Did you possibly mean apophysis?
- apophysis + -itis (Wiktionary)
“A common injury in young players is Sever disease, or technically, calcaneal apophysitis, which is attributable, at least in part, to playing on hard fields with cleats that don't have enough heel and arch support.”
“Calcaneal apophysitis or Sever's Disease is a problem that can cause imbalance issues in younger player's feet.”
“The cost of those dreams is a rising tide of unpronounceable medical ailments like traction apophysitis, medial epidcondylitis and osteochondritis dissecans, scary badges that are being attached to athletes at younger and younger ages.”
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