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.

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