Total Joint Replacement Educational Series Part 6: Surprising Statistics About Knee and Hip Replacement Surgery
Posted Oct 10 2008 2:12pm
(from The Journal of Bone & Joint Surgery, Volume 89-A, Number
12, December 2007)
· The upward trends in the utilization of total hip and
knee replacement between 1969 and 2003 detail the national need for these
· The age and gender-adjusted incidence per 100,000
person-years significantly increased from 1971 to 2003, representing a greater than 400%
increase in the incidence of total knee replacement (as compared with a 55%
increase in total hip replacement during the same period).
· There was a significantly higher utilization rate
· The incidence increased with the patient's age for
total knee replacement, except in patients more than eighty years old.
· The largest percentage increase was in patients less
than fifty years old.
· There was a significant increase in the proportion of
total knee replacements performed for the treatment of osteoarthritis, from 51%
during 1971-1975 to 92% in 2000- 2003.
· This also reflects a reduction in the incidence of
total knee replacements performed for the treatment of rheumatoid arthritis
over the same period.
· It is projected that the number of primary total
knee replacements will increase from 450,400 to 3.48 million by 2030,
compared with a growth in the number of primary total hip replacements from 208,600 to 572,100 during the same interval.
· The volume of revision total hip replacements is
projected to grow from 40,800 in 2005 to 96,700 in 2030 ( a 137% increase ).
· The volume of revision total knee replacements is
projected to grow from 38,300 in 2005 to 268, 200 in 2030 ( a 600% increase ).
· The continued and rapid growth of utilization of total
knee replacement reflects a trend that will require additional resources in the
· This dramatically increased demand for replacement
procedures will require additional discussions regarding the distribution of
economic resources; the allocation of surgeons, facilities and resources; and improved
· Additionally, given the growth in the number of
procedures in the younger, more active patients, implant longevity will require