Table 3.
Radiographic measurement outcomes.
| All patients | POST-I group | PA-F group | Intergroup analysis level of significance |
|
|---|---|---|---|---|
| (n = 36) | (n = 22) | (n = 14) | ||
| mean ± SD | mean ± SD | mean ± SD | ||
| (range) | (range) | (range) | ||
| Radiographic parameters | ||||
| RKA preop° | 11.7 ± 6.6 | 11.1 ± 6.5 | 12.6 ± 6.8 | p > .5 |
| (2–25) | (2–25) | (2.5–22.6) | ||
| RKA at follow-up° | 12.7 ± 9.2 | 14.7 ± 10.6 | 9.6 ± 5.5 | p = .07 |
| (0.8–35.8) | (2.3–35.8) | (0.8–16.1) | ||
| TLA (T10–L2) preop° | 11.2 ± 5.8 | 11.7 ± 5.8 | 10.3 ± 5.8 | p > .5 |
| (0.2–21.8) | (0.2–21.8) | (2–20.3) | ||
| TLA (T10–L2) | 14.7 ± 9.2 | 16 ± 9.5 | 12.6 ± 8.8 | p = .08 |
| at follow-up° | (1.8–37.1) | (2.2–37.1) | (1.8–27.2) | |
| Spinal and spinopelvic parameters at follow-up | ||||
| PI° | 53.1 ± 9.8 | 53.9 ± 9.5 | 51.7 ± 10.5 | p > .5 |
| (31.5–74.7) | (39.7–74.7) | (31.5–68) | ||
| PT° | 17.2 ± 81.4 | 18.2 ± 7.8 | 15.7 ± 8.7 | p > .5 |
| (2.3–32) | (6.7–32) | (2.3–29.2) | ||
| SS° | 36.6 ± 7.8 | 34.7 ± 6.1 | 39.9 ± 9.4 | p > .5 |
| (27.2–60.4) | (27.2–50.2) | (29.6–60.4) | ||
| TLSL T12–S1° | −49.7 ± 10.1 | −48.1 ± 9.6 | −52.5 ± 10.7 | p > .5 |
| (−65.1–(25.9)) | (−62.7–(−25.9)) | (−65.1–(−28.9)) | ||
| LSL L1–S1° | −50 ± 20.7 | −49.9 ± 12.3 | −50.1 ± 30.4 | p > .5 |
| (−70.5–47.2) | (−66.9–(−20.5)) | (−70.5–47.2) | ||
| LL L1–L5° | −42.5 ± 11.3 | −42.5 ± 13.4 | −42.4 ± 7.1 | p > .5 |
| (−58.3–(−11.4)) | (−58.3–(−11.4)) | (−53–(−26)) | ||
| TK T4–T12° | 36.5 ± 15.7 | 33.4 ± 13.9 | 40.7 ± 17.4 | p > .5 |
| (1.8–77.5) | (1.8–58.6) | (2–77.5) | ||
| PR-S1° | −30.3 ± 16.1 | −31.8 ± 8.1 | −27.9 ± 24.3 | p > .5 |
| (−52.1–40) | (−47.2–(−14.6)) | (−52.1–40) | ||
| PR-T10° | −59.9 ± 43.9 | −50.7 ± 53.9 | −74.4 ± 11.5 | p > .5 |
| (−93.5–77.6) | (−93.5–77.6) | (−89.9–(−45.5)) | ||
| PR-L2° | −84.2 ± 8 | −84.5 ± 7.2 | −83.6 ± 9.4 | p > .5 |
| (−97.4–(−64.1)) | (−95.2–(−66.8)) | (−97.4–(−64.1)) | ||
| SVA T4–S1 (mm) | −22.2 ± 17.7 | −21.7 ± 19.2 | −22.9 ± 15.9 | p > .5 |
| (−54.8–13.9) | (−54.8–13.9) | (−51.3–0) | ||
RKA: regional kyphosis angle; TLA (T10–L2): thoracolumbar junction angle T10–L2; PI: pelvic incidence; PT: pelvic tilt; SS: sacral slope; TLSL T12–S1: thoracolumbosacral lordosis T12–S1; LSL L1–S1: lumbosacral lordosis L1–S1; LL L1–L5: lumbar lordosis L1–L5; TK T4–T12: thoracic kyphosis T4–T12; PR-S1: pelvic radius to S1; PR-T10: total lumbopelvic lordosis to T10; PR-L2: regional lumbopelvic lordosis to L2; SVA T4–S1: sagittal vertical axis T4 to S1.