1.Effects of local infiltration of analgesia and tranexamic acid in total knee replacements: safety and efficacy in reducing blood loss and comparability to intra-articular tranexamic acid.
Harish SIVASUBRAMANIAN ; Cheryl Marise Peilin TAN ; Lushun WANG
Singapore medical journal 2024;65(1):16-22
INTRODUCTION:
The use of periarticular (PA) tranexamic acid (TXA) and its efficacy in comparison with intra-articular (IA) TXA have not been well explored in the literature. This retrospective cohort study aimed to compare the effects of IA and PA TXA with analgesic components in reducing blood loss and improving immediate postoperative pain relief and functional outcomes in patients after unilateral primary total knee arthroplasty (TKA).
METHODS:
A total of 63 patients underwent TKA, and they were divided into the IA TXA delivery group ( n = 42) and PA TXA delivery group ( n = 21). All patients were administered 1 g of TXA. They also received pericapsular infiltration consisting of 0.5 mL of adrenaline, 0.4 mL of morphine, 1 g of vancomycin, 1 mL of ketorolac and 15 mL of ropivacaine. Outcomes for blood loss and surrogate markers for immediate functional recovery were measured.
RESULTS:
Of the 63 patients, 54% were female and 46% male. The mean drop in postoperative haemoglobin levels in the PA and IA groups was 2.0 g/dL and 1.6 g/dL, respectively, and this was not statistically significant ( P = 0.10). The mean haematocrit drop in the PA and IA groups was 6.1% and 5.3%, respectively, and this was also not statistically significant ( P = 0.58). The postoperative day (POD) 1 and discharge day flexion angles, POD 1 and POD 2 visual analogue scale (VAS) scores, gait distance on discharge and length of hospitalisation stay were largely similar in the two groups.
CONCLUSION
Our study showed that both IA and PA TXA with analgesic components were equally efficient in reducing blood loss and improving immediate postoperative pain relief and functional outcomes.
Humans
;
Male
;
Female
;
Tranexamic Acid/adverse effects*
;
Arthroplasty, Replacement, Knee/adverse effects*
;
Antifibrinolytic Agents/adverse effects*
;
Retrospective Studies
;
Postoperative Hemorrhage
;
Blood Loss, Surgical/prevention & control*
;
Administration, Intravenous
;
Analgesia
;
Analgesics/therapeutic use*
;
Pain, Postoperative/drug therapy*
;
Injections, Intra-Articular
2.Comparison of oxycodone and sufentanil in patient-controlled intravenous analgesia for postoperative patients: a meta-analysis of randomized controlled trials.
Xixia FENG ; Pingliang YANG ; Zaibo LIAO ; Ruihao ZHOU ; Lu CHEN ; Ling YE
Chinese Medical Journal 2023;136(1):45-52
BACKGROUND:
Managing acute postoperative pain is challenging for anesthesiologists, surgeons, and patients, leading to adverse events despite making significant progress. Patient-controlled intravenous analgesia (PCIA) is a recommended solution, where oxycodone has depicted unique advantages in recent years. However, controversy still exists in clinical practice and this study aimed to compare two drugs in PCIA.
METHODS:
We performed a literature search in PubMed, Embase, the Cochrane Central Register of Controlled Trials, Web of Science, Chinese National Knowledge Infrastructure, Wanfang, and VIP databases up to December 2020 to select specific randomized controlled trials (RCTs) comparing the efficacy of oxycodone with sufentanil in PCIA. The analgesic effect was the primary outcome and the secondary outcome included PCIA consumption, the Ramsay sedation scale, patients' satisfaction and side effects.
