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Research article
Mid-Term Results of Bilateral Synchronous Total Hip Arthroplasty for Bone Ankylosis in Patients With Ankylosing Spondylitis
Jingjing Liu
Zhejiang Chinese Medical University
Corresponding Author
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Background: Total hip arthroplasty (THA) for bony ankylosis is technically challenging in patients with ankylosing spondylitis (AS). This study aimed to determine the mid-term results of bilateral synchronous THA for bony ankylosis in patients with AS.
Methods: Nineteen cases of bony ankylosis in patients with AS who received bilateral synchronous THA were included in this study (17 males and 2 females, mean age 49.2 years). Disease duration was 5–38 years (mean 18 years and 6 months). All patients received cementless THA. Intraoperative blood loss, visual analogue scale (VAS) score, and complications were assessed. Harris hip scores evaluated the clinical effect.
Results: Patients were followed up for 62–98 months (mean 82.5 months). VAS score decreased from 7.42±0.92 to 2.42±0.83, Harris hip score improved from 21.8±7.2 to 80.3±6.5, and the flexion-extension range of the hip improved from 0°to 142.3±6.2°. One patient with septum bronchiale had a fracture intraoperatively and was treated with wire strapping. One patient had a traction injury of the femoral nerve postoperatively and recovered 1 year after the operation. Loosening and subsidence were not observed in all patients. Heterotopic bone formation was noted in 3 patients. No complications such as joint dislocation, acute infection, and deep vein thrombosis were found.
Conclusion：Bilateral synchronous THA was effective for bony ankylosis of the hip in patients with AS because it improved patients’ quality of life, and had satisfactory mid-term outcomes.
Keywords
arthroplasty, replacement, hip, spondylitis, ankylosing spondylitis
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CURRENT STATUS: Under Review
Version 1
Posted 18 Dec, 2020
No community comments so far
Editorial decision: Minor revision
On 20 Dec, 2020
Review #1 received
Received 19 Dec, 2020
Reviewer #3 agreed
On 18 Dec, 2020
Reviewer #2 agreed
On 15 Dec, 2020
Reviewer #1 agreed
On 15 Dec, 2020
Reviewers invited
Invitations sent on 15 Dec, 2020
Editor assigned
On 14 Dec, 2020
Submission checks complete
On 14 Dec, 2020
Editor invited
On 14 Dec, 2020
First submitted
On 11 Dec, 2020
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Subject Areas
Orthopedic Surgery
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This preprint is under consideration at Journal of Orthopaedic Surgery and Research. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research article
Mid-Term Results of Bilateral Synchronous Total Hip Arthroplasty for Bone Ankylosis in Patients With Ankylosing Spondylitis
Jingjing Liu
Zhejiang Chinese Medical University
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 18 Dec, 2020
No community comments so far
Editorial decision: Minor revision
On 20 Dec, 2020
Review #1 received
Received 19 Dec, 2020
Reviewer #3 agreed
On 18 Dec, 2020
Reviewer #2 agreed
On 15 Dec, 2020
Reviewer #1 agreed
On 15 Dec, 2020
Reviewers invited
Invitations sent on 15 Dec, 2020
Editor assigned
On 14 Dec, 2020
Submission checks complete
On 14 Dec, 2020
Editor invited
On 14 Dec, 2020
First submitted
On 11 Dec, 2020
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Orthopedic Surgery
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background: Total hip arthroplasty (THA) for bony ankylosis is technically challenging in patients with ankylosing spondylitis (AS). This study aimed to determine the mid-term results of bilateral synchronous THA for bony ankylosis in patients with AS.
Methods: Nineteen cases of bony ankylosis in patients with AS who received bilateral synchronous THA were included in this study (17 males and 2 females, mean age 49.2 years). Disease duration was 5–38 years (mean 18 years and 6 months). All patients received cementless THA. Intraoperative blood loss, visual analogue scale (VAS) score, and complications were assessed. Harris hip scores evaluated the clinical effect.
Results: Patients were followed up for 62–98 months (mean 82.5 months). VAS score decreased from 7.42±0.92 to 2.42±0.83, Harris hip score improved from 21.8±7.2 to 80.3±6.5, and the flexion-extension range of the hip improved from 0°to 142.3±6.2°. One patient with septum bronchiale had a fracture intraoperatively and was treated with wire strapping. One patient had a traction injury of the femoral nerve postoperatively and recovered 1 year after the operation. Loosening and subsidence were not observed in all patients. Heterotopic bone formation was noted in 3 patients. No complications such as joint dislocation, acute infection, and deep vein thrombosis were found.
Conclusion：Bilateral synchronous THA was effective for bony ankylosis of the hip in patients with AS because it improved patients’ quality of life, and had satisfactory mid-term outcomes.
Figure 1
Figure 1
Figure 1
Due to technical limitations, full-text HTML conversion of this manuscript could not be completed. However, the manuscript can be downloaded and accessed as a PDF.