Suitability of carbon fiber-reinforced polyetheretherketone cages for use as anterior struts following corpectomy.

OBJECTIVE Fibular allograft remains a widely used strut for corpectomy surgeries. The amount of graft material that can be packed into an allograft strut has not been quantified. Cages are an alternative to fibular allograft for fusion surgeries. The authors of this study assessed the suitability of carbon fiber-reinforced polyetheretherketone (CFRP) cages for anterior corpectomy surgeries. They further explored the parameters known to affect fusion rates in clinical practice. METHODS Six fibular allografts were tested at standard lengths. Three sets of carbon fiber cages (Bengal, DePuy Spine), each with a different footprint size but the same lengths, were tested. The allografts and cages were wrapped in adhesive, fluid-tight transparent barriers and filled with oil. The volume and weight of the oil instilled as well as the implant footprints were measured. The fibular allografts and cages were tested at 20-, 40-, and 50-mm lengths. Two investigators independently performed all measurements 5 times. Five CFRP cubes (1 × 1 × 1 cm) were tested under pure compression, and load versus displacement curves were plotted to determine the modulus of elasticity. RESULTS Significantly more oil fit in the CFRP cages than in the fibular allografts (p < 0.0001). The weight and volume of oil was 4-6 times greater in the cages. Interobserver (r = 0.991) and intraobserver (r = 0.993) reliability was excellent. The modulus of elasticity for CFRP was 16.44 ± 2.07 GPa. CONCLUSIONS Carbon fiber-reinforced polyetheretherketone cages can accommodate much more graft material than can fibular allografts. In clinical practice, the ability to deliver greater amounts of graft material following a corpectomy may improve fusion rates.

Physician Transition of Care: Benefits of I-PASS and an Electronic Handoff System in a Community Pediatric Residency Program.

BACKGROUND: Miscommunication is a leading cause of adverse events in hospitals. Optimizing the handoff process improves communication and patient safety. We sought to assess how the components of I-PASS (a mnemonic for illness severity, patient summary, action list, situational awareness with contingency planning, and synthesis by the receiver), a standardized handoff bundle, improved the quality of handoffs in a pediatric residency program based in a community hospital. METHODS: Pediatric residents in a university-affiliated community teaching hospital were observed on the pediatric inpatient floor and in the newborn nursery. One hundred resident handoffs per setting were analyzed in 3 phases, with a total of 600 handoffs assessed. Phase 1 comprised preintervention handoffs before I-PASS; phase 2, initiating I-PASS mnemonic and educational session; and phase 3, implementing a handoff tool, electronic physician handoff (EPH), into the electronic medical record. One attending physician at each setting assessed the handoff process using an 11-item survey. A resident satisfaction survey assessed the resident's experience after phase 3. RESULTS: Comparing phase 1 with phase 2, there was improved situational awareness with contingency planning (nursery: 12% to 83%, P = .001; floor: 21% to 84%, P = .001). Incidence of tangential conversation decreased in both settings (nursery: 100% to 23%, P = .001; floor: 84% to 11%, P = .001). Comparing phase 2 with phase 3, there was improvement in identification of illness severity (nursery: 62% to 99%, P = .001; floor: 41% to 64%, P = .001) and fewer omissions of important information (nursery: 14% to 0%, P = .001; floor: 33% to 17%, P = .007). A total of 93% of residents found the new EPH system to be beneficial. CONCLUSIONS: Specific components of a standardized handoff system, including a mnemonic, an educational intervention, and an EPH, improved the clarity and organization of key information in handoff.