Tourniquet Use Is Associated With Reduced Blood Loss and Fewer Reoperations in Aseptic Revision Total Knee Arthroplasty

Orthopaedic Surgery in the Jehovah's Witness Patient: Clinical, Ethical, and Legal Considerations

➢ Jehovah's Witnesses refuse allogeneic blood products based on religious beliefs that create clinical, ethical, and legal challenges in orthopaedic surgery, requiring detailed perioperative planning and specific graft selection.➢ Detailed perioperative planning is particularly important for procedures with high intraoperative blood loss.➢ Graft selection must align with Jehovah's Witnesses patients' religious beliefs, with options including autografts, allografts, and synthetic materials; this requires shared decision-making between the patient and surgeon.➢ A multidisciplinary approach, integrating medical, ethical, and religious considerations, ensures optimal care, with innovative techniques and open dialogue being key to successful outcomes.

Summary of the best evidence for the safe use of pneumatic tourniquet in limb surgery

PURPOSE

To retrieve, evaluate, and summarize the best available evidence regarding the safe use of pneumatic tourniquet in patients undergoing Limb surgery, providing guidance for preoperative assessment, operation methods and precautions, complication prevention and treatment in clinical practice.

METHODS

Using the PIPOST tool, we formulated an evidence-based question, conducted searches in relevant Chinese and international databases and websites for clinical decisions, guidelines, evidence summaries, systematic reviews, and expert consensus on the use of limb surgical tourniquets. The search was limited to literature published until September 30, 2023. Quality assessment and evidence extraction were performed on eligible documents.

RESULTS

This study included a total of 13 articles, including 2 clinical decision-making articles, 3 guidelines, 5 expert consensus articles, 1 standard and 2 systematic reviews. A total of 34 best pieces of evidence recommendations were summarized across 10 aspects, including indications and contraindications for the use of pneumatic tourniquets, preoperative evaluation of operators, selection and placement of tourniquet cuffs, tourniquet inflation, monitoring during inflation, tourniquet deflation, common complications and prevention, equipment safety, documentation, and training and education.

CONCLUSION

The best evidence summarized in this study can provide reference for clinical medical staff to safely use pneumatic tourniquets, but in clinical practice, targeted selection and application of evidence should be combined with specific situations to improve the safety and hemostatic effect of pneumatic tourniquet use.

Embracing Digital Transformation: A Three-Cycle Audit on Improving Intraoperative Tourniquet Documentation Following BOAST (British Orthopaedic Association Standards for Trauma) Guidelines

Introduction Tourniquets are vital devices in orthopaedic surgery that aid in creating a bloodless field. While they reduce operative time and outcomes, improper use can lead to severe complications. The British Orthopaedic Association Standards for Trauma (BOAST) offers guidelines for safe intraoperative tourniquet usage, emphasising proper application and accurate documentation. With the push for a paperless National Health Service (NHS), orthopaedic units across the UK are transitioning to electronic patient records (EPR). In this audit, we aim to evaluate the impact of electronic patient records (EPR) implementation on tourniquet documentation and subsequent interventions to enhance guideline adherence. Methods This closed-loop audit evaluated 159 emergency trauma cases at a single UK-based district general hospital across three different cycles. The first cycle (n=50) was collected before the trust-wide adoption of an EPR system (EPIC HIVE). Upon collecting the second cycle (n=59), local intraoperative tourniquet usage results compared to BOAST were presented at a departmental audit meeting. A specialised smart phrase template was subsequently shared with the department and the results were re-audited in the third cycle (n=50). Statistical analyses were performed to compare the cycles. Results Following the introduction of the EPR, compliance with documentation standards (fully and partially adhered to) initially declined from 38.0% to 17.0%. Post-intervention, compliance increased to 62.0% (p=0.0005). Individual aspects of documentation revealed notable improvements, including increases in skin assessment pre- and post-tourniquet application (0% to 56% and 0% to 60%, respectively, p<0.0001), isolation method (0% to 60%, p<0.0001), exsanguination method (2% to 24%, p=0.0003), tourniquet pressure (39% to 76%, p=0.0001) and tourniquet time (59% to 94%, p=0.0001). Lower limb tourniquet pressures significantly decreased between audit cycles (mean: 287.06 vs mean: 265.91, p=0.007) while upper limb pressures remained relatively stable (mean: 236.67 vs mean: 236.56, p=0.993). No tourniquet-related complications were reported across all audit cycles. Conclusion While the introduction of new EPR systems may initially present challenges in upholding accurate operative records, the incorporation of specialised electronic templates and active staff engagement has shown to be instrumental in improving tourniquet safety and enhancing care standards.

The Influence of Tourniquet and Adductor Canal Block Use on Pain and Opioid Consumption after Total Knee Arthroplasty

Reducing pain and opioid consumption after total knee arthroplasty (TKA) is an important perioperative consideration. Though commonly used, the combined influence of tourniquets and adductor canal blocks (ACBs) on pain and opioid consumption is unknown. This study evaluated inpatient opioid consumption and pain between patients with TKA based on tourniquet and/or ACB use. Pain and opioid consumption were highest when a tourniquet, but no ACB was used, and lowest when an ACB, but no tourniquet was used - though absolute differences in pain scores were not clinically significant. Tourniquet and ACB use should be considered as part of TKA opioid-sparing protocols.

Tourniquet use in patients undergoing tumour resection and endoprosthetic reconstruction of the knee

AIMS

The aim of this study was to determine the prevalence and impact of tourniquet use in patients undergoing limb salvage surgery with endoprosthetic reconstruction for a tumour around the knee.

METHODS

We retrieved data from the Prophylactic Antibiotic Regimens in Tumor Surgery (PARITY) trial; specifically, differences in baseline characteristics, surgical details, and postoperative functional outcomes between patients who had undergone surgery under tourniquet and those who had not. A linear regression model was created to evaluate the impact of tourniquet use on postoperative Toronto Extremity Salvage Scores (TESSs) while controlling for confounding variables. A negative-binomial regression model was constructed to explore predictors of postoperative length of stay (LOS).

RESULTS

Of the 604 patients enrolled in the PARITY trial, 421 had tumours around the knee joint, of whom 225 (53%) underwent surgery under tourniquet. The tourniquet group was younger (p = 0.014), more likely to undergo surgery for a tumour of the tibia, and had shorter operating times by a mean of 50 minutes (95% confidence interval 30 to 72; p < 0.001). The adjusted linear regression model found that the use of a tourniquet, a shorter operating time, and a higher baseline TESS independently predicted better function at both three- and six-month follow-up. The negative-binomial regression model showed that tourniquet use, shorter operating time, younger age, and intraoperative tranexamic acid administration independently predicted a shorter LOS in hospital.

CONCLUSION

The results of this study show that in patients undergoing resection of a tumour around the knee and endoprosthetic reconstruction, the use of an intraoperative tourniquet is associated with a shorter operating time, a reduced length of stay in hospital, and a better early functional outcome.Cite this article: Bone Joint J 2022;104-B(10):1168-1173.