Table 2 Lung, chest wall and diaphragmatic parameters, spinal curvatures in 16 subjects before and six months after corrective posterior spinal fusion. Figures are expressed as median (interquartile range)
Before surgery | After surgery | P value (* significant at 0.05 level) | |
|---|---|---|---|
Inspiratory volume (cc) | |||
Right lung | 1719 (1232, 1858) | 1764 (1362, 1938) | 0.57 |
Left lung | 1392 (1113, 1607) | 1381 (1152, 1642) | 0.35 |
Total | 3127(2364, 3464) | 3152 (2491, 3529) | 0.50 |
Expiratory volume (cc) | |||
Right lung | 662 (579, 817) | 716 (586, 814) | 0.61 |
Left lung | 598 (501, 700) | 601 (464, 707) | 0.96 |
Total | 1269 (1083, 1498) | 1361 (1038, 1477) | 0.64 |
Change in lung volume (cc) | |||
Right lung | 996 (645, 1126) | 969 (698, 1167) | 0.68 |
Left lung | 762 (535, 962) | 736 (630, 1018) | 0.22 |
Total | 1770 (1206, 2089) | 1730 (1362, 2203) | 0.30 |
Right lung AP diameter at carina (mm) | |||
Inspiratory | 117 (100, 123) | 118 (107, 130) | 0.07 |
Expiratory | 84 (75, 92) | 88 (82, 96) | 0.06 |
Change | 29 (21, 42) | 29 (21, 42) | 0.98 |
Left lung AP diameter at carina (mm) | |||
Inspiratory | 122 (106, 133) | 119 (108, 129) | 0.18 |
Expiratory | 89 (80,99) | 93 (87, 101) | 0.41 |
Change | 29 (16, 46) | 27 (18,33) | 0.14 |
Right lung AP diameter at apex (mm) | |||
Inspiratory | 135 (123, 151) | 137 (116, 155) | 0.50 |
Expiratory | 1114 (99, 126) | 114 (100, 133) | 0.88 |
Change | 21 (15,31) | 20 (13, 25) | 0.20 |
Left lung AP diameter at apex (mm) | |||
Inspiratory | 126 (118, 145) | 126 (121, 138) | 0.92 |
Expiratory | 104 (94, 114) | 104 (97, 111) | 0.72 |
Change | 28 (17, 37) | 23 (12, 33) | 0.30 |
Right lung TS diameter at carina (mm) | |||
Inspiratory | 97 (80, 116) | 111 (106, 116) | 0.013* |
Expiratory | 85 (75, 93) | 87 (75, 96) | 0.30 |
Change | 15 (3, 27) | 28 (17, 33) | 0.006* |
Left lung TS diameter at carina (mm) | |||
Inspiratory | 92 (79, 103) | 104 (99, 110) | 0.002* |
Expiratory | 79 (59, 84) | 86 (76, 93) | 0.044* |
Change | 14 (11, 23) | 20 (13, 28) | 0.056 |
Right lung TS diameter at apex (mm) | |||
Inspiratory | 106 (85, 126) | 114 (105, 120) | 0.039* |
Expiratory | 87 (71, 92) | 91 (84, 100) | 0.034* |
Change | 16 (10, 31) | 24 (13, 32) | 0.796 |
Left lung TS diameter at apex (mm) | |||
Inspiratory | 112 (93, 117) | 113 (104, 122) | 0.088 |
Expiratory | 98 (68, 113) | 100 (83, 112) | 0.163 |
Change | 9 (6, 13) | 12 (7, 17) | 0.301 |
Right Diaphragmatic height (mm) | |||
Inspiratory | 185 (172, 202) | 201 (182, 223) | <0.01* |
Expiratory | 136 (129, 150) | 146 (135, 156) | 0.196 |
Change | 49 (25, 65) | 53 (44, 66) | 0.039* |
Left Diaphragmatic height (mm) | |||
Inspiratory | 185 (172, 206) | 198 (186, 215) | 0.01* |
Expiratory | 142 (129, 159) | 148 (136, 161) | 0.234 |
Change | 44 (33, 57) | 53 (44, 66) | 0.039* |
Breathing effort | 4 (1,4) | 1.75 (1, 3) | 0.012* |
Coronal Cobb angle (MR) | 59 (53, 64) | 24 (21, 28) | <0.01* |
Axial angle (MR) | 9.9 (4.7, 13.0) | 9.6 (4.0, 14.7) | 0.215 |
Sagittal angle (MR) | 19.1 (13.1, 28.8) | 23.1 (17.2, 31.2) | 0.056 |