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Fig. 1

A 46-year-old male patient with a Vancouver type B1 periprosthetic fracture treated with open reduction and internal fixation dynamic compression plate and screws. (A) Preoperative radiograph. (B) Immediate postoperative radiograph. (C) Postoperative 3-year plain radiograph.

Fig. 2

A 72-year-old male patient with a Vancouver type C periprosthetic fracture treated with open reduction and internal fixation locking compression plate and screws. (A) Preoperative radiograph. (B) Immediate postoperative radiograph. (C) Postoperative 1-year plain radiograph.

Table 1

Demographic Data of the Two Groups

Variable	DCP (n=12)	LCP (n=8)
Sex (male/female)	8/4	3/5
Age (yr)	59.3 (43-80)	76.1 (70-85)
Vancouver classification
B1	4	1
C	8	7
Follow-up duration (mo)	43.2 (13-102)	30.2 (12-71)
Time interval from primary THA (mo)	96.8 (11-240)	66.4 (2-300)

Values are presented as number only or median (range). DCP: Dynamic compression plate, LCP: Locking compression plate, THA: Total hip arthroplasty.

Table 2

Clinical Outcomes of the Two Groups

Variable	DCP		LCP
	Preoperative	Postoperative	Preoperative	Postoperative
HHS (0-100), median (range)	94.3 (86-100)	90.8 (79-96)	94.6 (82-100)	90.5 (64-96)
Pain (0-44), mean	41.7	39.8	40.8	37.2
Function (0-47), mean	44.6	42	45.8	44.3
Absenece of deformity (0-4), mean	4	4	4	4
ROM (0-5), mean	5	5	5	5
Walking ability, n
Independent walking, n	12	10	8	8
Crutch ambulation, n	0	2	0	0
Wheelchair ambulation, n	0	0	0	0
Knee ROM (°), median (range)		103.3 (105-140)		118.4 (110-140)

DCP: Dynamic compression plate, LCP: Locking compression plate, HHS: Harris hip score, ROM: Range of motion.

Table 3

Radiographical Findings of the Two Groups

Union of fracture site	DCP	LCP
Union	10	7
Delayed-union	2	1
Union period (mo)	5.5 (3-6)	5 (3-6)
Other complication
Infection	2	0
Metal breakage	1	1
Total	3	1

Values are presented as number only or median (range). DCP: Dynamic compression plate, LCP: Locking compression plate.

Figure & Data

REFERENCES

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