Knee Replacement Questions?
Discover new, game-changing technologies that can help you start living your full life again—a more normal feeling knee,1 a smoother recovery2,3 and implants built to last.

Official joint replacement
technology of the
Pro Football Hall of Fame
The Ultimate Knee Replacement Experience
See how knee replacement has changed—and what it can do for you.
Designed for you
With 3D digital modeling from the CORI◊ Surgical System you get a surgical plan that’s customized to your unique anatomy. That means your surgeon can perform your procedure more efficiently and accurately than traditional knee replacement surgery.
Higher patient satisfaction—Smoother recovery4,5,6
The JOURNEY◊ II Knee System has been demonstrated to improve a patient’s range of motion more quickly after surgery. This faster recovery, along with the implant’s normal pattern of motion, have been shown to lead to high levels of patient satisfaction.

An implant built to last
With Smith+Nephew knee implants, your surgeon has access to OXINIUM◊ Oxidized Zirconium. This unique metal alloy is designed to reduce the effects of implant wear and tear. In fact, OXINIUM knee implants have been lab-tested for durability 9-times longer than the international standard for joint replacements7.
Steve Marshall Martin, MD
Knee replacement specialist Dr. Steve Martin offers a variety of knee replacement options to patients in the greater Charlotte, NC area. Dr. Steve Martin is a knee replacement surgeon who uses hand-held CORI Knee Technology to deliver advanced surgical technology to patients throughout the greater Charlotte, NC area. Dr. Martin uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Travis B Eason, MD
Dr. Travis Eason is a knee replacement surgeon who combines advanced surgical technology and implant options to patients throughout the greater Statesville, NC, Mooresville, NC area. Dr. Travis Eason uses hand-held CORI Robtics-assisted knee replacement to deliver personalized surgical planning to patients in the greater Statesville, NC, Mooresville, NC area. Dr. Eason uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Dietrich Kayser, MD
Dr. Dietrich Kayser is a knee replacement surgeon serving Rutherfordton, NC and surrounding areas. Dr. Dietrich Kayser is a robotics knee replacement specialist using CORI Knee Technology to deliver personalized surgical planning to patients throughout the greater Rutherfordton, NC area. Dr. Kayser uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Charles Bond, MD
Dr. Charles Bond combines the advanced technologies and implant options today's knee replacement patients demand. Dr. Bond uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Raymond Duffet, MD
Dr. Raymond Duffet is a knee replacement specialist delivering care to patients in Winston-Salem, NC and surrounding areas. Dr. Raymond Duffet is a robotics knee replacement specialist using CORI Knee Technology to deliver personalized surgical planning to patients throughout the greater Winston-Salem, NC area. Dr. Duffet uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
James Stanislaw, MD
Dr. James Stanislaw is a knee replacement surgeon serving Granite Falls, NC, Lenoir, NC and surrounding areas. Dr. James Stanislaw has been trained on CORI Knee Technology and uses hand-held robotics-assisted surgery to deliver the highest quality care. Dr. Stanislaw uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Barrett Little, MD
Dr. Barrett Little is a knee replacement surgeon who combines advanced surgical technology and implant options to patients throughout the greater Fort Mill, SC area. Hand-held robotics-assisted knee surgeon Dr. Barrett Little combines advanced technology with the implant options today's patients demand. Dr. Little uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Shane Tipton, MD
Dr. Shane Tipton serves Concord, NC and surrounding areas with knee replacement expertise. Dr. Tipton uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Jeffrey P. Keverline, MD
A specially trained knee replacement surgeon, Dr. Jeffrey Keverline uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame to deliver the options patients in the greater Granite Falls, NC, Lenoir, NC demand. Dr. Jeffrey Keverline has been trained on CORI Knee Technology and uses hand-held robotics-assisted surgery to deliver the highest quality care.
Brian Pienkos, MD
Dr. Brian Pienkos is a knee replacement surgeon who combines advanced surgical technology and implant options to patients throughout the greater Rutherfordton, NC area. Dr. Pienkos uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
James L. Comadoll, MD
Dr. James Comadoll is a knee replacement specialist delivering care to patients in Salisbury, NC and surrounding areas. Dr. James Comadoll is a knee replacement surgeon who uses hand-held CORI Knee Technology to deliver advanced surgical technology to patients throughout the greater Salisbury, NC area. Dr. Comadoll uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Ron Singer, MD
Dr. Ron Singer is a knee replacement surgeon serving Charlotte, NC and surrounding areas. Hand-held robotics-assisted knee surgeon Dr. Ron Singer combines advanced technology with the implant options today's patients demand. Dr. Singer uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Rusell K Stewart, MD
