]
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2, 6 weeks
6, 12 and 24 months
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Secondary outcome [3]
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Surgical time as measured from hospital records: nurse recorded surgical start and finish times and tourniquet time
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Assessment method [3]
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Timepoint [3]
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At surgery
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Secondary outcome [4]
384806
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Cost of implants used (screws/plate constructs) as assessed via hospital records
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Assessment method [4]
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Timepoint [4]
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At Surgery
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Secondary outcome [5]
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Patient Satisfaction via study-specific questionnaires
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Assessment method [5]
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Timepoint [5]
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12 months and 24 months
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Eligibility
Key inclusion criteria
Patients with wrist pain and x-ray findings of SLAC/SNAC who have failed
conservative therapy, which includes analgesia, splinting, physio/hand therapy +/- trial of corticosteroid injections
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
- Pregnant women,
- Children and/or young people (<18 years)
- People with an intellectual or mental impairment
- People highly dependent on medical care
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Allocation is not concealed
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Via a random sequence generator
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Parallel
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Other design features
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Phase
Not Applicable
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Type of endpoint/s
Safety/efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Not yet recruiting
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Date of first participant enrolment
Anticipated
1/11/2020
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
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Sample size
Target
40
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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Monash Medical Centre - Clayton campus - Clayton
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Recruitment hospital [2]
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Glenferrie Private Hospital - Hawthorn
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Recruitment hospital [3]
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The Valley Private Hospital - Mulgrave
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Recruitment hospital [4]
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St John of God Hospital - Berwick - Berwick
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Recruitment postcode(s) [1]
30799
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3168 - Clayton
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Recruitment postcode(s) [2]
30800
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3122 - Hawthorn
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Recruitment postcode(s) [3]
30801
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3170 - Mulgrave
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Recruitment postcode(s) [4]
30802
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3806 - Berwick
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Funding & Sponsors
Funding source category [1]
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Self funded/Unfunded
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Name [1]
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A/Prof Eugene Ek
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Address [1]
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Division of Hand Surgery, Department of Orthopaedic Surgery
Dandenong Hospital
David St
Dandenong VIC 3175
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Country [1]
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Australia
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Funding source category [2]
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Self funded/Unfunded
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Name [2]
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Mr Jason Harvey
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Address [2]
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Division of Hand Surgery, Department of Orthopaedic Surgery
Dandenong Hospital
David St
Dandenong VIC 3175
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Country [2]
306478
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Australia
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Funding source category [3]
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Self funded/Unfunded
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Name [3]
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Mr Steven Tham
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Address [3]
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Division of Hand Surgery, Department of Orthopaedic Surgery
Dandenong Hospital
David St
Dandenong VIC 3175
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Country [3]
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Australia
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Primary sponsor type
Individual
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Name
A/Prof Eugene Ek
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Address
Division of Hand Surgery, Department of Orthopaedic Surgery
Dandenong Hospital
David St
Dandenong VIC 3175
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
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Address [1]
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Country [1]
306745
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Ethics approval
Ethics application status
Submitted, not yet approved
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Ethics committee name [1]
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Monash Health
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Ethics committee address [1]
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Monash Ethics Monash Medical Centre, Clayton 246 Clayton Road Clayton VIC 3168
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
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11/07/2018
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Approval date [1]
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Ethics approval number [1]
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RES-18-0000-366A
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Summary
Brief summary
The wrist pain in SLAC/SNAC arthritis comes from wear and break down between specific bones in the wrist. By fusing the affected bones, surgeons can improve pain while maintaining some range of motion. To accomplish this, the ulnar-sided (the side of your little finger) bones can be fused (known as four-corner fusion). A second option exists where an extra bone is removed and the remaining bones are fused in the same way as for the four-corner fusion. (This is known as a 2-corner fusion). Surgeons have more commonly performed four-corner fusion for this problem. Two corner fusions have gained popularity and the outcomes of surgery with these two methods are similar. In addition to treating the pain from the arthritic joints, a two-corner fusion may offer improved range of motion compared to the four-corner fusion. This research will provide valuable information towards improving knowledge of SNAC/SLAC arthritis treatment. Currently, it is unknown whether one method is superior to the other. This study will help answer this question and ensure that future patients get the operation that gives them the best function.
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Trial website
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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A/Prof Eugene Ek
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Address
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Division of Hand Surgery, Department of Orthopaedics
Dandenong Hospital
David St
Dandenong VIC 3145
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Country
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Australia
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Phone
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+61 439068616
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Gayan Padmasekara
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Address
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Division of Hand Surgery, Department of Orthopaedics
Dandenong Hospital
David St
Dandenong VIC 3145
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Country
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Australia
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Phone
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+61 433061966
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Name
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Gayan Padmasekara
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Address
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Division of Hand Surgery, Department of Orthopaedics
Dandenong Hospital
David St
Dandenong VIC 3145
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Country
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Australia
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Phone
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+61 3 9554 1000
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Fax
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Email
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
We will provide aggregate data from the patients. Individual data will not be released.
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
No additional documents have been identified.
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