• Clinics in Shoulder and Elbow
• /
• 제25권4호
• /
• pp.339-346
• /
• 2022

Rotator cuff tear is the most common cause of shoulder pain in middle-age and older people. Arthroscopic rotator cuff repair (ARCR) is the most common treatment method for rotator cuff tear. Early postoperative pain after ARCR is the primary concern for surgeons and patients and can affect postoperative rehabilitation, satisfaction, recovery, and hospital day. There are numerous methods for controlling postoperative pain including patient-controlled analgesia, opioid, interscalene block, and local anesthesia. Regional blocks including interscalene nerve block, suprascapular nerve block, and axillary nerve block have been successfully and commonly used. There is no difference between interscalene brachial plexus block (ISB) and suprascapular nerve block (SSNB) in pain control and opioid consumption. However, SSNB has fewer complications and can be more easily applied than ISB. Combination of axillary nerve block with SSNB has a stronger analgesic effect than SSNB alone. These regional blocks can be helpful for postoperative pain control within 48 hours after ARCR surgery.

• 대한정형외과 초음파학회지
• /
• 제5권1호
• /
• pp.50-59
• /
• 2012

정형외과 영역에서 상지와 하지의 수술을 위한 부위 마취나 통증 조절을 목적으로 한 신경 차단술에서도 근골격계 초음파의 활용도가 증가하고 있다. 하지에서 슬관절 원위부의 수술을 위해 시행하던 기존의 슬와 신경 차단술, 대퇴 신경 차단술, 근위 복재 신경 차단술, 족관절 차단술 등의 부위 마취를 초음파 유도 하에 시행함으로서 시술의 안전성뿐만 아니라 국소 마취의 성공률을 높일 수 있게 되었고, 또한 사용되는 국소 마취제의 용량도 줄일 수 있게 되었다. 수술 후 통증조절을 목적으로 한 단발적인 국소 마취 희석액 신경 주위 주사나 카테터 삽입을 통한 지속적인 국소 마취 희석액 신경주위 주사도 초음파를 이용하여 정확하게 시행할 수 있어 PCA에서 나타나는 오심, 구토 등의 부작용 없이 통증 조절을 이룰 수 있게 되었다. 이러한 초음파 유도 국소 신경 차단술에 대하여 알아보고자 한다.

• 대한정형외과 초음파학회지
• /
• 제7권1호
• /
• pp.67-75
• /
• 2014

견관절 수술을 위한 마취와 수술 후 통증 조절을 위해 적용될 수 있는 국소 신경 차단술에는 사각근간 신경 차단술, 상견갑 신경 차단술, 5번 경추 신경근 차단술 및 액와 신경 차단술 등이 있을 수 있다. 국소 신경 차단술은 통증 조절 효과는 뛰어난 것으로 보고되고 있으나 횡격 신경 마비, 기흉, 신경 손상 등의 부작용이 다수 보고되며 그 실패율도 상당하여, 부작용을 최소화하고 성공률을 높이기 위한 노력으로 초음파 유도하 중재술이 사용되고 있다. 저자들은 이와 관련된 해부학적 기초와 초음파를 이용한 국소 신경 차단 술기 등에 대하여 기술하고자 한다.

• The Korean Journal of Pain
• /
• 제4권2호
• /
• pp.186-190
• /
• 1991

Causalgia is an extremely incapacitating disease often associated with a major peripheral nerve injury, which is characterized by sustained diffuse burning pain, allodynia and hyperpathia. The condition follows traumatic nerve lesions, often combined with vasomotor and sudomotor disturbances and later trophic changes. While sympathectomy has been the classical treatment of causalgia, others nonsurgical therapies such as regional sympathetic block, IV regional sympathetic block, oral adrenolytic drugs, transcutaneous electrical nerve simulation, physical theraphy, cryotheraphy and psychotheraphy have been used. Causalgia is rare in children and early treatment is controversial because of the possibility of many different complications following aggressive treatment. This is a report of a 6-year-old girl with causalgia suffered after a right posterior tibial nerve injury following an intragluteal injection of an antipyretics. We successfully treated this syndrome with continuous epidural block using 0.5% lidocaine and no specific complication was encountered.

• 대한족부족관절학회지
• /
• 제18권3호
• /
• pp.133-136
• /
• 2014

Skin grafting is often required for diabetic ulcerative foot lesions. In skin grafting, effective regional or local anesthesia into the donor and recipient areas plays a significant role in continuous control of pain. We report on a technique of ultrasound-guided nerve block on the femoral, sciatic, and lateral femoral cutaneous nerves in large split-thickness skin grafting for ulcer of the foot and leg.

