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Biomedical subjects

Jack M Bert

Publications and source records attributed to Jack M Bert.

11 recordsLinked to original sources
PubMed2007

Antibiotic prophylaxis for arthroscopy of the knee: is it necessary?

PURPOSE: Our purpose was to determine the incidence of infection after routine arthroscopic meniscectomy of the knee with and without preoperative prophylactic intravenous antibiotics. METHODS: A retrospective review of 3,231 arthroscopic knee surgeries was performed at a physician-owned in-office ambulatory surgery center over a 3-year period, of which 2,780 were arthroscopic meniscectomies. The cases were evaluated with respect to the incidence of deep infection as evidenced by a positive joint aspirate. Approximately 30% of the patients had prophylactic intravenous antibiotics within 1 hour before the arthroscopic procedure. RESULTS: The infection rate was 0.15% in those patients who received antibiotics and 0.16% in those who did not receive antibiotics (P = .59). CONCLUSIONS: The results of this study confirm that there is no value in administering antibiotics before routine arthroscopic meniscectomy to prevent joint sepsis. LEVEL OF EVIDENCE: Level III, retrospective comparative study.

Adolescent↗
PubMed2005

Unicompartmental knee replacement.

Because of the resurgence in popularity of unicompartmental knee arthroplasty, primarily as a result of the mini-incision technique, it is important to understand the advantages and disadvantages of this procedure compared with total knee arthroplasty and upper tibial osteotomy, as well as the indications and contraindications for this procedure.

Age Factors↗
PubMed2003

Effect of radiation, heat, and aging on in vitro wear resistance of polyethylene.

Radiation cross-linking increases the wear resistance of polyethylene used in total hip replacement. Radiation also generates residual free radicals, which are detrimental to long-term properties of polyethylene. Two approaches are used to stabilize the residual free radicals and terminally sterilize the components. One is postirradiation annealing with gas sterilization and the other is postirradiation melting with gamma sterilization in nitrogen. The hypothesis of the current study is that postirradiation annealing followed by gamma sterilization in nitrogen will result in more free radicals in polyethylene than gamma sterilization either in air or in nitrogen alone. To test this hypothesis, concentration of residual free radicals was quantified in polyethylene that was annealed and gamma sterilized in nitrogen and control polyethylenes gamma sterilized in air versus in nitrogen. Three crosslinked polyethylenes that were melted and gas sterilized also were included in the study. The effects of residual free radicals were studied by accelerated aging. Oxidation levels and weight loss in bidirectional pin-on-disk tests were determined before and after aging. Polyethylene that was subjected to postirradiation annealing and gamma sterilization resulted in 58% more residual free radicals than control polyethylenes. Weight loss of the annealed polyethylene increased by 16-fold on accelerated aging and had three times higher oxidation levels than that measured in control polyethylenes after aging. In contrast, polyethylenes that were stabilized with postirradiation melting and terminally gas sterilized showed no detectable residual free radicals. Accelerated aging did not affect the weight loss and oxidation levels of melted polyethylenes.

Free Radicals↗
PubMed2002

Making your orthopedic office profitable through the addition of ancillary services.

With the precipitous decline of orthopedic reimbursement over the past six years, it will be critical to the success of the majority of orthopedic groups to improve their revenue stream in the future. This will involve improving management, reducing overhead, and adding ancillary services to obtain facility fee revenue. Ancillary service possibilities for the orthopedist include an in-office surgicenter with a pain center, MRI, physical therapy with orthotics and braces, occupational health department, pharmacy, and independent medical examination company.

Ambulatory Care Facilities↗
PubMed2002

The efficient, enjoyable, and profitable orthopedic practice.

For the practicing orthopedist to achieve his personal practice goals of developing an efficient, enjoyable, profitable orthopedic practice, he must commit himself to restructuring his practice environment. This restructuring involves bringing in-house as many ancillary services as the practice can support, creating efficiencies in the clinic and surgical practice, and increasing the size of the group to attempt to exert some control of the payers in the marketplace. By doing so, the orthopedist will improve the quality of his practice, increase his income, and dramatically improve the quality of his life.

Ambulatory Care Facilities↗
PubMedDate not supplied

Office ambulatory surgery centers: creation and management.

Among orthopaedic surgeons, the popularity of in-office ambulatory surgery has steadily increased. Changing practice patterns, including utilization of office surgery centers, have resulted in improved efficiency and increased revenue. However, accurate feasibility and market analyses are necessary before considering the addition of a surgery center to an orthopaedic practice. The legal requirements to operate a center include state licensure, Medicare certification, and accreditation. In addition, approved construction design and effective operations management are essential.

Ambulatory Care Facilities↗