Iphone app use to Cobb angle in adolescent idiopathic scoliosis: Does this apply?

Mazzuia, Antenor Rafael de Oliveira; Machado, Diógenes Rodrigues; Fukumothi, Denis Kiyoshi; Nunes, Luccas Franco Bettencourt; Tucci Neto, Carlos; Jorge, Henrique Menucci de Haidar; Ortiz, Rafael Tormin; Mattos, Carlos Augusto de

doi:10.1590/S1808-185120151402145324

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Original Articles • Coluna/Columna 14 (2) • June 2015 • https://doi.org/10.1590/S1808-185120151402145324 copy

Iphone app use to Cobb angle in adolescent idiopathic scoliosis: Does this apply?

Uso de aplicativo de iphone para ângulo de Cobb na escoliose idiopática do adolescente: É aplicável?

Uso de aplicaciones móviles para Iphone para el ángulo de Cobb en la escoliosis idiopática del adolescente: ¿es aplicable?

Authorship SCIMAGO INSTITUTIONS RANKINGS

OBJECTIVE:

To validate a new method of measuring the Cobb angle for scoliosis from the mobile app CobbMeter to facilitate the evaluation and measurement in clinical practice.

METHODS:

Five observers with minimum experience of two years in the field performed radiographic measurements of Cobb angle in 24 radiographs of patients with adolescent idiopathic scoliosis through the CobbMeter. Observers performed serial measures on the images with the application, which were repeated after one month. The most experienced appraiser of the group, after measurements were made through the application, determined the Cobb angle in each radiography by the traditional method.

RESULTS:

The mean standard deviation by comparing the angles electronically and manually measured had no clinical significance. Although 40% of electronic measurements are outside the confidence interval when compared to manual measurements, this difference was insignificant in clinical practice.

CONCLUSIONS:

The CobbMeter is another alternative for measuring Cobb angle in scoliosis.

Scoliosis/diagnosis; Spine/abnormalities; Software validation; Mobile applications

Observer	1		2		3		4		5
Measurement	A	B	A	B	A	B	A	B	A	B
Patient 1	82	84	84	85	83	88	89	91	86	85
Patient 2	34	35	35	38	32	33	31	36	34	31
Patient 3	43	45	45	43	47	48	48	48	41	41
Patient 4	76	76	76	78	83	79	82	83	78	78
Patient 5	80	79	79	85	83	80	87	81	83	85
Patient 6	58	55	55	55	56	57	55	59	54	57
Patient 7	49	48	48	50	48	46	48	51	48	47
Patient 8	50	48	48	50	45	46	45	48	47	47
Patient 9	68	71	69	70	71	71	70	68	70	67
Patient 10	49	51	47	50	49	49	55	49	49	51
Patient 11	52	51	56	57	52	56	54	52	54	58
Patient 12	74	75	75	73	76	74	72	76	71	73
Patient 13	16	17	15	22	18	14	17	14	15	20
Patient 14	18	15	14	13	16	14	14	16	15	15
Patient 15	51	53	56	49	53	52	54	53	53	51
Patient 16	54	56	55	56	57	57	57	60	59	54
Patient 17	44	45	45	50	43	46	46	47	46	45
Patient 18	102	99	98	94	98	102	99	99	99	98
Patient 19	94	93	89	90	91	91	91	90	93	88
Patient 20	50	49	48	47	49	52	52	48	52	50
Patient 21	43	43	40	40	41	40	41	43	40	42
Patient 22	75	75	73	74	74	75	75	73	75	76
Patient 23	36	36	31	34	33	38	33	32	30	30
Patient 24	45	45	45	49	43	43	40	38	43	43
Average	55.96	56.00	55.25	56.33	55.88	56.29	56.46	56.46	55.63	55.50
SD	21.66	21.56	21.65	20.99	22.09	22.49	22.75	22.50	22.47	21.87

