The aim of this study was to compare the rate of mortality and
causes of death in Korean patients who undergo surgery for a fracture
of the hip, up to 11 years after the injury, with a control group
from the general population. National cohort data from Korean Health Insurance Review and
Assessment Service – National Sample Cohort were used. A ratio of
1:4 matched patients with a fracture who underwent surgery (3383,
fracture group) between 2003 and 2012, and controls (13 532) were
included. The matches were processed for age, gender, income, and
region of residence. We also undertook analyses of subgroups according
to age and gender. The mean follow-up was 4.45 years (1 to 11).Aims
Materials and Methods
The reported prevalence of an asymptomatic slip
of the contralateral hip in patients operated on for unilateral slipped
capital femoral epiphysis (SCFE) is as high as 40%. Based on a population-based
cohort of 2072 healthy adolescents (58% women) we report on radiological
and clinical findings suggestive of a possible previous SCFE. Common
threshold values for Southwick’s lateral head–shaft angle (≥ 13°)
and Murray’s tilt index (≥ 1.35) were used. New reference intervals
for these measurements at skeletal maturity are also presented. At follow-up the mean age of the patients was 18.6 years (17.2
to 20.1). All answered two questionnaires, had a clinical examination
and two hip radiographs. There was an association between a high head–shaft angle and
clinical findings associated with SCFE, such as reduced internal
rotation and increased external rotation. Also, 6.6% of the cohort
had Southwick’s lateral head–shaft angle ≥ 13°, suggestive of a
possible slip. Murray’s tilt index ≥ 1.35 was demonstrated in 13.1%
of the cohort, predominantly in men, in whom this finding was associated
with other radiological findings such as pistol-grip deformity or
focal prominence of the femoral neck, but no clinical findings suggestive
of SCFE. This study indicates that 6.6% of young adults have radiological
findings consistent with a prior SCFE, which seems to be more common
than previously reported. Cite this article:
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