scholarly journals The Influence of Graft Tensioning Sequence on Tibiofemoral Orientation During Bicruciate and Posterolateral Corner Knee Ligament Reconstruction: A Biomechanical Study

2018 ◽  
Vol 46 (8) ◽  
pp. 1863-1869 ◽  
Author(s):  
Gilbert Moatshe ◽  
Jorge Chahla ◽  
Alex W. Brady ◽  
Grant J. Dornan ◽  
Kyle J. Muckenhirn ◽  
...  
Keyword(s):  
Internal Rotation ◽  
Ligament Reconstruction ◽  
Sagittal Plane ◽  
Cruciate Ligament ◽  
Posterolateral Corner ◽  
Knee Ligament ◽  
Intact State ◽  
Tibial Internal Rotation ◽  
Knee Ligament Reconstruction ◽  
Significant Difference

Background: During multiple knee ligament reconstructions, the graft tensioning order may influence the final tibiofemoral orientation and corresponding knee kinematics. Nonanatomic tibiofemoral orientation may result in residual knee instability, altered joint loading, and an increased propensity for graft failure. Purpose: To biomechanically evaluate the effect of different graft tensioning sequences on knee tibiofemoral orientation after multiple knee ligament reconstructions in a bicruciate ligament (anterior cruciate ligament [ACL] and posterior cruciate ligament [PCL]) with a posterolateral corner (PLC)–injured knee. Study Design: Controlled laboratory study. Methods: Ten nonpaired, fresh-frozen human cadaveric knees were utilized for this study. After reconstruction of both cruciate ligaments and the PLC and proximal graft fixation, each knee was randomly assigned to each of 4 graft tensioning order groups: (1) PCL → ACL → PLC, (2) PCL → PLC → ACL, (3) PLC → ACL → PCL, and (4) ACL → PCL → PLC. Tibiofemoral orientation after graft tensioning was measured and compared with the intact state. Results: Tensioning the ACL first (tensioning order 4) resulted in posterior displacement of the tibia at 0° by 1.7 ± 1.3 mm compared with the intact state ( P = .002). All tensioning orders resulted in significantly increased tibial anterior translation compared with the intact state at higher flexion angles ranging from 2.7 mm to 3.2 mm at 60° and from 3.1 mm to 3.4 mm at 90° for tensioning orders 1 and 2, respectively (all P < .001). There was no significant difference in tibiofemoral orientation in the sagittal plane between the tensioning orders at higher flexion angles. All tensioning orders resulted in increased tibial internal rotation (all P < .001). Tensioning and fixing the PLC first (tensioning order 3) resulted in the most increases in internal rotation of the tibia: 2.4° ± 1.9°, 2.7° ± 1.8°, and 2.0° ± 2.0° at 0°, 30°, and 60°, respectively. Conclusion: None of the tensioning orders restored intact knee tibiofemoral orientation. Tensioning the PLC first should be avoided in bicruciate knee ligament reconstruction with concurrent PLC reconstruction because it significantly increased tibial internal rotation. We recommend that the PCL be tensioned first, followed by the ACL, to avoid posterior translation of the tibia in extension where the knee is primarily loaded during most activities. The PLC should be tensioned last. Clinical Relevance: This study will help guide surgeons in decision making for the graft tensioning order during multiple knee ligament reconstructions.

scholarly journals The Influence of Graft Tensioning Sequence on Tibiofemoral Orientation during Bicruciate and Posterolateral Corner Knee Ligament Reconstruction: A Biomechanical Study

2018 ◽  
Vol 6 (7_suppl4) ◽  
pp. 2325967118S0006
Author(s):  
Gilbert Moatshe ◽  
Jorge Chahla ◽  
Alex Brady ◽  
Grant Dornan ◽  
Kyle Muckenhirn ◽  
...  
Keyword(s):  
Internal Rotation ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Posterolateral Corner ◽  
Tibial Rotation ◽  
Knee Ligament ◽  
Intact State ◽  
Knee Ligament Reconstruction ◽  
Significant Difference ◽  
Tibial Translation

