I really have no idea if old hockey players are more susceptible to arthritis than the rest of the population, but I did find this headline a bit odd.
Aside from Johnny Bower famously playing through arthritis, I never heard of a player actually retiring specifically because of the ailment.
In 2006 Jonsson was declared an Unrestricted Free Agent and immediately signed with the Philadelphia Flyers. General Manager Bobby Clarke described Jonsson as "a very interesting player with very good potential. He is a really good skater, good with the puck and a good two-way player."
Maybe so, but Jonsson never stuck with the Flyers. He played two seasons with the Flyers AHL farm team and was called up for an 8 game stretch in 2006-07. With 2 assists and 6 penalty minutes on his record, those would be the only 8 games of his NHL career.
In 2008 he returned to Sweden and played a solid role with Byrnas. However he suffered from rheumatoid arthritis that kept him off the ice for increasing periods of time. His last game was played in 2011 even though he didn't announce his retirement until the summer of 2013.