FRANKFORT, Ky. - A trial court properly allowed a defense medical expert to testify that cortisone injections could have caused a shoulder injury alleged by the plaintiff to have been caused by a surgeon's negligence, a Kentucky Court of Appeals panel held Feb. 14 (Lisa Marie Borboa, et al. v. Casey R. Starsiak, et al., No. 2012-CA-001642-mr no. 2012-CA-001701-mr, Ky. App.; 2014 Ky. App. Unpub. LEXIS 125).