The epidemic of alignment classifications in total knee arthroplasty forgives the kinematic of the human knee

doi:10.1002/jeo2.70052

Editorial

. 2024 Oct 24;11(4):e70052.

doi: 10.1002/jeo2.70052. eCollection 2024 Oct.

The epidemic of alignment classifications in total knee arthroplasty forgives the kinematic of the human knee

Pier Francesco Indelli^{1

2

3

4

5

6}

Affiliations

¹ Südtiroler Sanitätsbetrieb Brixen Italy.
² Institute of Biomechanics Paracelsus Medical University Salzburg Austria.
³ Paolo Aglietti Gait Lab, CESAT Azienda Sanitaria Toscana Centro Fucecchio Italy.
⁴ The Breyer Center for Overseas Studies Stanford University in Florence Florence Italy.
⁵ Ortho Team Research ETS Florence Italy.
⁶ European Society of Sports Traumatology, Knee Surgery Arthroscopy (ESSKA) Basic Science Committee Luxembourg.

PMID: 39449827
PMCID: PMC11499622
DOI: 10.1002/jeo2.70052

Editorial

The epidemic of alignment classifications in total knee arthroplasty forgives the kinematic of the human knee

Pier Francesco Indelli. J Exp Orthop. 2024.

. 2024 Oct 24;11(4):e70052.

doi: 10.1002/jeo2.70052. eCollection 2024 Oct.

Author

Pier Francesco Indelli^{1

2

3

4

5

6}

Affiliations

¹ Südtiroler Sanitätsbetrieb Brixen Italy.
² Institute of Biomechanics Paracelsus Medical University Salzburg Austria.
³ Paolo Aglietti Gait Lab, CESAT Azienda Sanitaria Toscana Centro Fucecchio Italy.
⁴ The Breyer Center for Overseas Studies Stanford University in Florence Florence Italy.
⁵ Ortho Team Research ETS Florence Italy.
⁶ European Society of Sports Traumatology, Knee Surgery Arthroscopy (ESSKA) Basic Science Committee Luxembourg.

PMID: 39449827
PMCID: PMC11499622
DOI: 10.1002/jeo2.70052

No abstract available

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Conflict of interest statement

The author declares no conflict of interest.

Figures

**Figure 1**
Robotic assisted right knee TKA. Intraoperative evaluation of the knee ROM from full extension (a) to maximum flexion (d): the alignment of the knee is also intraoperatively determined. (a) Knee in full extension (slight hyperextension): 0.9° valgus; (b) knee flexed at 60°: 10° varus; (c) Knee flexed at 90.5°: 6.4° varus; (d) Knee flexed at 124.5°: 3.8° varus. The evaluation has been performed without applying any adduction/abduction moment to the hip or varus/valgus stress to the knee (Skywalker Robotic System, Medbot Navi‐Bot). The dynamicity of the HKA is intraoperatively noted. HKA, hip‐knee‐ankle axis; ROM, range of motion; TKA, total knee arthroplasty.

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References

1. Andriacchi, T.P. , Stanwyck, T.S. & Galante, J.O. (1986) Knee biomechanics and total knee replacement. The Journal of Arthroplasty, 1, 211–219. Available from: 10.1016/S0883‐5403(86)80033‐X - DOI - PubMed
1. Clément, J. , Blakeney, W. , Hagemeister, N. , Desmeules, F. , Mezghani, N. , Lowry, V. et al. (2019) Hip‐knee‐ankle (HKA) angle modification during gait in healthy subjects. Gait & Posture, 72, 62–68. Available from: 10.1016/j.gaitpost.2019.05.025 - DOI - PubMed
1. Duffell, L.D. , Mushtaq, J. , Masjedi, M. & Cobb, J.P. (2014) The knee adduction angle of the osteo‐arthritic knee: a comparison of 3D supine, static and dynamic alignment. The Knee, 21, 1096–1100. Available from: 10.1016/j.knee.2014.09.002 - DOI - PubMed
1. Farrokhi, S. , O'Connell, M. , Gil, A.B. , Sparto, P.J. & Fitzgerald, G.K. (2015) Altered gait characteristics in individuals with knee osteoarthritis and self‐reported knee instability. Journal of Orthopaedic & Sports Physical Therapy, 45(5), 351–359. Available from: 10.2519/jospt.2015.5540 - DOI - PMC - PubMed
1. Gu, C. , Mao, Y. , Dong, H. , Cui, Y. & Fu, M. (2022) Is static alignment a good predictor of dynamic alignment after total knee arthroplasty? Healthcare, 10, 418. Available from: 10.3390/healthcare10030418 - DOI - PMC - PubMed

