Table 4.

Analysis of MPFL outcomes between patients with allergies with and without psychiatric diagnoses

	No PRAs (n = 94)	PRAs without psychiatric disorder (n = 35)	PRAs with psychiatric disorder (n = 12)	p-Value
Age at time of surgery (years)	24 ± 9	28 ± 11	26 ± 5	0.04*
Sex
Male	31 (33%)	10 (29%)	2 (17%)	0.49
Female	63 (67%)	25 (71%)	10 (83%)
Sports participation	42 (45%)	16 (46%)	6 (50%)	1.00
Concomitant procedures
Primary TTO	43 (46%)	15 (43%)	6 (50%)	0.91
Meniscectomy	3 (3%)	2 (6%)	0 (0%)	0.75
Chondroplasty	45 (48%)	13 (37%)	4 (33%)	0.66
Loose body removal	10 (11%)	5 (14%)	0 (0%)	0.46
Subsequent surgery
Any reoperation	7 (7%)	5 (14%)	2 (17%)	0.30
Revision	2 (2%)	0 (0%)	1 (8%)	0.25
Removal of hardware	2 (2%)	1 (3%)	0 (0%)	1.00
MUA	2 (2%)	3 (9%)	0 (0%)	0.15
Secondary TTO	1 (1%)	1 (3%)	0 (0%)	0.33
TKA	0 (0%)	0 (0%)	1 (8%)	0.09
Follow-up time (months)	45 ± 27	52 ± 26	49 ± 34	0.29
Outcomes
Recurrent instability	11 (12%)	3 (9%)	3 (25%)	0.25
VAS (overall)	15 ± 21	13 ± 19	9 ± 19	0.30
VAS (sports)	28 ± 28	21 ± 25	33 ± 31	0.31
Kujala score	85 ± 16	86 ± 13	79 ± 20	0.67
MPFL-RSI score	59 ± 27	64 ± 28	52 ± 29	0.35
Satisfaction score	83 ± 27	88 ± 21	76 ± 31	0.47
Would repeat surgery	77 (82%)	32 (91%)	8 (67%)	0.13
Return to sport	20 (48%)	7 (44%)	2 (33%)	0.86
Return to sport at presymptomatic level	15 (36%)	5 (31%)	0 (0%)	0.15
Time to return to sport (months)	9 ± 5	11 ± 8	11 ± 6	0.74

Results reported as n (%) or mean ± standard deviation (SD)

BMI body mass index, TTO tibial tubercle osteotomy, MUA manipulation under anesthesia, TKA total knee arthroplasty, VAS visual analog scale, MPFL-RSI Medial Patellofemoral Ligament-Return to Sport after Injury

*Indicates statistically significant values