RESULTS:
Fifteen RCTs were included in the meta-analysis. Compared with sufentanil, oxycodone showed lower Numerical Rating Scale scores (mean difference [MD] = -0.71, 95% confidence interval [CI]: -1.01 to -0.41; P < 0.001; I2 = 93%), demonstrated better relief from visceral pain (MD = -1.22, 95% CI: -1.58 to -0.85; P < 0.001; I2 = 90%), promoted a deeper sedative level as confirmed by the Ramsay Score (MD = 0.77, 95% CI: 0.35-1.19; P < 0.001; I2 = 97%), and resulted in fewer side effects (odds ratio [OR] = 0.46, 95% CI: 0.35-0.60; P < 0.001; I2 = 11%). There was no statistical difference in the degree of patients' satisfaction (OR = 1.13, 95% CI: 0.88-1.44; P = 0.33; I2 = 72%) and drug consumption (MD = -5.55, 95% CI: -14.18 to 3.08; P = 0.21; I2 = 93%).
CONCLUSION:
Oxycodone improves postoperative analgesia and causes fewer adverse effects, and could be recommended for PCIA, especially after abdominal surgeries.
REGISTRATION
PROSPERO; https://www.crd.york.ac.uk/PROSPERO/; CRD42021229973.
Humans
;
Oxycodone/therapeutic use*
;
Sufentanil/therapeutic use*
;
Randomized Controlled Trials as Topic
;
Pain, Postoperative/drug therapy*
;
Drug-Related Side Effects and Adverse Reactions
;
Analgesia, Patient-Controlled
3.Treatment duration of wrist-ankle acupuncture for relieving post-thyroidectomy pain: A randomized controlled trial.
Xin-Rui HAN ; Wei YUE ; Hui-Chao CHEN ; Wei HE ; Jiang-He LUO ; Shan-Xia CHEN ; Na LIU ; Ming YANG
Journal of Integrative Medicine 2023;21(2):168-175
BACKGROUND:
Treatment duration of wrist-ankle acupuncture (WAA) is uncertain for post-thyroidectomy pain relief.
OBJECTIVE:
This study evaluated the effect of different WAA treatment duration on post-operative pain relief and other discomforts associated with thyroidectomy.
DESIGN, SETTING, PARTICIPANTS AND INTERVENTION:
This randomized controlled trial was conducted at a single research site in Guangzhou, China. A total of 132 patients receiving thyroidectomy were randomly divided into the control group (sham WAA, 30 min) and three intervention groups (group 1: WAA, 30 min; group 2: WAA, 45 min; group 3: WAA, 60 min), with group allocation ratio of 1:1:1:1. Acupuncture was administered within 1 hour of leaving the operating room.
OUTCOMES AND MEASURES:
Primary outcome was patients' pain at the surgical site assessed by visual analogue scale (VAS) at the moment after acupuncture treatment (post-intervention). Secondary outcomes included the patients' pain VAS scores at 6, 12, 24, 48 and 72 h after the thyroidectomy, the 40-item Quality of Recovery (QoR-40) score, the grade of post-operative nausea and vomiting (PONV), and the use of additional analgesic therapy.
RESULTS:
The adjusted mean difference (AMD) in VAS scores from baseline to post-intervention in group 1 was -0.89 (95% confidence interval [CI], -1.02 to -0.76). The decrease in VAS score at post-intervention was statistically significant in group 1 compared to the control group (AMD, -0.43; 95% CI, -0.58 to -0.28; P < 0.001), and in groups 2 and 3 compared to group 1 (group 2 vs group 1: AMD, -0.65; 95% CI, -0.81 to -0.48; P < 0.001; group 3 vs group 1: AMD, -0.66; 95% CI, -0.86 to -0.47; P < 0.001). The VAS scores in the four groups converged beyond 24 h after the operation. Fewer patients in group 2 and group 3 experienced PONV in the first 24 h after operation. No statistical differences were measured in QoR-40 score and the number of patients with additional analgesic therapy.
CONCLUSION
Compared with the 30 min intervention, WAA treatment with longer needle retention time (45 or 60 min) had an advantage in pain relief within 6 h after surgery. WAA's analgesic effect lasted for 6-12 h post-operatively. Please cite this article as: Han XR, Yue W, Chen HC, He W, Luo JH, Chen SX, Liu N, Yang M. Treatment duration of wrist-ankle acupuncture for relieving post-thyroidectomy pain: A randomized controlled trial. J Integr Med. 2023; 21(2): 168-175.
