Ceramic-on-Ceramic Total Hip Arthroplasty for Avascular Necrosis: 13-Year Average Follow-Up of Patients Under 50 Years Old
Notice bibliographique
Résumé
Abstract The long-term survival of ceramic-on-ceramic bearings in young, active patients with osteonecrosis undergoing total hip arthroplasty (THA) is unknown. A previously published study demonstrated a high activity level in these young patients at 5-year follow-up, and this is a second follow-up report on this previously reported series. The purpose of this study is to determine whether high activity level is associated with ceramic-on-ceramic THA failure at long-term follow-up. This is a retrospective review of a single-surgeon consecutive series of index cases performed between 2003 and 2010. Inclusion criteria were ceramic-on-ceramic THA articulations in patients younger than 50 with a diagnosis of osteonecrosis. Mean follow-up was 12.5 years (range 9–17). Data were collected by survey via mail, telephone, e-mail, and social media. Preoperative and postoperative Western Ontario and McMaster University (WOMAC) Arthritis Index and University of California at Los Angeles (UCLA) activity scores were collected. Student t-tests were used as appropriate. There were 97 patients in this series. Mean age at THA was 36 (range 14–50). Since the prior report, four more patients have been confirmed deceased, and four more have been lost to follow-up. We confirmed that six patients were deceased and 42 were otherwise lost to follow-up. The response rate was 54%. The vast majority of patients were highly active at latest follow-up (73% with UCLA scores between 7 and 10). UCLA scores (1–10 scale) improved from a preoperative mean of 3.4 to postoperative 7.1 (p < 0.001). WOMAC scores (1–100 scale) increased from preoperative mean of 38.7 to postoperative 86.1 (p < 0.001). At latest follow-up, four patients had undergone revision surgery. There were no ceramic component failures. One patient underwent early revision for femoral component loosening, one was revised for chronic pain at another institution. Since the prior report there have been two additional revisions; one patient was revised for instability at 5-year postop, and one patient was revised for periprosthetic fracture at 10 years. Despite additional loss to follow-up and lack of clinical and radiographic measures, this survey study suggests that at long-term follow-up ceramic bearings accommodate high activity level with excellent component survivorship (93%) in young patients undergoing THA.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,001 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».