Improved technology and innovation has led to more effective and efficient strategies that contribute to a smoother and quicker postoperative course. The use of peripheral nerve blocks in conjunction with a variety of systemic analgesics has reduced post-operative pain compared to older modalities. Specifically, the adductor canal and IPACK blocks have become increasingly popular due to their analgesic efficacy and muscle sparing characteristics. Outpatient knee arthroplasty is becoming a reality with advancements in surgical pathways that incorporate these newer modalities with an emphasis on multidisciplinary coordination.
Summary
We performed a pre‐procedure ultrasound examination of the spine on 60 patients undergoing lower extremity orthopaedic surgery under spinal anaesthesia. We hypothesised that the inability to identify the posterior longitudinal ligament or vertebral body easily with ultrasound would be associated with difficulty placing a spinal anaesthetic. Clinicians blinded to the ultrasound scan performed the injections using the traditional landmark technique. The spinal procedure was videotaped and subsequently reviewed by independent investigators. We defined procedure difficulty by total procedure time (> 400 s) and number of needle passes (≥ 10) required to achieve return of cerebrospinal fluid, or abandonment of the procedure due to unsuccessful dural puncture. When images of the posterior longitudinal ligament were poor (low score group), the mean (SD) number of passes was 21.2 (30.6), compared with 4.8 (7.5) with good ultrasound images (high score group) (p < 0.01). The mean (SD) time for placement was 420 (300) s in the low score group vs 176 (176) s in the high score group (p < 0.01).
You can respond to this article at http://www.anaesthesiacorrespondence.com
The failure rate and quality-compromising behaviors identified in this study challenge the generalized assumption that performing a subarachnoid block in the orthopedic population is a simple procedure. The number and nature of the combined failed and difficult subarachnoid blocks suggest the need for quality improvement. Further research is needed to assess whether the use of image guidance may be a possible solution to navigate difficult anatomical pathology and confirm correct needle and drug placement.
Epidural blood patches for the management of PDPH, especially PDPH associated with CN palsies, should be administered as soon as the diagnosis of PDPH is made with lower volumes of autologous blood (< or =20 mL) to assure the best treatment outcomes.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.