Metacarpal V fractures are injuries of the upper extremities. They occur frequently, primarily in young adults.These fractures are caused by falling on the fist, sports accidents and direct or indirect forces. Surgical intervention is necessary for fractures with a strong palmar angulation of the metacarpal bone or rotational deformity of the small finger. Due to the absence of guideline recommendations decisions about therapy are made taking into account logistical aspects, available hardware, individual expertise and preferences. The objective of the study is to compare the advantages and disadvantages of single versus double Kirschner wires for intramedullary fixation of metacarpal V fractures in order to standardize national therapy procedures. Primary hypothesis: In the surgical therapy of the dislocated and/or rotational deformed metacarpal V neck fracture, osteosynthesis with a single Kirschner wire is not inferior to osteosynthesis with a double Kirschner wire with regard to the functional outcome after 6 month, as measured with the Disabilities of the Arm, Shoulder and Hands Score (DASH).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
292
University Medicine Greifswald
Greifswald, Mecklenburg-Vorpommern, Germany
Sana Clinical Centre Lichtenberg
Berlin, Germany
Vivantes Hospital Am Urban
Berlin, Germany
Trauma Hospital Berlin
Berlin, Germany
University Medicine Düsseldorf
Düsseldorf, Germany
District Hospital Gummersbach
Gummersbach, Germany
BG Kliniken Bergmannstrost
Halle, Germany
Berufsgenossenschaftliches Unfallkrankenhaus Hamburg
Hamburg, Germany
University Medicine Hamburg-Eppendorf
Hamburg, Germany
Berufsgenossenschaftliches Unfallkrankenhaus Ludwigshafen
Ludwigshafen, Germany
...and 2 more locations
Differences in functional outcome of the therapy with single or double Kirschner wires measured with the DASH score
Time frame: 6 months after randomisation
Malposition or angulation in the frontal and sagittal planes of max. 5°
Time frame: 6 months after randomisation
Shortening of the metacarpus >2mm
Time frame: 6 months after randomisation
Palmar angulation >30°
Time frame: 6 months after randomisation
Non-union/Pseudarthrosis
Time frame: 6 months after randomisation
Limitation of fist closure
Time frame: 6 months after randomisation
Flexion or extension lag
Time frame: 6 months after randomisation
Pain intensity <10 points (VAS)
Time frame: 6 months after randomisation
Duration of surgical intervention
Time frame: 6 months after randomisation
Rate of re-interventions
Time frame: 6 months after randomisation
Rate of infections
Time frame: 6 months after randomisation
Rate of perforation/dislocation/break of the fracture fixation devices
Time frame: 6 months after randomisation
Duration of inability to work
Time frame: 6 months after randomisation
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