Reduction Osteotomy of the Prominent Tibial Tubercle After Osgood-Schlatter Disease.

PURPOSE: To evaluate the functional and clinical outcome of a new closing-wedge osteotomy for the prominent tibial tubercle after Osgood-Schlatter disease.

METHODS: Between 2010 and 2014, 7 consecutive adults (mean age, 28.6 years; range, 26-35 years) were treated by closing-wedge reduction osteotomy of a painful tibial tubercle. All patients had prior nonsurgical and surgical treatment. Preoperative and postoperative tubercular prominence, Caton-Deschamps index for patellar height, the Kujala Anterior Knee Pain Scale, Lysholm Knee Score as well as visual analog scale score and Tegner activity scores were recorded.

RESULTS: Mean follow-up after reduction osteotomy was 31.3 months (27-41 months). The bony prominence of the tibial tubercle was significantly reduced (mean 8 mm, P < .001) and the Caton-Deschamps index was lowered from 1.29 to 1.09 (P < .001). From preoperative to last follow-up, the Kujala Anterior Knee Pain Scale increased from 54.71 preoperative to 84.71 (P < .001); the Lysholm Knee Score improved from 72.42 to 94.14 (P < .001); the Tegner activity score increased from 3.1 to 5.7 (P < .001), whereas the visual analog scale significantly decreased from 5.8 to 1.2 (P < .001). No complications were recorded, and all patients were satisfied with clinical outcome.

CONCLUSIONS: Closing-wedge osteotomy of the tibial tubercle effectively reduced the bony prominence after Osgood-Schlatter disease and consecutively improved the outcome in terms of knee pain and function. Thus, we can recommend this procedure in selected patients.

LEVEL OF EVIDENCE: Level IV, therapeutic case series.