Improving MiniHip femoral prosthesis positioning using a cross-laser projection system in total hip arthroplasty by an anterolateral supine approach.
MiniHip
anterolateral supine approach
hip arthroplasty
minimally invasive surgery
patient-specific
short stem
Journal
The international journal of medical robotics + computer assisted surgery : MRCAS
ISSN: 1478-596X
Titre abrégé: Int J Med Robot
Pays: England
ID NLM: 101250764
Informations de publication
Date de publication:
Apr 2021
Apr 2021
Historique:
received:
06
08
2020
revised:
20
11
2020
accepted:
21
12
2020
pubmed:
29
12
2020
medline:
21
7
2021
entrez:
28
12
2020
Statut:
ppublish
Résumé
The authors developed a cross-laser projection system (CLP) to place a femoral neck-sparing short stem using the minimally invasive anterolateral supine approach in total hip arthroplasty. This study aimed to verify the utility of CLP. Thirty joints were assessed with the MiniHip (Corin). The authors compared femoral component implantation with a patient-specific femoral osteotomy guide (PSG) for the femoral neck-cut (PSG group), with the CLP attached to the rasp handle to irradiate the cross-laser to the target of PSG (CLP group), and without PSG or CLP (control group). In the CLP group, the positional deviation of anteversion, anterior/posterior tilt and varus/valgus placement of the stem postoperatively were 1.8° ± 0.2°, 2.0° ± 2.0° and 2.0° ± 0.1°, respectively. The positional deviation of anteversion (p < 0.001) and anterior/posterior tilt (p = 0.036) were significantly smaller than those in the other groups. CLP improves the accuracy of MiniHip femoral prosthesis placement.
Sections du résumé
BACKGROUND
BACKGROUND
The authors developed a cross-laser projection system (CLP) to place a femoral neck-sparing short stem using the minimally invasive anterolateral supine approach in total hip arthroplasty. This study aimed to verify the utility of CLP.
METHODS
METHODS
Thirty joints were assessed with the MiniHip (Corin). The authors compared femoral component implantation with a patient-specific femoral osteotomy guide (PSG) for the femoral neck-cut (PSG group), with the CLP attached to the rasp handle to irradiate the cross-laser to the target of PSG (CLP group), and without PSG or CLP (control group).
RESULTS
RESULTS
In the CLP group, the positional deviation of anteversion, anterior/posterior tilt and varus/valgus placement of the stem postoperatively were 1.8° ± 0.2°, 2.0° ± 2.0° and 2.0° ± 0.1°, respectively. The positional deviation of anteversion (p < 0.001) and anterior/posterior tilt (p = 0.036) were significantly smaller than those in the other groups.
CONCLUSIONS
CONCLUSIONS
CLP improves the accuracy of MiniHip femoral prosthesis placement.
Identifiants
pubmed: 33369069
doi: 10.1002/rcs.2214
pmc: PMC7988605
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2214Informations de copyright
© 2021 The Authors. The International Journal of Medical Robotics and Computer Assisted Surgery published by John Wiley & Sons Ltd.
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