TABLE 3.
Physical characteristics of ligament and primary biomechanical outcomes reported as mean (SD) by PJK status at 1‐year postoperatively. Statistical comparisons were performed within groups, and significant p‐values (p < 0.05) are denoted by an asterisk.
| Total | PJK status | ||
|---|---|---|---|
| PJK (n = 3) | No PJK (n = 2) | ||
| Length (mm) | 5.9 (2.6) | 8.7 (5.0) | 5.6 (1.7)* |
| Thickness (mm) | 3.8 (1.5) | 3.0 (1.0) | 4.1 (1.6) |
| Width (mm) | 17.7 (4.7) | 20.3 (4.6) | 18.1 (4.2) |
| Area (mm3) | 440.8 (296.6) | 607.3 (437.4) | 438.6 (252.9) |
| Tensile stress (Mpa) | 3.3 (1.5) | 3.8 (1.3) | 3.0 (1.6) |
| Tensile strain (mm/mm) | 1.9 (1.2) | 2.8 (2.6) | 1.7 (1.0) |
| Elastic modulus (Mpa) | 7.1 (5.1) | 16.2 (9.7) | 6.5 (3.6)* |
| Peak force (N) | 207.9 (100.6) | 238.4 (158.5) | 201.9 (94.0) |
Abbreviation: PJK, proximal junctional kyphosis.