	1A	1B	2A	2B	3A	3B	4A	4B	5A	5B	M
Patient 1	82	84	84	85	83	88	89	91	86	85	94
Patient 2	34	35	35	38	32	33	31	36	34	31	33
Patient 3	43	45	45	43	47	48	48	48	41	41	42
Patient 4	76	76	76	78	83	79	82	83	78	78	82
Patient 5	80	79	79	85	83	80	87	81	83	85	88
Patient 6	58	55	55	55	56	57	55	59	54	57	55
Patient 7	49	48	48	50	48	46	48	51	48	47	50
Patient 8	50	48	48	50	45	46	45	48	47	47	49
Patient 9	68	71	69	70	71	71	70	68	70	67	73
Patient 10	49	51	47	50	49	49	55	49	49	51	50
Patient 11	52	51	56	57	52	56	54	52	54	58	56
Patient 12	74	75	75	73	76	74	72	76	71	73	75
Patient 13	16	17	15	22	18	14	17	14	15	20	18
Patient 14	18	15	14	13	16	14	14	16	15	15	14
Patient 15	51	53	56	49	53	52	54	53	53	51	52
Patient 16	54	56	55	56	57	57	57	60	59	54	58
Patient 17	44	45	45	50	43	46	46	47	46	45	50
Patient 18	102	99	98	94	98	102	99	99	99	98	96
Patient 19	94	93	89	90	91	91	91	90	93	88	92
Patient 20	50	49	48	47	49	52	52	48	52	50	50
Patient 21	43	43	40	40	41	40	41	43	40	42	44
Patient 22	75	75	73	74	74	75	75	73	75	76	76
Patient 23	36	36	31	34	33	38	33	32	30	30	32
Patient 24	45	45	45	49	43	43	40	38	43	43	46
Average	55.96	56.00	55.25	56.33	55.88	56.29	56.46	56.46	55.63	55.50	57.29
SD	21.66	21.56	21.65	20.99	22.09	22.49	22.75	22.50	22.47	21.87	22.86

Measurement	p-value	Significant (95% confidence)
1 (A and B)	0.907	No
2 (A and B)	0.098	No
3 (A and B)	0.441	No
4 (A and B)	1.000	No
5 (A and B)	0.811	No

Measurement	p-value	Significant (95% confidence)
1A-M	0.126	No
2A-M	0.007	Yes
3A-M	0.047	Yes
4A-M	0.179	No
5A-M	0.004	Yes
1B-M	0.086	No
2B-M	0.129	No
3B-M	0.182	No
4B-M	0.248	No
5B-M	0.005	Yes

	Cobb Manual	Average Cobb APP	Standard deviation Cobb
Patient 1	94	85.7	2.83
Patient 2	33	33.9	2.37
Patient 3	42	44.9	2.81
Patient 4	82	78.9	2.81
Patient 5	88	82.2	2.82
Patient 6	55	56.1	1.60
Patient 7	50	48.3	1.42
Patient 8	49	47.4	1.78
Patient 9	73	69.5	1.43
Patient 10	50	49.9	2.13
Patient 11	56	54.2	2.44
Patient 12	75	73.9	1.66
Patient 13	18	16.8	2.62
Patient 14	14	15.0	1.41
Patient 15	52	52.5	1.90
Patient 16	58	56.5	1.96
Patient 17	50	45.7	1.89
Patient 18	96	98.8	2.25
Patient 19	92	91.0	1.89
Patient 20	50	49.7	1.83
Patient 21	44	41.3	1.34
Patient 22	76	74.5	0.97
Patient 23	32	33.3	2.71
Patient 24	46	43.4	2.99
		Average SD Cobb:	2.08

Sociedade Brasileira de Coluna Al. Lorena, 1304 cj. 1406/1407, 01424-001 São Paulo, SP, Brasil, Tel.: (55 11) 3088-6616 - São Paulo - SP - Brazil
E-mail: coluna.columna@uol.com.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] Correspondence: Serviço de Ortopedia e Traumatologia do Hospital e Maternidade Celso Pierro (PUC-Campinas) - Av. John Boyd Dunlop, s/n - Jd. Ipaussurama, Campinas, SP, Brazil. 13012-970. rafaelmazzuia@gmail.com