Early patellar tendon rupture after total knee arthroplasty: A direct repair method

Table 1 Demographic and clinical data of 12 patients

Variable	Value	P value
Age (yr)	69.1 ± 7.4 (59-81)
Gender (M/F)	1/11
BMI (kg/m2)	26.5 ± 2.7 (22.3-30.3)
Number of surgeries per patient	2-8
Complications
Infection	1 (8.3%)
Re-fracture	2 (16.7%)
WOMAC score
Post-operation	65.8 ± 30.9
HSS scorePost-operation	60.3 ± 21.7
Range of motion		< 0.001
Pre-operation	109.2° ± 10.6°
Post-operation	87.9 ± 11°
Extensor lagPre-operation	30.2 ± 19.9	< 0.001
Post-operation	21 ± 18.1

BMI: Body mass index; WOMAC: Western Ontario and McMaster Universities; HSS: Hospital for Special Surgery; F: Female; M: Male.