Understanding of intra-operative tourniquets amongst orthopaedic surgeons and theatre staff--a questionnaire study.

INTRODUCTION: Pneumatic tourniquets are used frequently in orthopaedic theatres to provide a bloodless field whilst operating on the extremities. Their use has given rise to complications and preventable damage due to over-pressurisation and prolonged application. We designed a questionnaire to assess the knowledge on tourniquet use among operating department assistants (ODAs) and specialist registrars (SpRs) in orthopaedic surgery. SUBJECTS AND METHODS: A questionnaire was constructed using set guidelines from the Association of periOperative Registered Nurses (AORN) for recommended practice of tourniquet application. This was distributed to orthopaedic registrars with varying levels of experience and ODAs from five different NHS hospitals. The unpaired, two tailed t-test was used to test for statistical significance of results. RESULTS: A total of 54 completed questionnaires were collected for analysis. The study population included 29 orthopaedic SpRs and 25 ODAs. The mean score for the orthopaedic SpRs as a group was 41.3% (SD 6.85; range, 29.0-54.8%). The mean score for the ODAs was 46.7% (SD 9.64; range, 23.3-62.9%) with a P-value of 0.024. CONCLUSIONS: Most surgeons are taught how to use pneumatic tourniquets by their senior colleagues as no formal teaching is given. Most of the complications are infrequent and preventable. However, their consequences can be devastating to the patient with medicolegal implications. Our results show suboptimal knowledge of tourniquets and their use among SpRs and ODAs. This study highlights the need for amendments in training to improve the knowledge and awareness of medical practitioners on the application and use of tourniquets to prevent adverse events and improve patient safety.

Exposure of the thyroid to radiation during routine orthopaedic procedures.

The availability and usage of portable image intensifiers has revolutionised routine orthopaedic practice. Extensive use of fluoroscopy however may result into significant radiation exposure to operating staff. An accumulated dose of 65 microSv per procedure over long exposure has been reported to increase the risk of thyroid cancer. The present prospective study aimed at measuring the scattered dose to the thyroid using an Unfors EDD dosimeter during DHS/IMHS for fractures of the neck of the femur and IM nailing for long bone fractures. In 32 procedures, the dose of 65 microSv was exceeded 13 times; 8 times during DHS/IMHS and 5 times during IMN. The average thyroid dose was 142 microSv during IMN and 55 microSv during DHS. Only 9 of the total 223 (4%) theatre personnel were using a thyroid shield in spite of its availability. These results suggest that the thyroid is frequently exposed to potentially harmful radiation during these procedures. Strict inclusion of a thyroid shield as a part of routine radiation protection is recommended.

Musculoskeletal recovery 5 years after severe injury: long term problems are common.

Five years after severe injury (ISS>15), usually involving several body regions, 158 patients were assessed regarding their musculo-skeletal recovery. An earlier paper in this journal about this study 'Injury 29 (1998) 55' showed that when considering the main body regions causing long term disability, 45% were due to bony injuries to the extremities, pelvis and shoulder girdle. We analysed these body areas regarding the degrees of disability and pain and also for problems with activities of daily living, work, sport and mobility. All patients with unstable pelvic fractures had moderate or severe persisting disability and chronic pain. Functional problems with activities of daily living, work, sport and mobility were reported in 28, 86, 100 and 100% of patients, respectively. Patients with stable pelvic fractures had persisting disability in 54% of cases, which was mild in 42% and moderate or severe in 12% of patients. In patients with stable pelvic fractures 54% had chronic pain, which was mild in 24% of patients and moderate or severe in 30% of patients. Functional problems with mobility, work and sport were reported in 38, 19 and 19% of patients, respectively. Patients with shoulder girdle injuries had persisting disability in 48% of cases which was mild in 24% and moderate or severe in 24% of patients. In patients with shoulder girdle injuries 45% had chronic pain, which was mild in 14% and moderate or severe in 31% of patients. Functional problems with activities of daily living, work, sport and mobility were reported in 38, 28, 38 and 38% of patients respectively. Patients with upper limb fractures had persisting disability in 66% of cases which was mild in 34% of patients and moderate or severe in 32% of patients. Chronic pain was present in 62% of these cases, which was mild in 32% and moderate or severe in 34% of patients. Functional problems with activities of daily living, work, sport and mobility were reported in 31, 45, 48 and 66% of patients, respectively. Patients with lower limb fractures had persisting disability in 84% of cases, which was mild in 16% and moderate or severe in 68% of patients. Chronic pain was present in 80% of these cases, which was mild in 24% and moderate or severe in 56% of patients. Functional problems with activities of daily living, work, sport and mobility were reported in 40, 56, 64 and 76% of patients, respectively. Patients with multiple extremity injuries or combinations of pelvic and lower extremity or shoulder girdle and upper extremity injuries were much more likely to have continuing disability compared with those sustaining single bone injuries of that limb. This high disability rate reflecting treatment in 1989-1990, raises the question of whether our present policy of earlier and better fixation and rehabilitation of fractures in severely injured patients (ISS>15) can improve these results.