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Total Hip Arthroplasty in Patients with Ankylosing Spondylitis: Midterm Radiologic and Functional Results

, - , 03.06.2016

Abstract

Introduction:
Ankylosing spondylitis (AS) is characterized by progressive joint erosion and the incidence of hip involvement in AS is between 30%-50%. The aim of this study was to evaluate the clinical and radiologic outcomes of THA in patients with AS.

Patients and Methods:
Retrospective review was included all patients diagnosed with hip involvement of AS and treated with THA between 1997 and 2012. Dorr's classification of proximal femoral geometry, acetabular protrusio, bone ankylosis, acetabular protrusion ,Brooker classification of heterotopic ossification(HO), Gruen and Charnley classifications of implant loosening were included as radiographic assessments. Patients were called back to return for an additional long-term follow-up for functional assesment.

Results:
There were 61 patients with 105 affected hips (72% bilateral, 28% unilateral). The average patient age at surgery was 41.3±10.2. Cementless total hip arthroplasty was used in 83 hips(79%) and cemented TKA was used in 22 hips(21%). The overall rate of aseptic loosening was 7.6% at a mean follow-up of 5.4 years. Femoral loosening was statistically similar in cemented and cementless femoral components(14% vs. 8%,p=0.089). Acetabular component loosening was statistically higher in patients with any degree of HO(p=0.04). Regardless of the type of femoral implant (cemented or cementless), femoral component loosening was higher in Dorr's type C patients(p=0.005). The average pre-operative HSS was 46.6±16.3, and it improved to 80.7±18.7 at last follow-up(p<0.01).

Conclusion:
Revision incidence was similar in between ankylosed and non-ankylosed hips. Complication rates are high but significant functional improvement can be achieve after THA in patients with AS.

Level IV study

 

DOI: 10.3944/AOTT.2015.16.0286
This abstract belongs to the un-edited version of the article and is only for informative purposes. Published version may differ from the current version.

, - , 03.06.2016

Abstract

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Details

Primary Language English
Journal Section Original Article
Authors

Yavuz Saglam

İrfan Öztürk

Mehmet Çakmak This is me

Mustafa Özdemir This is me

Önder Yazıcıoğlu This is me

Publication Date June 3, 2016
Published in Issue

Cite

APA Saglam, Y., Öztürk, İ., Çakmak, M., Özdemir, M., et al. (2016). Total Hip Arthroplasty in Patients with Ankylosing Spondylitis: Midterm Radiologic and Functional Results. Acta Orthopaedica Et Traumatologica Turcica.
AMA Saglam Y, Öztürk İ, Çakmak M, Özdemir M, Yazıcıoğlu Ö. Total Hip Arthroplasty in Patients with Ankylosing Spondylitis: Midterm Radiologic and Functional Results. Acta Orthopaedica et Traumatologica Turcica. Published online June 1, 2016.
Chicago Saglam, Yavuz, İrfan Öztürk, Mehmet Çakmak, Mustafa Özdemir, and Önder Yazıcıoğlu. “Total Hip Arthroplasty in Patients With Ankylosing Spondylitis: Midterm Radiologic and Functional Results”. Acta Orthopaedica Et Traumatologica Turcica, June (June 2016).
EndNote Saglam Y, Öztürk İ, Çakmak M, Özdemir M, Yazıcıoğlu Ö (June 1, 2016) Total Hip Arthroplasty in Patients with Ankylosing Spondylitis: Midterm Radiologic and Functional Results. Acta Orthopaedica et Traumatologica Turcica
IEEE Y. Saglam, İ. Öztürk, M. Çakmak, M. Özdemir, and Ö. Yazıcıoğlu, “Total Hip Arthroplasty in Patients with Ankylosing Spondylitis: Midterm Radiologic and Functional Results”, Acta Orthopaedica et Traumatologica Turcica, June 2016.
ISNAD Saglam, Yavuz et al. “Total Hip Arthroplasty in Patients With Ankylosing Spondylitis: Midterm Radiologic and Functional Results”. Acta Orthopaedica et Traumatologica Turcica. June 2016.
JAMA Saglam Y, Öztürk İ, Çakmak M, Özdemir M, Yazıcıoğlu Ö. Total Hip Arthroplasty in Patients with Ankylosing Spondylitis: Midterm Radiologic and Functional Results. Acta Orthopaedica et Traumatologica Turcica. 2016.
MLA Saglam, Yavuz et al. “Total Hip Arthroplasty in Patients With Ankylosing Spondylitis: Midterm Radiologic and Functional Results”. Acta Orthopaedica Et Traumatologica Turcica, 2016.
Vancouver Saglam Y, Öztürk İ, Çakmak M, Özdemir M, Yazıcıoğlu Ö. Total Hip Arthroplasty in Patients with Ankylosing Spondylitis: Midterm Radiologic and Functional Results. Acta Orthopaedica et Traumatologica Turcica. 2016.