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Title: | The effect of weight-bearing positions on coronal lower limb alignment: A systematic review | Authors: | COLYN, William Vanbecelaere, Lukas BRUCKERS, Liesbeth Scheys, Lennart BELLEMANS, Johan |
Issue Date: | 2023 | Publisher: | ELSEVIER | Source: | KNEE, 43 , p. 51 -61 | Abstract: | Background: The coronal alignment of the lower limb is generally accepted as a major determinant of surgical outcome in total knee arthroplasty (TKA). To achieve the ideal post-operative alignment, surgeons need to be aware of the influence that weight -bearing positions have on the final knee alignment. Therefore, this review aims to define the effect of varying weight-bearing positions on the coronal alignment of the lower limb. We hypothesized that a coronal alignment defor-mity increases with loading. Methods: The PubMed, Medline and google scholar databases were searched systemati-cally in June 2022. Only studies which compared coronal alignment with a standardized radiographic protocol in the single leg, double leg and supine positions were included. To obtain pooled estimates of the effect of different weight-bearing positions, random -effect analysis were fitted using SAS. Results: Compared to the supine position, double leg weight-bearing positions were found to be associated with a more pronounced varus deformity (mean difference in HKA is 1,76 & DEG; (95% CI 1,32: 2,21), p < 0.0001)). The mean difference in HKA between double leg and single leg weight-bearing conditions was 1.43 & DEG; (95% CI (-0,042;2,90), p = 0.0528). Conclusion: The overall knee alignment was found to be influenced by the weight-bearing position. An average difference of 1.76 & DEG; in HKA-angle was found between a double leg -stance and supine position, tending to increased varus in the former weight-bearing posi-tion. It is therefore possible that the deformity could increase by 1.76 & DEG; if knee surgeons only follow a pre-op planning based on double-leg stance full length radiographs. & COPY; 2023 Elsevier B.V. All rights reserved. | Notes: | Colyn, W (corresponding author), AZ Turnhout, Orthopaed Dept, Steenweg Merksplas 44, B-2300 Turnhout, Belgium. william_colyn@hotmail.com |
Keywords: | Weight-bearing;Alignment;Lower limb;Position | Document URI: | http://hdl.handle.net/1942/40567 | ISSN: | 0968-0160 | e-ISSN: | 1873-5800 | DOI: | 10.1016/j.knee.2023.05.004 | ISI #: | 001013481100001 | Rights: | 2023 Elsevier B.V. All rights reserved. | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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The effect of weight-bearing positions on coronal lower limb alignment_ A systematic review.pdf Restricted Access | Published version | 962.43 kB | Adobe PDF | View/Open Request a copy |
THEKNE-D-22-00457_R1 (1).pdf | Peer-reviewed author version | 983.9 kB | Adobe PDF | View/Open |
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