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\"This newly revised fourth edition of The Concise Book of Muscles is a comprehensive guide to the major muscle groups. Fully illustrated with more than 500 drawings, and easy to use, this compact reference provides a complete profile for each muscle, clearly showing its origin, insertion, nerve supply, and action, the movements that use it, and, where appropriate, exercises that stretch and strengthen it. The book's distinctive quick-reference format shows students exactly how to locate and identify specific muscles, highlighting those that are heavily used and therefore subject to injury in a variety of sports and activities. Each muscle chapter now includes an overview of the gross anatomy of the body area to show bony landmarks, cross-sections of muscle layers, and points of attachment as well as a quick reference table and an overview of the nerve pathways that are most relevant. The book also includes a new chapter on the pelvic floor muscles--of particular interest to those studying or practicing yoga and Pilates--as well as a 20\"x35\" detachable muscle wall chart. \"--Amazon.com.

Laparoscopic cholecystectomy (LC) is a frequently applied minimally invasive surgery. Intraoperative access is provided with small keyhole entries on the abdominal wall. However, LC causes moderate to severe postoperative pain. The subcostal approach of TAP block was described by Hebbard et al. for postoperative analgesia especially for upper abdominal surgeries. Ultrasound-guided erector spinae plane (US-ESP) block is a novel technique targeting ventral rami, dorsal rami and rami communicantes of the spinal nerves. Single-blinded, prospective, randomized study. Tertiary university hospital, postoperative recovery room and surgical ward. Seventy-six patients (ASA I-II) were divided into two equal groups. After applying the exclusion criteria, 68 patients were included in final analysis (34 patients in ESP group and 34 in OSTAP group). Erector spinae plane block was performed in the ESP group and oblique subcostal transversus abdominis block was performed in the OSTAP group. Measurements: Postoperative tramadol consumption and pain scores between groups were compared. In addition, intraoperative fentanyl need was measured. Postoperative tramadol consumption was 139.1 ± 21.9 mg in the ESP group and 199.4 ± 27.7 mg in the OSTAP group (mean difference 60.29 mg, 95% confidence interval - 72.40 to - 48.19; p < 0.001). NRS scores at almost all time-points were lower in the ESP group according to the repeated measures analysis. Integration of AUC and Mann Whitney U test results have revealed that there was no time wise difference between ESP and OSTAP groups even though NRS scores by itself and time-wise linear area under curve scores were higher in the OSTAP group compare to ESP group. There were no differences in intraoperative fentanyl need. Ultrasound-guided ESP block reduced postoperative tramadol consumption and pain scores more effectively than OSTAP block after laparoscopic cholecystectomy surgery. •Laparoscopic cholecystectomy causes moderate to severe postoperative pain.•OSTAP block provides analgesia especially for upper abdominal surgeries.•ESP is a novel block which extends cranially and caudally over several dermatomal levels.•Both ESP and OSTAP blocks are effective for analgesia after cholecystectomy.

Introduction Effective postoperative analgesia is essential for recovery after bariatric surgery. This study examines whether T9 erector spinae plane (ESP) block provides better analgesia and recovery than subcostal transversus abdominis plane (TAP) block in patients with obesity undergoing laparoscopic sleeve gastrectomy (LSG). Methods Patients undergoing LSG were randomized to receive either ESP or TAP blocks. The primary outcome was pain intensity measured by the Numeric Rating Scale (NRS). Secondary outcomes included sensory blockade levels, opioid consumption (morphine equivalents), need for rescue analgesia, and recovery milestones. Results Among 168 patients, median age was 29.0 years (ESP) vs 31.0 years (TAP) (p = 0.135), with most being female (67.9% ESP, 65.5% TAP) (p = 0.743). Median BMI was 36.7 kg/m 2 (ESP) vs 37.1 kg/m 2 (TAP) (p = 0.819). Patients receiving ESP blocks consistently reported lower NRS scores postoperatively (p = 0.002 and p < 0.001). Sensory blockade in the ESP group was more consistent (84.5% at T6–T12), whereas the TAP group exhibited greater variability (p < 0.001). Opioid consumption within 48 h was lower in the ESP group (median reduction of 8 mg) (p < 0.001). Moreover, ESP group patients needed less rescue analgesia (p = 0.001) and demonstrated faster functional recovery (p < 0.001). Conclusions For patients with obesity undergoing LSG, ultrasound-guided ESP block at T9 enhances postoperative analgesia and accelerates recovery compared to subcostal TAP block. While the difference in NRS scores was modest, ESP’s ability to reduce opioid use and promote faster recovery highlights its clinical advantage.

