Risk of symptomatic venous thromboembolism associated with flying in the early postoperative period following elective total hip and knee arthroplasty.

Air travel and total joint arthroplasty (TJA) are both risk factors for venous thromboembolism (VTE). Patients are counseled against flying after surgery, however the basis for this recommendation has not been investigated and may be unfounded. A retrospective cohort of 1465 consecutive TJA patients was divided into a study population of 220 patients (15.0%) who flew home at a mean of 2.9 days after surgery (range, 1-10 days) and a control population of 1245 patients (85.0%) who did not fly. We found no differences in the rate of deep vein thrombosis, pulmonary embolism, or overall VTE between the groups, and incidence of all events was low in both groups and comparable with published data. Allowing air travel after TJA appears to be a safe practice.

Advances in functional use of sweet potato, [Ipomoea batatas (L.) Lam].

This article reviews the patents that have been presented over the past two decades related to alternative functional use of the Sweet potato, Ipomoea batatas (L.) Lam. The major categories of available patents include alternative food products such as Sweet potato chips and fries, Sweet potato ornamental products, and fuel ethanol production from Sweet potato. The majority of recent patents fall under the category of ornamental products and alternative food products, with only a few fuel ethanol products. Figure 1 shows the major categories of patented alternative products from Sweet potato.

Newer anesthesia and rehabilitation protocols enable outpatient hip replacement in selected patients.

UNLABELLED: Advancements in the surgical approach, anesthetic technique, and the initiation of rapid rehabilitation protocols have decreased the duration of hospitalization and subsequent length of recovery following elective total hip arthroplasty. We assessed the feasibility and safety of outpatient total hip arthroplasty in 150 consecutive patients. A comprehensive perioperative anesthesia and rehabilitation protocol including preoperative teaching, regional anesthesia, and preemptive oral analgesia and antiemetic therapy was implemented around a minimally invasive surgical technique. A rapid rehabilitation pathway was started immediately after surgery and patients had the option of being discharged to home the day of surgery if standard discharge criteria were met. All 150 patients were discharged to home the day of surgery, at which time 131 patients were able to walk without assistive devices. Thirty-eight patients required some additional intervention outside the pathway to resolve nausea, hypotension, or sedation prior to discharge. There were no readmissions for pain, nausea, or hypotension yet there was one readmission for fracture and nine emergency room evaluations in the three month perioperative period. This anesthetic and rehabilitation protocol allowed outpatient total hip arthroplasty to be routinely performed in these consecutive patients undergoing primary total hip arthroplasty. With current reimbursement approaches the modest savings to the hospital in length of stay may be outweighed by the additional costs of personnel, thereby making this outpatient system more expensive to implement. LEVEL OF EVIDENCE: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence.

The feasibility and perioperative complications of outpatient knee arthroplasty.

UNLABELLED: The duration of hospitalization and subsequent length of recovery after elective knee arthroplasty have decreased. We hypothesized same-day discharge following either a unicompartmental (UKA) or total knee arthroplasty (TKA) in an unselected group of patients would not result in a higher perioperative complication rate than standard-length hospitalization when following a comprehensive perioperative clinical pathway, including preoperative teaching, regional anesthesia, preemptive oral analgesia, preemptive antiemetics, and a rapid rehabilitation protocol. We prospectively followed 111 of all 121 patients who had primary knee arthroplasty completed by noon and who agreed to be followed prospectively; 25 had UKA and 86 TKA. Of the 111 patients, 104 (94%, 24 with UKA and 80 with TKA) met discharge criteria and were discharged directly to home the day of surgery. Nausea requiring additional treatment before discharge was the most common reason for a delay in discharge. There were four (3.6%) readmissions (all with TKA) and one emergency room visit without readmission (in a patient with a TKA) within the first week after surgery, while there were four subsequent readmissions (3.6%) and one additional emergency room visit without readmission within three months of surgery, all among patients undergoing TKA. There were no deaths, cardiac events, or pulmonary complications during this study. Outpatient knee arthroplasty surgery is feasible in a large percentage of patients yet early readmissions may be decreased with a prolonged hospitalization. LEVEL OF EVIDENCE: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence.