Towards planning of osteotomy around the knee with quantitative inclusion of the adduction moment: a biomechanical approach.
Adduction moment
Biomechanics of osteotomy
High tibial osteotomy
Leg alignment
Medial compartment force ratio
Supracondylar osteotomy
Journal
Journal of experimental orthopaedics
ISSN: 2197-1153
Titre abrégé: J Exp Orthop
Pays: Germany
ID NLM: 101653750
Informations de publication
Date de publication:
11 Jun 2021
11 Jun 2021
Historique:
received:
27
06
2020
accepted:
06
01
2021
entrez:
11
6
2021
pubmed:
12
6
2021
medline:
12
6
2021
Statut:
epublish
Résumé
Despite practised for decades, the planning of osteotomy around the knee, commonly using the Mikulicz-Line, is only empirically based, clinical outcome inconsistent and the target angle still controversial. A better target than the angle of frontal-plane static leg alignment might be the external frontal-plane lever arm (EFL) of the knee adduction moment. Hypothetically assessable from frontal-plane-radiograph skeleton dimensions, it might depend on the leg-alignment angle, the hip-centre-to-hip-centre distance, the femur- and tibia-length. The target EFL to achieve a medial compartment force ratio of 50% during level-walking was identified by relating in-vivo-measurement data of knee-internal loads from nine subjects with instrumented prostheses to the same subjects' EFLs computed from frontal-plane skeleton dimensions. Adduction moments derived from these calculated EFLs were compared to the subjects' adduction moments measured during gait analysis. Highly significant relationships (0.88 ≤ R Osteotomy outcome might be improved by planning re-alignment based on the provided formulas exploiting full-leg-radiograph skeleton dimensions.
Identifiants
pubmed: 34115238
doi: 10.1186/s40634-021-00324-3
pii: 10.1186/s40634-021-00324-3
pmc: PMC8193456
doi:
Types de publication
Journal Article
Langues
eng
Pagination
39Subventions
Organisme : Deutsche Forschungsgemeinschaft
ID : Be 804/18, TR 1657/1-1, SFB 1444, Da 1786/5-1
Organisme : Deutsche Forschungsgemeinschaft
ID : Be 804/18, TR 1657/1-1, SFB 1444, Da 1786/5-1
Organisme : Bundesministerium für Bildung und Forschung
ID : OVERLOAD-PrevOP, 01EC1408A,01 EC1408A. workHEALTH, 01EC1905D
Organisme : Bundesministerium für Bildung und Forschung
ID : OVERLOAD-PrevOP, 01EC1408A,01 EC1408A. workHEALTH, 01EC1905D
Commentaires et corrections
Type : ErratumIn
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