This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Technical advance
Tao Zhang
Hebei Medical University Third Affiliated Hospital
Corresponding Author
ORCiD: https://orcid.org/0000-0002-1631-8748
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
This study analyzed the imaging data of patients retrospectively to understand the risk of cannulated screw fixation for femoral neck fracture. At the same time, we try to use intraoperative frog lateral view to avoid the risk of screw cutout.
Method
The imaging data of patients with femoral neck fracture treated with cannulated screws between January 2015 and September 2016 was reviewed, and patients with screw cutout or suspicious cutout were found. The postoperative imaging data of 41 patients who attempted to use frog lateral view during the operation was reviewed,and patients with screw cutout or suspicious cutout were found.
Result
Among the 479 patients, only 72 patients underwent CT examination after the operation, and 18 of the 72 patients had obvious screw cutout. Screw cutout cases accounted for 3.8% of the total number of cases and 25% of the patients undergoing CT examination. Of the 41 patients who received intraoperative frog lateral view, only 2 cases were cutout from the neck, and no cases were cutout from the femoral head.
Conclusion
The anterior upper part of the femoral head is a high-risk area cutout by cannulated screws. Postoperative CT is very necessary and can accurately detect the screw cutout, for the long-term prognosis of the implications. The application of frog lateral view in the operation of femoral neck fracture can effectively avoid the risk of cannulated screw cutout.
Keywords
frog lateral view, CT examination, femoral neck fracture, cannulated screw
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This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Technical advance
Tao Zhang
Hebei Medical University Third Affiliated Hospital
Corresponding Author
ORCiD: https://orcid.org/0000-0002-1631-8748
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
Version 1
Posted 18 Mar, 2021
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
This study analyzed the imaging data of patients retrospectively to understand the risk of cannulated screw fixation for femoral neck fracture. At the same time, we try to use intraoperative frog lateral view to avoid the risk of screw cutout.
Method
The imaging data of patients with femoral neck fracture treated with cannulated screws between January 2015 and September 2016 was reviewed, and patients with screw cutout or suspicious cutout were found. The postoperative imaging data of 41 patients who attempted to use frog lateral view during the operation was reviewed,and patients with screw cutout or suspicious cutout were found.
Result
Among the 479 patients, only 72 patients underwent CT examination after the operation, and 18 of the 72 patients had obvious screw cutout. Screw cutout cases accounted for 3.8% of the total number of cases and 25% of the patients undergoing CT examination. Of the 41 patients who received intraoperative frog lateral view, only 2 cases were cutout from the neck, and no cases were cutout from the femoral head.
Conclusion
The anterior upper part of the femoral head is a high-risk area cutout by cannulated screws. Postoperative CT is very necessary and can accurately detect the screw cutout, for the long-term prognosis of the implications. The application of frog lateral view in the operation of femoral neck fracture can effectively avoid the risk of cannulated screw cutout.
Figure 1
Figure 2
Figure 3
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