Coronal shaft bowing of the femur affects varus inclination of the surgical transepicondylar axis in varus knee osteoarthritis.
Aged
Aged, 80 and over
Ankle Joint
/ diagnostic imaging
Arthroplasty, Replacement, Knee
/ methods
Female
Femur
/ diagnostic imaging
Genu Varum
/ surgery
Humans
Knee
/ diagnostic imaging
Knee Joint
/ diagnostic imaging
Male
Middle Aged
Osteoarthritis, Knee
/ surgery
Radiography
/ methods
Tomography, X-Ray Computed
/ methods
Computed tomography
Femoral shaft bowing
Frontal and sagittal plane
Surgical transepicondylar axis
Total knee arthroplasty
Varus knee osteoarthritis
Journal
Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA
ISSN: 1433-7347
Titre abrégé: Knee Surg Sports Traumatol Arthrosc
Pays: Germany
ID NLM: 9314730
Informations de publication
Date de publication:
Mar 2021
Mar 2021
Historique:
received:
13
11
2019
accepted:
21
04
2020
pubmed:
27
4
2020
medline:
5
5
2021
entrez:
27
4
2020
Statut:
ppublish
Résumé
This study investigated the relationship between femoral shaft bowing and the orientation of the surgical transepicondylar axis (TEA) in the coronal plane in varus knee osteoarthritis (OA). A total of 82 knees scheduled to undergo total knee arthroplasty (TKA) for the treatment of varus knee OA were enrolled. The hip-knee-ankle angle (HKA) was measured preoperatively on anteroposterior whole-leg standing radiographs. The lateral angle between the TEA and the mechanical axis of the femur (MA-TEA) was measured in the coronal plane from preoperative computed tomography (CT) images. Femoral shaft bowing was measured on CT images. Pearson's correlation coefficient was used to examine the correlation of the MA-TEA with the HKA and femoral shaft bowing. The MA-TEA correlated negatively with the HKA (r = - 0.321, P < 0.01) and positively with femoral shaft bowing (r = 0.415, P < 0.01). The TEA changed to varus as femoral shaft bowing increased in patients with varus knee OA. This suggests that the TEA is not always the centre of the rotational axis of the femur after TKA. In addition, the TEA may not be useful as a consistent parameter in the coronal plane in patients with increasing femoral shaft bowing. III.
Identifiants
pubmed: 32335698
doi: 10.1007/s00167-020-06025-1
pii: 10.1007/s00167-020-06025-1
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
814-819Références
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