Pilon Fracture Reduction and Functional Outcome

This study is currently recruiting participants.
Verified March 2014 by AO Clinical Investigation and Documentation
Information provided by (Responsible Party):
AO Clinical Investigation and Documentation
ClinicalTrials.gov Identifier:
First received: March 14, 2011
Last updated: March 11, 2014
Last verified: March 2014

This prospective case series will essentially examine the influence of reduction quality on the primary functional outcome (as assessed using the FAAM) of patients with pilon fractures treated with plate fixation.

The plates used in this trial can be chosen according to the preferences of the surgeon.

Pilon Fracture of Tibia

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Quality of Fracture Reduction and Its Influence on Functional Outcome in Patients With Pilon Fractures - a Prospective Multicenter Case Series

Resource links provided by NLM:

Further study details as provided by AO Clinical Investigation and Documentation:

Primary Outcome Measures:
  • Examine the influence of reduction quality on the primary functional outcome (as assessed using the Foot and Ankle Ability Measure (FAAM)) of patients with pilon fractures treated with plate fixation. [ Time Frame: 2 years ] [ Designated as safety issue: No ]
    The most important predictors of functional outcome after pilon fracture will be identified by evaluating the influence of radiologically assessed parameters of reduction quality and other factors (age, high/low energy trauma, AO fracture type, open/closed fracture, delay between trauma and definitive fracture fixation) on the FAAM. In parallel, the radiological parameters will also be validated with respect to their reliability.

Secondary Outcome Measures:
  • Patient outcome [ Time Frame: 5 years ] [ Designated as safety issue: No ]
    • Clinician-evaluated function of the ankle (Olerud and Molander score)
    • Trauma Outcomes Measure (TOM)
    • Time to full weight bearing without pain
    • Quality of life with Short Form-12 (SF-12) and EuroQol5 (EQ5)
    • Range of motion
    • Pain with the Numerical Rating Scale (NRS)
    • Return to work
    • Return to sports activities
    • Length of hospital stay

  • Frequency and severity of osteoarthritis (OA) following pilon fractures [ Time Frame: 5 years ] [ Designated as safety issue: No ]
    Occurrence and severity of OA as radiologically assessed using the Bargon and Kellgren-Lawrence classification systems

  • Surgical details [ Time Frame: 1 year ] [ Designated as safety issue: No ]
    • Length of surgery (skin-to-skin time)
    • Type of implant used
    • Use of bone graft
    • Soft tissue or wound-related procedures (eg, debridement, free flap, local flap, split skin graft)

  • Pre- and postoperative treatment [ Time Frame: 1 year ] [ Designated as safety issue: No ]
    Perioperative management data will include documentation of the use of thromboprophylaxis or prophylactic antibiotics, therapeutic antibiotics and pain medication including nonsteroidal antiinflammatory drugs (NSAID).

  • Frequency of local complications [ Time Frame: 5 years ] [ Designated as safety issue: No ]
    Bone, implant/surgery and soft tissue complications and revision surgery

  • Effect of prognostic factors on the occurrence of complications [ Time Frame: 5 years ] [ Designated as safety issue: No ]
    eg, soft tissue damage, fracture severity

  • To assess whether patient and surgeon expectations are met with regard to the trauma outcome [ Time Frame: 1 year ] [ Designated as safety issue: No ]
    Trauma expectations factor (TEF) to assess the patient and surgeon expectations about the outcome of the treatment

Estimated Enrollment: 109
Study Start Date: November 2011
Estimated Study Completion Date: March 2019
Estimated Primary Completion Date: December 2018 (Final data collection date for primary outcome measure)
Detailed Description:

A prospective case series to examine the influence of reduction quality on the primary functional outcome (as assessed using the FAAM) of patients with pilon fractures treated with plate fixation. Radiological parameters including single/combined alignment and various articular measurements will also be validated according to their reliability. The sensitivity of the effects of reduction quality on functional outcome, and an extended evaluation of patient-rated functional and social outcomes as well as their outcome expectations will also be assessed as part of the secondary study aims.


