Efficacy of 3-D-imaging in minimally-invasive screw fixation of proximal phalanx fractures: A cadaveric study.
The current study evaluated whether 3-D fluoroscopic imaging is capable of adequate visualisation, reduction and effective guidance of implant placement during a minimally-invasive screw-fixation (MISF) procedure in the treatment of proximal phalanx fractures. A comparison with conventional intraoperative 2-D imaging was performed in a cadaveric model. Conventional 2-D and 3-D imaging series were performed following the creation of proximal phalanx fractures, reduction and fixation, pre- and post-operatively. For both imaging modalities, attention was paid to A) correct reduction, B) screw-placement and, if present, C) intra-articular offset of fracture edges.The results revealed no related overall advantage of the 3-D imaging system over normal 2-D fluoroscopy at the proximal phalanx region. The authors conclude that, given the cost of 3-D imaging technology, as well as the increased time required for image acquisition, its routine use in the treatment of phalanx fracture cases is not justifiable at present.
Department of Orthopedic, Trauma and Hand Surgery, St.Josefs-Hospital, Cloppenburg, Germany. andreas_oldewurtel@yahoo.de
Andreas
A
Oldewurtel
D
D
Kendoff
P F
PF
O'Loughlin
U
U
Wolfhard
L C
LC
Olivier
D001863:Bone Screws; D002102:Cadaver; D005383:Finger Injuries / Q000000981:diagnostic imaging*; D005471:Fluoroscopy / Q000379:methods; D050723:Fractures, Bone / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D016896:Treatment Outcome; D014463:Ultrasonography