Heterotopic ossification after total hip arthroplasty
| Autor: | Vito Pavone, Eduardo A. Salvati, Alejandro Gonzalez Della Valle, Eric Tolo, Douglas N. Mintz, Patricio Salonia Ruzo |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Hip surgery
Reproducibility medicine.medical_specialty business.industry Ossification Radiography medicine.medical_treatment medicine.disease Arthroplasty Surgery medicine.anatomical_structure medicine Orthopedics and Sports Medicine Heterotopic ossification Femur medicine.symptom business Nuclear medicine Pelvis |
| Zdroj: | The Journal of Arthroplasty. 17:870-875 |
| ISSN: | 0883-5403 |
| DOI: | 10.1054/arth.2002.34819 |
| Popis: | We evaluated the reproducibility of the Brooker classification for heter- otopic ossification (HO) and,based on the results and weaknesses observed,pro- posed a simplified system with addition of objective criteria. Six observers classified radiographs of 169 total hip arthroplasties,using the Brooker classification and a modified system consisting of i) absence of HO or islands measuring 1 cm in length, ii) islands 1 cm or spurs leaving at least 1 cm between femur and pelvis,and iii) spurs leaving 1 cm between opposing surfaces or bony ankylosis. Reproducibility was calculated using statistics. For the Brooker classification,interobserver averaged 0.43 (range,0.74 - 0.18) (poor). Intraobserver averaged 0.74 (fair). For the modified classification,interobserver averaged 0.59 (range,0.51- 0.76) (fair). Intraobserver averaged 0.78 (good). Interobserver differences were significant (P.0085). Interobserver consistency to detect severe HO (Brooker 3 and 4,or grade C) improved from 52% to 76% with the modified system. The new classification showed adequate interobserver reproducibility,less variability,and improved con- sistency for classification of significant HO. Key words: total hip arthroplasty (THA), heterotopic ossification (HO),classification,reproducibility. Copyright 2002,Elsevier Science (USA). All rights reserved. |
| Databáze: | OpenAIRE |
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