Health economics for intra-capsular hip fractures undertaking fixation

Table 1 Fracture configuration, n (%)

	Cannulated cancellous screw fixation	2-hole sliding hip screw fixation
Fixation group	47 (56.6)	36 (43.4)
Laterality
Left	25 (53.2)	18 (50)
Right	22 (46.8)	18 (50)
Garden classification
I	24 (51.1)	13 (36.1)
II	8 (17)	11 (30.6)
III	10 (21.3)	7 (19.4)
IV	5 (10.6)	5 (13.9)
Pauwels classification
I	7 (14.9)	1 (2.8)
II	32 (68.1)	24 (66.7)
III	8 (17)	11 (30.6)

Table 2 Patient demographics, n (%)

	Cannulated cancellous screw fixation	2-hole sliding hip screw fixation
Mean age, yr (range)	66 (18-91)	71 (28-100)
Group by age
< 50	7	6
> 50	40	30
Gender
Male	16 (34)	15 (41.7)
Female	31 (66)	21 (58.3)
Number of organ co-morbidities
0	13 (27.7)	11 (30.6)
1	13 (27.7)	9 (25)
2	11 (23.4)	8 (22.2)
3	6 (12.8)	6 (16.7)
4	4 (8.5)	2 (5.6)
Mean	1.5	1.4

Table 3 Peri-operative parameters, n (%)

	Cannulated cancellous screw fixation	2-hole sliding hip screw fixation
Time to surgery, h (range)	39 (6-168)	43 (7-408)
Tip-apex, mm (range)	20 (10-45)	23 (15-35)
Hb drop pre-op to post op, g/dL (range)	1.8 (0.1-5.0)	1.4 (0.3-4.2)
Radiation time, sec (range)	53 (7-127)	47 (35-75)
Length of stay, d (range)	15 (3-69)	17 (4-62)
Weight bearing status
NWB	5 (10)	2 (6)
PWB	21 (45)	7 (19)
FWB	3 (6)	16 (44)
Unclear	18 (39)	11 (31)
Union time, mo (range)	5.1 (1-16)	5.8 (1-12)
Health resource group, £ (range)	5979 (517-11117)	6862 (639-14323)

NWB: Non weight bearing, PWB: Partial weight bearing, FWB: Full weight bearing; Hb: Haemoglobin.

Table 4 Complications, n (%)

Undesirable outcomes	Cannulated cancellous screw fixation	2-hole SHS fixation
Avascular necrosis	1 (2.1)	3 (8.3)
Significant collapse	5 (10.6)	1 (2.7)
Non-union	3 (6.4)	0 (0)
Cut-out	1 (2.1)	1 (2.7)
Reoperation	9 (19.1)	4 (11.1)

SHS: Sliding hip screw.

Table 5 EQ 5D and visual analogue score parameters, n (%)

	Cannulated cancellous screw fixation	2-hole sliding hip screw fixation
Successfully contacted patients, n (%)	25 (53.2)	22 (61.1)
Deceased	12 (25.5)	4 (11.1)
Moved abroad	2 (4.3)	1 (2.8)
Dementia	1 (2.1)	4 (11.1)
Unable to contact	7 (14.8)	5 (13.9)
Time from surgery to PROM, months (range)	42 (12-78)	46 (12-98)
Valid (n) to answer questionnaire	25/34 (74%)	22/28 (79%)
EQ 5D 3 level (range)	0.70 (0.07-1)	0.73 (0.22-1)
EQ 5D visual analogue score (range)	79 (40-100)	73 (10-100)