And much like Owen who returned to action for Newcastle United just nine days after surgery, the R's hope to have Barker available for their next Championship game against Ipswich on Saturday week.
"The club is keen to use the best available aid, which is absolutely great from my point of view," physio Paul Hunter told the club's official website.
"Ulrika uses the very latest techniques, which means the recovery time is a lot less.
"We've made use of the international break to get this done. We're confident that Chris will be back in training next week and available for the Ipswich game."
Meanwhile, on-loan Chelsea youngster Michael Mancienne is also set to return to full training following a six-week lay-off with related hamstring and back problems.