Table 2 Radiographic and operative information
Variable | Count (%) or mean ± standard deviation |
|---|---|
N | 70 |
Radiographic characteristics | |
TT-TG distance on MRI (mm) | 17.2 ± 3.9 |
TT-TG distance > 15 mm | 45 (64.3%) |
Insall-Salvati ratio on MRI | 1.2 ± 0.2 |
Patellar height | Normal height 30 (42.9%) Patella alta 40 (57.1%) |
Dejour classification of trochlear dysplasia | Type A 24 (34.3%) Type B 19 (27.1%) Type C 13 (18.6%) Type D 14 (20.0%) |
Treatment course and operative information | |
Time from symptom onset to initial evaluation (months) | 6.4 ± 27.5 |
Time from symptom onset to surgery (months) | 73.6 ± 104.7 |
Procedure laterality | Left 32 (45.7%)|Right 38 (54.3%) |
Graft type | Gracilis 65 (92.9%)|Semitendinosus 5 (7.1%) |
Had concomitant procedure | 45 (64.3%) |
Tibial tubercle osteotomy | 36 (51.4%) |
Meniscectomy | 2 (2.9%) |
Chondroplasty | 30 (42.9%) |
Loose body removal | 10 (14.3%) |