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Original Article • Rev. bras. ortop. 55 (1) • Jan-Feb 2020 • https://doi.org/10.1055/s-0039-1697971 copy

Medium-term Results Evaluation between Gender-Specific x Conventional Total Knee Arthroplasty Prostheses^* * Study developed at Knee Group of the Orthopedics and Traumatology Discipline of the Hospital Estadual Mário Covas, Faculty of Medicine of ABC (FMABC), Santo André, SP, Brazil.

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Objective

To compare the postoperative functional result of total knee arthroplasty (TKA) with gender-specific prosthesis versus TKA with conventional prosthesis in a 5-year period.

Methods

Retrospective study with functional evaluation of 30 patients (15 patients from each group) using scores (Knee Injury and Osteoarthritis Outcome Score [KOOS], Western Ontario and McMaster Universities arthritis index [WOMAC], and The Knee Society Clinical Rating System [KSS]) and range of motion (ROM) as methods of assessment.

Results

The differences found between the score values and ROM were not statistically significant.

Conclusion

The gender-specific prosthesis presents functional results equal to those of conventional prosthesis after 5 years postoperatively.

Keywords
knee arthroplasty; female; outcome assessment

EXACTECH
Ptts	AGE	BMI	KSS	WOMAC	KOOS
1	73	29.9	74	93.9	91.1
2	71	33.5	70	93.2	88.7
3	39	24.4	75	93.9	91.1
4	68	31.1	74	93.2	88.7
5	74	38	52	92.4	87.5
6	69	37.89	77	81.8	78.5
7	79	25.3	77	86.4	83.9
8	75	32.6	72	87.9	85.7
9	73	33.7	77	84.1	81.5
10	80	36.97	62	81.9	78.6
11	80	34.6	64	83.3	80.4
12	73	28.7	74	88.6	85.1
13	80	25	75	80.3	76.2
14	86	33.3	75	90.9	85.7
15	78	35	79	88.6	85.1
MEAN	73.2	31.997 33333	71.8	88.026 66667	84.52

GENDER
Ptts	AGE	BMI	KSS	WOMAC	KOOS
1	83	32.6	70	83.3	81.5
2	79	30.4	74	93.2	78.6
3	78	30	75	87.9	85.7
4	73	34.13	77	81.8	80.4
5	64	34.8	74	92.4	88.7
6	69	29	74	84.1	81.5
7	74	39.1	72	92.4	85.1
8	81	33.6	79	93.2	91.1
9	68	34	75	93.9	91.1
10	75	33.2	72	93.2	87.5
11	77	28.6	72	88.6	85.7
12	71	31.2	64	83.3	81.5
13	74	29.5	60	86.4	83.6
14	76	33.3	72	93.2	88.7
15	DEATH (in 04/04/2014) cause: cerebrovascular accident (CVA)
MEAN	74.428 57143	32.387 85714	72.142 8571	89.064 28571	85.05

Variable	Group	n	Mean	Standard deviation	Min.	Max.	Percentile 25	Percentile 50 (median)	Percentile 75	P -value
AGE	Exactech	15	73.20	10.63	39.00	86.00	71.00	74.00	80.00	0.948
	Gender	14	74.43	5.21	64.00	83.00	70.50	74.50	78.25	0.948
	Total	29	73.79	8.34	39.00	86.00	71.00	74.00	79.00
BMI	Exactech	15	32.00	4.52	24.40	38.00	28.70	33.30	35.00	0.930
	Gender	14	32.39	2.84	28.60	39.10	29.88	32.90	34.03	0.930
	Total	29	32.19	3.74	24.40	39.10	29.70	33.20	34.37
KSS	Exactech	15	71.80	7.22	52.00	79.00	70.00	74.00	77.00	0.522
	Gender	14	72.14	4.93	60.00	79.00	71.50	73.00	75.00	0.522
	Total	29	71.97	6.12	52.00	79.00	71.00	74.00	75.00
WOMAC	Exactech	15	88.03	4.83	80.30	93.90	83.30	88.60	93.20	0.629
	Gender	14	89.06	4.53	81.80	93.90	83.90	90.50	93.20	0.629
	Total	29	88.53	4.63	80.30	93.90	83.70	88.60	93.20
KOOS	Exactech	15	84.52	4.64	76.20	91.10	80.40	85.10	88.70	0.759
	Gender	14	85.05	4.02	78.60	91.10	81.50	85.40	88.70	0.759
	Total	29	84.78	4.28	76.20	91.10	81.50	85.10	88.70
ROM (degrees)	Exactech	15	103.33	9.00	90.00	120.00	100.00	100.00	110.00	0.982
	Gender	14	103.57	8.42	90.00	120.00	100.00	100.00	110.00	0.982
	Total	29	103.45	8.57	90.00	120.00	100.00	100.00	110.00

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