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Treat, follow-up, or discharge? An aid in sonographic decisions for the borderline centered neonatal/infantile hips Cover

Treat, follow-up, or discharge? An aid in sonographic decisions for the borderline centered neonatal/infantile hips

Open Access
|Feb 2024

Figures & Tables

Fig. 1.

A. Demonstration of the lines and measurements which were evaluated. B. Schematic representation of major anatomical landmarks. FH – femoral head, L – labrum, IFL – ischiofemoral ligament, BR – bony rim; LLOI – lower limb of the os ilium
A. Demonstration of the lines and measurements which were evaluated. B. Schematic representation of major anatomical landmarks. FH – femoral head, L – labrum, IFL – ischiofemoral ligament, BR – bony rim; LLOI – lower limb of the os ilium

Fig. 2.

Measurement of the pubofemoral distance (PFD)
Measurement of the pubofemoral distance (PFD)

Fig. 3.

ROC analysis of the statistically important measurements (A, F, E) as discriminators between type I and type II hips
ROC analysis of the statistically important measurements (A, F, E) as discriminators between type I and type II hips

Fig. 4.

ROC analysis of the calculated ratios (indices) A/B, C/D, F/D, E/D as discriminators between type I and type II hips
ROC analysis of the calculated ratios (indices) A/B, C/D, F/D, E/D as discriminators between type I and type II hips

Fig. 5.

ROC analysis of (C–F)/D index and PFD as discriminators between type I and type II hips
ROC analysis of (C–F)/D index and PFD as discriminators between type I and type II hips

Intra-observer and Inter-observer reliability analysis of the absolute values and the ratios of the measurements

ICC95% CIp-value
AIntra-observer0.9830.96–0.99<0.0005
Inter-observer0.9020.78–0.95<0.0005
BIntra-observer0.9640.92–0.98<0.0005
Inter-observer0.8600.71–0.93<0.0005
CIntra-observer0.9920.98–1.00<0.0005
Inter-observer0.9140.82–0.96<0.0005
DIntra-observer0.9890.98–1.00<0.0005
Inter-observer0.9440.88–0.97<0.0005
EIntra-observer0.9920.98–1.00<0.0005
Inter-observer0.9000.79–0.95<0.0005
FIntra-observer0.9910.98–1.00<0.0005
Inter-observer0.9290.83–0.97<0.0005
F/DIntra-observer0.9880.98–1.00<0.0005
Inter-observer0.9220.82–0.97<0.0005
E/DIntra-observer0.9830.97–0.99<0.0005
Inter-observer0.8690.73–0.94<0.0005
(C–F)/DIntra-observer0.9800.96–0.99<0.0005
Inter-observer0.8010.59–0.91<0.0005

ROC analysis of the statistically important measurements, the calculated ratios and PFD, as discriminators between type I and type II hips

AUCSE95% CIp-valueCut-off pointSensitivitySpecificityPPVNPV
A*0.6620.0420.580.74<0.0057.01075%50%
F*0.7920.0330.730.86<0.0055.90575%70%55%85%
E*0.6910.0390.610.77<0.0058.4772%60%
A/B**0.6060.0440.520.690.0201.6168%48%
C/D**0.5020.0430.420.590.9650.8658%45%
F/D**0.8630.0280.810.92<0.0050.40083%71%60%88%
E/D**0.7470.0380.670.82<0.0050.55570%71%53%83%
(C–F)/D***0.7900.0330.730.86<0.0050.45082%67%54%88%
PFD***0.6580.0430.570.74<0.0052.8852%68%

Comparison of the demographic and clinical characteristics of the study groups

Variables* n%Hip typep-value
GenderMale8646.7Type I (n = 124)Type II (n = 60)
Female9853.3
Mode of deliveryVaginal birth7138.648 (38.7%)23 (38.3%)1,000
Caesarean section11361.476 (61.3%)37 (61.7%)
Positive family history for DDH**No16891.3114 (91.9%)54 (90%)0.781
Yes168.710 (8.1%)6 (10%)
Breech presentationNo17293.5113 (91.1%)59 (98.3%)0.107
Yes126.511 (8.9%)1 (1.7%)
Reduced amniotic fluid at delivery***No15785.3103 (83.1%)54 (90%)0,269
Yes2714.721 (16.9%)6 (10%)
Clinical examination at birth****Negative17896.7120 (96.8%)58 (96.7%)1,000
Positive63.34 (3.2%)2 (3.3%)
Gestational age at delivery (weeks)Mean ± SD (min–max)38.4 ± 1.5 (33–41)7.83 ± 1.937.40 ± 1.780.378a
Birth weight (g)3,129.2 ± 415.4 (1,880–4,250)3,146.94 ± 439.663,092.52 ± 360.660.406
Age at examination (weeks)7.61 ± 1.91 (5.57–14.57)7.83 ± 1.937.40 ± 1.780.148a

Multiple logistic regression analysis

OR195% CIp-value
F
  >5.911.00<0.0005
  <5.917.783.5717.00
F/D
  >0.401.00<0.0005
  <0.4010.644.8423.43
(C–F)/D
  <0.4501.00<0.0005
  >0.45010.154.5322.74

Comparison of measurements and calculated ratios between the two hip types

Variables (mm)*Hip typep-value
I (n = 124)II (n = 60)
A**7.13 ± 0.786.67 ± 0.73<0.005
B**4.36 ± 0.514.39 ± 0.450.693
C**12.69 ± 1.0312.78 ± 1.020.554
D**15.02 ± 1.0415.08 ± 1.050.714
F**6.43 ± 0.885.51 ± 0.68<0.005
E**8.70 ± 0.918.08 ± 0.78<0.005
PFD***2.60 ± 0.502.90 ± 0.47<0.005
A/B1.66 ± 0.301.54 ± 0.240.020a
C/D0.85 ± 0.050.85 ± 0.030.731
F/D0.43 ± 0.040.37 ± 0.04<0.005
E/D0.58 ± 0.050.54 ± 0.05<0.005
(C–F) / D0.42 ± 0.070.48 ± 0.04<0.005
DOI: https://doi.org/10.15557/jou.2024.0003 | Journal eISSN: 2451-070X | Journal ISSN: 2084-8404
Language: English
Submitted on: Apr 28, 2023
Accepted on: Jul 21, 2023
Published on: Feb 27, 2024
Published by: MEDICAL COMMUNICATIONS Sp. z o.o.
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Konstantinos Chlapoutakis, Maria Raissaki, Styliani Markatzinou, Nikolaos Skoulikaris, Antonios Galanos, Adam Hatzidakis, Panagiotis Prassopoulos, published by MEDICAL COMMUNICATIONS Sp. z o.o.
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.