. 2025 Sep 3;12:1584651. doi: 10.3389/fsurg.2025.1584651

Table 5.

Comparison of Hip joint function between the clamping + bone distractor group and the clamping + traction Bed group ( $\bar{x}$ ±s, points).

Group	Number of cases	Preoperative	1 month after surgery	3 months after surgery	6 months after surgery	12 months after surgery
Clamping + bone traction device	69	44.80 ± 2.98	53.29 ± 3.08^a^, ^b	60.84 ± 5.06^a^, ^b^, ^c	72.33 ± 4.21^a^, ^b^, ^c^, ^d	88.29 ± 6.78^a^, ^b^, ^c^, ^d^{, e}
Clamping + traction bed	69	45.88 ± 4.04	50.86 ± 4.18^b	56.23 ± 4.24^b^, ^c	68.52 ± 3.46^b^, ^c^, ^d	85.33 ± 5.56^b^, ^c^, ^d^{, e}
F_Inter-group P	–	49.984/<0.001
F_{Time Point} P	–	1,877.175/<0.001
F_{interaction between groups and time points} P	–	8.415/<0.001

Comparisons with the clamp + traction bed group at the same time point indicate statistically significant differences.

^{^a}

P < 0.05, vs. the same group before surgery.

^{^b}

P < 0.05, vs. the same group 1 month after surgery.

^{^c}

P < 0.05, vs. the same group 3 months after surgery.

^{^d}

P < 0.05, vs. the same group 6 months after surgery.

^{^e}

P < 0.05, vs. the same group 6 months after surgery.