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A Randomized Controlled Trial of the Treatment of Mallet Fractures

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified August 2012 by Dr. D.B. Wouters, Conmed Linvatec Benelux.
Recruitment status was:  Recruiting
Information provided by (Responsible Party):
Dr. D.B. Wouters, Conmed Linvatec Benelux Identifier:
First received: October 31, 2010
Last updated: August 17, 2012
Last verified: August 2012
Intra-articular fractures at the dorsal base of the distal phalanx of the hand are usually referred to as Mallet fractures. Treatment of Mallet fractures remains controversial. Although no differences in clinical results are reported between conservative treatment and operative treatment, operative treatment is suggested for fractures involving more than 30% of articular surface. There are many different operative techniques, all with specific disadvantages. The investigators hypothesis is that operative treatment of Mallet fractures with one Meniscus Arrow® has a better outcome than conservative treatment with a Mallet splint.

Condition Intervention
Mallet Fracture Procedure: Biodegradable Meniscus Arrow® Device: Mallet splint

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Randomized Controlled Trial of the Treatment of Mallet Fractures: Conservative Versus Operative Using One Meniscus Arrow®

Resource links provided by NLM:

Further study details as provided by Dr. D.B. Wouters, Conmed Linvatec Benelux:

Primary Outcome Measures:
  • Extension deficit [ Time Frame: 1 year ]
    To evaluate the extension deficit after conservative and operative treatment of a Mallet fracture using the Crawford criteria.

  • extension deficit [ Time Frame: 1 year ]
    at every visit, the extension in the DIP joint, is measured

Secondary Outcome Measures:
  • wound healing disturbances [ Time Frame: 1 year ]
    at every control, this is noted

Other Outcome Measures:
  • nail deformaties [ Time Frame: 1 year ]
    at every control nail deformaties, if present, are noted

Estimated Enrollment: 84
Study Start Date: March 2011
Estimated Primary Completion Date: January 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Operative
operative treatment of a Mallet fracture with a biodegradable Meniscus Arrow®
Procedure: Biodegradable Meniscus Arrow®
Closed reduction of the Mallet fracture and fixation with 1 biodegradable meniscus Arrow®
Active Comparator: Conservative
Conservative treatment of a Mallet fracture with a Mallet splint
Device: Mallet splint
Conservative treatment of the Mallet fracture with the traditional Mallet splint.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • avulsion fracture involving more than 30% of articular surface

Exclusion Criteria:

  • (sub)luxation of the distal phalanx
  • patients with a Mallet fracture developed 3 weeks or more prior to presentation
  • patients with a Mallet fracture with failure of conservative treatment
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01232426

Contact: D Wouters, MD, PhD +31-134655655
Contact: FLM Aarts, MD +31-639778708

st. Elisabeth Hospital Recruiting
Tilburg, Noord-Barbant, Netherlands, 5022GC
Contact: M. Verhofstad, MD,PhD         
Principal Investigator: M Verhofstad, MD, PhD         
Amphia Hospital Not yet recruiting
Breda, Noord-Brabant, Netherlands, 4818CK
Contact: D de Vos, MD, PhD         
Catharaina Hospital Not yet recruiting
Eindhoven, Noord-Brabant, Netherlands, 5623EJ
Contact: A vdVeen, Md, PhD         
Twee Steden Hospital Recruiting
Tilburg, Noord-Brabant, Netherlands, 5042AD
Principal Investigator: Fenne Aarts, MD         
Kennemer Gasthuis Hospital Not yet recruiting
Haarlem, Noord-Holland, Netherlands, 2035RC
Contact: M Heetveld, Md, PhD         
Canisius-Wilhelmina Hospital Not yet recruiting
Nijmegen, Netherlands, 6532SZ
Contact: W vd Stappen, MD         
Sponsors and Collaborators
Conmed Linvatec Benelux
  More Information

Responsible Party: Dr. D.B. Wouters, Conmed Linvatec Benelux Identifier: NCT01232426     History of Changes
Other Study ID Numbers: Mallet2010
Study First Received: October 31, 2010
Last Updated: August 17, 2012

Additional relevant MeSH terms:
Fractures, Bone
Wounds and Injuries processed this record on September 18, 2017