Robotic-Assisted Versus Conventional Total Knee Arthroplasty(TKA)

Is Clinical Outcome of Robotic-Assisted TKA Better Than Conventional Manual TKA?Prospective, Randomized Study

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.

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.

TKA is done with robotic-assisted manner. Final implantation of implants is done by surgeons, same as the conventional way. Robotic-assisted TKA for this arm.

Total knee arthroplasty is carried out with help of robotic surgery system, using a Robodoc system. CT-based preoperative planning using ORTHODOC (Integrated Surgical Technology Corp) performed in the first step before the day of surgery, and the robotic-assisted surgery using the ROBODOC surgical assistance in the second step. The bone markers are registered to the computer, and the computer arm does all the cutting and preparation of bones. This is in contrast to conventional jigs and cutting blocks. Actual implantation of the implants is done by a surgeon. A Duracon posterior cruciate-substituting total knee prosthesis (Stryker Orthopedics, Mahawh, NJ, USA) are used in all knees.

Total knee arthroplasty is carried out with classical, conventional, manual method. A surgeon measures the angle, length of the cuts with bone landmarks and specialized surgical instruments. After all the cuts actual implantation is done. A Duracon posterior cruciate-substituting total knee prosthesis (Stryker Orthopedics, Mahawh, NJ, USA) are used in all knees.

a proven score for the measurement of knee function, the score ranges from 0 to 100, 100 being the best possible score, indicating normal knee function

A tool to evaluate patient function associated with knee. The WOMAC measures five items for pain (score range 0-20), two for stiffness (score range 0-8), and 17 for functional limitation (score range 0-68). The total score is summed from individual sections, and 0 is the best possible score.

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

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