Comparing Four-Corner Arthrodesis with Three-Corner or Capitolunate for wrist arthritis
Official title: Randomized Comparison of PARtial Wrist Fusion With or Without Triquetral Excision (PARTE)
- 2 groups
- Sites in Calgary, St. Albert and 3 more cities
- Recruiting
Interventions
- Medical procedure
Four-Corner Arthrodesis
Participants in Group A will receive a four-corner arthrodesis (fusion of the capitate, hamate, lunate, and triquetrum) with excision of the scaphoid.
- Medical procedure
Three-Corner or Capitolunate Arthrodesis with Triquetral Excision
Participants in Group B will receive a three-corner arthrodesis (fusion of the capitate, hamate, and lunate) or capitolunate arthrodesis (fusion of the capitate and lunate) with excision of the scaphoid and triquetrum.
Canadian Sites (5)
5 of 5 recruiting
- Recruiting
South Health Campus
Calgary, Alberta
- Recruiting
Western Hand & Upper Limb Facility, Sturgeon Community Hospital
St. Albert, Alberta
- Recruiting
Lawson Health Research Institute
London, Ontario
- Recruiting
The Ottawa Hospital - Civic Campus
Ottawa, Ontario
- Recruiting
University of Saskatchewan
Saskatoon, Saskatchewan
Eligibility Criteria
See who this study is looking for8 criteria
The trial’s own eligibility text, word for word from the registry. Only the trial site can say who takes part.
Inclusion
- +Participant has a stage II or III scapholunate advanced collapse (SLAC) or scaphoid nonunion advanced collapse (SNAC) wrist and is a surgical candidate for the included surgical interventions
Exclusion
- −Participant has been diagnosed with other forms of wrist arthritis other than SLAC or SNAC
- −Participant has a physical or mental health condition preventing completion of consentInformed consentThe process of being told what taking part involves, then choosing freely.Read more → or questionnaires
- −Participant does not speak/read/understand English
- −Participant has no fixed address or means of contact
- −Participant is unwilling to complete necessary follow-ups
- −Participant has significant arthritis of the ipsilateral hand/finger joint(s), major joint trauma, previous major wrist surgery, infection or neuromuscular pathology affecting the function of the ipsilateral upper extremity or ability to make a fist
- −Surgeon concludes that eligible salvage techniques are not appropriate at the time of surgery (based on injury characteristics or concomitant wrist pathology)
In plain language
Assembled directly from this trial’s registry record. Every sentence traces to a field below — nothing here is generated or interpreted.
What this study is
This study is testing a treatment for a condition.
This study is not organised into the usual phase numbers — that is common for device, behavioural, and diagnostic research.
From the trial registry
Built from these fields:
- designModule.designInfo.primaryPurpose
- designModule.phases
Who receives what
There are 2 groups in this study.
Group A, the comparison group, receives Four-Corner Arthrodesis.
Registry label: A: Group A: Partial Wrist Arthrodesis without Triquetral Excision
Group B, the comparison group, receives Three-Corner or Capitolunate Arthrodesis with Triquetral Excision.
Registry label: B: Group B: Partial Wrist Arthrodesis with Triquetral Excision
From the trial registry
Built from these fields:
- armsInterventionsModule.armGroups[].label
- armsInterventionsModule.armGroups[].type
- armsInterventionsModule.armGroups[].interventionNames
How the study is run
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
Neither you nor the study team would know which group you are in until the study ends.
From the trial registry
Built from these fields:
- designModule.designInfo.allocation
- designModule.designInfo.maskingInfo.masking
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
One group receives an existing treatment, so the two can be compared.
From the trial registry
Built from these fields:
- armsInterventionsModule.armGroups[].type
- armsInterventionsModule.armGroups[].interventionNames
Who the study is looking for
The study lists an age range of 18 years to 75 years.
The study is open to people of any sex.
The study does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
These are the criteria the study lists. Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part.
From the trial registry
Built from these fields:
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How big and how long
The study aims to enrol about 170 people.
The study is currently expected to finish around April 2027.
The main measurement is taken over: Completed at baselineBaselineYour starting measurements, taken before treatment begins.Read more → (pre-surgery), 3-, 6-, 12-months post-surgery.
From the trial registry
Built from these fields:
- designModule.enrollmentInfo.count
- statusModule.completionDateStruct.date
- outcomesModule.primaryOutcomes[].timeFrame
What the study measures
Grip Strength — measured over Completed at baselineBaselineYour starting measurements, taken before treatment begins.Read more → (pre-surgery), 3-, 6-, 12-months post-surgery.
