Table 1 Information and parameters about the cohort
From: Outcomes of surgical treatment of patellar instability in children with Down syndrome
CASE | Age at surgery In (years + months) | sex | Side | Prior knee surgery type | Final follow up in months | Main Symptom | Dugdale Grade | Caton Dechamp Ratio | TT-TG distance in mm | MAD | PTA | MPFL Length in mm | Trochlear Dysplasia Dejour | Surgical procedures | Kujala score | Modified Lysholm | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pre | Final | Pre | Final | Pre | Final | Pre | Final | |||||||||||||
1 | 5 + 6 | M | R | No | 56 | Frequent Fall Limping | 3 | 1.10 | 12 | + 1.13 | + 1.7 | 25.6 | 2.4 | 79 | B | LR+ (R-G) procedure + MPFLR | 74 | 88 | 62 | 91 |
2 | 12 | M | R | No | 54 | Frequent Fall Limping | 4 | 1.50 | 14 | + 1.21 | + 1.11 | 35.6 | 3.5 | 89 | B | LR+ (R-G) procedure + MPFLR | 55 | 96 | 53 | 96 |
3 | 14 + 1 | M | R | No | 53 | Frequent Fall Pain | 3 | 1.10 | 17 | + 1.64 | + 1.84 | 24.1 | 2.6 | 85 | A | LR+ (R-G) procedure + MPFLR | 61 | 96 | 62 | 96 |
4 | 8 | F | L | No | 52 | Frequent Fall Limping Pain | 5 | 1.10 | 22 | + 3.31 | + 2.23 | 44.6 | 1.8 | 83 | C | LR + VY Q lengthening + (R-G) procedure + MPFLR | 55 | 88 | 54 | 82 |
5 | 11 | M | L | No | 52 | Frequent Fall Pain | 4 | 1.00 | 21 | + 1.31 | + 1.25 | 27.2 | 3.9 | 82 | D | LR+ (R-G) procedure + MPFLR | 61 | 96 | 62 | 96 |
5 | 11 + 8 | M | R | No | 44 | Frequent Fall Pain | 4 | 1.10 | 13 | + 1.33 | + 1.23 | 26.9 | 2.1 | 83 | C | LR+ (R-G) procedure + MPFLR | 63 | 98 | 62 | 96 |
6 | 13 | M | L | No | 49 | Frequent Fall Limping | 3 | 1.10 | 14 | + 0.3.7 | + 3.21 | 23.6 | 3.3 | 82 | B | LR+ (R-G) procedure + MPFLR Loose body removal+ | 31 | 88 | 49 | 82 |
7 | 10 + 5 | F | R | No | 47 | Frequent Fall Limping | 4 | 0.95 | 11 | + 3.66 | + 3.44 | 26.3 | 2.7 | 80 | C | LR+ (R-G) procedure + MPFLR | 55 | 96 | 54 | 96 |
8 | 9 + 3 | M | L | No | 45 | Frequent Fall | 3 | 1.00 | 12 | + 4.45 | + 5.41 | 24.2 | 2.8 | 78 | A | LR+ (R-G) procedure + MPFLR | 51 | 96 | 39 | 96 |
9 | 9 + 2 | M | R | No | 42 | Frequent Fall Limping | 5 | 0.90 | 15 | + 4.33 | + 3.11 | 39.4 | 2 | 90 | B | LR+ (R-G) procedure + MPFLR | 63 | 88 | 49 | 91 |
10 | 11 + 1 | M | L | No | 40 | Frequent Fall Limping | 4 | 1.00 | 20 | + 1.39 | + 1.01 | 27.1 | 1.3 | 92 | D | LR+ (R-G) procedure + MPFLR + MM repair. | 31 | 88 | 43 | 91 |
11 | 13 + 2 | M | L | No | 39 | Frequent Fall Pain | 3 | 1.00 | 8 | + 5.23 | + 6.1 | 22.6 | 1.7 | 92 | A | LR ++ (R-G) procedure + MPFLR + Patellar chondroplasty + LM repair | 31 | 88 | 62 | 96 |
Range ±SD | (5.5–14.1) 10.7 ± 2.4 |  |  |  | (39–56). 47.7 ± 5.8 |  |  | (0.9–1.5) 1.1 ± 0.2 | (8–22 mm). 14.9 ± 4.3 mm | Median 2.48 IQR (1.32–4.17) | Median 2.04 IQR (1.24–3.38) | (22.6–44.6) 28.9 ± 7 | (1.3–3.9) 2.5 ± 0.8 | (78–92) 84.6 ± 5 |  |  | (31–74) 52.6 ± 14.3 | (88–98) 92.2 ± 4.4 | (39–62). 54.3 ± 8.1 | (82–96) 92.4 ± 5.3 |