Male
;
Humans
;
Ankle
;
Wrist
;
Duration of Therapy
;
Thyroidectomy
;
Postoperative Nausea and Vomiting/drug therapy*
;
Acupuncture Therapy
;
Analgesics/therapeutic use*
;
Pain/drug therapy*
4.Low-level laser acupuncture reduces postoperative pain and morphine consumption in older patients with total knee arthroplasty: A randomized placebo-controlled trial.
Chiung-Hui HUANG ; Mei-Ling YEH ; Fang-Pey CHEN ; Daphne WU
Journal of Integrative Medicine 2022;20(4):321-328
BACKGROUND:
Patients commonly develop postoperative pain after total knee arthroplasty (TKA). Acupuncture-related techniques and low-level laser therapy could be beneficial for pain management for older individuals.
OBJECTIVE:
To examine the effect of low-level laser acupuncture (LA) in reducing postoperative pain, pain-related interference in daily life, morphine consumption, and morphine-related side effects in older patients with knee osteoarthritis who underwent TKA.
DESIGN, SETTING, PARTICIPANTS AND INTERVENTION:
A single-blind randomized placebo-controlled trial was conducted. Patients (N = 82) were recruited and randomly assigned via a computer-generated list to the LA group or a placebo group. The LA group received low-level laser therapy at Sanyinjiao (SP6), Taixi (KI3), Kunlun (BL60), Fengshi (GB31), Futu (ST32) and Neiguan (PC6) after TKA, while the placebo acupuncture group received the same treatment procedure without laser energy output.
MAIN OUTCOME MEASURES:
The primary outcome was postoperative pain intensity, and it was measured at baseline and hours 2, 6, 10, 24, 48 and 72 after TKA. The secondary outcomes, including relative pain, postoperative pain-related interference in daily life and morphine consumption, were measured at hours 24, 48 and 72 after TKA.
RESULTS:
Generalized estimating equations revealed significant between-group differences in pain intensity (P = 0.01), and trend differences in pain intensity for the LA group starting at hours 10 to 72 (P < 0.05) and morphine consumption at hours 48 and 72 (P < 0.05). The changes in pain-related interference in daily life were significant (P < 0.05) at 72 h, with the exception of the parameters for worst pain, mood, and sleep. Nausea and vomiting side effects from morphine had significant between-group differences at hours 10 and 24 (P < 0.05).
CONCLUSION:
Low-level LA gradually reduced older patients' postoperative pain intensity and morphine consumption within the first 72 h after their TKA for osteoarthritis. Low-level LA may have benefits as an adjuvant pain management technique for clinical care.
TRIAL REGISTRATION
ClinicalTrials.gov registration number NCT03995446.
Acupuncture Therapy
;
Aged
;
Analgesics, Opioid/therapeutic use*
;
Arthroplasty, Replacement, Knee/adverse effects*
;
Double-Blind Method
;
Humans
;
Morphine/therapeutic use*
;
Pain, Postoperative/drug therapy*
;
Single-Blind Method
5.Using a consensus acupoints regimen to explore the relationship between acupuncture sensation and lumbar spinal postoperative analgesia: A retrospective analysis of prospective clinical cooperation.
Yen-Lin CHAO ; Yi-Ai RAU ; Hong-Sheng SHIUE ; Jiun-Lin YAN ; Yuan-Yun TANG ; Shao-Wen YU ; Bo-Yan YEH ; Yen-Lung CHEN ; Tsung-Hsien YANG ; Shu-Chen CHENG ; Yi-Wen HSIEH ; Hsin-Chia HUANG ; Fu-Kuang TSAI ; Yu-Sheng CHEN ; Geng-Hao LIU
Journal of Integrative Medicine 2022;20(4):329-337
OBJECTIVE:
This study evaluated the effectiveness of acupuncture treatment on postoperative pain in patients with degenerative lumbar spine disease, and explored the relationship between the postoperative analgesic effect of acupuncture and the sensation of acupuncture experienced by the patients.
