Radiological Riskfactors for Dislocation of Hip Hemiarthroplasty (RRDHHR)
Radiological Riskfactors for Dislocation of Hip Hemiarthroplasty Through a Posterolateral Approach as Treatment for Femoral Neck Fracture
Between January 1 2006 and December 31 2013, at our department 324 patients underwent hemiarthroplasty (HA) for displaced femoral-neck fracture with a bipolar prosthesis (Variokopf, Link®, Germany) by the use of the posteriolateral approach. Patients with pathological fractures and HA performed with direct lateral approach were excluded. A retrospective cohort study were conducted. Patients with prosthetic dislocation formed one group and patients without dislocation formed the control group.
As standard, post surgery radiographs (anteroposterior and lateral) were taken. After these were performed patient started weight bearing as soon as possible. Clinical data regarding patient demographics, details of the surgical procedure and the medical comorbidities were collected by the use of patient and operative records. Radiological analysis with position evaluation was performed using the post surgery radiographs by measuring Wiberg angle, inequality of leg length and femoral offset of the prostheses and compared with non-operated hip joint using the post surgery x-ray images.
Our hypothesis were that patients with single- or recurrent dislocations had shortened postoperative leg length, decreased femoral offsed and a Wiberg angle less than 25 degrees.
Panoramica dello studio
Stato
Condizioni
Tipo di studio
Iscrizione (Effettivo)
Contatti e Sedi
Luoghi di studio
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Västernorrlands län
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Sundsvall, Västernorrlands län, Svezia, 851 86
- Orthopaedic department, Sundsvall hospital
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion Criteria:
- Femoral neck fracture
- Treated with Hemiarthroplasty
- Through a posterolateral approach
Exclusion Criteria:
- Direct lateral approach
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Coorti e interventi
Gruppo / Coorte |
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Dislocation
Patients operated with hip hemiarthroplasty for a femoral neck fracture with a postoperative dislocation of the prosthesis
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Non-dislocated
Patents without dislocation of a hemiarthroplasty for a femoral neck fracture
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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Femoral offset
Lasso di tempo: 6 months up to 7 years
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The femoral offset is measured on the postoperative X-ray.
The result are compared between the groups of dislocated and non-dislocated patients.
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6 months up to 7 years
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Leg length difference
Lasso di tempo: 6 months to 7 years
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Leg length difference is measured on the postoperative X-ray.
The result are compared between the groups of dislocated and non-dislocated patients.
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6 months to 7 years
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Wiberg angle
Lasso di tempo: 6 months to 7 years
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Wiberg angle is measured on the postoperative X-ray.
The result are compared between the groups of dislocated and non-dislocated patients.
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6 months to 7 years
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Misure di risultato secondarie
Misura del risultato |
Lasso di tempo |
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1 year mortality
Lasso di tempo: one year
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one year
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Collaboratori e investigatori
Sponsor
Investigatori
- Investigatore principale: Arkan S Sayed-Noor, MD,PhD,FRCS, Orthopaedic department, Sundsvalls sjukhus, Landstinget Västernorrland
Pubblicazioni e link utili
Pubblicazioni generali
- Madanat R, Makinen TJ, Ovaska MT, Soiva M, Vahlberg T, Haapala J. Dislocation of hip hemiarthroplasty following posterolateral surgical approach: a nested case-control study. Int Orthop. 2012 May;36(5):935-40. doi: 10.1007/s00264-011-1353-0. Epub 2011 Sep 20.
- Ninh CC, Sethi A, Hatahet M, Les C, Morandi M, Vaidya R. Hip dislocation after modular unipolar hemiarthroplasty. J Arthroplasty. 2009 Aug;24(5):768-74. doi: 10.1016/j.arth.2008.02.019. Epub 2008 Jun 13.
- Enocson A, Pettersson H, Ponzer S, Tornkvist H, Dalen N, Tidermark J. Quality of life after dislocation of hip arthroplasty: a prospective cohort study on 319 patients with femoral neck fractures with a one-year follow-up. Qual Life Res. 2009 Nov;18(9):1177-84. doi: 10.1007/s11136-009-9531-x. Epub 2009 Aug 28.
- Mukka S, Lindqvist J, Peyda S, Broden C, Mahmood S, Hassany H, Sayed-Noor A. Dislocation of bipolar hip hemiarthroplasty through a postero-lateral approach for femoral neck fractures: A cohort study. Int Orthop. 2015 Jul;39(7):1277-82. doi: 10.1007/s00264-014-2642-1. Epub 2015 Jan 6.
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Studia le date principali
Inizio studio
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Stima)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Stima)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- SMASN
- SM
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Prove cliniche su Frattura del collo del femore
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Istanbul Arel UniversityBahçeşehir UniversityNon ancora reclutamentoText Neck | Nomofobia | Autosufficienza accademicaTurchia (Türkiye)