To evaluate and compare the analgesic effect of ultrasound-guided erector spinae plane (ESP) block with ultrasound-guided Quadratus Lumborum Block in pediatric lower abdominal surgeries. Randomized, prospective, double-blinded trial. Operating room and surgical ward. Sixty patients, aged 1 to 7 years with ASA scores of I-II scheduled for elective lower abdominal surgery were included in the study. Patients were randomized into two groups as ESPB group and QLB group. Ultrasound guided ESP block at L1 vertebral level was performed preoperatively using 0.5 ml/kg 0.25% bupivacaine (max 20 ml) to the patients in ESPB group. And ultrasound guided QLB block with transmuscular approach was performed preoperatively using 0.5 ml/kg 0.25% bupivacaine (max 20 ml) to the patients in QLB group. Face, Legs, Activity, Cry and Consolability (FLACC) scores for pain were recorded at 0, 1, 3 and 6 h postoperatively. Analgesic requirements and time to first analgesic requirement were also recorded. Fifty-seven patients were included in the final analyses. No significant difference was determined between the groups' FLACC scores at 0, 1, 3 or 6 h postoperatively (p > 0.05). No significant difference was also determined in times to first analgesia between the groups (p > 0.05). This study shows that the ESPB provides similar postoperative analgesia to the QLB in pediatric patients undergoing lower abdominal surgery. Clinicians could decide according to their clinical experiences. https://clinicaltrials.gov/ct2/show/NCT03463382. •Erector Spinae Plane Block is a novel technique for postoperative analgesia in many indications.•Quadratus Lumborum Block is a well known analgesic technique for different pediatric surgeries.•Erector Spinae Plane Block provides similar analgesia to Quadratus Lumborum Block for pediatric lower abdominal surgeries.•Opioid sparing effect could be achieved with both Quadratus Lumborum and Erector Spinae Plane blocks in pediatric surgeries.

We compared the analgesic effects of erector spinae plane block versus quadratus lumborum block following laparoscopic nephrectomy. A randomized controlled trial. A tertiary hospital in Beijing, China. Patients scheduled for elective laparoscopic nephrectomy. A total of 110 patients were enrolled and randomized to receive either erector spinae plane block (n = 55) or quadratus lumborum block (n = 55) under ultrasound guidance. Patient-controlled sufentanil analgesia was provided after surgery. Our primary outcome was cumulative opioid consumption within 24 h after surgery. Secondary outcomes included postoperative pain intensity, subjective sleep quality, and quality of recovery. All 110 patients (mean 53 years, 57.3% female) were included in the intention-to-treat analysis. Cumulative sufentanil equivalent within 24 h was lower in patients given erector spinae plane block (median 13 μg, interquartile range 4 to 33) than in those given quadratus lumborum block (median 25 μg, interquartile range 13 to 39; median difference − 8 μg, 95% CI -15 to 0, P = 0.041). Pain intensity (0–10 range where 0 = no pain and 10 = the worst pain) at 2, 6, 12, and 24 h after surgery was lower with erector spinae plane block (at rest: median differences −1 point, all P ≤ 0.009; with movement: median differences −2 to −1 points, all P < 0.001). Subjective sleep quality on the night of surgery (the Richards-Campbell Sleep Questionnaire: 0–100 range, higher score better; median difference 12, 95% CI 2 to 23, P = 0.018) and quality of recovery at 24 h (the Quality of Recovery-15: 0–150 range, higher score better; median difference 8, 95% CI 2 to 15, P = 0.012) were better with erector spinae plane block. No procedure-related adverse events occurred. Compared with quadratus lumborum block, erector spinae plane block provided better analgesia as manifested by lower opioid consumption and pain intensity for up to 24 h after laparoscopic nephrectomy. •Quadratus lumborum block and erector spinae plane block are effective in improving analgesia in patients undergoing laparoscopic nephrectomy.•We compared the analgesic effects of quadratus lumborum block versus erector spinae plane block in this patient population.•We found that erector spinae plane block provided better analgesia than quadratus lumborum block for up to 24 h after laparoscopic nephrectomy.

