Abstract：Objective To explore the short-term clinical and radiographic outcomes of domestic robot assisted total knee arthroplasty(RATKA).Methods A prospective randomized controlled study was conducted.The patients who met the inclusion and exclusion criteria for TKA surgery during the period from October 2021 to March 2022 were selected and divided into RATKA group and conventional group randomly.A total of 23 patients were finally included and divided into RATKA group and conventional TKA group by random envelope method.There were 11 patients in the RATKA group，among them 3 males and 8 females.Their mean age is (68.7±7.8) years old.There were 12 patients in the traditional TKA group，which had 1 male and 11 females.Their mean age was (70.8±5.0) years old.The radiographical accuracy indicators of the two groups of patients were recorded and analyzed as well as clinical efficacy indicators，including the lower limb alignment and prosthesis position，operation time，blood loss，functional score，perioperative complications，etc.Results For radiographical indicators，the deviation value of HKA in RATKA group was lower than that in conventional TKA group，which were(1.16±1.14) °and (2.56±1.90) °，P＝0.047，respectively.The deviation value of LTC was also lower than that in traditional TKA group，which were (0.95±0.71) ° and (1.75±0.98) °，P＝0.039.The operation time in RATKA group was (125.0 ± 8.4) min，which was significantly longer than that in traditional TKA group (101.0±28.5) min，P＝0.027.As for the osteotomy time，perioperative blood loss，range of motion (ROM)，clinical scores，there was no statistically significant difference (P＞0.05).There was no significant difference in the incidence of perioperative complications between the two groups (P＞0.05).Conclusion With the help of domestic RATKA system，the initial total knee replacement is more accurate in lower limb alignment and lateral tibial prosthesis installation.It’s safe，reliable and worth promotion in clinic.
［1］Feng B，Zhu W，Bian YY，et al.China artificial joint annual data report［J］.Chin Med J (Engl)，2020，134(6)：752-753.
［2］Goh GS，Liow MHL，Bin Abd Razak HR，et al.Patient-reported outcomes，quality of life，and satisfaction rates in young patients aged 50 years or younger after total knee arthroplasty［J］.J Arthroplasty，2017，32(2)：419-425.
［3］Huang T，Chuang P，Lee C，et al.Total knee arthroplasty in patients with Ranawat type-Ⅱ valgus arthritic knee with a marked coronal femoral bowing deformity：comparison between computer-assisted surgery and intraarticular resection［J］.J Orthop Surg Res，2016，11(1)：88.
［4］Mason JB，Fehring TK，Estok R，Banel D，Fahrbach K.Metaanalysis of alignment outcomes in computer-assisted total kneearthroplasty surgery［J］.J Arthroplast，2007(22)：1097-1106.
［5］Vaidya NV，Deshpande AN，Panjwani T，et al.Robotic-assisted TKA leads to a better prosthesis alignment and a better joint line restoration as compared to conventional TKA：A prospective randomized controlled trial［J］.Knee Surg Sports Traumatol Arthrosc，2022，30(2)：621-626.
［6］Vermue H，Winnock de Grave P，Ryckaert A，et al.Equal bony resection of distal and posterior femur will lead to flexion/extension gap inequality in robotassisted cruciateretaining TKA［J］.Knee Surg Sports Traumatol Arthrosc，2022，30(8)：2617-2623.
［7］Rele S，Shadbolt C，Schilling C，et al.The impact of enhanced recovery after surgery on total joint arthroplasty：Protocol for a systematic review and meta-analysis［J］.JMIR Res Protoc，2021，10(3)：e25581.
［8］Gross JB.Estimating allowable blood loss：Corrected for dilution［J］.Anesthesiology，1983(58)：277-280.
［9］Gao FQ，Li ZJ，Zhang K，et al.Four methods for calculating blood-loss after total knee arthroplasty［J］.Chin Med J (Engl)，2015，128(21)：2856-2860.
［10］Lang JE，Mannava S，Floyd AJ，et al.Robotic systems in orthopaedic surgery［J］.J Bone Joint Surg (Br)，2011，93(10)：1296-1299.
［11］Li Z，Chen X，Wang X，et al.HURWA robotic-assisted total knee arthroplasty improves component positioning and alignment-A prospective randomized and multicenter study［J］.J Orthop Translat，2022(33)：31-40.
［12］夏润之，童志成，张经纬，等.国产“鸿鹄”膝关节置换手术机器人的早期临床研究［J］.实用骨科杂志，2021，27(2)：108-113；117.
［13］袁铭成，石小军，苏强，等.国产机器人辅助人工全膝关节置换术近期疗效的前瞻性随机对照研究［J］.中国修复重建外科杂志，2021，35(10)：1251-1258.
［14］Xu J，Li L，Fu J，et al.Early clinical and radiographic outcomes of robot-assisted Versus conventional manual total knee arthroplasty：A randomized controlled study［J］.Orthop Surg，2022，14(9)：1972-1980.
［15］Kort N，Stirling P，Pilot P，et al.Robot-assisted knee arthroplasty improves component positioning and alignment，but results are inconclusive on whether it improves clinical scores or reduces complications and revisions：A systematic overview of meta-analyses［J］.Knee Surg Sports Traumatol Arthrosc，2022，30(8)：2639-2653.
［16］Marchand KB，Ehiorobo J，Mathew KK，et al.Learning curve of robotic-assisted total knee arthroplasty for a high-volume surgeon［J］.J Knee Surg，2022，35(4)：409-415.
［17］Sodhi N，Khlopas A，Piuzzi NS，et al.The learning curve associated with robotic total knee arthroplasty［J］.J Knee Surg，2018，31(1)：17-21.
［18］Kayani B，Konan S，Tahmassebi J，et al.Robotic-arm assisted total knee arthroplasty is associated with improved early functional recovery and reduced time to hospital discharge compared with conventional jig-based total knee arthroplasty：A prospective cohort study［J］.Bone Joint J，2018，100B(7)：930-937.
［19］Agarwal N，To K，McDonnell S，et al.Clinical and radiological outcomes in robotic-assisted total knee arthroplasty：A systematic review and meta-analysis［J］.J Arthroplasty，2020，35(11)：3393-3409.
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