Affiliations: [a] The Division of Orthopedic Traumatology, The First Hospital of Jilin University, Changchun, Jilin, China | [b] The Department of Neurology, The First Hospital of Jilin University, Changchun, Jilin, China
Correspondence:
[*]
Corresponding authors: Yi Zhao, The Division of Orthopedic Traumatology The First Hospital
of Jilin University, Xinmin Street No. 71, Changchun City, Jilin 130000, China.
Tel.: +86 13596058761; Fax: +86 043185654528; E-mail: zhaoyi8761@sina.com.
Da-Hui Sun, The Division of Orthopedic Traumatology The First Hospital of Jilin
University, Xinmin Street No. 71, Changchun City, Jilin 130000, China.
Tel.: +86 13843144350; Fax: +86 043185654528;
E-mail: qibaochang1@163.com/qibaochang1@163.com
Abstract:
BACKGROUND: Cannulated screws (4.0 mm) provide inter-fragmentary compression
and stability to fractures. A guide wire is used to define the screw
trajectory and hold the fracture fragment while the screw is being inserted.
The cannulated shaft typically accommodates a 1.25 mm guide pin. Since the
guide pin is very slender and undergoes elastic deformation during
insertion, there is a high probability of pin breakage.
METHODS: The authors have devised a new way to place the 4.0 mm cannulated
screws in a manner that prevents the intraoperative complication of guide
wire breakage. For this technique, predrilling was achieved using a 2.0 mm
K-wire which was subsequently replaced with a 1.25 mm guide pin under the
protection of sleeve. 4.0 mm cannulated screws were then inserted into a
defined trajectory over the guide pin.
RESULTS: Using the technique, over 20 patients were managed in our
department over a period of two years without any complications.
CONCLUSION: We have observed that patients treated with this method
experience short operation time, combined with good clinical outcome and we
recommend its use in cases where cannulated screw use is warranted.
