iAssist versus conventional total knee arthroplasty in patients with varus and valgus deformities

Authors

  • Senthur Rajendren Vanniar Department of Orthopedics, Nanjing Medical University, Nanjing, China
  • Li Ming Wang Department of Orthopedics, Nanjing Medical University, Nanjing, China
  • Qing Qiang Yao Department of Orthopedics, Nanjing Medical University, Nanjing, China
  • Taraka Venkata Pavan Maddali Department of Orthopaedics and Traumatology, Malla Reddy Medical College for Women, Hyderabad, Telangana, India

DOI:

https://doi.org/10.18203/issn.2455-4510.IntJResOrthop20181793

Keywords:

iAssist, Navigated TKA, Varus and valgus deformity, Conventional TKA

Abstract

Background: Accelerometer and gyroscope based iAssist system's accuracy in restoring the hip knee angle (HKA) in valgus and varus deformity patients is compared to that of conventional system.

Methods: In this retrospective study we compared the HKA of 26 patients in iAssist group with that of 26 patients in conventional group. The knee joints were evaluated with full leg length radiographs.

Results: The iAssist group patients’ post-operative hip knee angle was much near to our target angle when compared to that of patients in conventional technique group.

Conclusions: iAssist brings the high accuracy associated with large console CAS systems with lower costs and helps surgeons in low volume hospitals achieve specific intra operative goals with the familiarity of conventional guides.

Author Biographies

Senthur Rajendren Vanniar, Department of Orthopedics, Nanjing Medical University, Nanjing, China

post graduate student Orthopedics

Li Ming Wang, Department of Orthopedics, Nanjing Medical University, Nanjing, China

Chairman, Institute of Digital Medicine, Nanjing Medical University

Qing Qiang Yao, Department of Orthopedics, Nanjing Medical University, Nanjing, China

Deputy Chair, Institute of Digital Medicine, Nanjing Medical University

Taraka Venkata Pavan Maddali, Department of Orthopaedics and Traumatology, Malla Reddy Medical College for Women, Hyderabad, Telangana, India

Malla Reddy Medical College for Women

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Published

2018-04-25

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Original Research Articles