Table 8.
Relationship Between the Age of Athletes and Prevalence of FAI/AA a
| Author: Sport | No. | Sex, % | Definition of Cam Deformity | Prevalence of FAI, % | Statistically Significant (P < .05) |
|---|---|---|---|---|---|
| Agricola (2014) 2 : soccer b | 63 | 100M | AA >60° | Yes for AA (P = .018), no for prevalence of FAI (P = .51). | |
| 12-13 y | 36.5 | ||||
| 14-15 y at follow-up | 38.9 | ||||
| Carton (2019) 10 : Gaelic football and hurling c | 700 | 93.9M, 6.1F | AA >55° (Dunn view) or AA >65° (AP view) | Yes, except in post hoc analysis in the older 2 groups. P = .002 (at the P < .01 level for all 3 age groups). Post hoc analysis: mean AA for <25 y was significantly different vs 25-34 y and ≥35 y. No difference: 25-34 y vs ≥35 y. | |
| Falotico (2019) 19 : soccer | AA >82° | ||||
| Started playing competitive soccer (≥4/wk) at age <12 y | 37 | 100M | Yes, P < .001, age when athlete started playing competitive soccer is inversely correlated with AA | ||
| Started playing competitive soccer (≥4/wk) at age >12 y | 23 | 100M | |||
| Harris (2016) 25 : ballet d | 47 | 45M, 55F | Undefined | Yes, P = .030 for increasing age and AA, r = 0.311 | |
| Lee (2016) 37 : variety e | 338 | 68M, 32F | AA >50° | 54.5 (teenagers), 61.8 (20s) | NA |
| Lerebours (2016) 38 : ice hockey | 130 | Assumed 100M | AA ≥55° | No for age and prevalence of an elevated AA | |
| Philippon (2013) 46 : ice hockey f | 61 | 100M | AA ≥55° | Yes, P < .001 for age and AA | |
| Philippon (2013) 46 : skiing g | 27 | 100M | AA ≥55° | No, P = .254 for age and AA | |
| Polat (2019) 48 : soccer | 214 | 100M | AA >55° | 0 (10-12 y), 19.1 (13-15 y), 60 (16-17 y) |
Yes, P < .05 for age and prevalence of FAI |
| Tak (2015) 57 : soccer | 63 | Assumed 100M | AA >60° | No, P = .1 for start age and AA | |
| Started playing high-frequency soccer at age <12 y | 51 | ||||
| Started playing high-frequency soccer at age ≥12 y | 17 |
a
Percentage of FAI on frog-leg lateral was used. AA, alpha angle; AP, anterior-posterior; F, female; FAI, femoroacetabular impingement; M, male; NA, no statistical analysis.
b
Mean AA: 12-13 years old, 59.4°; 14-15 years old, 61.3°.
c
Age groups: <25, 25-34, and ≥35 years.
d
Younger and older dancers (18-39 years; mean ± SD, 23.4 ± 5.4 years). No specific age range per group was given; however, correlation (r = 0.311) was found between increasing age and AA.
e
Soccer, baseball, and mixed martial arts (eg, taekwondo and judo).
f
Age groups: 10-12 years (peewee), 13-15 years (bantam), and 16-19 years (midget).
g
Age groups: 10-12, 15, and 16-18 years.