Purpose of Review. Since the original publication on the quadratus lumborum (QL) block, the technique has evolved significantly during the last decade. This review highlights recent advances in various approaches for administering the QL block and proposes directions for future research. Recent Findings. The QL block findings continue to become clearer. We now understand that the QL block has several approach methods (anterior, lateral, posterior, and intramuscular) and the spread of local anesthetic varies with each approach. In particular, dye injected using the anterior QL block approach spread to the L1, L2, and L3 nerve roots and within psoas major and QL muscles. Summary. The QL block is an effective analgesic tool for abdominal surgery. However, the best approach is yet to be determined. Therefore, the anesthetic spread of the several QL blocks must be made clear.

BACKGROUND AND OBJECTIVESFascial plane blocks are rapidly emerging to provide safe, feasible alternatives to epidural analgesia for thoracic and abdominal pain. We define a new option for chest wall and upper abdominal analgesia, termed the rhomboid intercostal and subserratus plane (RISS) block. The RISS tissue plane extends deep to the erector spinae muscle medially and deep to the serratus anterior muscle laterally. We describe a 2-part proof-of-concept study to validate the RISS block, including a cadaveric study to evaluate injectate spread and a retrospective case series to assess dermatomal coverage and analgesic efficacy. METHODSFor the cadaveric portion of the study, bilateral ultrasound-guided RISS blocks were performed on 6 fresh cadavers with 30 mL of 0.5% methylcellulose with india ink. For the retrospective case series, we present 15 patients who underwent RISS block or RISS catheter insertion for heterogeneous indications including abdominal surgery, rib fractures, chest tube–associated pain, or postoperative incisional chest wall pain. RESULTSIn the cadaveric specimens, we identified staining of the lateral branches of the intercostal nerves from T3 to T9 reaching the posterior primary rami deep to the erector spinae muscle medially. In the clinical case series, dermatomal coverage was observed in the anterior hemithorax with visual analog pain scores less than 5 in patients who underwent both single-shot and continuous catheter infusions. CONCLUSIONSOur preliminary cadaveric and clinical data suggest that RISS block anesthetizes the lateral cutaneous branches of the thoracic intercostal nerves and can be used in multiple clinical settings for chest wall and upper abdominal analgesia.

This study compared the analgesic effect of single-shot erector spinae plane block (ESPB) or posterior quadratus lumborum block (QLB) versus systemic analgesia alone after laparoscopic major liver resection. This randomized controlled trial was conducted at a single referral center between August 2022 and January 2024. 114 patients undergoing laparoscopic major liver resection were randomized to one of three groups: control, ESPB, or QLB (1:1:1). The control group received systemic analgesia without regional anesthesia, whereas both ESPB and QLB groups received an additional regional anesthesia using 40 mL of 0.5 % ropivacaine. The primary outcome was cumulative opioid consumption within 24 h post-surgery. Secondary outcomes included cumulative opioid consumption, pain intensity, and recovery parameters during 72 h post-surgery. Cumulative opioid consumption (median [IQR]) within 24 h post-surgery was not significantly different among the groups (control, 35 mg [25, 53]; ESPB, 32 mg [21, 44]; QLB, 29 mg [22, 40]; adjP > 0.99). Cumulative opioid consumption at 1 and 48 h also did not significantly differ among the three groups (adjP = 0.336 and 0.732) but was significantly lower at 72 h post-surgery (adjP = 0.032). Pain at rest during the postanesthesia care unit (PACU) stay and at 48 h post-surgery was lower in ESPB and QLB versus control, while pain when coughing in both block groups was reduced only during the PACU stay. Neither ESPB nor posterior QLB resulted in a significant decrease in cumulative opioid consumption within 24 h after laparoscopic major liver resection. •ESPB and QLB failed to lower opioid consumption within 24 h after liver resection.•ESPB and QLB may support multimodal analgesia for acute pain after liver resection.•No block-related complications occurred in ESPB or QLB despite reduced liver volume.

The paravertebral spread that occurs after erector spinae plane block may be volume-dependent. This cadaveric study was undertaken to compare the extent of paravertebral spread with erector spinae plane block using different dye volumes. After randomization, twelve erector spinae plane blocks were performed bilaterally with either 10 ml or 30 ml of dye at the level of T5 in seven unembalmed cadavers except for two cases of unexpected pleural puncture using the 10 ml injection. Direct visualization of the paravertebral space by endoscopy was performed immediately after the injections. The back regions were also dissected, and dye spread and nerve involvement were investigated. A total of five 10 ml injections and seven 30 ml injections were completed for both endoscopic and anatomical evaluations. No paravertebral spread was observed by endoscopy after any of the 10-ml injections. Dye spread to spinal nerves at the intervertebral foramen was identified by endoscopy at adjacent levels of T5 (median: three levels) in all 30 ml injections. In contrast, the cases with two, four, and three out of five were stained at only the T4, T5, and T6 levels, respectively, with the 10 ml injection. Upon anatomical dissection, all blocks were consistently associated with posterior and lateral spread to back muscles and fascial layers, especially with the 30 ml injections, which showed greater dye expansion. In one 30 ml injection, sympathetic nerve involvement and epidural spread were observed at the level of the injection site. Although paravertebral spread following erector spinae plane block increased in a volume-dependent manner, this increase was variable and not pronounced. As the injectate volume increased for the erector spinae blocks, the injectate spread to the back muscles and fascial layers seemed to be predominantly increased compared with, the extent of paravertebral spread.

Background and ObjectivesTruncal blocks have a place within multimodal analgesia techniques in abdominal surgery. The quadratus lumborum block is a new abdominal truncal block used for somatic analgesia of both the upper and lower abdomen. In this prospective, double-blind, randomized study, we aimed to compare quadratus lumborum block and transversus abdominis plane block in pediatric patients undergoing lower abdominal surgery.MethodsFifty-three children undergoing unilateral inguinal hernia repair or orchiopexy surgery were randomized into 2 groups: transversus abdominis plane block and quadratus lumborum block. All blocks were performed under general anesthesia before surgery. Pain levels were assessed using an FLACC (Face, Legs, Activity, Cry, Consolability) scale.ResultsThe study included 50 patients, after excluding 3 patients who were not eligible. The number of patients who required analgesia in the first 24 hours postoperatively was significantly lower in the quadratus lumborum block group (P < 0.05). In the quadratus lumborum block group, the postoperative 30-minute and 1-, 2-, 4-, 6-, 12-, and 24-hour FLACC scores were lower compared with those of the transversus abdominis plane block group (P < 0.05). Parent satisfaction scores were higher in the quadratus lumborum block group (P < 0.05).ConclusionsThe results of this study showed that in pediatric patients undergoing unilateral inguinal hernia repair or orchiopexy the quadratus lumborum block provided longer and more effective postoperative analgesia compared with the transversus abdominis plane block.Clinical Trials Registration: The trial was registered prospectively at clinicaltrials.gov (NCT02715999).