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. 2013 Apr-Jun;11(2):197-202.
doi: 10.1590/s1679-45082013000200011.

Epidemiology of total hip and knee replacement: a cross-sectional study

[Article in English, Portuguese]
Mario Lenza, Silvia de Barros Ferraz, Dan Carai Maia Viola, Reynaldo Jesus Garcia Filho, Miguel Cendoroglo Neto, Mario Ferretti

Epidemiology of total hip and knee replacement: a cross-sectional study

[Article in English, Portuguese]
Mario Lenza et al. Einstein (Sao Paulo). 2013 Apr-Jun.

Abstract
in English, Portuguese

Objective: To describe the epidemiologic characteristics and adverse events of patients submitted to total hip and total knee replacement.

Methods: A cross-sectional study retrospectively assessing medical chart data of all total hip and total knee replacements performed at a private hospital, between January 2007 and December 2010 Patients submitted to total hip and total knee replacement, with consent of surgeons were included. Incomplete records and/or missing data of the hospital database were excluded. The categorical variables analyzed were age, gender, type of arthroplasty (primary or secondary), type of procedure, duration of surgery, use of drains, risk of infection, compliance to protocol for prevention of deep venous thrombosis and embolism pulmonary, and compliance to the protocol for prevention of infection. The outcomes assessed were adverse events after surgery.

Results: A total of 510 patients were included; in that, 166 admissions for knee replacements (92 male) and 344 admissions for hip replacements (176 female). The mean age of patients was 71 years (range 31-99 years). Adverse events were reported in 76 patients (14.9%); there was no correlation between assessed variables and number of complications.

Conclusion: The results showed no individual factors favoring complications in patients submitted to total hip and total knee replacement; hence, surgeons should consider prophylaxis to avoid complications.

Objetivo:: Descrever as características epidemiológicas e os eventos adversos dos pacientes submetidos aos procedimentos de artroplastia de quadril e joelho.

Métodos:: Estudo transversal, com avaliação retrospectiva de prontuários médicos de todas artroplastias de quadril e de joelho realizadas entre janeiro de 2007 e dezembro de 2010, em hospital privado. Foram incluídos pacientes adultos submetidos à artroplastia total do quadril ou do joelho, com anuência dos cirurgiões. Foram excluídos os pacientes com prontuários incompletos ou perdidos na base de dados do hospital. As variáveis categóricas analisadas foram: idade, gênero, tipo de artroplastia (primária ou secundária), tipo de procedimento, tempo de cirurgia, uso de drenos, risco de infecção, adesão ao protocolo para prevenção de trombose venosa profunda e embolia pulmonar, e adesão ao protocolo para prevenção de infecção. Os desfechos avaliados dos pacientes foram eventos adversos ocorridos após a cirurgia.

Resultados:: Foram incluídos 510 pacientes, sendo 166 hospitalizações para artroplastia do joelho (92 do gênero masculino) e 344 hospitalizações para artroplastia do quadril (176 do gênero feminino). A média da idade dos pacientes foi 71 anos (variação 31 a 99 anos). Os eventos adversos ocorreram em 76 pacientes (14,9%); não foi encontrada correlação entre as variáveis avaliadas e o número de complicações.

Conclusão:: Os dados não demonstraram fatores individuais que favorecessem complicações de pacientes submetidos à artroplastia do quadril e joelho; portanto, os cirurgiões têm que considerar administrações profiláticas para evitar complicações.

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Conflict of interest statement

Conflict of interest: none.

Figures

Figure 1
Figure 1. Age (stratified by 10-year age groups, beginning at 35 and ending at >94 years) – 2007 to 2010
See this image and copyright information in PMC

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