Platelet-rich plasma does not decrease blood loss in total knee arthroplasty.

This study was designed to assess the use of platelet-rich plasma (PRP) during primary total knee arthroplasty (TKA). The authors hypothesized that this would result in less blood loss and greater hemoglobin and hematocrit levels at discharge and would potentially decrease the length of hospital stay. Leukocyte rich PRP was used during the procedure and at wound closure. Two surgeons performed all procedures in a similar fashion. Two different TKA implants were used. Each surgeon used the same implant throughout the study. A limited medial parapatellar approach was used and drains were used at closure. No tranexamic acid preparations were used. Continuous passive motion machines were used in all patients during their hospital stay. A total of 102 consecutive TKAs were performed. The study group (n=46) consecutively received the PRP injections during the TKA, whereas the control group (n=47) did not. Hemoglobin and hematocrit levels were obtained pre- and postoperatively. Estimated blood loss was recorded during surgery, and the auto-collection reinfusion drain system output was measured. The length of hospital stay was collected and recorded. The study showed that hemoglobin and hematocrit levels were not different when comparing study and control groups. Age and sex differences were insignificant. Finally, no statistical difference was seen for the estimated blood loss and hospital stay between the 2 groups. Platelet-rich plasma use during TKA does not decrease hospital stay or reduce estimated blood loss in the perioperative period.

Opportunities for increasing human papillomavirus vaccine provision in school health centers.

BACKGROUND: Uptake of human papillomavirus (HPV) vaccine remains low among adolescents in the United States. We sought to assess barriers to HPV vaccine provision in school health centers to inform subsequent interventions. METHODS: We conducted structured interviews in the fall of 2010 with staff from all 33 school health centers in North Carolina that stocked HPV vaccine. RESULTS: Centers had heterogeneous policies and procedures. Out-of-pocket costs for children and youth to receive privately purchased HPV vaccine were a key barrier to providing HPV vaccine within school health centers. Other barriers included students not returning consent forms, costs to clinics of ordering and stocking privately purchased HPV vaccine, and difficulty using the statewide immunization registry. Most (82%) school health centers were interested in hosting interventions to increase HPV vaccine uptake, especially those that the centers could implement themselves, but many had limited staff to support such efforts. Activities rated as more likely to raise HPV vaccine uptake were student incentives, parent reminders, and obtaining consent from parents while they are at school (all ps < .05). CONCLUSIONS: Although school health centers reported facing several key barriers to providing HPV vaccine, many were interested in partnering with outside organizations on low-cost interventions to increase HPV vaccine uptake among adolescents.