Leqephe lena le bokella lipalo-palo tse fetang 40 tsa ho kenngoa ha masapo le ho buuoa ka masapo ho tsoa mehloling e nang le matla e kenyeletsang Mokhatlo oa Lefatše oa Bophelo, Machaba a Kopaneng, OECD, US CDC, registries ea American Academy of Orthopedic Surgeons, le lipatlisiso tsa Global Burden of Disease tse hlahlojoang ke lithaka. Likhakanyo tsa boholo ba 'maraka tse kentsoeng ka masapo le masapo li kenyelelitsoe ka thoko 'me ka ho hlaka li amahanngoa le lifeme tsa lipatlisiso tse li hlahisitseng.