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population

Patients with pilon fractures that fulfill the following inclusion and exclusion criteria


Inclusion Criteria:

  • Age 18 years and older
  • Patients with a unilateral intraarticular pilon fracture of the distal tibia classified according to AO: AO 43 - B1, B2 and B3 (partial intraarticular) AO 43 - C1, C2 and C3 (total intraarticular)
  • Definitive fracture fixation with a plate within 4 weeks after accident (Temporary fixation with an external fixator, cast or traction is allowed)
  • Signed written informed consent (by the patients) and agreement to attend the planned FU evaluations

Exclusion Criteria:

  • Contralateral fracture of the distal half of the tibia/fibula/talus
  • Pathologic fracture
  • Severe Polytrauma: Injury Severity Score (ISS) > 28
  • Preexisting severe vascular disease (chronic venous insufficiency, chronic arterial occlusive disease)
  • Drug or alcohol abuse
  • American Society of Anesthesiologists (ASA) class V and VI
  • Inability to walk independently prior to injury event
  • Neurological and psychiatric disorders that would preclude reliable assessment
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01316289

Contact: Jan Ljungqvist +41 44 2002461 jan.ljungqvist@aofoundation.org
Contact: Christoph Sommer, MD +41 81 256 62 05 christoph.sommer@ksgr.ch

United States, Indiana
Indiana Orthopaedic Hospital Recruiting
Indianapolis, Indiana, United States, 46202
Contact: Timothy G. Weber, MD    317-917-4190    tweber@orthoindy.com   
Principal Investigator: Timothy G. Weber, MD         
United States, Minnesota
University of Minnesota Recruiting
St. Paul, Minnesota, United States, 55101
Contact: Peter A. Cole, MD    651-254-8300    Peter.A.Cole@HealthPartners.com   
Principal Investigator: Peter A. Cole, MD         
United States, Mississippi
University of Mississippi Medical Center Recruiting
Jackson, Mississippi, United States, 39216
Contact: Matthew L. Graves, MD    601-815-7068    mattgraves1@gmail.com   
Principal Investigator: Matthew L. Graves, MD         
United States, Washington
Harborview Medical Center Recruiting
Seattle, Washington, United States, 98104
Contact: Sean E. Nork, MD    206-731-3466    nork@u.washington.edu   
Principal Investigator: Sean E. Nork, MD         
Medical University Innsbruck Recruiting
Innsbruck, Austria, 6020
Contact: Michael Blauth, MD    +43 512 504 22821    michael.blauth@i-med.ac.at   
Principal Investigator: Michael Blauth, MD         
Universidade de São Paulo - Faculdade de Medicina Recruiting
Cerqueira Cesar - Sao Paulo, CEP, Brazil, 05403-010
Contact: Kodi Kojima, MD       kodikojima@uol.com.br   
Principal Investigator: Kodi Kojima, MD         
Cantonal Hospital Graubuenden Recruiting
Chur, Switzerland, 7000
Contact: Christoph Sommer, MD    +41 81 256 62 05    christoph.sommer@ksgr.ch   
Principal Investigator: Christoph Sommer, MD         
Cantonal Hospital Luzern Recruiting
Luzern, Switzerland, 6000
Contact: Reto Babst, MD    +41 41 205 48 82    reto.babst@ksl.ch   
Principal Investigator: Reto Babst, MD         
Cantonal Hospital Winterthur Recruiting
Winterthur, Switzerland, 8401
Contact: Kurt Käch, MD    +41 52 266 24 12    k.kaech@ksw.ch   
Contact: Thomas Hotz, MD    +41 52 266 24 13    thomas.hotz@ksw.ch   
Principal Investigator: Kurt Käch, MD         
Sub-Investigator: Thomas Hotz, MD         
Sponsors and Collaborators
AO Clinical Investigation and Documentation
Principal Investigator: Christoph Sommer, MD Cantonal Hospital Graubuenden
Study Director: Beate P. Hanson, MD AO Clinical Investigation and Documentation, Davos, Switzerland
  More Information

No publications provided

Responsible Party: AO Clinical Investigation and Documentation
ClinicalTrials.gov Identifier: NCT01316289     History of Changes
Other Study ID Numbers: Pilon
Study First Received: March 14, 2011
Last Updated: March 11, 2014
Health Authority: Austria: Ethikkommission
Brazil: Ethics Committee
Germany: Ethics Commission
Switzerland: Ethikkommission
United States: Institutional Review Board

Keywords provided by AO Clinical Investigation and Documentation:
tibial fractures
pilon fractures
tibial plafond
reduction quality
anatomical reduction
functional outcome
ankle joint

Additional relevant MeSH terms:
Fractures, Bone
Tibial Fractures
Wounds and Injuries
Leg Injuries

ClinicalTrials.gov processed this record on April 17, 2014