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.
A new preprint design is coming!
We have improved readability, clarity, accessibility, and opportunities for engagement.
Research article
yongzeng feng
The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
Corresponding Author
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Objective
To investigate whether the Garden index can determine the rotational displacement of femoral neck fracture.
Methods
Ten healthy human femoral specimens were obtained. A 2.0 mm diameter Kirschner-wire was placed in the center of the femoral head. The osteotomy was perpendicular in the middle of the femoral neck. The distal osteotomy surface was indicated the angle of rotation (pronation and supination to 90°, every 10° was an interval). The X-ray of anterior-posterior and lateral view was taken at different angles according to the mark. The Garden index and other relevant data were analyzed with the PCAS system. Meanwhile, the change of the area of the femoral head fovea at different rotation angles was observed.
Results
There was no significant difference in the Garden index in 0~30° at pronation and supination position (P>0.05). In range of 40°~90°, there was a statistical difference in the Garden index (P<0.05). With the increase of the pronation angle, the area of the femoral head fovea is gradually reduced; as the angle of the supination increases, the area of the femoral head fovea is gradually increased.
Conclusion
The Garden Index cannot accurately determine the rotational displacement of the femoral neck fracture during the pronation or supination range of 0~30°. Changes in the area of the femoral head fovea can help determine the rotational displacement of the femoral neck fracture.
Level of Evidence
Level V.
Keywords
Garden index, femoral neck fracture, rotational displacement, imaging study
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Loading...
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 21 Jan, 2021
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Orthopedic Surgery
Learn more about our company.
A new preprint design is coming!
We have improved readability, clarity, accessibility, and opportunities for engagement.
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.
Research article
yongzeng feng
The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University
Corresponding Author
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 21 Jan, 2021
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Orthopedic Surgery
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Objective
To investigate whether the Garden index can determine the rotational displacement of femoral neck fracture.
Methods
Ten healthy human femoral specimens were obtained. A 2.0 mm diameter Kirschner-wire was placed in the center of the femoral head. The osteotomy was perpendicular in the middle of the femoral neck. The distal osteotomy surface was indicated the angle of rotation (pronation and supination to 90°, every 10° was an interval). The X-ray of anterior-posterior and lateral view was taken at different angles according to the mark. The Garden index and other relevant data were analyzed with the PCAS system. Meanwhile, the change of the area of the femoral head fovea at different rotation angles was observed.
Results
There was no significant difference in the Garden index in 0~30° at pronation and supination position (P>0.05). In range of 40°~90°, there was a statistical difference in the Garden index (P<0.05). With the increase of the pronation angle, the area of the femoral head fovea is gradually reduced; as the angle of the supination increases, the area of the femoral head fovea is gradually increased.
Conclusion
The Garden Index cannot accurately determine the rotational displacement of the femoral neck fracture during the pronation or supination range of 0~30°. Changes in the area of the femoral head fovea can help determine the rotational displacement of the femoral neck fracture.
Level of Evidence
Level V.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Figure 9
Figure 10
Figure 11
Loading...