The movement of the normal tibio-femoral joint

Freeman, Michael; Pinskerová, V.

doi:10.1016/j.jbiomech.2004.02.006

Cited by 433 publications

(381 citation statements)

References 79 publications

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“…These values are in the range of data from previous studies, as collected by Freeman and Pinskerova [18] in an extensive review of the literature. As shown before our knee specimens were almost moving physiologically, despite formalin fixation and restricted guidance.…”

Section: Discussionsupporting

confidence: 79%

“…The coordinate system was based on the reports of Grood et al [21] as well as McPherson et al [22]. The coordinate system was initially defined in full extension, since tibiofemoral rotation is least in this position [18,22]. Two-dimensional reconstructions of the data sets in the sagittal, frontal, and transverse planes as well as a threedimensional reconstruction of the entire data volume per knee and axis were selected for monitor display.…”

Section: Methodsmentioning

confidence: 99%

“…Lombardi et al [17] reported that in cases of a relatively tight flexion gap, equalizing flexion and extension gap can often be reached by increasing the tibial slope. This technique is implemented by surgeons in addition to the release of posterior ligaments assuming that "tibial roll-back" [18] during flexion prevents effects on the extension gap.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of tibial slope on extension and flexion gaps in total knee arthroplasty: increasing the tibial slope affects both gaps

Nowakowski

Kamphausen

Pagenstert

et al. 2014

International Orthopaedics (SICOT)

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Purpose Increasing the tibial slope is often performed if the flexion gap is narrower than the extension gap. The main hypothesis of this study is that increasing the tibial slope coincidentally enlarges the extension gap. Methods Twenty formalin-fixed cadaveric knees were obtained for study. After CT in full extension and 90°flexion, the data of each specimen were entered into a standardized coordinate system and virtual bone cuts were performed with incrementally increasing the posterior slope. Gaps were measured at tibiofemoral contact points in 90°-flexion and full extension in the medial and lateral compartment. Results Increasing the tibial slope did significantly widen both the extension and the flexion gaps (p<0.001). In extension, the opening rates, i.e. the gap increase per degree of slope increase, were equal medially and laterally (0.5 mm ±0.1) medial vs 0.6 mm (±0.0) lateral), whereas in flexion the lateral gap did open significantly more than the medial one (0.6 mm ±0.1) medial vs 0.9 mm (±0.1) lateral (p<0.001), resulting in a significantly greater flexion gap laterally.Conclusions Increasing the tibial slope beyond the preoperative planning in order to widen a tight flexion gap intra-operatively is not recommended as doing so will increase the extension gap simultaneously and will make the medial and lateral flexion gaps unequal.

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Section: Discussionsupporting

confidence: 79%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Influence of tibial slope on extension and flexion gaps in total knee arthroplasty: increasing the tibial slope affects both gaps

Nowakowski

Kamphausen

Pagenstert

et al. 2014

International Orthopaedics (SICOT)

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“…8,38 However, other studies reported different tibial rotation patterns in OA knees. 2,17 Siston et al 17 found internal rotation of 4.9 ± 4.1…”

Section: Discussionmentioning

confidence: 98%

Kinematics of medial osteoarthritic knees before and after posterior cruciate ligament retaining total knee arthroplasty

Yue

Varadarajan

Moynihan

et al. 2010

Journal Orthopaedic Research

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Total knee arthroplasty (TKA) is a widely accepted surgical procedure for the treatment of patients with end-stage osteoarthritis (OA). However, the function of the knee is not always fully recovered after TKA. We used a dual fluoroscopic imaging system to evaluate the in vivo kinematics of the knee with medial compartment OA before and after a posterior cruciate ligament-retaining TKA (PCR-TKA) during weight-bearing knee flexion, and compared the results to those of normal knees. The OA knees displayed similar internal/external tibial rotation to normal knees. However, the OA knees had less overall posterior femoral translation relative to the tibia between 0 • and 105 • flexion and more varus knee rotation between 0 • and 45 • flexion, than in the normal knees. Additionally, in the OA knees the femur was located more medially than in the normal knees, particularly between 30 • and 60 • flexion. After PCR-TKA, the knee kinematics were not restored to normal. The overall internal tibial rotation and posterior femoral translation between 0 • and 105 • knee flexion were dramatically reduced. Additionally, PCR-TKA introduced an abnormal anterior femoral translation during early knee flexion, and the femur was located lateral to the tibia throughout weight-bearing flexion. The data help understand the biomechanical functions of the knee with medial compartment OA before and after contemporary PCR-TKA. They may also be useful for improvement of future prostheses designs and surgical techniques in treatment of knees with end-stage OA.

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“…More recently, MRI has been used to measure changes in wall thickness and chamber volume (Costandi, et al, 2007) during heart contractions. Similar studies have monitored changes in cartilage thickness (Eckstein, et al, 2005), and joint kinematics (Freeman and Pinskerova, 2005) during joint articulation. In vitro studies with video microscopy have revealed marked spatial variation in the deformation and strain in articular cartilage (Schinagl, et al, 1997, Schinagl, et al, 1996, Wang, et al, 2002, and the deformation of single cells (Gilchrist, et al, 2007).…”

Section: Introductionmentioning

confidence: 95%

Experimental measurement and quantification of frictional contact between biological surfaces experiencing large deformation and slip

Gratz

Sah

2008

Journal of Biomechanics

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Interactions between contacting biological surfaces may play significant roles in physiological and pathological processes. Theoretical models have described some special cases of contact, using one or more simplifying assumptions. Experimental quantification of contact could help to validate theoretical analyses. The objective of this study was to develop a general mathematical approach describing the dynamics of deformation and relative surface motion between contacting bodies and to implement this approach to describe the contact between two experimentally-tracked tissue surfaces. A theoretical formulation (in 2-D and 3-D) of contact using the movement of discrete tissue markers is described. The method was validated using theoretically-generated 3-D datasets, with < 1% error for a wide range of parameters. The method was applied to the contact loading of opposing articular cartilage tissues, where displacements of cell nuclei were tracked optically and used to quantify the movements and deformations of the surfaces. Compared to tissues with matched material properties, tissues with mis-matched material properties exhibited increased disparities in lateral expansion and relative motion (sliding) between the contacting surfaces.

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The movement of the normal tibio-femoral joint

Cited by 433 publications

References 79 publications

Influence of tibial slope on extension and flexion gaps in total knee arthroplasty: increasing the tibial slope affects both gaps

Influence of tibial slope on extension and flexion gaps in total knee arthroplasty: increasing the tibial slope affects both gaps

Kinematics of medial osteoarthritic knees before and after posterior cruciate ligament retaining total knee arthroplasty

Experimental measurement and quantification of frictional contact between biological surfaces experiencing large deformation and slip

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