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Published in: Archives of Orthopaedic and Trauma Surgery 10/2020

01-10-2020 | Hip-TEP | Hip Arthroplasty

Blood loss in primary total hip arthroplasty with a short versus conventional cementless stem: a retrospective cohort study

Authors: Mattia Loppini, Antonello Della Rocca, Davide Ferrentino, Costanza Pizzi, Guido Grappiolo

Published in: Archives of Orthopaedic and Trauma Surgery | Issue 10/2020

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Abstract

Introduction

To evaluate the impact of short cementless stem on several clinical and radiographic outcomes, with particular focus on blood loss, in comparison with conventional cementless stem in total hip arthroplasty (THA).

Materials and methods

Patients undergoing THA with GTS short stem or CLS conventional stem were included. Clinical data were retrospectively collected including preoperative and postoperative day 1 value for haemoglobin (HB); rate of postoperative blood transfusions; intraoperative bone infractions; stem alignment; 5-year follow-up Harris Hip Score (HHS) and rate of stem revision at 5 years of follow-up of the short and conventional cementless stem.

Results

GTS and CLS stem group included 374 and 321 patients, respectively. The mean difference between the preoperative and postoperative day 1 HB value was 3.98 g/dL (SD 1.12) and 3.67 g/dL (SD 1.19) in the GTS and CLS group, respectively, which correspond to a crude effect (β) of 0.32 (95% CI 0.15; 0.49) and adjusted effect of 0.11 (95% CI − 0.08; 0.3). GTS group reported a significantly higher number of patients with excellent results in terms of HHS (p = 0.001). The rate of intraoperative bone infractions was 1.6% and 0.3% in the GTS and CLS group, respectively (p = 0.013). At radiographic assessment, the rate of varus position of the stem was 14% in the GTS group and 6% in the CLS group (p < 0.0001). The rate of stem revision at 5 years of follow-up was 0.8% and 0.4% in the GTS and CLS group, respectively (p = 0.63).

Conclusions

GTS short stem was not associated with a clinically significant lower blood loss in the immediately postoperative period. Unadjusted exploratory analyses show that GTS stem provides the same results of CLS stem in terms of HHS and rate of stem revision at 5 years of follow-up.
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Metadata
Title
Blood loss in primary total hip arthroplasty with a short versus conventional cementless stem: a retrospective cohort study
Authors
Mattia Loppini
Antonello Della Rocca
Davide Ferrentino
Costanza Pizzi
Guido Grappiolo
Publication date
01-10-2020
Publisher
Springer Berlin Heidelberg
Keywords
Hip-TEP
Hip-TEP
Published in
Archives of Orthopaedic and Trauma Surgery / Issue 10/2020
Print ISSN: 0936-8051
Electronic ISSN: 1434-3916
DOI
https://doi.org/10.1007/s00402-020-03561-w

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