ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2025
Specific fibre areas in the femoral footprint of the posterior cruciate ligament act as a major contributor in resisting posterior tibial displacement: A biomechanical robotic investigation.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Consistency of Subcortical Osseous Structures in Femoral Cruciate Ligament Attachment Sites: A Combined 3D-CT and Histological Anatomical Study.Journal of personalized medicine · 2026Article
- [Research progress of tibial tunnel positioning techniques in posterior cruciate ligament reconstruction].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2026Review
- The meniscofemoral ligaments do not contribute to restriction of posterior tibial translation: A robotic biomechanical analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Article
- A flat posterior cruciate ligament reconstruction restores native knee kinematics, comparable to a double-bundle reconstruction-A biomechanical robotic investigation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- Specific fibre areas in the femoral footprint of the posterior cruciate ligament act as a major contributor in resisting posterior tibial displacement: A biomechanical robotic investigation.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Article
- The central fibre areas in the tibial footprint of the posterior cruciate ligament show the highest contribution to restriction of a posterior drawer force-A biomechanical robotic investigation.Journal of experimental orthopaedics · 2025Article
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Abstract
purposeSimilar to the anterior cruciate ligament, the femoral footprint of the posterior cruciate ligament (PCL) is composed of different fibre areas, possibly having distinct biomechanical functions. The aim of this study was to determine the role of different fibre areas of the femoral footprint of the PCL in restraining posterior tibial translation (PTT).
methodsA sequential cutting study was performed on eight fresh-frozen human knee specimens, utilizing a six-degrees-of-freedom robotic test setup. The femoral attachment of the PCL was divided into 15 areas, which were sequentially cut from the bone in a randomized sequence. After determining the native knee kinematics, a displacement-controlled protocol was performed replaying the native motion, while constantly measuring the force. The reduction of the restraining force presented the percentage contribution of each cut, according to the principle of superposition.
resultsThe PCL was found to contribute 29 ± 16% in 0°, 51 ± 24% in 30°, 60 ± 22% in 60° and 55 ± 18% in 90°, to restricting a PTT. The fibre areas contributing the most were located at the proximal border of the PCL footprint, away from the cartilage, and directly adjacent to the medial intercondylar ridge (p < 0.05). Of these, one fibre area showed the highest contribution at all flexion angles. This area was located at the posterior half of the medial intercondylar ridge. No clear assignment of the areas to either the anterolateral or posteromedial bundle was possible.
conclusionAn area towards the proximal and posterior part of the femoral PCL footprint was found to significantly restrain a posterior tibial force. Based on the data of this testing setup, a PCL graft positioned at the identified area may best mimic the part of the native PCL, which bears the most load in resisting a PTT force. LEVEL OF EVIDENCE: No evidence level (laboratory study).
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