Background
Methods
Patient information
Variable | Number |
---|---|
Ages (yes) | |
<18 years old (%) | 42 (26) |
>18 years old (%) | 164 (74) |
Gender (%) | |
Female | 109 (53) |
Male | 97 (47) |
Types (%) | |
Monostotic | 141 (68) |
Polyostotic | 65 (32) |
Bilateral femoral involvement | 21 (10) |
Unilateral femoral involvement | 185 (90) |
Lesion ranges (%) | |
The proximal 1/3 femur only | 179 (79) |
Distal to the proximal 1/3 femur | 48 (21) |
Pathological fractures (%) | 93 (41) |
Radiographic evaluation
Description of the classification system
Parameters | |||
---|---|---|---|
Types | Coxa vara | Varus deformity in the proximal femoral shaft | Reduction in the proximal femoral strength |
Type 1 | − | − | − |
Type 2 | − | − | + |
Type 3 | + | − | +/− |
Type 4 | − | + | +/− |
Type 5 | + | + | +/− |
Statistical analysis: intra- and interobserver agreement
Treatment
Results
Classification system
Lesion locations | |||||
---|---|---|---|---|---|
Types | Femoral neck | Femoral trochanter | Neck + trochanter | Trochanter + proximal shaft | |
Type 1 | N1 = 75a (%) | 25 (33) | 29 (39) | 16 (21) | 5 (7) |
Type 2 | N2 = 69 (%) | 4 (6) | 23 (33) | 28 (41) | 14 (20) |
Type 3 | N3 = 27 (%) | 0 | 0 | 15 (56) | 12 (44) |
Type 4 | N4 = 24 (%) | 0 | 0 | 0 | 24 (100) |
Type 5 | N5 = 32 (%) | 0 | 0 | 0 | 32 (100) |
Intra- and interobserver agreement
Clinical outcomes and progression of the disease
Clinical outcomes | ||||||
---|---|---|---|---|---|---|
Types | Pain | Limited hip motion | Limping | Limited daily activities | Limited social activities | |
Type 1 N1 = 75a (%) | Before treatment | 53 (71) | 0 (0) | 4 (5) | 7 (9) | 15 (20) |
Post treatment | 2 (3) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | |
Type 2 N2 = 69 (%) | Before treatment | 62 (90) | 24 (35) | 54 (78) | 56 (81) | 58 (84) |
Post treatment | 5 (7) | 0 (0) | 4 (6) | 2 (3) | 0 (0) | |
Type 3 N3 = 27 (%) | Before treatment | 23 (85) | 20 (74) | 24 (89) | 23 (85) | 24 (89) |
Post treatment | 4 (15) | 4 (15) | 1 (4) | 1 (4) | 3 (11) | |
Type 4 N4 = 24 (%) | Before treatment | 22 (92) | 9 (38) | 24 (100) | 22 (92) | 24 (100) |
Post treatment | 3 (13) | 1 (4) | 3 (13) | 1 (4) | 3 (13) | |
Type 5 N5 = 32 (%) | Before treatment | 32 (100) | 15 (47) | 32 (100) | 32 (100) | 32 (100) |
Post treatment | 3 (9) | 4 (13) | 3 (9) | 3 (9) | 5 (16) |