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[1] Andriacchi, T.P. , Stanwyck, T.S. & Galante, J.O. (1986) Knee biomechanics and total knee replacement. The Journal of Arthroplasty, 1, 211–219. Available from: 10.1016/S0883‐5403(86)80033‐X - DOI - PubMed

[2] Andriacchi, T.P. , Stanwyck, T.S. & Galante, J.O. (1986) Knee biomechanics and total knee replacement. The Journal of Arthroplasty, 1, 211–219. Available from: 10.1016/S0883‐5403(86)80033‐X - DOI - PubMed

[3] Clément, J. , Blakeney, W. , Hagemeister, N. , Desmeules, F. , Mezghani, N. , Lowry, V. et al. (2019) Hip‐knee‐ankle (HKA) angle modification during gait in healthy subjects. Gait & Posture, 72, 62–68. Available from: 10.1016/j.gaitpost.2019.05.025 - DOI - PubMed

[4] Clément, J. , Blakeney, W. , Hagemeister, N. , Desmeules, F. , Mezghani, N. , Lowry, V. et al. (2019) Hip‐knee‐ankle (HKA) angle modification during gait in healthy subjects. Gait & Posture, 72, 62–68. Available from: 10.1016/j.gaitpost.2019.05.025 - DOI - PubMed

[5] Duffell, L.D. , Mushtaq, J. , Masjedi, M. & Cobb, J.P. (2014) The knee adduction angle of the osteo‐arthritic knee: a comparison of 3D supine, static and dynamic alignment. The Knee, 21, 1096–1100. Available from: 10.1016/j.knee.2014.09.002 - DOI - PubMed

[6] Duffell, L.D. , Mushtaq, J. , Masjedi, M. & Cobb, J.P. (2014) The knee adduction angle of the osteo‐arthritic knee: a comparison of 3D supine, static and dynamic alignment. The Knee, 21, 1096–1100. Available from: 10.1016/j.knee.2014.09.002 - DOI - PubMed

[7] Farrokhi, S. , O'Connell, M. , Gil, A.B. , Sparto, P.J. & Fitzgerald, G.K. (2015) Altered gait characteristics in individuals with knee osteoarthritis and self‐reported knee instability. Journal of Orthopaedic & Sports Physical Therapy, 45(5), 351–359. Available from: 10.2519/jospt.2015.5540 - DOI - PMC - PubMed

[8] Farrokhi, S. , O'Connell, M. , Gil, A.B. , Sparto, P.J. & Fitzgerald, G.K. (2015) Altered gait characteristics in individuals with knee osteoarthritis and self‐reported knee instability. Journal of Orthopaedic & Sports Physical Therapy, 45(5), 351–359. Available from: 10.2519/jospt.2015.5540 - DOI - PMC - PubMed

[9] Gu, C. , Mao, Y. , Dong, H. , Cui, Y. & Fu, M. (2022) Is static alignment a good predictor of dynamic alignment after total knee arthroplasty? Healthcare, 10, 418. Available from: 10.3390/healthcare10030418 - DOI - PMC - PubMed

[10] Gu, C. , Mao, Y. , Dong, H. , Cui, Y. & Fu, M. (2022) Is static alignment a good predictor of dynamic alignment after total knee arthroplasty? Healthcare, 10, 418. Available from: 10.3390/healthcare10030418 - DOI - PMC - PubMed

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The epidemic of alignment classifications in total knee arthroplasty forgives the kinematic of the human knee

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The epidemic of alignment classifications in total knee arthroplasty forgives the kinematic of the human knee

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Affiliations

Conflict of interest statement

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