Objectives: During a multiple knee ligament reconstruction, the graft tensioning order may influence the final tibiofemoral orientation and corresponding knee kinematics. Therefore, the objective of this study was to biomechanically evaluate the effect of different graft tensioning sequences on knee tibiofemoral orientation following multiple knee ligament reconstruction in a bicruciate ligament (anterior cruciate ligament [ACL] and posterior cruciate ligament [PCL]) with posterolateral corner [PLC] injured knee. Methods: Ten non-paired, fresh-frozen human cadaveric knees were utilized for this study. Following reconstruction of both cruciate and posterolateral corner ligaments and proximal graft fixation, each knee was randomly assigned to each of four graft tensioning order groups: (1) PCL → ACL → PLC, (2) PCL → PLC → ACL, (3) PLC → ACL → PCL and (4) ACL → PCL → PLC. The tibiofemoral orientation after graft tensioning was measured and compared to the intact states. Results: Tensioning the ACL first (tensioning order 4) resulted in posterior displacement of the tibia at 0° by 1.7 ± 1.3 mm compared to the intact state (p=0.002) (Figure 1). All tensioning orders resulted in significantly increased anterior tibial translation compared to the intact state at higher flexion angles ranging from 2.7 mm to 3.2 mm at 60° and 3.1 mm to 3.4 mm at 90° for tensioning orders 1 and 2 respectively (all p<0.001). There was no significant difference in tibiofemoral orientation in the sagittal plane between the tensioning orders at higher flexion angles. All tensioning orders resulted in increased internal tibial rotation (all p<0.001). Tensioning and fixing the PLC first (tensioning order 3) resulted in the most increases in internal rotation of the tibia; 2.4° ± 1.9°, 2.7° ± 1.8° and 2.0° ± 2.0° at 0°, 30° and 60° respectively (Table 1). Conclusion: None of the tensioning orders restored intact knee tibiofemoral orientation. Tensioning the posterolateral corner first should be avoided in bicruciate knee ligament reconstruction with a concurrent posterolateral corner reconstruction because it significantly increased tibial internal rotation. We recommend that the PCL be tensioned first, followed by the ACL to avoid posterior translation of the tibia in extension where the knee is primarily loaded with most activities and finally the PLC. [Figure: see text][Table: see text]

scholarly journals The knee in congenital femoral deficiency and its implication in limb lengthening: a systematic review

2021 ◽  
Vol 6 (7) ◽  
pp. 565-571
Author(s):  
Chilan Bou Ghosson Leite ◽  
Patricia Moreno Grangeiro ◽  
Diego Ubrig Munhoz ◽  
Pedro Nogueira Giglio ◽  
Gilberto Luis Camanho ◽  
...  
Keyword(s):  
Lower Limb ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Knee Dislocation ◽  
Limb Lengthening ◽  
Cruciate Ligaments ◽  
Knee Ligament ◽  
Rotatory Instability ◽  
Posterolateral Rotatory Instability ◽  
Knee Ligament Reconstruction

Congenital femoral deficiency (CFD) is a rare disorder with several limb anomalies including limb shortening and knee cruciate ligament dysplasia. Limb lengthening is usually performed to correct lower limb discrepancy. However, complications, such as knee subluxation/dislocation, can occur during this treatment. Here, we explore CFD knee abnormalities and knee dislocation during limb elongation, discussing when and whether knee ligament reconstruction prior to the lengthening would be necessary to reduce the risk of knee dislocation. There is not enough support in the literature for the routine reconstruction of cruciate ligaments in CFD patients. Of note, in cases of severe anteroposterior or posterolateral rotatory instability, cruciate ligament reconstruction might be considered to decrease the risk of knee subluxation/dislocation during the lengthening treatment. Cite this article: EFORT Open Rev 2021;6:565-571. DOI: 10.1302/2058-5241.6.200075

scholarly journals Modified exorotation graft tension for tibial fixation in anterior cruciate ligament reconstruction: a randomized controlled trial

2018 ◽  
Vol 27 (3) ◽  
pp. 169-77 ◽  
Author(s):  
Ludwig A.P. Pontoh ◽  
Ismail H. Dilogo ◽  
Saptawati Bardosono ◽  
Andri M.T. Lubis ◽  
Alida R. Harahap ◽  
...  
Keyword(s):  
Internal Rotation ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Tibial Fixation ◽  
Graft Tension ◽  
Tibial Internal Rotation ◽  
Kujala Score ◽  
Cartilage Breakdown ◽  
Anterior Cruciate ◽  
A New Technique

Background: The inability of anterior cruciate ligament reconstruction (ACLR) surgery to reduce tibial internal rotation causes many problems. A large tibial internal rotation will result in a patellofemoral pain syndrome. This study aimed to introduce a new technique of modified exorotation graft tension at tibial fixation to minimize endorotation, reduce tibial internal rotation, and prevent patellofemoral pain syndrome.Methods: This study was a randomized double-blind controlled clinical trial. ACL rupture patients underwent ACLR surgery between December 2014 and Februrary 2015. They were randomized to standard endorotation group or modified exorotation group. Hamstring autograft was used and fixed with an EndoButton® and bioabsorbable interference screw. Tibial tubercle to trochlear grove (TTTG) was used to evaluate rotation, whereas cartilage oligomeric matrix protein (COMP) was employed to analyze cartilage breakdown. The functional outcome was measured using the Kujala score to assess patellofemoral joint function. Evaluations were conducted before the surgery and at 6 months postoperation.Results: A total of 29 subjects were recruited. Sixteen subjects were allocated into the standard endorotation group, and 13 were assigned to the modified exorotation group. The exorotation group demonstrated better results than the endorotation group in all three parameters: TTTG (p=0.028), COMP (p<0.001), and Kujala score (p=0.015).Conclusion: A new technique of modified exorotation direction of graft tension for ACL reconstructive surgery at tibial fixation showed a significant reduction in tibial internal rotation and cartilage breakdown. The proposed method could significantly improve the functional outcome of those with total ACL rupture.