METHODS:
This retrospective study analyzed the medical records of 97 patients who had undergone an operation by the same surgeon due to degenerative lumbar disease. These patients were divided into acupuncture group (n = 32), patient-controlled analgesia (PCA) group (n = 27), and oral analgesia group (n = 38) according to the different postoperative analgesic methods. During their hospitalization, patients completed daily evaluations of their pain using a visual analogue scale (VAS), and injection times of supplemental meperidine were recorded. Also, the Chinese version of the Massachusetts General Hospital Acupuncture Sensation Scale (C-MASS) was used in the acupuncture group.
RESULTS:
Each of the three treatment groups showed significant reductions in postoperative pain, as shown by reduced VAS scores. The acupuncture group, however, had less rebound pain (P < 0.05) than the other two groups. Both the acupuncture and PCA groups experienced acute analgesic effects that were superior to those in the oral analgesia group. In addition, the higher the C-MASS index on the second day after surgery, the lower the VAS score on the fourth day after surgery. There was also a significant difference in the "dull pain" in the acupuncture sensation.
CONCLUSION
The results demonstrated that acupuncture was beneficial for postoperative pain and discomfort after simple surgery for degenerative spinal disease. It is worth noting that there was a disproportionate relevance between the patient's acupuncture sensation and the improvement of pain VAS score.
Acupuncture Points
;
Acupuncture Therapy
;
Analgesia/methods*
;
Analgesics/therapeutic use*
;
Consensus
;
Humans
;
Pain, Postoperative/drug therapy*
;
Prospective Studies
;
Retrospective Studies
;
Sensation
6.Effect of dexamethasone combined with oxybuprocaine hydrochloride gel on prevention of postoperative sore throat after nasal endoscopy.
Cheng Mei SHI ; Xue Dong WANG ; You Kun LIU ; Ying DENG ; Xiang Yang GUO
Journal of Peking University(Health Sciences) 2022;54(2):289-293
OBJECTIVE:
To explore the effectiveness and feasibility of dexamethasone combined with oxybuprocaine hydrochloride gel on the prevention of postoperative sore throat after nasal endoscopy.
METHODS:
In the study, 60 patients with American Society of Anesthesiologist (ASA) physical statuses Ⅰ to Ⅱ, aged 18 to 72 years, scheduled for elective nasal endoscope surgery under general anesthesia requiring endotracheal intubation were randomly divided into dexamethasone combined with oxybuprocaine hydrochloride gel group (G group, n=30) and control group (C group, n=30). The patients in the G group received dexamethasone 0.1 mg/kg before induction and the oxybuprocaine gel was applied to the endotracheal catheter cuff and the front end within 15 cm. The patients in the C group received the same dose of saline and the saline was applied to the endotracheal catheter cuff and the front end within 15 cm. Then, all the patients in the two groups received the same induction and anesthesia maintainance. The operation time, anesthesia time, emergence time, extubation time and departure time were recorded. The intraoperative infusion volume, blood loss volume, propofol, remifentanil, rocuronium dosage were also recorded. The adverse reactions such as intraoperative hypotension, bradycardia and postoperative agitation were recorded. The postoperative sore throat score was recorded at the end of operation and 4 h, 8 h, 12 h, and 24 h after operation.
RESULTS:
Compared with the C group, the emergence time [(8.4±3.9) min vs. (10.8±4.7) min], extubation time [(8.8±3.7) min vs. (11.9±4.8) min], and departure time [(20.0±5.3) min vs. (23.0±5.8) min] were significantly shorter, and the propofol dosage [(11.8±1.8) mg/kg vs. (15.9±4.6) mg/kg], remifentanil dosage [(10.9±4.7) μg/kg vs. (14.1±3.6) μg/kg] were significantly less in the G group, and there was no difference of rocuronium dosage in the two groups. Compared with the C group the incidence of intraoperative hypotension [10%(3/30) vs. 30%(9/30)], bradycardia [16.7%(5/30) vs. 20%(6/30)] and postoperative agitation [6.7%(2/30) vs. 23.3%(7/30)] were significantly lower in the C group. The postoperative sore throat score at the end of operation, 4 h, 8 h, 12 h and 24 h after operation in the G group were significantly lower than in the C group respectively [0 (0, 1) vs. 1 (1, 2), 0 (0, 0) vs. 1 (1, 2), 0 (0, 0) vs. 1 (1, 2), 0 (0, 0) vs. 1 (0.75, 1), 0 (0, 0) vs. 1 (0, 1)].
