Analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.

<h4>Background</h4>Lateral patellar dislocation (LPD) frequently causes damage to the knee. Injury patterns and risk factors contributing to such injuries have not yet been examined in detail.<h4>Methods</h4>We retrospectively analyzed 50 consecutive patients with primary LPD...

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Autores principales:	Yannick Palmowski, Tobias Jung, Anne-Katrin Doering, Clemens Gwinner, Imke Schatka, Benjamin Bartek
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/51114dfd9be4411290471c66ff4e69b0
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spelling	oai:doaj.org-article:51114dfd9be4411290471c66ff4e69b02021-12-02T20:16:57ZAnalysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.1932-620310.1371/journal.pone.0258240https://doaj.org/article/51114dfd9be4411290471c66ff4e69b02021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0258240https://doaj.org/toc/1932-6203<h4>Background</h4>Lateral patellar dislocation (LPD) frequently causes damage to the knee. Injury patterns and risk factors contributing to such injuries have not yet been examined in detail.<h4>Methods</h4>We retrospectively analyzed 50 consecutive patients with primary LPD. Two reviewers evaluated the MRI images regarding risk factors for LPD (Dejours classification; Caton-Deschamps Index, CDI; distance from the tibial tuberosity to trochlear groove, TT-TG; trochlear depth, TD) as well as joint damages according to the Whole-Organ Magnetic Resonance Imaging Score (WORMS).<h4>Results</h4>33 male and 17 female patients with a mean age of 23.2 (±9.6) years were included in this study. 52% were classified Dejours ≥ B, 34% had a CDI ≥ 1.3, 22% a TT-TG ≥ 20mm and 52% a TD < 3mm. 49 out of 50 patients (98%) showed abnormalities according to WORMS. The most frequently observed abnormalities were synovitis/effusion (49/50, 98%), bone marrow oedema (44/50, 88%) and cartilage damage (42/50, 84%). Most frequently affected subregions were medial (41/50, 82%) and lateral (31/50, 62%) patella as well as the anterior (43/50, 86%), central (42/50, 84%) and posterior (11/50, 22%) portion of the lateral femoral condyle. There was no significant correlation between any of the examined risk factors and joint damages according to WORMS. Male patients had higher scores regarding total cartilage damage (5.11 vs. 2.56, p = 0.029), total score for the lateral femorotibial joint (3.15 vs. 1.65, p = 0.026) and overall total WORMS score (12.15 vs. 8.29, p = 0.038).<h4>Conclusion</h4>Risk factors for LPD do not influence the risk of damages to the knee joint after primary LPD. Although LPD is generally known to affect more female than male patients, male patients suffered more severe injuries after primary LPD, particularly of the lateral femorotibial joint. Overall, our results underline the importance of MRI imaging after primary LPD.Yannick PalmowskiTobias JungAnne-Katrin DoeringClemens GwinnerImke SchatkaBenjamin BartekPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 10, p e0258240 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Yannick Palmowski Tobias Jung Anne-Katrin Doering Clemens Gwinner Imke Schatka Benjamin Bartek Analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.
description	<h4>Background</h4>Lateral patellar dislocation (LPD) frequently causes damage to the knee. Injury patterns and risk factors contributing to such injuries have not yet been examined in detail.<h4>Methods</h4>We retrospectively analyzed 50 consecutive patients with primary LPD. Two reviewers evaluated the MRI images regarding risk factors for LPD (Dejours classification; Caton-Deschamps Index, CDI; distance from the tibial tuberosity to trochlear groove, TT-TG; trochlear depth, TD) as well as joint damages according to the Whole-Organ Magnetic Resonance Imaging Score (WORMS).<h4>Results</h4>33 male and 17 female patients with a mean age of 23.2 (±9.6) years were included in this study. 52% were classified Dejours ≥ B, 34% had a CDI ≥ 1.3, 22% a TT-TG ≥ 20mm and 52% a TD < 3mm. 49 out of 50 patients (98%) showed abnormalities according to WORMS. The most frequently observed abnormalities were synovitis/effusion (49/50, 98%), bone marrow oedema (44/50, 88%) and cartilage damage (42/50, 84%). Most frequently affected subregions were medial (41/50, 82%) and lateral (31/50, 62%) patella as well as the anterior (43/50, 86%), central (42/50, 84%) and posterior (11/50, 22%) portion of the lateral femoral condyle. There was no significant correlation between any of the examined risk factors and joint damages according to WORMS. Male patients had higher scores regarding total cartilage damage (5.11 vs. 2.56, p = 0.029), total score for the lateral femorotibial joint (3.15 vs. 1.65, p = 0.026) and overall total WORMS score (12.15 vs. 8.29, p = 0.038).<h4>Conclusion</h4>Risk factors for LPD do not influence the risk of damages to the knee joint after primary LPD. Although LPD is generally known to affect more female than male patients, male patients suffered more severe injuries after primary LPD, particularly of the lateral femorotibial joint. Overall, our results underline the importance of MRI imaging after primary LPD.
format	article
author	Yannick Palmowski Tobias Jung Anne-Katrin Doering Clemens Gwinner Imke Schatka Benjamin Bartek
author_facet	Yannick Palmowski Tobias Jung Anne-Katrin Doering Clemens Gwinner Imke Schatka Benjamin Bartek
author_sort	Yannick Palmowski
title	Analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.
title_short	Analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.
title_full	Analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.
title_fullStr	Analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.
title_full_unstemmed	Analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.
title_sort	analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/51114dfd9be4411290471c66ff4e69b0
work_keys_str_mv	AT yannickpalmowski analysisofcartilageinjurypatternsandriskfactorsforkneejointdamageinpatientswithprimarylateralpatelladislocations AT tobiasjung analysisofcartilageinjurypatternsandriskfactorsforkneejointdamageinpatientswithprimarylateralpatelladislocations AT annekatrindoering analysisofcartilageinjurypatternsandriskfactorsforkneejointdamageinpatientswithprimarylateralpatelladislocations AT clemensgwinner analysisofcartilageinjurypatternsandriskfactorsforkneejointdamageinpatientswithprimarylateralpatelladislocations AT imkeschatka analysisofcartilageinjurypatternsandriskfactorsforkneejointdamageinpatientswithprimarylateralpatelladislocations AT benjaminbartek analysisofcartilageinjurypatternsandriskfactorsforkneejointdamageinpatientswithprimarylateralpatelladislocations
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Analysis of cartilage injury patterns and risk factors for knee joint damage in patients with primary lateral patella dislocations.

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