Clinical trial NCT03659318: Robotic-Assisted Versus Conventional Total Knee Arthroplasty(TKA)
Official title: Is Clinical Outcome of Robotic-Assisted TKA Better Than Conventional Manual TKA?Prospective, Randomized Study
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE4
Conditions: Arthritis
Knee Arthropathy
Robotics
Lead sponsor: Ewha Womans University
Sponsor class: OTHER
First posted: 2018-09-06
Enrollment: 674
Sex: ALL
Minimum age (years): 20
Maximum age (years): 65
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Primary purpose: TREATMENT

Brief summary: Robotic-assisted total knee arthroplasty (TKA) was introduced to attempt to enhance the precision of bone preparation, component alignment and ultimately improve clinical results and survivorship of TKA. Although several published data suggest that bone preparation, and knee component alignment were improved by using robotic assistance, there is no high-quality evidence from randomized trials at long-term of which investigators are aware evaluating whether the improved bone preparation and knee component alignment improved clinical function or longevity of the TKA.

Detailed description: Robotic-assisted TKA was introduced in an attempt to enhance component alignment and to improve long-term clinical results and implant durability, particularly in younger patients. Several comparative studies of conventional and robotic-assisted TKAs demonstrated that improved alignment of the components was obtained after the robotic-assisted TKAs than conventional TKAs.

To date, however, no comprehensive synthesis of long-term randomized data has been conducted specifically for robotic-assisted TKA, particularly in younger patients. It is crucial to determine whether improved alignment of the TKA components obtained by using robotic-assistance, would improve better long-term and functional results and survivorship of TKAs.

The aims of the current study were to examine the two groups of patients after long-term follow-up to determine whether the clinical results, radiographic and CT scan results, and the survivorship of TKA would be better after robotic-assisted TKA than after conventional TKA.

Eligibility criteria: Inclusion Criteria:

* end stage knee arthritis

Exclusion Criteria:

* mild knee deformity
* inflammatory arthritis
* foot and ankle disorder
* dementia
* hip disease
* history of a stroke
* older than 65 years of age

Primary outcomes:
measure: Knee society Knee score
timeFrame: 20 years after the surgery
Secondary outcomes:
measure: WOMAC score
timeFrame: 20 years after the surgery
Other outcomes:
Locations:
Study officials:
References:
citation: Arima J, Whiteside LA, McCarthy DS, White SE. Femoral rotational alignment, based on the anteroposterior axis, in total knee arthroplasty in a valgus knee. A technical note. J Bone Joint Surg Am. 1995 Sep;77(9):1331-4. doi: 10.2106/00004623-199509000-00006.
citation: Bellamy N, Buchanan WW, Goldsmith CH, Campbell J, Stitt LW. Validation study of WOMAC: a health status instrument for measuring clinically important patient relevant outcomes to antirheumatic drug therapy in patients with osteoarthritis of the hip or knee. J Rheumatol. 1988 Dec;15(12):1833-40.
citation: Bellemans J, Vandenneucker H, Vanlauwe J. Robot-assisted total knee arthroplasty. Clin Orthop Relat Res. 2007 Nov;464:111-6. doi: 10.1097/BLO.0b013e318126c0c0.
citation: Crowder AR, Duffy GP, Trousdale RT. Long-term results of total knee arthroplasty in young patients with rheumatoid arthritis. J Arthroplasty. 2005 Oct;20(7 Suppl 3):12-6. doi: 10.1016/j.arth.2005.05.020.
citation: Decking J, Theis C, Achenbach T, Roth E, Nafe B, Eckardt A. Robotic total knee arthroplasty: the accuracy of CT-based component placement. Acta Orthop Scand. 2004 Oct;75(5):573-9. doi: 10.1080/00016470410001448.
citation: Jacofsky DJ, Allen M. Robotics in Arthroplasty: A Comprehensive Review. J Arthroplasty. 2016 Oct;31(10):2353-63. doi: 10.1016/j.arth.2016.05.026. Epub 2016 May 18.