Changes in the spino-pelvic balance after hip replacement in patients with congenital hip dislocation
https://doi.org/10.14531/2018.4.80-86
Abstract
Objective. To analyze the features of the sagittal spino-pelvic balance formation in patients with congenital hip dislocation and its changes after total hip replacement with restoration of the rotation center.
Material and Methods. A retrospective analysis of medical documentation of 47 patients with congenital hip dislocation was performed, a total of 62 total hip replacements were performed. Patients were divided into two groups: Group I with unilateral congenital hip dislocation (n = 26) and Group II – with bilateral hip dislocation (n = 21). The processing and study of statistical correlation were carried out using the Spearman method at p ≤ 0.05.
Results. Patients with congenital hip dislocation had average preoperative value of the global lumbar lordosis of 64.1°, and the excess value of the sacral slope angle of 46.4°, which led to hyperlordosis. After surgery, the average value of the global lumbar lordosis was 57.2°, the sacral slope – 41.5°. There was a close relationship between these parameters (r = 0.787).
Conclusions. Restoration of the hip rotation center in patients with congenital hip dislocation contributes to a decrease in the sacrum incidence, pelvic anteversion, and lordosis.
About the Authors
L. S. Shnaider
Novosibirsk Research Institute of Traumatology and Orthopaedics n.a. Ya.L. Tsivyan
Russian Federation
Russian Federation
postgraduate student of Chair for traumatology and orthopaedics
Frunze str., 17, Novosibirsk, 630091
V. V. Pavlov
Novosibirsk Research Institute of Traumatology and Orthopaedics n.a. Ya.L. Tsivyan
Russian Federation
Russian Federation
DMSc, head of the Research Department of endoprosthetics and endoscopic joint surgery
Frunze str., 17, Novosibirsk, 630091
A. V. Krutko
Novosibirsk Research Institute of Traumatology and Orthopaedics n.a. Ya.L. Tsivyan
Russian Federation
Russian Federation
DMSc, head of Research Department of Neurovertebrology
Frunze str., 17, Novisibirsk, 630091
V. A. Bazlov
Novosibirsk Research Institute of Traumatology and Orthopaedics n.a. Ya.L. Tsivyan
Russian Federation
Russian Federation
junior researcher, Research Department of endoprosthetics and endoscopic joint surgery
Frunze str., 17, Novosibirsk, 630091
T. Z. Mamuladze
Novosibirsk Research Institute of Traumatology and Orthopaedics n.a. Ya.L. Tsivyan
Russian Federation
Russian Federation
junior researcher, Research Department of endoprosthetics and endoscopic joint surgery
Frunze str., 17, Novosibirsk, 630091
A. V. Peleganchuk
Novosibirsk Research Institute of Traumatology and Orthopaedics n.a. Ya.L. Tsivyan
Russian Federation
Russian Federation
MD, PhD, researcher, Research Department of Neurovertebrology
Frunze str., 17, Novosibirsk, 630091
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Review
For citations:
Shnaider L.S., Pavlov V.V., Krutko A.V., Bazlov V.A., Mamuladze T.Z., Peleganchuk A.V. Changes in the spino-pelvic balance after hip replacement in patients with congenital hip dislocation. Russian Journal of Spine Surgery (Khirurgiya Pozvonochnika). 2018;15(4):80-86. https://doi.org/10.14531/2018.4.80-86
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