BOSTON — The addition of tibial tubercle osteotomy in patients who underwent medial patellofemoral ligament reconstruction was seen as safe and effective, according to a presenter at the American Orthopaedic Society for Sports Medicine Annual Meeting. Both patients who underwent medial patellofemoral ligament reconstruction with or without tibial tubercle osteotomy saw significant improvements in most subjective outcomes scores.
“Activity scores were higher for the isolated [medial patellofemoral ligament] MPFL cohort at early follow-up” Seth L. Sherman, MD, said during his presentation. “Complication profile was similar between both groups.”
Sherman and colleagues retrospectively reviewed prospectively collected data for 87 patients who underwent soft tissue stabilization with MPFL reconstruction for recurrent patellar instability with or without concomitant tibial tubercle osteotomy. There were 31 patients who underwent MPFL reconstruction with tibial tubercle osteotomy and 55 patients underwent MPFL reconstruction without tibial tubercle osteotomy. Investigators collected preoperative and postoperative patient-reported outcomes, such as the KOOS domains, PROMIS, IKDC, SANE and Marx scores. Complications that needed reoperation were recorded.
Results showed no difference in preoperative outcome scores between the treatment groups. Both groups saw significant improvements in all KOOS domains; however, there were no significant differences between them. Significant improvements were seen in SANE, IKDC and PROMIS scores.
At 6 months, the Marx activity score was significantly different between the two groups. Patients who underwent tibial tubercle osteotomy had a Marx activity score of 0.79 vs. 4.61 in patients who underwent MPFL alone. There were four knees who underwent MPFL- tibial tubercle osteotomy that needed additional surgery and six knees in patients who underwent MPFL alone that needed additional surgery. The overall complication and recurrent instability rates were not significantly different in either group. – by Monica Jaramillo
Sherman SL, et al. Abstract 62. Presented at: American Orthopaedic Society for Sports Medicine Annual Meeting; July 11-14, 2019; Boston.
Disclosure: Sherman reports he has no relevant financial disclosures.