CONCLUSION
Dexamethasone combined with oxybuprocaine hydrochloride gel was effective and feasible on the prevention of postoperative sore throat after nasal endoscopy.
Adolescent
;
Adult
;
Aged
;
Bradycardia/drug therapy*
;
Dexamethasone/therapeutic use*
;
Endoscopy/adverse effects*
;
Humans
;
Hypotension/drug therapy*
;
Intubation, Intratracheal/adverse effects*
;
Middle Aged
;
Pain/drug therapy*
;
Pharyngitis/prevention & control*
;
Postoperative Complications/prevention & control*
;
Procaine/analogs & derivatives*
;
Propofol
;
Remifentanil
;
Rocuronium
;
Young Adult
7.Feasibility study on local infiltration anesthesia for postoperative analgesia in patients with hallux valgus.
De-Hai KONG ; Yong-Jie ZHAO ; Guo-Feng GUAN ; Ming-Ming DENG ; Gang YIN ; Guang-Chao SUN
China Journal of Orthopaedics and Traumatology 2021;34(12):1182-1185
OBJECTIVE:
To evaluate the clinical efficacy of local infiltration anesthesia of ropivacaine combined with compound betamethasone for postoperative analgesia in patients with hallux valgus.
METHODS:
From September 2019 to December 2020, 48 patients with hallux valgus were treated surgically. According to different postoperative analgesia methods, the patients were divided into combined local infiltration group and intravenous analgesia pump group. There were 24 cases, in the combined local infiltration group including 2 males and 22 females;the age ranged from 21 to 78 years old, with an average of (58.3±7.7) years old;soft tissue release and chevron osteotomy were performed in 15 cases and metatarsophalangeal joint fusion in 9 cases;immediately after operation, 20 ml of ropivacaine combined with compound betamethasone mixed diluent was used for local infiltration anesthesia once. There were 24 patients in intravenous analgesia pump group, including 3 males and 21 females;the age ranged from 23 to 81 years old, with an average of(56.8±8.3) years old;soft tissue release and Chevron osteotomy were performed in 17 cases and metatarsophalangeal joint fusion in 7 cases;immediately after operation, intravenous analgesia pump was used for analgesia. The basic flow was 2 ml / h;the self control dose was 0.5 ml;and the locking time was 15 min. Visual analogue scale (VAS) was recorded at 12, 24, 48 and 72 hours after operation;and the VAS was recorded at 24 hours after operation. The occurrence of adverse drug reactions at 0 to 12 hours, 12 to 24 hours and 24 to 48 hours after operation were recorded;and the healing of incision was recorded.
RESULTS:
All patients were followed up, and the duration ranged from 14 to 17 days, with a mean of (14.60±0.92) days. There was significantdifference in VAS at 12, 24 and 48 hours between the combined local infiltration group and the intravenous analgesia pump group(
CONCLUSION
Compared with intravenous analgesia pump group, ropivacaine combined with compound betamethasone can significantly reduce postoperative wound pain without increasing adverse drug reactions, and does not increase wound infection.
Adult
;
Aged
;
Aged, 80 and over
;
Analgesia
;
Anesthesia, Local
;
Bunion
;
Feasibility Studies
;
Female
;
Hallux Valgus/surgery*
;
Humans
;
Male
;
Middle Aged
;
Pain, Postoperative/drug therapy*
;
Young Adult
8.Clinical evaluation of Compound Chamomile and Lidocaine Hydrochloride Gel for postoperative hypospadias in children.
