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Screw-Home Movement of the Tibiofemoral Joint during Normal Gait: Three-Dimensional Analysis.

Kim HY, Kim KJ, Yang DS, Jeung SW, Choi HG, Choy WS - Clin Orthop Surg (2015)

Bottom Line: With respect to kinematics and kinetics, both males and females showed normal adult gait patterns, and the mean difference in the temporal gait parameters was not statistically significant (p > 0.05).Paradoxical screw-home movement may be an important mechanism that provides stability to the knee joint during the remaining stance phase.Obtaining the kinematic values of the knee joint during gait can be useful in diagnosing and treating the pathological knee joints.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopedic Surgery, Eulji University College of Medicine, Daejeon, Korea.

ABSTRACT

Background: The purpose of this study was to evaluate the screw-home movement at the tibiofemoral joint during normal gait by utilizing the 3-dimensional motion capture technique.

Methods: Fifteen young males and fifteen young females (total 60 knee joints) who had no history of musculoskeletal disease or a particular gait problem were included in this study. Two more markers were attached to the subject in addition to the Helen-Hayes marker set. Thus, two virtual planes, femoral coronal plane (P f ) and tibial coronal plane (P t ), were created by Skeletal Builder software. This study measured the 3-dimensional knee joint movement in the sagittal, coronal, and transverse planes of these two virtual planes (P f and P t ) during normal gait.

Results: With respect to kinematics and kinetics, both males and females showed normal adult gait patterns, and the mean difference in the temporal gait parameters was not statistically significant (p > 0.05). In the transverse plane, the screw-home movement occurred as expected during the pre-swing phase and the late-swing phase at an angle of about 17°. However, the tibia rotated externally with respect to the femur, rather than internally, while the knee joint started to flex during the loading response (paradoxical screw-home movement), and the angle was 6°.

Conclusions: Paradoxical screw-home movement may be an important mechanism that provides stability to the knee joint during the remaining stance phase. Obtaining the kinematic values of the knee joint during gait can be useful in diagnosing and treating the pathological knee joints.

No MeSH data available.


Related in: MedlinePlus

This schematic image shows the two virtual planes (the femoral coronal plane and tibial coronal plane) created using the SKB program. A: distal thigh, B: medial femoral epicondyle, C: lateral femoral epicondyle, L: shank, M: medial tibial condyle, N: fibular head.
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Figure 3: This schematic image shows the two virtual planes (the femoral coronal plane and tibial coronal plane) created using the SKB program. A: distal thigh, B: medial femoral epicondyle, C: lateral femoral epicondyle, L: shank, M: medial tibial condyle, N: fibular head.

Mentions: For this study, two virtual planes (the femoral coronal plane [Pf] and tibial coronal plane [Pt]) were created using the SKB program (Fig. 3). The lower leg marker was attached on the front side of proximal one-third of the lower leg. The line connecting the two proximal markers (M and N in Fig. 3) almost matched the flexion-extension axis of the proximal tibial articular surface. The relative movement of the virtual Pt, as to the virtual Pf, was measured by the degree of freedom in 3Ds. The coordinate system was defined as follows: the valgus/varus angle (+/-) was measured on the coronal plane (x-axis), while the internal rotation/external rotation angle (+/-) was measured on the transverse plane (y-axis). The flexion/extension angle (+/-) was measured on the sagittal plane (z-axis).


Screw-Home Movement of the Tibiofemoral Joint during Normal Gait: Three-Dimensional Analysis.

Kim HY, Kim KJ, Yang DS, Jeung SW, Choi HG, Choy WS - Clin Orthop Surg (2015)

This schematic image shows the two virtual planes (the femoral coronal plane and tibial coronal plane) created using the SKB program. A: distal thigh, B: medial femoral epicondyle, C: lateral femoral epicondyle, L: shank, M: medial tibial condyle, N: fibular head.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4553277&req=5

Figure 3: This schematic image shows the two virtual planes (the femoral coronal plane and tibial coronal plane) created using the SKB program. A: distal thigh, B: medial femoral epicondyle, C: lateral femoral epicondyle, L: shank, M: medial tibial condyle, N: fibular head.
Mentions: For this study, two virtual planes (the femoral coronal plane [Pf] and tibial coronal plane [Pt]) were created using the SKB program (Fig. 3). The lower leg marker was attached on the front side of proximal one-third of the lower leg. The line connecting the two proximal markers (M and N in Fig. 3) almost matched the flexion-extension axis of the proximal tibial articular surface. The relative movement of the virtual Pt, as to the virtual Pf, was measured by the degree of freedom in 3Ds. The coordinate system was defined as follows: the valgus/varus angle (+/-) was measured on the coronal plane (x-axis), while the internal rotation/external rotation angle (+/-) was measured on the transverse plane (y-axis). The flexion/extension angle (+/-) was measured on the sagittal plane (z-axis).

Bottom Line: With respect to kinematics and kinetics, both males and females showed normal adult gait patterns, and the mean difference in the temporal gait parameters was not statistically significant (p > 0.05).Paradoxical screw-home movement may be an important mechanism that provides stability to the knee joint during the remaining stance phase.Obtaining the kinematic values of the knee joint during gait can be useful in diagnosing and treating the pathological knee joints.

View Article: PubMed Central - PubMed

Affiliation: Department of Orthopedic Surgery, Eulji University College of Medicine, Daejeon, Korea.

ABSTRACT

Background: The purpose of this study was to evaluate the screw-home movement at the tibiofemoral joint during normal gait by utilizing the 3-dimensional motion capture technique.

Methods: Fifteen young males and fifteen young females (total 60 knee joints) who had no history of musculoskeletal disease or a particular gait problem were included in this study. Two more markers were attached to the subject in addition to the Helen-Hayes marker set. Thus, two virtual planes, femoral coronal plane (P f ) and tibial coronal plane (P t ), were created by Skeletal Builder software. This study measured the 3-dimensional knee joint movement in the sagittal, coronal, and transverse planes of these two virtual planes (P f and P t ) during normal gait.

Results: With respect to kinematics and kinetics, both males and females showed normal adult gait patterns, and the mean difference in the temporal gait parameters was not statistically significant (p > 0.05). In the transverse plane, the screw-home movement occurred as expected during the pre-swing phase and the late-swing phase at an angle of about 17°. However, the tibia rotated externally with respect to the femur, rather than internally, while the knee joint started to flex during the loading response (paradoxical screw-home movement), and the angle was 6°.

Conclusions: Paradoxical screw-home movement may be an important mechanism that provides stability to the knee joint during the remaining stance phase. Obtaining the kinematic values of the knee joint during gait can be useful in diagnosing and treating the pathological knee joints.

No MeSH data available.


Related in: MedlinePlus