Comparing trapeziectomy to sham surgery for thumb osteoarthritis
Official title: A Multi-center, Investigator-blinded, Randomized, Parallel Group, Superiority Study to Compare the Efficacy of Trapeziectomy Versus Sham Surgery in the Treatment of Osteoarthritis at the Base of the Thumb
Run by Tampere University Hospital · NCT05127005 · Data updated 2026-11-12
This study is testing whether a thumb surgery called trapeziectomy can help people with painful thumb arthritis feel better compared to a fake surgery.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 45 Years and up |
| Sex | All |
| Enrollment | 132 (estimated) |
| Sponsor | Tampere University Hospital Academic / other |
| Locations | 4 sites (Helsinki and 3 other locations) |
| Status | Recruiting |
| Started | January 20, 2022 |
| Main results expected | September 30, 2028 |
| Study ends | March 31, 2033 |
| Registry record updated | November 2, 2026 |
| Trial ID | NCT05127005 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are individuals over 45 years old with confirmed Eaton Glickel grade 2 or higher thumb osteoarthritis who have not found relief from non-surgical treatments.
✕Probably not a fit
Patients whose primary complaint is due to conditions other than thumb basal joint osteoarthritis or those requiring concurrent surgeries may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial evaluates the effectiveness of trapeziectomy, a surgical procedure, compared to a sham surgery in patients suffering from painful osteoarthritis at the base of the thumb. It is a multi-center, randomized, placebo-controlled trial that focuses on patient-reported outcomes, specifically pain and function of the wrist and hand, measured at 6 months post-treatment. Secondary outcomes include assessments at 3 months, 1 year, 2 years, and 5 years, as well as grip strength and overall change in condition. The study aims to provide robust data on the benefits of surgical intervention for this condition.
Why it matters
Potential benefit: If successful, this study could provide a validated surgical option for patients suffering from debilitating thumb osteoarthritis, improving their quality of life.
How similar studies have gone: Previous studies have shown varying success with surgical interventions for osteoarthritis, but this specific comparison of trapeziectomy to sham surgery is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Primary thumb basal joint (CMC1) osteoarthritis (Eaton Glickel grade 2 or higher) confirmed by standard x-rays and with symptoms limiting activities of daily living 2. Indication for surgical treatment of thumb basal joint (CMC1) osteoarthritis after insufficient benefit from non-operative treatment, including use of a thumb orthosis and pain medication (NSAIDs or paracetamol, implemented for at least three months. 3. Thumb pain in use of at least 4 on a 0 to10 numerical rating scale (NRS, 10=worst pain) 4. Age \> 45 years 5. ASA-classification I-II (American Society for Anesthesiologist's Physical Status Classification System) 6. Ability to speak, understand and read in the language of the clinical site 7. Provision of informed consent from the participant 8. Shared decision to proceed with surgical treatment of CMC-1 OA Exclusion Criteria: 1. Patients' main complaint is due to some other problem than primary thumb basal joint (CMC1) osteoarthritis or patient will undergo any other surgery in conjunction with trapeziectomy 2. Neurologic condition affecting the function or symptoms of the upper extremity 3. \<6 months from other surgical procedure of the upper extremities 4. Rheumatoid arthritis or other inflammatory joint disease 5. Bilateral thumb basal joint (CMC1) osteoarthritis in which patient requests treatment for both sides 6. Previous operation due tothumb basal joint (CMC1) osteoarthritis for either side 7. \>45 degrees of hyperextension in the thumb MP joint in resting position (zig zag deformity) 8. Patient is unable to continue his/her current job due to thumb pain
Where it's running
-
Helsinki University Central Hospital
Helsinki, Finland Recruiting -
Central Finland Hospital Nova
Jyväskylä, Finland Recruiting -
Kuopio University Central Hospital
Kuopio, Finland Recruiting -
Tampere University Hospital
Tampere, Finland Recruiting
Study contacts
- Study coordinator: Jarkko Jokihaara
- Email: jarkko.jokihaara@pirha.fi
- Phone: +3583311611
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Thumb base arthritis: joint replacement vs trapeziectomy
This trial tests whether a total thumb joint replacement (TOUCH prosthesis) works as well as trapeziectomy for people with basal thumb arthritis.
-
High-energy laser treatment for thumb osteoarthritis (rhizarthrosis)
This trial will test whether high-energy laser therapy using the THEAL Ixyon XP can reduce pain and improve function in people with early-stage thumb base osteoarthritis.
-
PRP Injection for Thumb Base Osteoarthritis (CMC-I) to See if It Reduces Pain
A PRP injection into the thumb base joint is being tested against a saline injection to see if it lowers pain and improves hand function for adults with thumb base osteoarthritis.
-
ICF-based biopsychosocial hand OA assessment with AI profile prediction
This observational study tests a biopsychosocial assessment for people with trapeziometacarpal osteoarthritis and uses AI to help predict patient profiles.
-
Comparing NSAID and corticosteroid injections for thumb arthritis treatment
This study is testing whether a pain-relieving injection with ketorolac or a corticosteroid injection with triamcinolone works better for people with thumb arthritis who haven't found relief from other treatments.
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Comparing different immobilization durations after thumb joint surgery
This study tests whether keeping the thumb in a cast for 2 weeks or 6 weeks after surgery helps people with thumb arthritis heal better and recover faster.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.