Shi-Yu ZHANG ; Ce HAN ; Hui-Xia ZHOU ; Pin LI ; Li-Fei MA ; Tian TAO ; Xiao-Guang ZHOU ; Yuan-Dong TAO ; Wei-Wei ZHU ; Yang ZHAO ; Tao GUO ; Ran ZHUO ; Xue-Xue L
National Journal of Andrology 2021;27(9):815-818
Objective:
To evaluate the clinical efficacy of Compound Chamomile and Lidocaine Hydrochloride Gel for postoperative hypospadias in children.
METHODS:
From January to December 2020, we treated 116 children with distal hypospadias in the Department of Urology, Department of Pediatrics and the Seventh Medical Center of the PLA General Hospital, 58 by primary Snodgrass urethroplasty only (the control group) and the other 58 with Compound Chamomile and Lidocaine Hydrochloride Gel smeared on the penis postoperatively in addition (the trial group). We compared the operation time and postoperative pain score, edema regression and incidence of infection between the two groups, followed by statistical analysis using T test and Chi-square test.
RESULTS:
All the operations were successfully completed by the same surgeon under general anesthesia. There were no statistically significant differences between the trial and control groups in age ([2.5 ± 0.8] vs [2.4 ± 0.6] yr, P > 0.05) or operation time ([95.6 ± 14.5] vs [97.1 ± 15.2] min, P > 0.05). No incision infection occurred in any of the cases. The pain scores at dressing removal were remarkably lower in the trial than in the control group at 2 hours (1.4 ± 1.0 vs 2.6 ± 1.3, P < 0.05), 24 hours (2.2 ± 1.3 vs 3.9 ± 1.6, P < 0.05), 48 hours (1.2 ± 0.7 vs 1.6 ± 0.9, P < 0.05) and 72 hours after surgery (2.5 ± 0.8 vs 3.7 ± 1.8, P < 0.05). Significantly more cases of edema regression were achieved in the trial than in the control group at 2 weeks postoperatively (35 vs 19, P < 0.05).
CONCLUSIONS
Compound Chamomile and Lidocaine Hydrochloride Gel can effectively relieve pain, reduce edema and accelerate edema regression after surgery in children with hypospadias, and therefore deserves wide clinical application.、.
Chamomile
;
Child, Preschool
;
Humans
;
Hypospadias/surgery*
;
Lidocaine/therapeutic use*
;
Male
;
Pain, Postoperative/drug therapy*
;
Postoperative Period
9.Dose-response Relationship of Dexmedetomidine Combined with Sufentail for Postoperative Intravenous Analgesia in Video-assisted Thoracoscopic Surgery.
Xiao Lu TAN ; Ya Yu CHEN ; Bo HU ; Qiao Mei ZHOU ; Wei Dong SHAO ; Bo XU ; Hai Ping XIAO ; Xing An ZHANG
Acta Academiae Medicinae Sinicae 2019;41(3):373-378
Objective To investigate the 50% effective dose(ED)and 95% effective dose(ED)of dexmedetomidine(DEX)combined with 0.032 μg/(kg·h)sufentanil as well as its analgesic effect for patient-controlled intravenous analgesia(PCIA)after video-assisted thoracoscopic surgery(VATS).Methods Totally 25 patients undergoing elective VATS were enrolled. DEX and 0.032 μg/(kg·h)sufentanil were used for postoperative PCIA. The loading dose of DEX was 0.048 μg/(kg·h),and the dose difference between two adjacent patients was 0.008 μg/(kg·h). The DEX dose of a current patient was determined by whether the previous patient was satisfied with postoperative analgesic effect. If the previous patient was satisfied with postoperative analgesic effect,the DEX dose of the current patient was decreased by 0.008 μg/(kg·h);and if the previous analgestic effect was not satisfactory,DEX dose of the current patient was increased by 0.008 μg/(kg·h). The study endpoint was dexmedetomidine dose was<0.008 μg/(kg· h) within 7 upper and lower cycles in 7 consecutive cases. Finally,the probability unit regression was used to estimate the ED and ED of DEX and their 95% .Results When DEX combined with 0.032 μg/(kg·h) sufentanil was used for postoperative PCIA in young patients undergoing VATS,the ED and EDof DEX were 0.0346 μg/(kg· h)[95%:0.0283-0.0408 μg/(kg·h)] and 0.0459 μg/(kg·h)[95%:0.0400-0.0880 μg/(kg·h)],respectively. No adverse reaction such as vomiting,respiratory depression,or bradycardia occurred. The average Visual Analogue Scale(VAS)scores at rest(=-5.128,=0.000)and cough(Z=-6.642,=0.000)and the Ramsay sedation score(Z=-2.335,=0.020)within 6 hours after surgery were higher than those after 6 hour.Conclusion DEX combined with 0.032 μg/(kg·h) sufentanil are effective for postoperative PCIA in patients undergoing VATS when the ED and ED are 0.0346 μg/(kg·h)and 0.0459 μg/(kg·h),respectively.
