|
Charousset et al. [47]: Retrospective case series
|
Radiography; 2DCT
|
31 patients
|
True AP radiography:
|
Loss of sclerotic line (ICC):
|
|
Assessment:
|
Loss of sclerotic line
|
Inter-observer 0.44-0.47
|
|
True AP view; 2DCT arthrogram; 3 observers measured twice
|
CT:
|
Intra-observer 0.66-0.93
|
|
Outcome:
|
Griffith Index (Fig. 1); best-fit circle width loss (Fig. 10)
|
Griffiths Index (ICC):
|
|
Reliability
|
Inter-observer 0.68-0.71
|
| | |
Intra-observer 0.78-0.90
|
| | |
Best-fit circle width loss (ICC):
|
| | |
Inter-observer 0.74
|
| | |
Intra-observer 0.90-0.95
|
|
Itoi et al. [18]: Cadaveric study
|
Radiography; 2DCT
|
12 cadavers
|
Radiography:
|
21 % glenoid length defect:
|
|
Assessment:
|
West Point & axillary views
|
18.6 % on West Point view 2.3 % on axillary view
|
|
45 ° angle defects created at 0, 9, 21, 34, & 46 % of glenoid length; radiography at each cut; 1 observer measured twice
|
CT:
|
50 % loss of width on CT
|
|
Outcome:
|
Width of the inferior ¼ of the glenoid measured in a single axial slice
| |
|
Correlation, reliability
| |
Correlation coefficients:
|
| | |
0.905-0.993
|
| | |
Coefficients of variance:
|
| | |
0.5-3.6 %
|
|
Jankauskas et al. [45]: Retrospective case–control study
|
Radiography; 2DCT
|
86 patients
|
Superoinferior length of bone defect
|
Detecting bone lesion:
|
|
Assessment:
| |
Sensitivity 54-65 %
|
|
True AP radiography; 2 observers on radiography; 1 observer on CT
| |
Specificity 100 %
|
|
Outcome:
| |
Inter-rater reliability: kappa = 0.88
|
|
Reliability; sensitivity; specificity
| |
Radiography
vs.
CT:
|
| | |
9 shoulders with mean 8.2 ± 3.5 mm glenoid bone loss on CT were missed on radiography
|
|
Sommaire et al. [46]: Retrospective cohort study
|
Radiography; 2DCT
|
77 patients
|
Radiography:
|
Radiographic D1/D2 ratio (p = 0.003):
|
|
Assessment:
|
Bernageau view of both shoulders to calculate D1/D2 ratio (Fig. 4)
|
4.2 % patients without recurrence
|
|
Pre-operative Bernageau radiographs & 2DCT of unilateral shoulder before arthroscopic Bankart repair; 1 observer measured once
|
CT:
| |
|
Outcome:
|
Gerber‘s X index (Fig. 7)
|
5.1 % in patients with recurrence
|
| | |
CT:
|
| | |
Recurrence Rate (p = 0.004):
|
| | |
Gerber X index < 40 % =20 %
|
|
Need for revision correlated with imaging
| |
Gerber X Index >40 % =12.7 %
|
| | |
Note: Reliability not assessed
|
|
Murachovsky et al. [43]: Prospective case–control study
|
Radiography; 3DCT
|
10 patients; 50 healthy subjects
|
Radiography:
|
Reliability:
|
|
Assessment:
|
Bernageau view (D1/D2) ratio (Fig. 4)
|
Intra-observer ICC 0.897-0.965
|
|
Bilateral radiography (all subjects) & CT (instability subjects); 1 radiologist measured CT; 3 orthopaedic surgeons measured 3 times each
|
3DCT:
|
Inter-observer ICC 0.76-0.81
|
|
Outcome:
|
Glenoid AP width measured bilaterally to calculate % bone loss
|
Difference between radiography & CT non-significant (2.28 %)
|
|
Reliability
| | |
