Integrity of the hip capsule measured with magnetic resonance imaging after capsular repair or unrepaired capsulotomy in hip arthroscopy

Table 1 Patient demographics

	Repaired (n = 13)	Unrepaired (n = 16)	P value
Sex			0.36
Male	4 (30.8)	2 (12.5)
Female	9 (69.2)	14 (87.5)
BMI	23.8 ± 3.9	23.1 ± 2.3	0.67
Age (yr)	31.4 ± 9.1	33.3 ± 6.1	0.49
Follow-up (mo)	15.8 ± 6.5	12.6 ± 6.7	0.72
Impingement type
CAM	5 (38.5)	3 (18.8)	0.62
Pincer	5 (38.5)	9 (56.3)	0.34
Labral repair	5 (38.5)	7 (43.8)	0.22
CE angle at time of MRI (degrees)	38.2 ± 7.7	34.0 ± 9.8	0.48

Data are presented as n (%) or mean ± SD. BMI: Body mass index; CE: Center-edge; MRI: magnetic resonance imaging.

Table 2 Hip and Groin Outcome Score functional outcome score at baseline and after 12 mo follow-up

	Capsular intact (n = 20)	Capsular defect (n = 9)	P value
Baseline
HAGOS, median (IQR)
Symptoms	44.6 (35.7-58.9)	35.7 (28.6-37.5)	0.08
Pain	43.8 (32.5-54.4)	35.0 (31.3-48.8)	0.39
ADL	47.5 (26.3-65.0)	40.0 (40.0-67.5)	0.84
Sport	32.8 (19.5-43.0)	25.0 (19.5-37.5)	0.71
QoL	25.0 (15.0-35.0)	25.0 (21.3-38.8)	0.64
12 mo FU
HAGOS, median (IQR)
Symptoms	51.8 (32.1-74.1)	39.3 (35.7-64.3)	0.82
Pain	70.0 (48.8-86.3)	60.0 (40.0-92.5)	0.87
ADL	67.5 (40.0-90.0)	60.0 (50.0-95.0)	0.62
Sport	53.6 (25.8-80.5)	53.1 (35.7-81.3)	0.87
QoL	40.0 (26.3-53.8)	60.0 (40.0-60.0)	0.28

HAGOS: Hip and Groin Outcome Score; IQR: Interquartile Range; FU: Follow-up; ADL: Activity of daily living; QoL: Quality of life.

Table 3 Association between clinical characteristics and presence of a capsular defect

	OR (95%CI)	P value
CE angle at time of MRI	1.12 (1.00-1.26)	0.06
CAM	0.67 (0.11-4.20)	0.67
Pincer	1.53 (0.31-7.44)	0.60
Labral repair	0.10 (0.01-0.98)	0.05

CE: Center-edge; MRI: magnetic resonance imaging.