Influence of Posterior Tibial Slope on the Risk of Recurrence After Anterior Cruciate Ligament Reconstruction
- Authors: Ryazantsev M.S.1,2, Logvinov A.N.1, Ilyin D.O.1,2, Magnitskaya N.E.1, Zaripov A.R.1,2, Frolov A.1,2, Afanasyev A.P.1, Korolev A.V.1,2
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Affiliations:
- European Clinic of Sports Traumatology and Orthopedics (ECSTO)
- RUDN University
- Issue: Vol 29, No 3 (2023)
- Pages: 46-52
- Section: Clinical studies
- URL: https://ogarev-online.ru/2311-2905/article/view/255260
- DOI: https://doi.org/10.17816/2311-2905-7986
- ID: 255260
Cite item
Abstract
Background. Anterior cruciate ligament (ACL) graft rupture has multifactorial causes, with traumatic factors being the most prevalent. Modern literature presents conflicting data regarding the influence of the posterior tibial slope on the risk of traumatic ACL graft rupture.
Aim of the study — to determine if there is a correlation between the posterior tibial slope and ACL graft injury in patients who have previously undergone ACL reconstruction.
Methods. This was a single-center cohort retrospective study that included patients diagnosed with a complete ACL rupture and who had undergone ACL reconstruction using standard techniques without graft rupture at the last follow-up. Inclusion criteria for the first group included a diagnosis of traumatic ACL rupture followed by reconstruction, a graft composed of semitendinosus and gracilis tendons (St+Gr), femoral fixation with a cortical button, tibial fixation with a sleeve and screw, and the absence of graft rupture at the time of the study. This group included 30 consecutive patients (15 males and 15 females) with a mean age of 36.3 years (min 17, max 59). Inclusion criteria for the second group included an indirect traumatic mechanism of ACL graft rupture and subsequent revision ACL reconstruction. This group consisted of 33 patients (23 males and 10 females) with a mean age of 33.0 years (min 19, max 60). The lateral (LPTS) and medial (MPTS) posterior tibial slopes were measured on lateral knee radiographs.
Results. The median time from surgery to the last follow-up in the first group was 65 months (IQR 60; 66), while in the second group, it was 48 months (IQR 9; 84). The median MPTS in the first group was 7.8° (IQR 5.3; 9.4), while in the second group, it was 8.5° (IQR 7.5; 11). The median LPTS in the first group was 9.9° (IQR 8.4; 12.1), whereas in the second group, it was 12.0° (IQR 9; 15.4). There was no statistically significant difference in MPTS and LPTS based on gender in both groups and the entire sample (p>0.05). When comparing LPTS values between both groups, a statistically significant difference (p = 0.04) was found, with higher LPTS values in patients in the second group (with ACL graft injury).
Conclusion. Increased posterior tibial slope, particularly LPTS, is identified as a potential predictor of ACL graft rupture. The study demonstrates the impact of LPTS on the risk of ACL graft rupture (p<0.05) in cases of indirect traumatic injury.
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##article.viewOnOriginalSite##About the authors
Mikhail S. Ryazantsev
European Clinic of Sports Traumatology and Orthopedics (ECSTO); RUDN University
Author for correspondence.
Email: dtwka88@yandex.ru
ORCID iD: 0000-0002-9333-5293
Cand. Sci. (Med.)
Russian Federation, Moscow; MoscowAleksey N. Logvinov
European Clinic of Sports Traumatology and Orthopedics (ECSTO)
Email: alogvinov@emcmos.ru
ORCID iD: 0000-0003-3235-5407
Cand. Sci. (Med.)
Russian Federation, MoscowDmitriy O. Ilyin
European Clinic of Sports Traumatology and Orthopedics (ECSTO); RUDN University
Email: ilyinshoulder@gmail.com
ORCID iD: 0000-0003-2493-4601
Dr. Sci. (Med.)
Russian Federation, Moscow; MoscowNina E. Magnitskaya
European Clinic of Sports Traumatology and Orthopedics (ECSTO)
Email: magnitskaya.nina@gmail.com
ORCID iD: 0000-0002-4336-036X
Cand. Sci. (Med.)
Russian Federation, MoscowAziz R. Zaripov
European Clinic of Sports Traumatology and Orthopedics (ECSTO); RUDN University
Email: azaripov@emcmos.ru
ORCID iD: 0000-0003-1282-3285
Russian Federation, Moscow; Moscow
Alexander Frolov
European Clinic of Sports Traumatology and Orthopedics (ECSTO); RUDN University
Email: afrolov@emcmos.ru
ORCID iD: 0000-0002-2973-8303
Cand. Sci. (Med.)
Russian Federation, Moscow; MoscowAleksey P. Afanasyev
European Clinic of Sports Traumatology and Orthopedics (ECSTO)
Email: aafanasyev@emcmos.ru
ORCID iD: 0000-0002-2933-5686
Cand. Sci. (Med.)
Russian Federation, MoscowAndrey V. Korolev
European Clinic of Sports Traumatology and Orthopedics (ECSTO); RUDN University
Email: akorolev@emcmos.ru
ORCID iD: 0000-0002-8769-9963
Dr. Sci. (Med.)
Russian Federation, Moscow; MoscowReferences
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