Orioles radio broadcaster Fred Manfra, who underwent hip replacement surgery in April, will be out several more weeks after undergoing a second procedure May 19 to correct a displaced surgical pin in his femur.

“Everything’s going well,’’ Manfra said in a telephone interview Monday. “A pin slipped, and I had a second surgery two weeks ago. Hopefully, this one will take.”

Manfra, who teams with Joe Angel on the WBAL radio broadcasts, is still using a walker to get around and said he hopes to be back at work toward the end of this month.

“They can’t put an exact timetable on it,’’ he said. “We’re thinking later this month, but they can’t promise anything. I was about a week from coming back when the first surgery didn’t take.”

The Orioles and WBAL have been plugging Mid-Atlantic Sports Network host Jim Hunter and former Orioles pitcher Dave Johnson into Manfra’s role for the past six weeks. That will continue, but former Orioles pitcher Ben McDonald also will move into the radio rotation next week.