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Vital Signs

Facts & Figures - Joint resolution

When the first successful joint replacement operations were done

300,000 / 193,000
Number of knee / hip replacements now done each year in the U.S.

700 / 350
Number of knee / hip replacements now done each year at DHMC

$39,050 / $41,400
Average total charge (for hospital and professional fees) for a knee / hip replacement at DHMC

When Dartmouth began to collect failed, "explanted" artificial joints from all over the world to study the reasons for their failure

> 8,000
Number of explanted joints amassed at Dartmouth since then; it is now the world's largest such collection

When Dartmouth's Dr. Michael Mayor, an orthopaedic surgeon, and John Collier, a biomedical engineer, began to develop a porous-coated hip implant, the first cementless artificial joint

> 90%
National success rate of joint replacement operations today

Sources: DHMC, The American Academy Of Orthopaedic Surgeons, And The National Institute Of Arthritis And Musculoskeletal And Skin Diseases

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