Research Article

Surgical Design Optimization of Proximal Junctional Kyphosis

Table 2

Optimization performance on PJK and non-PJK group.

No.PJK after surgeryWeight (kg)Age at operation (year)Gender (male: M, female: F)Predicted results (0 = without PJK and 1 = with PJK)Pre-PJA (°)Applied post-PJA (°)Optimal post-PJA (°)

1No5615M0.42512.412.912.6
2No4217F0.2965.87.76.3
3No6413F0.3456.97.87.4
4No5220M0.1745.29.63.9
5No3713F0.2702.41.73.4
6No4516M0.33118.016.618.2
7No7120F0.556 (yes)0.94.81.2
8No4113F0.3064.63.26.0
9No4013F0.3615.17.66.1
10Yes32.516M0.50810.717.211.5
11Yes6018F0.401 (no)4.112.45.5
12Yes47.518F0.5869.49.39.5