From the trial registry
Built from these fields:
- outcomesModule.primaryOutcomes[].measure
- outcomesModule.primaryOutcomes[].timeFrame
Source: NCT04580225 on ClinicalTrials.gov. The full registry text is further down this page — this summary never replaces it.
Not medical advice. What do these terms mean?
What is being tested — in plain terms
About Four-Corner ArthrodesisProcedure
Participants in Group A will receive a four-corner arthrodesis (fusion of the capitate, hamate, lunate, and triquetrum) with excision of the scaphoid.
From the trial registry — its own words, unedited.
What a procedure is here: A surgery, technique or clinical procedure being studied.
Read the full explanation → · in clinical review
About Three-Corner or Capitolunate Arthrodesis with Triquetral ExcisionProcedure
Participants in Group B will receive a three-corner arthrodesis (fusion of the capitate, hamate, and lunate) or capitolunate arthrodesis (fusion of the capitate and lunate) with excision of the scaphoid and triquetrum.
From the trial registry — its own words, unedited.
What a procedure is here: A surgery, technique or clinical procedure being studied.
Read the full explanation → · in clinical review
Common questions
Answered from this trial’s registry record. Where the record doesn’t say, these answers say so rather than filling the gap.
Am I eligible for this trial?
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can decide whether someone can take part. Concord cannot make that determination, and neither can any tool that has not examined you.
What the study lists: an age range of 18 years to 75 years.
The full inclusionInclusion criteriaThe things you must have or be for a study to consider you.Read more → and exclusion criteriaExclusion criteriaThe things that would prevent someone from taking part.Read more → are published on this page, exactly as the study team wrote them.
The useful next step is to bring this trial to your doctor. Answering a few questions first gives them something concrete to review.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.eligibilityCriteria
Is there a placebo?
This study does not list a placeboPlaceboA dummy treatment with no active medicine, used for comparison.Read more → group.
One group receives an existing treatment so the two can be compared.
From the trial registry
- armsInterventionsModule.armGroups[].type
Would I know which treatment I am getting?
Neither you nor the study team would know which group you are in until the study ends.
Which group you would be placed in is decided by chance, like a coin flip — not by you and not by your doctor.
From the trial registry
- designModule.designInfo.maskingInfo.masking
- designModule.designInfo.allocation
Who can join?
The study lists an age range of 18 years to 75 years.
It is open to people of any sex.
It does not accept healthy volunteersHealthy volunteerSomeone without the condition being studied who takes part anyway.Read more →.
Only the trial siteTrial siteA hospital or clinic where a study is actually run.Read more → can confirm whether a particular person can take part.
From the trial registry
- eligibilityModule.minimumAge
- eligibilityModule.maximumAge
- eligibilityModule.sex
- eligibilityModule.healthyVolunteers
How long would this take?
The study's main measurement is taken over: Completed at baselineBaselineYour starting measurements, taken before treatment begins.Read more → (pre-surgery), 3-, 6-, 12-months post-surgery.
The study as a whole is currently expected to finish around 2027-04.
How long any one person takes part can differ from the study length. The study team can tell you what the schedule looks like in practice.
From the trial registry
- outcomesModule.primaryOutcomes[].timeFrame
- statusModule.completionDateStruct.date
How many people are taking part?
The study aims to enrol about 170 people.
From the trial registry
- designModule.enrollmentInfo.count
Where is this happening?
This study lists 5 locations, including: Calgary, Alberta, Canada; St. Albert, Alberta, Canada; London, Ontario, Canada; Ottawa, Ontario, Canada; Saskatoon, Saskatchewan, Canada.
Sites can open and close during a study, so confirm with the team before travelling.
From the trial registry
- trial_locations
About This Trial
This randomized clinical trial (RCT) aims to compare clinical and radiographic outcomes of different partial wrist fusion techniques in participants with post-traumatic wrist arthritis. Participants with stage II or III scapholunate advanced collapse (SLAC) or scaphoid nonunion advanced collapse (SNAC) who meet the eligibility criteria will be randomly assigned to one of two parallel groups: Group A (partial wrist arthrodesis without triquetral excision i.e. four-corner arthrodesis), or Group B (partial wrist arthrodesis with triquetral excision i.e. three-corner or capitolunate arthrodesis with triquetral excision). The results of this study will provide evidence to guide surgeons in determining the ideal wrist fusion technique in the management of patients with post-traumatic wrist arthritis requiring surgery.
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See if this trial could fit youThis page is for informational purposes only and does not constitute medical advice. Clinical trial eligibility can only be determined by the trial site after proper screening. Trial information is sourced from ClinicalTrials.gov and may not reflect the most current status. Always consult your healthcare provider before making decisions about clinical trial participation.