Experimental validation of a new technique for the assessment of posterior tibial translation (ABC angle) after posterior cruciate ligament rupture
Abstract Background The aim of this cadaver study was to evaluate an original technique for measuring posterior tibial translation based on an angle value instead of a distance value, with and without posterior stress application. It was hypothesized that an angle measurement of the posterior tibial...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Experimental Orthopaedics |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40634-021-00395-2 |
| _version_ | 1827356166970146816 |
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| author | M. Severyns M.‐E. Rollet T. Vendeuvre S. Pesenti A. Benzakour J.‐L. Rouvillain |
| author_facet | M. Severyns M.‐E. Rollet T. Vendeuvre S. Pesenti A. Benzakour J.‐L. Rouvillain |
| author_sort | M. Severyns |
| collection | DOAJ |
| description | Abstract Background The aim of this cadaver study was to evaluate an original technique for measuring posterior tibial translation based on an angle value instead of a distance value, with and without posterior stress application. It was hypothesized that an angle measurement of the posterior tibial translation would confirm the presence of a PCL tear with the knee flexed and completely extended. Method Using fresh cadavers, a set of strict lateral views were taken by fluoroscopy with the knee at 0°, 45° and 90° flexion on the intact knee and after transecting the PCL. The primary endpoint was the change in the posterior translation measured using a new technique, the ABC angle. This measurement was compared to the conventional posterior translation distance measurement with and without a posterior stress placed on the knee. Results Application of a posterior stress revealed clear changes in posterior translation after PCL transection with the knee at 0° for the angle technique and at 45° and 90° for the two techniques (p < 0.05). Contrary to the reference method, the ABC angle method found a statistically significant difference in posterior translation with the knee in extension. Conclusion Our technique provides a reliable radiographic measurement of posterior translation with the knee in extension, which should make it easier to acquire radiographs in patients who have pain with knee flexion. This angular measurement also has the advantage of not needing length calibration contrary to the reference technique. Level of evidence IV |
| first_indexed | 2024-03-08T04:55:53Z |
| format | Article |
| id | doaj.art-cd2191113922405c89bb3108810787f5 |
| institution | Directory Open Access Journal |
| issn | 2197-1153 |
| language | English |
| last_indexed | 2024-03-08T04:55:53Z |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Experimental Orthopaedics |
| spelling | doaj.art-cd2191113922405c89bb3108810787f52024-02-07T15:16:42ZengWileyJournal of Experimental Orthopaedics2197-11532021-01-0181n/an/a10.1186/s40634-021-00395-2Experimental validation of a new technique for the assessment of posterior tibial translation (ABC angle) after posterior cruciate ligament ruptureM. Severyns0M.‐E. Rollet1T. Vendeuvre2S. Pesenti3A. Benzakour4J.‐L. Rouvillain5Orthopaedics and Traumatology DepartmentCHU MartiniqueF‐97200Fort‐de‐FranceFranceOrthopaedics and Traumatology DepartmentCHU MartiniqueF‐97200Fort‐de‐FranceFranceOrthopaedics and Traumatology DepartmentCHU PoitiersF‐86021PoitiersFrancePaediatric Orthopaedics DepartmentCHU La TimoneF‐13005MarseillesFranceOrthopaedics DepartmentClinique de l’ArchetteF‐45160OlivetFranceOrthopaedics and Traumatology DepartmentCHU MartiniqueF‐97200Fort‐de‐FranceFranceAbstract Background The aim of this cadaver study was to evaluate an original technique for measuring posterior tibial translation based on an angle value instead of a distance value, with and without posterior stress application. It was hypothesized that an angle measurement of the posterior tibial translation would confirm the presence of a PCL tear with the knee flexed and completely extended. Method Using fresh cadavers, a set of strict lateral views were taken by fluoroscopy with the knee at 0°, 45° and 90° flexion on the intact knee and after transecting the PCL. The primary endpoint was the change in the posterior translation measured using a new technique, the ABC angle. This measurement was compared to the conventional posterior translation distance measurement with and without a posterior stress placed on the knee. Results Application of a posterior stress revealed clear changes in posterior translation after PCL transection with the knee at 0° for the angle technique and at 45° and 90° for the two techniques (p < 0.05). Contrary to the reference method, the ABC angle method found a statistically significant difference in posterior translation with the knee in extension. Conclusion Our technique provides a reliable radiographic measurement of posterior translation with the knee in extension, which should make it easier to acquire radiographs in patients who have pain with knee flexion. This angular measurement also has the advantage of not needing length calibration contrary to the reference technique. Level of evidence IVhttps://doi.org/10.1186/s40634-021-00395-2Posterior translationPosterior cruciate ligamentAngle measurement |
| spellingShingle | M. Severyns M.‐E. Rollet T. Vendeuvre S. Pesenti A. Benzakour J.‐L. Rouvillain Experimental validation of a new technique for the assessment of posterior tibial translation (ABC angle) after posterior cruciate ligament rupture Journal of Experimental Orthopaedics Posterior translation Posterior cruciate ligament Angle measurement |
| title | Experimental validation of a new technique for the assessment of posterior tibial translation (ABC angle) after posterior cruciate ligament rupture |
| title_full | Experimental validation of a new technique for the assessment of posterior tibial translation (ABC angle) after posterior cruciate ligament rupture |
| title_fullStr | Experimental validation of a new technique for the assessment of posterior tibial translation (ABC angle) after posterior cruciate ligament rupture |
| title_full_unstemmed | Experimental validation of a new technique for the assessment of posterior tibial translation (ABC angle) after posterior cruciate ligament rupture |
| title_short | Experimental validation of a new technique for the assessment of posterior tibial translation (ABC angle) after posterior cruciate ligament rupture |
| title_sort | experimental validation of a new technique for the assessment of posterior tibial translation abc angle after posterior cruciate ligament rupture |
| topic | Posterior translation Posterior cruciate ligament Angle measurement |
| url | https://doi.org/10.1186/s40634-021-00395-2 |
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