Severity of heterotopic ossification in patients following surgery for hip fracture: a retrospective observational study.
BMC Musculoskelet Disord
; 20(1): 348, 2019 Jul 27.
Article
en En
| MEDLINE
| ID: mdl-31351447
ABSTRACT
BACKGROUND:
Heterotopic ossification (HO) is a relatively common complication following hip surgery treated with open reduction and internal fixation, total arthroplasty or hemiarthroplasty. Development of HO after hip surgery is an important clinical issue as it can affect functional status. We aimed to determine whether there was association between severity of heterotopic ossification about the hip and the interval between the time of hip fracture and surgery. MATERIALS ANDMETHODS:
Our retrospective study included 151 patients (age range 33-95 years) treated for hip fractures by hemiarthroplasty. Medical records were reviewed for time interval to surgery, laterality, surgical approach, and patient age. Patients who had any post-operative complications were excluded. Radiographs were semiquantitatively assessed for the degree of heterotopic ossification based on Brooker Classification (5-point scale). Statistical analysis was performed utilizing Chi-square, Kruskal-Wallis, and Score tests, and also a proportional odds model (significance level set at 0.05).RESULTS:
Thirty eight patients had no heterotopic ossification, 43 had class 1, 55 had class 2, and 15 had class 3 or greater heterotopic ossification. The majority of patients (59.6%) had surgery within 2 days of acute injury. Severe heterotopic ossification (HO 3+) was associated with the longer interval between the time of acute hip fracture and surgery (median 6 days) vs. median 2 days in all other groups (HO classes 0-2) (p = 0.0015). The odds ratio and 95% CI for one level higher HO class was 1.296 (1.152, 1.459), which meant that the odds of having HO class one level higher increased by about 29.6% for every one-day increase in the days to surgery. No significant association was found for other variables.CONCLUSION:
Class 3 or greater HO was associated with longer time interval between time of acute hip fracture and surgery compared to all other groups (HO class 0-2).Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Complicaciones Posoperatorias
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Osificación Heterotópica
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Artroplastia de Reemplazo de Cadera
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Fijación de Fractura
/
Fracturas de Cadera
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Adult
/
Aged
/
Aged80
/
Female
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Humans
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Male
/
Middle aged
Idioma:
En
Revista:
BMC Musculoskelet Disord
Asunto de la revista:
FISIOLOGIA
/
ORTOPEDIA
Año:
2019
Tipo del documento:
Article
País de afiliación:
Estados Unidos