Charnley low-friction arthroplasty of the hip. Five to 25 years survivorship in a general hospital.
BACKGROUND
Some studies have raised the question about whether the good results obtained with the Charnley prosthesis could be replicated at general hospitals when it comes to the frequency of early complications and failure rates, both of which would be higher than those published by centres devoted to hip arthroplasties.


METHODS
We reviewed the results of 404 Low Friction Arthroplasties of the hip implanted between 1976 and 1993 in a general hospital by general orthopaedic surgeons. For the survival analysis, the end-point chosen would be the chirurgical revision of any of the prosthetic components for whatever reason.


RESULTS
The complications were 16 dislocations (4%), 14 deep infections (3.5%), 2 neurological injuries (0,5%) and 5 clinical deep venous thromboses (1.2%) (2 pulmonary embolisms). The survival rate at 25 years, both for stem and cup, was 83%. Survival was higher in those arthroplasties implanted in patients older than 60 years, with statistical significance.


CONCLUSIONS
Low Friction Arthroplasty undertaken at general hospitals by general orthopaedic surgeons feature similar outcomes to those found in centres devoted to hip surgery.
Hernández-Vaquero
Daniel
D
Department of Orthopaedic Surgery, Hospital St Agustin, Aviles, Spain. dhernandezv@meditex.es.
Suárez-Vazquez
Abelardo
A
Fernandez-Lombardia
Jesus
J
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000401:mortality* / Q000639:trends*; D005260:Female; D005500:Follow-Up Studies; D017276:Friction; D006769:Hospitals, General / Q000639:trends*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology; D011474:Prosthesis Design / Q000295:instrumentation / Q000401:mortality* / Q000639:trends*; D011475:Prosthesis Failure; D015996:Survival Rate / Q000639:trends; D016896:Treatment Outcome