scholarly journals CLINICAL OUTCOMES AFTER TWO-STAGE BICRUCIATE KNEE LIGAMENT RECONSTRUCTION

2021 ◽  
Vol 29 (1) ◽  
pp. 7-11
Author(s):  
MAURO MITUSO INADA ◽  
SÉRGIO ROCHA PIEDADE
Keyword(s):  
Mental Health ◽  
Ligament Reconstruction ◽  
Short Form ◽  
Cruciate Ligament ◽  
Activity Level ◽  
Self Assessment ◽  
Two Stage ◽  
Knee Ligament ◽  
Sf 36 ◽  
Knee Ligament Reconstruction

ABSTRACT Objective: To correlate clinical and intraoperative findings with the postoperative evaluation of two-stage bicruciate knee ligament reconstruction. Methods: The study was conducted with 25 patients (20 men and 05 women) with mean age of 32.3 years, mean body mass index (BMI) of 26.2, and mean lesion duration of 18.3 months. The treatment consisted of an Inlay reconstruction of the posterior cruciate ligament (PCL) followed by the anterior cruciate ligament (ACL) reconstruction, at least 3 months after the first surgical procedure. Four patients required additional procedures: patellar tendon (02), medial collateral ligament (MCL) (02). Results: With an average follow-up of 24.8 months, 60% of the patients scored zero or + at the posterior drawer test, while 40% scored ++; 60% of patients were evaluated as good/excellent according to the Lysholm scale. Only one patient reached the pre-injury Tegner activity level. Injury duration had a negative influence on functional limitation, vitality, and mental health (SF-36). Conclusion: Although two-stage bicruciate knee ligament reconstruction improved knee stability and self-assessment, 96% of patients did not recover their pre-injury state. In the 36-item short form survey (SF-36), injury duration was inversely correlated with self-assessment of functional capacity, physical limitation, vitality, and mental health. Level of Evidence II, retrospective study.

scholarly journals Passive Knee Stability After Anterior Cruciate Ligament Reconstruction Using the Endobutton or ToggleLoc With ZipLoop as a Femoral Fixation Device: A Comparison of 1654 Patients From the Danish Knee Ligament Reconstruction Registry

2018 ◽  
Vol 6 (6) ◽  
pp. 232596711877850 ◽  
Author(s):  
Christian Asmus Peter Asmussen ◽  
Mikkel Lindegaard Attrup ◽  
Kristian Thorborg ◽  
Per Hölmich
Keyword(s):  
Anterior Cruciate Ligament ◽  
Ligament Reconstruction ◽  
Pivot Shift ◽  
Cruciate Ligament ◽  
Pivot Shift Test ◽  
Knee Stability ◽  
Knee Ligament ◽  
Knee Ligament Reconstruction ◽  
Anterior Cruciate ◽  
Tibial Translation

Background: Biomechanical studies show varying results regarding the elongation of adjustable fixation devices. This has led to growing concern over the stability of the ToggleLoc with ZipLoop used in anterior cruciate ligament (ACL) reconstruction (ACLR) in vivo. Purpose/Hypothesis: The purpose of this study was to compare passive knee stability 1 year after ACLR in patients in whom the Endobutton or ToggleLoc with ZipLoop was used for femoral graft fixation. The hypothesis was that the ToggleLoc with ZipLoop would be inferior in knee stability to the Endobutton 1 year after primary ACLR. Study Design: Cohort study; Level of evidence, 2. Methods: Data from 3175 patients (Endobutton: n = 2807; ToggleLoc with ZipLoop: n = 368) were included from the Danish Knee Ligament Reconstruction Registry (DKRR) between June 2010 and September 2013. Data were retrieved from standardized ACL forms filled out by the operating surgeon preoperatively, during surgery, and at a clinical examination 1 year after surgery. Passive knee stability was evaluated using 1 of 2 arthrometers (Rolimeter or KT-1000 arthrometer) and the pivot-shift test. Using the same database, the number of reoperations performed up to 4 years after primary surgery was examined. Results: Full data were available for 1654 patients (Endobutton: n = 1538; ToggleLoc with ZipLoop: n = 116). ACLR with both devices resulted in increased passive knee stability ( P < .001). Patients who received the ToggleLoc with ZipLoop were found to have a better preoperative ( P = .005 ) and postoperative ( P < .001) pivot-shift test result. No statistically significant difference regarding the number of reoperations ( P = .086) or the time to reoperation ( P = .295) was found. Conclusion: Patients who underwent fixation with the ToggleLoc with ZipLoop had improved passive knee stability 1 year after surgery, measured by anterior tibial translation and pivot-shift test results, similar to patients who underwent fixation with the Endobutton. No difference was seen in knee stability or reoperation rates between the 2 devices.

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