Dr. Rusell Stewart serves Lenoir, NC and surrounding areas with knee replacement expertise. Hand-held robotics-assisted knee surgeon Dr. Rusell Stewart combines advanced technology with the implant options today's patients demand. Dr. Stewart uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Van Sikes, MD
Dr. Van Sikes is a knee replacement surgeon who combines advanced surgical technology and implant options to patients throughout the greater Mooresville, NC area. Dr. Van Sikes uses hand-held CORI Robtics-assisted knee replacement to deliver personalized surgical planning to patients in the greater Mooresville, NC area. Dr. Sikes uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Paul Lichstein, MD
Dr. Paul Lichstein is a knee replacement surgeon who combines advanced surgical technology and implant options to patients throughout the greater Salisbury, NC, Lexington, NC area. Dr. Paul Lichstein uses hand-held CORI Robtics-assisted knee replacement to deliver personalized surgical planning to patients in the greater Salisbury, NC, Lexington, NC area. Dr. Lichstein uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Edward Walker, MD
Dr. Edward Walker serves Lincolnton, NC and surrounding areas with knee replacement expertise. Dr. Walker uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Kevin Weiss, DO
Dr. Kevin Weiss combines the advanced technologies and implant options today's knee replacement patients demand. CORI Knee Technology helps Dr. Kevin Weiss deliver quality care with state-of-the-art robotics-assisted surgical techniques to patients in Rock Hill, SC, Charlotte, NC and surrounding areas. Dr. Weiss uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Timothy Ewald, MD
Dr. Timothy Ewald serves Denver, NC, Huntersville, NC, Mooresville, NC and surrounding areas with knee replacement expertise. Knee replacement surgeon Dr. Timothy Ewald offers advanced surgical technology to patients in the greater Denver, NC, Huntersville, NC, Mooresville, NC area thanks to the hand-held CORI Robotics-assisted surgical system. Dr. Ewald uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Josef E Jolissaint, MD
Dr. Josef Jolissaint is a knee replacement surgeon serving Charlotte, NC and surrounding areas. Hand-held robotics-assisted knee surgeon Dr. Josef Jolissaint combines advanced technology with the implant options today's patients demand. Dr. Jolissaint uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Briggs M Ahearn, MD
Dr. Briggs Ahearn is a knee replacement surgeon serving Pineville, NC and surrounding areas. Dr. Briggs Ahearn is a knee replacement surgeon who uses hand-held CORI Knee Technology to deliver advanced surgical technology to patients throughout the greater Pineville, NC area. Dr. Ahearn uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Canaan Prater, DO
Knee replacement specialist Dr. Canaan Prater offers a variety of knee replacement options to patients in the greater Gastonia, NC area. Dr. Prater uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Phillip A. Bostian, MD
Dr. Phillip Bostian combines the advanced technologies and implant options today's knee replacement patients demand. Dr. Phillip Bostian is a knee replacement surgeon who uses hand-held CORI Knee Technology to deliver advanced surgical technology to patients throughout the greater Hickory, NC area. Dr. Bostian uses Smith+Nephew implants and technologies, the official Joint Replacement Partner of the Pro Football Hall of Fame.
Looking for surgeons who who offer CORI Robotics-assisted knee surgery outside the Charlotte, NC area? Click here to find a surgeon near you.

A unique plan
Your knee replacement surgery is as unique as you are because it’s the only one that combines your knee’s anatomy with the specific implant your surgeon chooses for you. As a result, your surgery requires an individualized surgical plan to help ensure your implant is positioned and aligned correctly for your anatomy. With robotics-assisted surgery, your surgeon uses the CORI◊ Surgical System to create a customized 3D digital model of your knee. This three-dimensional view helps your surgeon finalize and verify the right size implant for you and create a detailed surgical plan for how your replacement will be placed in order to optimize movement and function. As an added benefit, the 3D digital model eliminates the need to get a CT scan of your knee before your surgery, which reduces your exposure to harmful radiation.
Knee replacement is most commonly performed as an inpatient procedure in a hospital. However, as healthcare options expand and surgical techniques continue to improve, alternatives including outpatient surgery and shorter hospital stays are becoming more common.
Arthritis of the knee is a disease which wears away the cartilage between the femur (thigh bone) and the tibia (shin bone) causing the two bones to scrape against each other, raw bone on raw bone.
Although the degenerative process may accelerate in persons with a previous knee injury, many cases of osteoarthritis occur when the knee simply wears out.





Robotics-assisted Surgery
What is OXINIUM◊ Oxidized Zirconium?