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DOI: 10.1055/s-0035-1567872
Are Locked Plates Needed for Split Depression Tibial Plateau Fractures?
Publication History
24 November 2014
20 September 2015
Publication Date:
16 November 2015 (online)
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Abstract
Displaced tibial plateau fractures often require surgical treatment and plate and screw constructs are the most common method of fixation. There has been increased usage of locking plate technology for both complex and simple fracture patterns without any evidence demonstrating their advantage. The purpose of this study was to compare the clinical use of locked versus nonlocked plating for repair of displaced Schatzker type-II (OTA Type 41B) tibial plateau fractures. Seventy-seven consecutive patients treated operatively with one of two types of plate and screw constructs in a nonrandomized fashion for Schatzker type II tibial plateau fractures and they were prospectively followed over a 5-year period. A total of 35 (45.5%) patients were treated using a locked plate and screw construct and 42 (54.5%) patients were treated with a nonlocked plate and screw construct. All patients received the same pre- and postoperative care and there was no difference in plate morphology and length between cohorts. Clinical outcomes were assessed using Short Musculoskeletal Functional Assessment (SMFA) scores, Visual Analogue Score for pain, and knee ranges of motion. Radiographic outcome was assessed with plain radiographs at all follow-up points. Implant costs for both types of constructs were calculated from hospital purchasing records. Patients were assessed at a mean period of 18.5 months (range: 12–72 months). There was no difference in demographic factors, physical examination parameters, radiographic outcomes, and SMFA scores between cohorts. In terms of cost, the cost of locked construct was $905 more than the nonlocked construct. Based on clinical outcomes and cost per implant, we found no evidence to support the routine use of locked plating for simple split depression fractures of the lateral tibial plateau. The use of standard nonlocked, precontoured implants provides adequate fixation for these fracture patterns.
IRB approval has been obtained for the data collected in this study.
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