Table 5.
Frequency and Incidences per Squad-Season of Lower Limb Apophyseal Injuries by Location and Diagnosis According to Skeletal Maturity Status
| Late | Normal | Early | Mature | Overall | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Diagnosis | Total, | Time-Loss, | Total, | Time-Loss, | Total, | Time-Loss, | Total, | Time-Loss, | Total, | Time-Los s, |
| n (%)a | n (%)[Incidenceb] | n (%)a | n (%)[Incidenceb] | n (%)a | n (%)[Incidenceb] | n (%)a | n (%)[Incidenceb] | n (%)a | n (%) | |
| Hip/Pelvis | ||||||||||
| AIIS osteochondrosis | 1 (16.7) | 1 (20.0) [2.5] | 12 (15.4) | 8 (12.7) [1.3] | 17 (21.8) | 13 (22.4) [1.7m] | 3 (12.0) | 1 (7.1) [0.3e] | 33 (17.6) | 23 (16.4) |
| Pubis osteochondrosis | — | — | 7 (9.0) | 5 (7.9) [0.8] | 12 (15.4) | 11 (19.0) [1.4] | 4 (16.0) | 3 (21.4) [0.8] | 23 (12.3) | 19 (13.6) |
| Lesser trochanter osteochondrosis | — | — | 4 (5.1) | 4 (6.3) [0.6] | 10 (12.8) | 10 (17.2) [1.3] | 2 (8.0) | 2 (14.3) [0.5] | 16 (8.6) | 16 (11.4) |
| ASIS osteochondrosis | 1 (16.7) | 1 (20.0) [2.5] | 4 (5.1) | 3 (4.8) [0.5] | 5 (6.4) | 4 (6.9) [0.5] | 2 (8.0) | 2 (14.3) [0.5] | 12 (6.4) | 10 (7.1) |
| AIIS avulsion | — | — | 7 (9.0) | 7 (11.1) [1.1e] | 1 (1.3) | 1 (1.7) [0.1n] | 1 (4.0) | 1 (7.1) [0.3] | 9 (4.8) | 9 (6.4) |
| Ischium osteochondrosis | — | — | 2 (2.6) | 2 (3.2) [0.3] | 2 (2.6) | — | 2 (8.0) | 2 (14.3) [0.5e] | 6 (3.2) | 4 (2.9) |
| Iliac crest osteochondrosis | — | — | — | — | 4 (5.1) | 2 (3.4) [0.3] | — | — | 4 (2.1) | 2 (1.4) |
| ASIS avulsion | — | — | 1 (1.3) | 1 (1.6) [0.2] | — | — | 1 (4.0) | 1 (7.1) [0.3] | 2 (1.1) | 2 (1.4) |
| Iliac crest avulsion | — | — | — | — | 1 (1.3) | 1 (1.7) [0.1] | — | — | 1 (0.5) | 1 (0.7) |
| Ischium avulsion | — | — | — | — | 1 (1.3) | 1 (1.7) [0.1] | — | — | 1 (0.5) | 1 (0.7) |
| Total | 2 (33.3) | 2 (40.0) [5.0] | 37 (47.4) | 30 (47.6) [4.7] | 53 (67.9) | 43 (74.1) [5.6] | 15 (60.0) | 12 (85.7) [3.2] | 107 (57.2) | 87 (62.1) |
| Knee | ||||||||||
| Osgood-Schlatter | 4 (66.7) | 3 (60.0) [7.5e,M] | 27 (34.6) | 22 (34.9) [3.5e,m] | 20 (25.6) | 12 (20.7) [1.6n,l] | 10 (40.0) | 2 (14.3) [0.5n,L] | 61 (32.6) | 39 (27.9) |
| Sinding-Larson | — | — | 4 (5.1) | 3 (4.8) [0.5] | 1 (1.3) | — | 5 (2.7) | 3 (2.1) | ||
| Total | 4 (66.7) | 3 (60.0) [7.5e,M] | 31 (39.7) | 25 (39.7) [4.0e,M] | 21 (26.9) | 12 (20.7) [1.6n,l] | 10 (40.0) | 2 (14.3) [0.5N,L] | 66 (35.3) | 42 (30.0) |
| Foot/Ankle | ||||||||||
| Sever disease | — | — | 9 (11.5) | 7 (11.1) [1.1e,m] | 2 (2.6) | 1 (1.7) [0.1n] | — | — | 11 (5.9) | 8 (5.7) |
| Kohler disease | — | — | 1 (1.3) | 1 (1.6) [0.2] | 1 (1.3) | 1 (1.7) [0.1] | — | — | 2 (1.1) | 2 (1.4) |
| Iselin avulsion | — | — | — | — | 1 (1.3) | 1 (1.7) [0.1] | — | — | 1 (0.5) | 1 (0.7) |
| Total | — | — | 10 (12.8) | 8 (12.7) [1.3m] | 4 (5.1) | 3 (5.2) [0.4] | — | — | 14 (7.5) | 11 (7.9) |
| Overall total | 6 (100) | 5 (100) [12.5m] | 78 (100) | 63 (100) [10.0M] | 78 (100) | 58 (100) [7.5m] | 25 (100) | 14 (100) [3.7N,e,l] | 187 (100) | 140 (100) |
aIncludes all medical attention and time-loss injuries. AIIS, antero inferior iliac spine; ASIS, antero superior iliac spine; —, none.
bIncidence is expressed per squad-season and established for a squad of 25 players.
Significantly different from late maturers: LP < .001; lP < .05.
Significantly different from normal maturers: NP < .001; nP < .05.
Significantly different from early maturers: EP < .001; eP < .05.
Significantly different from mature: MP < .001; mP < .05.