Effect of three-dimensional printing technique assisted knee arthroplasty in the treatment of knee osteoarthritis with extraarticular deformities / 中国基层医药

ABSTRACT

Objective:To investigate the effect of three-dimensional printing technique assisted knee arthroplasty in the treatment of knee osteoarthritis with extraarticular deformities.Methods:Twelve patients with knee osteoarthritis and extraarticular deformities in the Sixth People's Hospital of Fuyang were selected as the study subjects from January 2016 to June 2018, and all patients were treated with total knee arthroplasty assisted by 3D printing.The operation time, intraoperative blood loss, preoperative simulated osteotomy value, intraoperative osteotomy value, postoperative drainage volume, joint activity score and Hospital for Special Surgery (HSS) score before treatment, 6 months after replacement and at the last follow-up were observed.Results:The intraoperative blood loss of patients was an average of (389.9±32.6)mL, and the drainage volume of patients was an average of (405.2±85.4)mL.There were no statistically significant difference between preoperative analogue value and intraoperative osteotomy value (all P>0.05). The HSS score ( P<0.001) and knee joint mobility ( P<0.001) were significantly higher at 6 months after operation and the last follow-up, and the mechanical axis deviation of lower limbs was significantly lower than that before operation ( P<0.001). Conclusion:Treatment of knee osteoarthritis with extra-articular deformity by using 3D printing assisted technique can restore the lower limbs and promote the recovery of knee joint function, which has satisfactory short-term effect and deserves further study and discussion.