Change in research plan

Study designed to evaluate the Zip Surgical Skin Closure device versus conventional steel staple placement when utilized for surgical wound closure after bi lateral unicompartmental or bi later total knee replacement.

This is a randomized, within patient control study aiming to enroll up to 25 subjects requiring bi lateral knee arthroplasty (unicompartmental or toal) at a single study center. Subjects will be followed for up for 6 weeks post surgery to evaluate wound healing and overall satisfaction of closure methods.

Inclusion Criteria:

• Patients requiring epidermal closure after bi lateral total or partial (unicompartmental) knee arthroplasty;
• Patients willing to be evaluated at discharge and 6-weeks post op.

Exclusion Criteria:

• Known bleeding disorder not caused by medication
• Known personal or family history of keloid formation or scar hypertrophy
• Known allergy or hypersensitivity to non-latex skin adhesives
• Atrophic skin deemed clinically prone to blistering
• Any skin disorder affecting wound healing
• Any other condition that in the opinion of the investigator would make a particular patient unsuitable for this study