title: A Novel Guidewire Aiming Device to Improve the Accuracy of Guidewire Insertion in Femoral Neck Fracture Surgery Using Cannulated Screw Fixation.
abstract: BACKGROUND The aim of this study was to improve the accuracy of guidewire insertion in the femoral neck fracture surgery using cannulated screw fixation. MATERIAL AND METHODS A novel aiming device was designed and manufactured. Between January 2010 and June 2012, 64 femoral neck fracture patients were included into the study. All 64 patients were divided into 2 groups randomly. The aiming device was used during the operation for patients in the experimental group, but not in the control group. RESULTS There were no statistically significant differences in operative time or bleed volume between the groups (P>0.05). The frequency of guidewire drilling was significantly lower in the experimental group than in the control group (P<0.05). The angle between the first cannulated screw and the central axis of the femoral neck in coronal plane and sagittal plane, and the distance between the bottom cannulated screw and the medial calcar femorale rim, were significantly smaller in the experimental group than in the control group (P<0.05). CONCLUSIONS The aiming device is simple in structure and easy to use. It could help surgeons to accurately insert cannulated screw guidewires. The aiming device is suitable for broad clinical use.
authors.affiliation: Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China (mainland).
authors.forename: Wenjing
authors.initials: W
authors.lastname: Yin
authors.affiliation: Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China (mainland).
authors.forename: Haitao
authors.initials: H
authors.lastname: Xu
authors.affiliation: Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China (mainland).
authors.forename: Peijun
authors.initials: P
authors.lastname: Xu
authors.affiliation: Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China (mainland).
authors.forename: Tu
authors.initials: T
authors.lastname: Hu
authors.affiliation: Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China (mainland).
authors.forename: Zhiquan
authors.initials: Z
authors.lastname: An
authors.affiliation: Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China (mainland).
authors.forename: Changqing
authors.initials: C
authors.lastname: Zhang
authors.affiliation: Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China (mainland).
authors.forename: Jiagen
authors.initials: J
authors.lastname: Sheng
mesh_terms: D000328:Adult; D001863:Bone Screws; D005260:Female; D005265:Femoral Neck Fractures / Q000601:surgery*; D005272:Femur Neck / Q000601:surgery; D005593:Fracture Fixation, Internal / Q000295:instrumentation* / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013525:Surgical Instruments; D016896:Treatment Outcome