Outcomes after fixation for undisplaced femoral neck fracture compared to hemiarthroplasty for displaced femoral neck fracture among the elderly

Lin, Jeff Chien-Fu; Liang, Wen-Miin

doi:10.1186/s12891-015-0671-6

Table 4 Causes of reoperations or medical complications after surgery for hip fracture, stratified by fracture type

From: Outcomes after fixation for undisplaced femoral neck fracture compared to hemiarthroplasty for displaced femoral neck fracture among the elderly

(1) Reoperation
	1-Month		3-Month		6-Month		1-year		2-year		5-Year		10-Year
Fracture type^a	Un-dis	Dis	Un-dis	Dis	Un-dis	Dis	Un-dis	Dis	Un-dis	Dis	Un-dis	Dis	Un-dis	Dis
Operation type	Fixation	Bipolar^a	Fixation	Bipolar	Fixation	Bipolar	Fixation	Bipolar	Fixation	Bipolar	Fixation	Bipolar	Fixation	Bipolar
n^b	978	594	1466	860	1901	1021	2326	1268	2691	1650	3172	2311	3405	2615
Conversion to/revision arthroplasty	17.28%^c	15.66 %	38.20 %	19.19 %	48.97 %	24.88 %	56.32 %	32.10 %	60.42 %	37.82 %	63.71 %	42.62 %	63.41 %	44.09 %
Removal of implant	15.03 %	10.61 %	29.81 %	11.63 %	36.61 %	12.73 %	41.19 %	12.15 %	42.55 %	12.06 %	41.49 %	10.39 %	40.03 %	10.02 %
Infection	9.30 %	46.80 %	10.91 %	43.14 %	10.73 %	40.55 %	10.83 %	35.73 %	12.00 %	31.15 %	12.89 %	26.27 %	13.33 %	25.05 %
Mechanical complication^d	21.98 %	22.90 %	34.17 %	24.65 %	35.56 %	24.29 %	33.53 %	24.61 %	32.40 %	24.42 %	30.67 %	22.89 %	29.63 %	22.29 %
Dislocation	NA	23.57 %	NA	25.81 %	NA	23.11 %	NA	19.87 %	NA	16.42 %	NA	12.81 %	NA	11.66 %
Avascular necrosis	52.76 %	NA	35.20 %	NA	27.14 %	NA	22.18 %	NA	19.18 %	NA	16.27 %	NA	15.15 %	NA
Same site second hip fracture	1.33 %	3.87 %	3.07 %	5.58 %	4.10 %	6.37 %	4.43 %	7.89 %	5.20 %	8.91 %	6.46 %	10.69 %	6.93 %	11.17 %
Malunion	0.92 %	NA	0.75 %	NA	0.63 %	NA	0.77 %	NA	0.78 %	NA	0.79 %	NA	0.79 %	NA
Nonunion	3.07 %	NA	8.73 %	NA	14.68 %	NA	19.60 %	NA	19.55 %	NA	18.06 %	NA	16.98 %	NA
(2) Medical Complication
					1-Month		3-Month
Fracture type^a					Un-dis	Dis	Un-dis	Dis
Operation Type					Fixation	Bipolar	Fixation	Bipolar
n^b					1543	1726	1989	2126
Stroke					12.70%^c	11.88 %	14.43 %	12.98 %
Acute myocardial infraction					3.18 %	2.61 %	3.42 %	3.15 %
Pulmonary embolism					1.17 %	1.85 %	1.21 %	1.60 %
Deep vein thrombosis					1.04 %	1.04 %	1.31 %	1.22 %
Acute renal failure					5.12 %	6.55 %	7.04 %	8.42 %
Acute respiratory failure					17.17 %	16.74 %	21.82 %	20.93 %
pneumonia					25.15 %	25.38 %	30.87 %	32.13 %
Exacerbation of COPD					59.17 %	59.33 %	53.44 %	54.66 %

NA Not available
^aFracture type : Un-Dis = Undisplaced; Dis = Displaced femoral neck fracture; Bipolar = Hemiarthroplasty
^bn = The number of subjects who had at least one readmission or reoperation
^c% = Percentage of subjects who had a certain cause of complication among the total number of subjects who had at least one complication or reoperation. Subjects might have had more than one readmission or reoperation due to multiple causes
^dMechanical complication included loss reduction, screw back out or cut out, skin irritation, and implant failure

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ISSN: 1471-2474

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