Analgesia, Patient-Controlled
;
Analgesics, Non-Narcotic
;
administration & dosage
;
therapeutic use
;
Dexmedetomidine
;
administration & dosage
;
therapeutic use
;
Dose-Response Relationship, Drug
;
Drug Therapy, Combination
;
Humans
;
Pain, Postoperative
;
drug therapy
;
Sufentanil
;
administration & dosage
;
therapeutic use
;
Thoracic Surgery, Video-Assisted
10.A randomised controlled trial comparing adductor canal block and femoral nerve block for knee arthroplasty.
Yean Chin LIM ; How Yow Kelvin QUEK ; Wai Heng Jimmy PHOO ; Chou Liang MAH ; Shumei TAN
Singapore medical journal 2019;60(3):145-149
INTRODUCTION:
Adductor canal block (ACB) is hypothesised to provide superior analgesia to femoral nerve block (FNB) for total knee arthroplasty (TKA) while preserving quadriceps strength.
METHODS:
30 patients undergoing TKA were randomised to receive either ACB or FNB. Baseline tests of quadriceps strength were performed. Ultrasound-guided blocks with 30 mL of 0.5% ropivacaine were administered before induction of general anaesthesia. Patient-controlled analgesia (morphine) was prescribed for postoperative analgesia. The primary outcome of this prospective, double-blinded, randomised controlled trial was morphine consumption (mean ± standard deviation) in the first 24 hours. Secondary outcomes were pain scores using a numeric rating scale (median and interquartile range [IQR]), quadriceps strength (% of baseline) and functional outcomes at 24 hours and 48 hours postoperatively.
RESULTS:
There was no statistically significant difference in morphine consumption at 24 hours between the ACB and FNB groups (21 ± 11 mg vs. 20 ± 12 mg; p = 0.85). No statistically significant differences were observed between the ACB and FNB groups in pain scores at 24 hours (at rest: 0 [IQR 0-2] vs. 0 [IQR 0-2]; on movement: 5 [IQR 4-8] vs. 5 [IQR 3-8]) and quadriceps strength (24 hours: 28.8% ± 26.1% vs. 26.8% ± 19.6% of baseline; 48 hours: 31.5 ± 23.1% vs. 33.7% ± 20.1% of baseline). There were also no statistically significant differences in functional outcomes and length of stay.
CONCLUSION
We found no statistically significant differences in analgesic effects, quadriceps strength or functional recovery postoperatively between ACB and FNB.
Aged
;
Aged, 80 and over
;
Analgesia, Patient-Controlled
;
methods
;
Analgesics, Opioid
;
therapeutic use
;
Anesthetics, Local
;
administration & dosage
;
Arthroplasty, Replacement, Knee
;
Double-Blind Method
;
Female
;
Femoral Nerve
;
Humans
;
Male
;
Middle Aged
;
Morphine
;
therapeutic use
;
Nerve Block
;
methods
;
Pain Management
;
methods
;
Pain Measurement
;
Pain, Postoperative
;
drug therapy
;
Prospective Studies
;
Quadriceps Muscle
;
drug effects
;
Treatment Outcome
;
Ultrasonography

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