Table 1.

Summary of published evidence regarding the rate of patellar dislocation after sentinel subluxation or dislocation

Study authors (date)	Mean follow-up time	Age in years, range (mean)	Number of participants	Recurrence rate of patellar dislocation after sentinel subluxation or dislocation (%)
Apostolovic et al (2011)5	Randomized prospective trial with mean follow-up time of 6.1 y	12-16 (14.26)	23	7.14
Palmu et al (2008)72	Randomized prospective trial with mean follow-up time of 14 y	9-15 (13)	28	71
Lewallen et al (2013)52	Single institution retrospective review with mean follow-up time of 3.1 y	9-18 (14.9)	198	38.4 (If immature physis and trochlear dysplasia, rate 69%)
Sillanpää et al (2009)89	Randomized prospective trial with mean follow-up time of 7.0 y	19-21 (20)	21	29
Nikku et al (2005)65	Randomized prospective trial with mean follow-up time of 7.2 y	Range not reported, SD = 8 (20)	57	39
Christiansen et al (2008)26	Randomized prospective trial with mean follow-up of 2 y	13-39 (20)	35	20