Clinical application of arthroscopy-assisted minimally invasive therapy in Chinese elderly with type III Pilon fracture

Figures & data

Table 1 Participant characteristics in the two groups

Characteristics	Group A (n=115)	Group B (n=115)	P-value
Age (years), median (interquartile range)	65 (62–68)	65 (63–69)	0.347
Males, n (%)	81 (70.4)	76 (66.1)	0.479
Females, n (%)	34 (29.6)	39 (33.9)
Causes, n (%)			0.555
Fall accidents	34 (29.6)	41 (35.7)
Physical sports	8 (7.0)	9 (7.8)
Traffic accidents	73 (63.5)	65 (56.5)
Sides, n (%)			0.690
Left	49 (42.6)	52 (45.2)
Right	66 (57.4)	63 (54.8)
Types, n (%)			0.759
Open	27 (23.5)	29 (25.2)
Closed	88 (76.5)	86 (74.8)

Notes: Group A: external fixation combined with limited internal fixation; group B: arthroscopy-assisted minimally invasive therapy.

Figure 1 A male patient (63 years old) with type III pilon fracture.

Notes: (A) Preoperative anteroposterior X-ray; (B) Preoperative anteroposterior and lateral X-ray; (C) Postoperative anteroposterior X-ray; (D) Postoperative anteroposterior and lateral X-ray.

Table 2 Clinical value of the 2 surgeries

Characteristics	Group A (n=115)	Group B (n=115)	P-value
Reduction result, n (%)			0.040
Anatomical	56 (48.7)	75 (65.2)
Acceptable	54 (47.0)	37 (32.2)
Poor	5 (4.3)	3 (2.6)
Bone union, n (%)			0.048
Nonunion	1 (0.9)	0 (0)
Malunion	3 (2.6)	1 (0.9)
Delayed union	10 (8.7)	2 (1.7)
Normal union	101 (87.8)	112 (97.4)
Screw loosening, n (%)	4 (3.5)	3 (2.6)	0.701
Mazur system, n (%)			0.036
Excellent	61 (53.0)	80 (69.6)
Good	31 (27.0)	15 (13.0)
Fair	17 (14.8)	16 (13.9)
Poor	6 (5.2)	4 (3.5)
Patient satisfaction, n (%)	102 (88.7)	107 (93.0)	0.252
Infection prevalence, n (%)			0.620
No infection	99 (86.1)	102 (88.7)
Superficial infection	12 (10.4)	8 (7.0)
Deep infection	4 (3.5)	5 (4.3)
Traumatic arthritis, n (%)			0.044
Grade 1	42 (36.5)	58 (50.4)
Grade 2	48 (41.7)	46 (40.0)
Grade 3	19 (16.5)	8 (7.0)
Grade 4	6 (5.2)	3 (2.6)

Notes: Group A: external fixation combined with limited internal fixation; group B: arthroscopy-assisted minimally invasive therapy.