Table 3

Patient demographics and surgical details of studies investigating HTO outcomes

StudyTotal sample (N)
Analysed (A)
Patient characteristics
Age (years)
Gender (F, M)
BMI (kg/m2)
Type of osteotomyFollow-up periodComplication rateSurvivorship
Current studyN: 21151 years (95% CI 42 to 57)
F: 16%
28.9 kg/m2 (95% CI 23 to 36 kg/m2)
Medial opening wedge5 years (3–8)13.3%97.8% at 5 years
80% at 10 years
Spahn et al 32 N: 94; A: 8448.5 years (31–67)
F: 44%
27.1±3.6 kg/ m2
Medial opening wedge45.9±7.6 months
(34–60)
6.4%NR
Asik et al 33 n=6554 years (39–76)
F: 72%
Medial opening wedge34 months
(18–60)
9.2%NR
De Meo et al 14 N: 2049.4 years (36–67)
F: 30%
Medial opening wedge8.3 years
(5–8.75)
20%70% at 8 years
Robinson et al 24 N: 949 years (37–59)
M: 100%; BMI <35
Medial opening wedge+external fixation19 months
(15–35)
6%88.9% at 19 months
Schallberger et al 4 N: 72; A: 5440 years (31–58)
F: 31%
Opening and closing16.5 years
(13–21)
NR98% at 5 years
92% at 10 years
71% at 15 years
Bode et al 34*N: 43 A: 1940.2±9.9 years
25.2±3.1 kg/m2
Medial opening wedge+ACS71.88±23.99 monthsNRNR
W-Dahl et al 5 N: 316152±7.5 years
F:31%
Opening and closing8.7 years
(3–13)
NR70% at 10 years
Floerkemeier et al 13 N: 533, A: 38649.3 years (18–84)
F: 31%
27.2±4.0 kg/m2 (n=504)
Medial opening wedge3.6 years
(2.4–4.7)
6%NR
Harris et al 3N: 439654.2±8.1 years
F: 54%, M46$
26.1±2.85 kg/m2
Opening and closing9.2±5.2 yearsNR92.4% at 5 years
Harris et al 3N: 39947±10.7 years
F: 41%
27.3±0.35 kg/m2
Opening and closing+ACS5.0±2.3 yearsNR97.7% at 5 years
Harris et al 3N: 11333.6 years
Not fully reported
Opening and closing+MAT6.8±5.2 yearsNR90.9% at 5 years
Giuseffi et al 35 N: 100, A: 8348.1 yearsMedial opening wedge4.0 years (1–10)7%60% at 10 years
Schuster et al 36 N: 9150.4±8 years
F: 13.2%
Medial opening wedge5.6 years (5–7.3)6.6%95.2% at 5 years
Duivenvoorden et al 37 N: 41249.2±9.3 years
F: 40.8%
Opening and closing9.8±4.9 years17%75% at 10 years for CW
90% at 10 years for OW
  • *Only those with an HTO (HTO vs non-HTO group).

  • †Broken up for ease of interpretation.

  • ACS, articular cartilage surgery; MAT, meniscus allograft transplantation; NR, not recorded; OW, opening wedge; CW, closing wedge.