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Does severe osteoarthritis in knees with varus deformity alter the adductor ratio?
- Source :
-
Acta orthopaedica et traumatologica turcica [Acta Orthop Traumatol Turc] 2017 Dec; Vol. 51 (6), pp. 437-441. Date of Electronic Publication: 2017 Oct 10. - Publication Year :
- 2017
-
Abstract
- Objective: In our retrospective study, we aimed to investigate the differences between the adductor ratio (AR) in knees with and without osteoarthritis, and its validity in determining the articular level.<br />Methods: Data from 80 knees of 80 patients were retrospectively evaluated. Anteroposterior weight-bearing knee radiographs of the patients with and without osteoarthritis (40 knees in each group) were obtained. The adductor ratio was determined using the following formula: ATJL/FW (adductor tubercle-joint line distance/femoral width). All radiographs were evaluated at the baseline and at one-month intervals afterwards. Intraobserver reliability of the two measurements was assessed using interclass correlations (ICC). Pearson's correlation test was used to evaluate the correlation between the ATJL and the FW. The differences between the adductor ratios of the two groups were evaluated by the independent samples two-tailed t-test.<br />Results: Most of the ICC values were well above 0.95, indicating a very high intraobserver reliability. The adductor ratio was significantly greater in Group 2 in comparison to Group 1 (Mean AR in Group 2: 0.522 ± 0.031 and Mean AR in Group 1: 0.502 ± 0.032; p = 0.005). There was a significant correlation between the ATJL and FW in the groups when assessed both separately and combined.<br />Conclusion: In conclusion, we can assert that if the AR is used to determine the articular level in revision arthroplasty cases, it may be sensible to measure the FW intraoperatively rather than measuring it on primary or contralateral radiographs of arthritic patients.<br />Level of Evidence: Level III, Diagnostic study.<br /> (Copyright © 2017 Turkish Association of Orthopaedics and Traumatology. Production and hosting by Elsevier B.V. All rights reserved.)
- Subjects :
- Aged
Female
Humans
Male
Middle Aged
Preoperative Care methods
Radiography methods
Reproducibility of Results
Retrospective Studies
Turkey
Weight-Bearing
Arthroplasty, Replacement, Knee adverse effects
Arthroplasty, Replacement, Knee methods
Femur diagnostic imaging
Femur pathology
Femur surgery
Joint Deformities, Acquired etiology
Joint Deformities, Acquired physiopathology
Joint Deformities, Acquired surgery
Knee Joint diagnostic imaging
Knee Joint physiopathology
Knee Joint surgery
Osteoarthritis, Knee complications
Osteoarthritis, Knee diagnosis
Osteoarthritis, Knee physiopathology
Osteoarthritis, Knee surgery
Range of Motion, Articular
Reoperation methods
Subjects
Details
- Language :
- English
- ISSN :
- 2589-1294
- Volume :
- 51
- Issue :
- 6
- Database :
- MEDLINE
- Journal :
- Acta orthopaedica et traumatologica turcica
- Publication Type :
- Academic Journal
- Accession number :
- 29029868
- Full Text :
- https://doi.org/10.1016/j.aott.2017.09.007