Skip to main content

Table 1 Descriptive Characteristics of the Population before Surgery

From: Clinical outcomes and predictive factors for failure with MPFL reconstruction combined with tibial tubercle osteotomy and lateral retinacular release for recurrent patellar instability

Variable n(%)
Sex
  male 30 (28)
  female 78 (72)
Age at surgery, y
  Mean ± SD 19.2 ± 6.1
  Minimum; Maximum 13; 40
Body mass index, kg/m2
  Mean ± SD 21.7 ± 3.4
  Minimum; Maximum 16.6; 37.6
Side
  Right 52 (48)
  Left 56 (52)
Patellar height(CDI)
  Mean ± SD 1.2 ± 0.22
  Minimum; Maximum 0.5; 1.6
Class of patellar height
   < 1.3 36 (33)
   ≥ 1.3 72 (67)
Trochlear dysplasia
  Type A 26 (24)
  Type B 18 (17)
  Type C 38 (35)
  Type D 26 (24)
TT-TG distance, mm
  Mean ± SD 22 ± 3.0
  Minimum; Maximum 17; 30
Class of TT-TG distance, mm
   < 20 30 (28)
   ≥ 20 78 (72)
Postoperative Kujala score
  Mean ± SD 90.5 ± 15.5
  Minimum; Maximum 24; 100
Postoperative Tegner score
  Mean ± SD 5.3 ± 1.3
  Minimum; Maximum 2; 8
Postoperative IKDC score
  Mean ± SD 72.7 ± 12.1
  Minimum; Maximum 26; 86
Follow-up, m
  Mean ± SD 61.3 ± 15.4
  Minimum; Maximum 36; 92
Status at the follow-up
  Success 102 (94)
  Failure 6 (6)