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Reliability of new radiographic measurement techniques for elbow bony impingement


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Figure 1

Radiographic measurements: (A) Anterior Impingement angle (AIa) and Posterior Impingement angle (PIa) in normal group, (B) AIa and Pia in EBI group, (C) sigmoid notch coverage angle (SNC) in normal group.
Radiographic measurements: (A) Anterior Impingement angle (AIa) and Posterior Impingement angle (PIa) in normal group, (B) AIa and Pia in EBI group, (C) sigmoid notch coverage angle (SNC) in normal group.

Figure 2

Manual flexion-extension range of motion (fROM) and radiographic measurement correlations between (A) f lexion and Anterior Impingement angle AIa, (B) extension deficit and Posterior Impingement angle (Pia).
Manual flexion-extension range of motion (fROM) and radiographic measurement correlations between (A) f lexion and Anterior Impingement angle AIa, (B) extension deficit and Posterior Impingement angle (Pia).

Inter-rate r and intra-rater reliabilitiesa

Inter-rater reliabilitya Intra-rater reliability for rater 1a Intra-rater reliability for rater 2a Intra-rater reliability for rater 3a
EBI group AIa 0.85 (0.75–0.94) 0.87 (0.75–0.94) 0.87 (0.74–0.94) 0.87 (0.75–0.95)
PIa 0.84 (0.69–0.92) 0.83 (0.66–0.91) 0.88 (0.76–0.94) 0.85 (0.75–0.93)
NORMAL AIa 0.87 (0.76–0.94) 0.90 (0.81–0.95) 0.87 (0.74–0.94) 0.87 (0.75–0.95)
group PIa 0.85 (0.75–0.93) 0.86 (0.73–0.93) 0.86 (0.73–0.93) 0.86 (0.74–0.94)

Manual and radiographic measurements

EBI groupa NORMAL groupa p
Flexion (º) 115 ± 8 139 ± 5 < 0.05
Extension deficit (º) 19 ± 12 0 ± 0 < 0.05
fROM (º) 96 ± 14 139 ± 5 < 0.05
SNC (º) 217 ± 10 170 ± 6 < 0.05
AIa (º) 44 ± 5 20 ± 4 < 0.05
Pia (º) 173 ± 10 150 ± 5 < 0.05

Inter-rater reliability between two upper-hand expert surgeons and one resident

Surgeon 1 vs. surgeon 2a Surgeon 1 vs. residenta Surgeon 2 vs. residenta
EBI group AIa 0.85 (0.71–0.93) 0.85 (0.74–0.94) 0.86 (078–0.95)
PIa 0.84 (0.69–0.92) 0.89 (0.79–0.95) 0.87 (0.74–0.94)
NORMAL AIa 0.87 (0.74–0.94) 0.90 (0.80–0.95) 0.88 (0.77–0.94)
group PIa 0.85 (0.71–0.93) 0.89 (0.77–0.94) 0.87 (0.760–0.94)
eISSN:
1581-3207
Sprache:
Englisch
Zeitrahmen der Veröffentlichung:
4 Hefte pro Jahr
Fachgebiete der Zeitschrift:
Medizin, Klinische Medizin, Allgemeinmedizin, Innere Medizin, Hämatologie, Onkologie, Radiologie