Clinical Outcome After Treatment of Patellar Fractures With Locking Plates

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02015975
Recruitment Status : Active, not recruiting
First Posted : December 19, 2013
Last Update Posted : October 3, 2017
Information provided by (Responsible Party):
Diakoniekrankenhaus Friederikenstift

Brief Summary:

Depending on the fracture pattern of patellar fractures tension band wiring, interfragmentary screw fixation or combinations are common treatments. But there are several problems associated with these techniques as fracture dislocation or loosening and perforation of the wire. Furthermore an anatomic reduction with stable fixation in comminuted fractures is almost impossible to achieve.

A new option in the treatment of patellar fractures is the locking plate osteosynthesis, which provides a more stable fixation and higher mechanical strength in biomechanical tests compared to classic tension band wiring. Due to various screw positioning a stable fixation in comminuted fractures can be achieved and an early functional treatment with full weight bearing reduces the loss of knee-motion. Furthermore a removal of the osteosynthesis seems not to be essential anymore and the blood supply is not to be compromised.

Because of the absent of clinical evidence investigators want to evaluate the clinical outcome after locking plate osteosyntheses in patellar fractures and compare patient satisfaction, functional motion, complications and number of revisions with common treatments.

Condition or disease
Fracture of Patella

Study Type : Observational [Patient Registry]
Estimated Enrollment : 20 participants
Observational Model: Case-Only
Time Perspective: Prospective
Target Follow-Up Duration: 2 Years
Official Title: Clinical Outcome After Treatment of Patellar Fractures With Locking Plates
Actual Study Start Date : May 1, 2013
Estimated Primary Completion Date : March 31, 2018
Estimated Study Completion Date : June 30, 2018

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Fractures
U.S. FDA Resources

Primary Outcome Measures :
  1. Clinical short-term results [ Time Frame: 6 weeks ]
    The clinical short-term results after treating a patellar fracture with plate osteosynthesis are evaluated. Therefore functional motion is measured, complications and revision operations reviewed and knee-scores analyzed (Tegner-Score, Lysholm-Score, Kujala-Score, International Knee Documentation Committee - Subjective knee evaluation form).

Secondary Outcome Measures :
  1. Clinical long-term results [ Time Frame: 24 months ]
    Further changes in functional motion and knee-scores are analyzed as well as the occurrence and frequency of complications and revision operations.

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
All patients with a fracture of the patellar, which were operated with a locking plate osteosynthesis in the Friederikenstift Hannover since May 2013.

Inclusion Criteria:

  • patients with indication for operative treatment of a patellar fracture
  • sufficient compliance
  • signed patient information

Exclusion Criteria:

  • preoperative disease or trauma of the patellar
  • preoperative loss of motion of the knee
  • former operations of the patellar
  • alcohol or drug consumption

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT02015975

Diakoniekrankenhaus Friederikenstift Hannover
Hannover, Niedersachsen, Germany, 20169
Sponsors and Collaborators
Diakoniekrankenhaus Friederikenstift
Principal Investigator: Alexander Ellwein, Dr. Friederikenstift Hannover

Responsible Party: Diakoniekrankenhaus Friederikenstift Identifier: NCT02015975     History of Changes
Other Study ID Numbers: 001-2013
First Posted: December 19, 2013    Key Record Dates
Last Update Posted: October 3, 2017
Last Verified: September 2017

Keywords provided by Diakoniekrankenhaus Friederikenstift:
patellar fracture
fracture of patella
locking plate osteosynthesis

Additional relevant MeSH terms:
Fractures, Bone
Wounds and Injuries