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CompletedNCT01906996Updated Feb 27, 2014

Proximal Row Carpectomy Versus Four Corner Fusion

An observational study in Wrist Osteoarthritis, sponsored by Schulthess Klinik. Completed at 1 site in Switzerland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2014-02-27.

Sponsored by Schulthess Klinik · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
114
Ages
18 Years and older
Sex
All
01

Study summary

There are two types of interventions to treat a post-traumatic wrist osteoarthritis: the proximal row carpectomy and the four corner fusion. They are used to reduce pain and to maintain the mobility. In previous studies are shown that the proximal row carpectomy shows a better mobility of the wrist postoperatively, whereas the four corner fusion has lower progression of radiocarpale osteoarthritis.

The purpose of this study is to compare the clinical, radiological and subjective outcomes after the treatment with a proximal row carpectomy or a four corner fusion.

Read the detailed description

Two surgical procedures are used to treat a post-traumatic wrist osteoarthritis, especially after scaphoid non-union advanced collapse (SNAC) and scapholunate advanced collapse (SLAC): the proximal row carpectomy and the four corner fusion. Both surgical procedures are rescue operations. They are used to reduce pain and to maintain the mobility, compared to a complete stiffening of the wrist.

In previous studies are shown that the proximal row carpectomy shows a better mobility of the wrist postoperatively and a lower complication rate, whereas the four corner fusion has a lower progression of radiocarpale osteoarthritis and a better grip strength.

The purpose of this study is to compare the clinical, radiological and subjective outcomes after the treatment with a proximal row carpectomy or a four corner fusion.

02

Conditions studied

  • Wrist Osteoarthritis

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03

In context

Osteoarthritis

4,398 studies on the registry are indexed under Osteoarthritis; 582 are open to participants now.

This study's planned enrollment of 114 is above the median of 100 across 791 observational studies indexed under Osteoarthritis.

Browse Osteoarthritis studies →

Lead sponsor

Schulthess Klinik is the lead sponsor of 52 studies on the registry; 10 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

patients with a post-traumatic wrist osteoarthritis, who are treated with a proximal row carpectomy or a four corner fusion

Inclusion criteria

  • post-traumatic wrist osteoarthritis
  • treated with a proximal row carpectomy or four corner fusion
  • signed written informed consent

Exclusion criteria

Exclusion Criteria:

  • no knowledge of German
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
114 participants (estimated)
Patient registry
No

Groups and cohorts

  • proximal row carpectomy

    patients were treated with a proximal row carpectomy

    Procedure: proximal row carpectomy

  • four corner fusion

    patients were treated with a four corner fusion

    Procedure: four corner fusion

Interventions

  • Procedureproximal row carpectomy

    excision of the scaphoid, lunate and triquetrum

  • Procedurefour corner fusion

    excision of the scaphoid and stiffening of the lunate, capitate and triquetrum by a plate

06

What researchers measure

Primary outcomes

  1. Range of motion of the wrist

    measurements of flexion/extension,supination/pronation and radial-/ulnarduction of the wrist

    Time frame: participants will be followed up by an expected average of 4.5 years

Secondary outcomes

  1. complication rate

    Detection of complications of both surgical procedures

    Time frame: participants will be followed up by an expected average of 4.5 years

Other outcomes

  1. grip strength

    measurement of grip strength

    Time frame: participants will be followed up by an expected average of 4.5 years

  2. Patient-Rated Wirst Evaluation (PRWE)

    Comparison of proximal row carpectomy and four corner fusion in respect to PRWE

    Time frame: participants will be followed up by an expected average of 4.5 years

  3. Michigan Hand Outcomes Questionnaire (MHQ)

    Comparison of proximal row carpectomy and four corner fusion in respect to MHQ

    Time frame: participants will be followed up by an expected average of 4.5 years

  4. Quick Disabilities of the Arm, Shoulder and Hand (QuickDASH)

    Comparison of proximal row carpectomy and four corner fusion in rsespect to QuickDASH

    Time frame: participants will be followed up by an expected average of 4.5 years

  5. Detection of radiological parameters

    Detection of arthrosis fossa lunata, impingement and loosening

    Time frame: participants will be followed up by an expected average of 4.5 years

07

Study locations

1 site
  • Schulthess Klinik
    Zurich, 8008, Switzerland
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 27, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01906996
Lead sponsor
Schulthess Klinik
Responsible party
Daniel Herren (Dr. med., Schulthess Klinik) — Principal investigator
First posted
Jul 24, 2013
Start date
Jul 2013
Primary completion
Jan 2014
Completion
Jan 2014
Last update
Feb 27, 2014

Study contacts

Daniel B Herren, Dr. med.
principal investigator · Schulthess Klinik

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2014. You cannot join it, but the record below documents what was studied.

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