• Journal of Dental Anesthesia and Pain Medicine
• /
• 제23권4호
• /
• pp.213-220
• /
• 2023

Background: Third molar extraction is the most commonly performed minor oral surgical procedure in outpatient settings and requires regional anesthesia for pain control. Extraction of the maxillary molars commonly requires both posterior superior alveolar nerve block (PSANB) and greater palatine nerve block (GPNB), depending on the nerve innervations of the subject teeth. We aimed to study the effectiveness of PSANB alone in maxillary third molar (MTM) extraction. Methods: A sample size comprising 100 erupted and semi-erupted MTM was selected and subjected to study for extraction. Under strict aseptic conditions, the patients were subjected to the classical local anesthesia technique of PSANB alone with 2% lignocaine hydrochloride and adrenaline 1:80,000. After a latency period of 10 min, objective assessment of the buccal and palatal mucosa was performed. A numerical rating scale and visual analog scale were used. Results: In the post-latency period of 10 min, the depth of anesthesia obtained in our sample on the buccal side extended from the maxillary tuberosity posteriorly to the mesial of the first premolar (15%), second premolar (41%), and first molar (44%). This inferred that anesthesia was effectively high until the first molars and was less effective further anteriorly due to nerve innervation. The depth of anesthesia on the palatal aspect was up to the first molar (33%), second molar (67%), and lateromedially; 6% of the patients received anesthesia only to the alveolar region, whereas 66% received up to 1.5 cm to the mid-palatal raphe. In 5% of the cases, regional anesthesia was re-administered. An additional 1.8 ml PSANB was required in four patients, and another patient was administered a GPNB in addition to the PSANB during the time of extraction and elevation. Conclusion: The results of our study emphasize that PSANB alone is sufficient for the extraction of MTM in most cases, thereby obviating the need for poorly tolerated palatal injections.

• The Korean Journal of Pain
• /
• 제34권1호
• /
• pp.132-136
• /
• 2021

Local anesthetic (LA) injection outside the sheath in epineural or paraneural connective tissue is considered safe practice among regional anesthesiologists. There is limited evidence as to whether neurological complications occur if LA is injected inside the sheath (subepineural - intraneural). We performed ultrasound guided injections at the level of undivided sciatic nerve in four amputated lower limbs. In two specimens, LA was injected in epineural connective tissue (paraneural tissue) and in another two specimens by penetrating the outer nerve sheath (hyperechoic epineurium). Ultrasonography demonstrated an increase in the size of nerve and macroscopic findings revealed fascicular tracings with sub-epineural injections. Limbs were sent for histological analysis in formalin containers. Pathologist performed the analysis which demonstrated an intact perineurium and a breach in the epineurium. We conclude that sub-epineural injections are unsafe and injection should be done in paraneural tissue to ensure safety and avoid unwanted neurological sequelae after the block.

• The Korean Journal of Pain
• /
• 제29권1호
• /
• pp.1-2
• /
• 2016

• The Korean Journal of Pain
• /
• 제29권3호
• /
• pp.179-184
• /
• 2016

Background: Recently, ultrasound has been commonly used. Ultrasound-guided interscalene brachial plexus block (IBPB) by posterior approach is more commonly used because anterior approach has been reported to have the risk of phrenic nerve injury. However, posterior approach also has the risk of causing nerve injury because there are risks of encountering dorsal scapular nerve (DSN) and long thoracic nerve (LTN). Therefore, the aim of this study was to evaluate the risk of encountering DSN and LTN during ultrasound-guided IBPB by posterior approach. Methods: A total of 70 patients who were scheduled for shoulder surgery were enrolled in this study. After deciding insertion site with ultrasound, awake ultrasound-guided IBPB with nerve stimulator by posterior approach was performed. Incidence of muscle twitches (rhomboids, levator scapulae, and serratus anterior muscles) and current intensity immediately before muscle twitches disappeared were recorded. Results: Of the total 70 cases, DSN was encountered in 44 cases (62.8%) and LTN was encountered in 15 cases (21.4%). Both nerves were encountered in 10 cases (14.3%). Neither was encountered in 21 cases (30.4%). The average current measured immediately before the disappearance of muscle twitches was 0.44 mA and 0.50 mA at DSN and LTN, respectively. Conclusions: Physicians should be cautious on the risk of injury related to the anatomical structures of nerves, including DSN and LTN, during ultrasound-guided IBPB by posterior approach. Nerve stimulator could be another option for a safer intervention. Moreover, if there is a motor response, it is recommended to select another way to secure better safety.

• The Korean Journal of Pain
• /
• 제7권1호
• /
• pp.92-95
• /
• 1994

Most neoplasm of the floor of the mouth are squamous cell carcinoma. They originate from anterior midline floor of the mouth and penetrate into the sublingual gland. Invasion of the mandible is a late manifestation. Lymphatic spread is the submaxillary and subdigastric nodes and advanced lesions of them produce severe pain, The initial step in managing patients with cancer pain is the oncology therapy in the form of radiotherapy, surgery, or chemotherapy, alone or combined. When oncologic therapy is ineffective, the pain must be treated by systemic analgesic, psychologic, neurostimulating, regional analgesic,and meuroablative techniques. We successfully treated with gasserian ganglion block on the left side and mandibular nerve block on the right side with pure alcohol in the patient having severe submandibular, lower lip and tongue pain.