Andrew Bynum's agent continues to keep the specifics of his client's knee issue a secret.

All of the publicly available information on Bynum suggests a probable diagnosis of osteochondral lesions says one of the nation's top orthopedic surgeons, a condition that may keep Bynum out for the season.

The condition could heal on its own within four to six months, but that would keep Bynum out until March or April.

The surgeon said that surgery could keep him from playing for up to a year.

Bynum should know whether he needs surgery by December.

The surgeon spoke on condition of anonymity because Bynum is not his patient.