They are used when the knee is highly unstable and the ligaments will be unable to support other types of prostheses. This is rarely a first choice option. Constrained prostheses are reserved for severely damaged knees.
Blackwell, Oklahoma. Blackwell is a city in Kay County, Oklahoma, United States, located at the intersection of U.S. Highway 177 and State Highway 11 along Interstate 35. The population was 7,092 at the 2010 census. Blackwell was established following the September 16, 1893 Cherokee Outlet land run by A. J. Blackwell.
There are 8.84 miles from Tonkawa to Blackwell in north direction and 10 miles (16.09 kilometers) by car, following the US-60 Business route. Tonkawa and Blackwell are 15 minutes far apart, if you drive non-stop. This is the fastest route from Tonkawa, OK to Blackwell, OK. Tonkawa, OK and Blackwell, OK are in the same time zone (CDT).