Improved Calculation Method of TAD for Intertrochanteric Fractures
Purpose. To investigate the relative position of femur fixed screws using intramedullary systems for intertrochanteric fractures and to improve the accurate measurement method of the tip-to-apex distance (TAD) while providing a theoretical basis for the clinical treatment of such fractures. Methods....
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Applied Bionics and Biomechanics |
| Online Access: | http://dx.doi.org/10.1155/2022/7729959 |
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| author | Jialong Wang Anhua Long Xuefei Wang Yakui Zhang Dacheng Han |
| author_facet | Jialong Wang Anhua Long Xuefei Wang Yakui Zhang Dacheng Han |
| author_sort | Jialong Wang |
| collection | DOAJ |
| description | Purpose. To investigate the relative position of femur fixed screws using intramedullary systems for intertrochanteric fractures and to improve the accurate measurement method of the tip-to-apex distance (TAD) while providing a theoretical basis for the clinical treatment of such fractures. Methods. In the anteroposterior (AP) radiographs of the hip joint, the femoral neck axis through the femoral head geometry point was designated as the X-axis, while the line perpendicular to the X-axis passing through the femoral head geometry point was designated as the Y-axis. In the lateral radiographs of the hip joint, the line perpendicular to the X-axis passing through the femoral head geometry point was identified as the Z-axis. The head of the nail tip’s location projected on the three axes was described as AAP, B in the AP radiographs; and ALAT, C in the lateral radiograph. The TAD was described as XAP and XLAT. The radius of the femoral head was D. All distance units were expressed in mm. Results. When the lateral projection angle was standardized, the AAP was equal to the ALAT, while the XAP2=B2+D−AAP2 and XLAT2=C2+D−ALAT2. When the lateral projection angle was not standardized, the value of C had no significant change; however, the D−ALAT value changed. Conclusions. The measurement value did not match the actual values of TAD when the lateral projection angle was not standardized, possibly leading to a misinterpretation during clinical work. The XLAT should be amended using the formula XLAT2=C2+D−AAP2. |
| format | Article |
| id | doaj-art-fe7e346d4d8543198cebbdf0fdb86d3f |
| institution | Kabale University |
| issn | 1754-2103 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied Bionics and Biomechanics |
| spelling | doaj-art-fe7e346d4d8543198cebbdf0fdb86d3f2025-02-03T05:57:26ZengWileyApplied Bionics and Biomechanics1754-21032022-01-01202210.1155/2022/7729959Improved Calculation Method of TAD for Intertrochanteric FracturesJialong Wang0Anhua Long1Xuefei Wang2Yakui Zhang3Dacheng Han4Department of OrthopedicsDepartment of OrthopedicsDepartment of OrthopedicsDepartment of OrthopedicsDepartment of OrthopedicsPurpose. To investigate the relative position of femur fixed screws using intramedullary systems for intertrochanteric fractures and to improve the accurate measurement method of the tip-to-apex distance (TAD) while providing a theoretical basis for the clinical treatment of such fractures. Methods. In the anteroposterior (AP) radiographs of the hip joint, the femoral neck axis through the femoral head geometry point was designated as the X-axis, while the line perpendicular to the X-axis passing through the femoral head geometry point was designated as the Y-axis. In the lateral radiographs of the hip joint, the line perpendicular to the X-axis passing through the femoral head geometry point was identified as the Z-axis. The head of the nail tip’s location projected on the three axes was described as AAP, B in the AP radiographs; and ALAT, C in the lateral radiograph. The TAD was described as XAP and XLAT. The radius of the femoral head was D. All distance units were expressed in mm. Results. When the lateral projection angle was standardized, the AAP was equal to the ALAT, while the XAP2=B2+D−AAP2 and XLAT2=C2+D−ALAT2. When the lateral projection angle was not standardized, the value of C had no significant change; however, the D−ALAT value changed. Conclusions. The measurement value did not match the actual values of TAD when the lateral projection angle was not standardized, possibly leading to a misinterpretation during clinical work. The XLAT should be amended using the formula XLAT2=C2+D−AAP2.http://dx.doi.org/10.1155/2022/7729959 |
| spellingShingle | Jialong Wang Anhua Long Xuefei Wang Yakui Zhang Dacheng Han Improved Calculation Method of TAD for Intertrochanteric Fractures Applied Bionics and Biomechanics |
| title | Improved Calculation Method of TAD for Intertrochanteric Fractures |
| title_full | Improved Calculation Method of TAD for Intertrochanteric Fractures |
| title_fullStr | Improved Calculation Method of TAD for Intertrochanteric Fractures |
| title_full_unstemmed | Improved Calculation Method of TAD for Intertrochanteric Fractures |
| title_short | Improved Calculation Method of TAD for Intertrochanteric Fractures |
| title_sort | improved calculation method of tad for intertrochanteric fractures |
| url | http://dx.doi.org/10.1155/2022/7729959 |
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