• Archives of Plastic Surgery
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• 제49권6호
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• pp.769-772
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• 2022

Femoral nerve injuries are devastating injuries that lead to paralysis of the quadriceps muscles, weakening knee extension to prohibit ambulation. We report a devastating case of electrical injury-induced femoral neuropathy, where no apparent site of nerve disruption can be identified, thus inhibiting the traditional choices of nerve reconstruction such as nerve repair, grafting, or transfer. Concomitant spinal cord injury resulted in spastic myopathy of the antagonist muscles that further restricted knee extension. Our strategy was to perform (1) supercharge end-to-side technique (SETS) to augment the function of target muscles and (2) fractional tendon lengthening to release the spastic muscles. Dramatic postoperative improvement in passive and active range of motion highlights the effectiveness of this strategy to manage partial femoral nerve injuries.

• Archives of Plastic Surgery
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• 제33권4호
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• pp.510-513
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• 2006

Purpose: The Rectus abdominis muscle free flap is utilized in various reconstruction surgeries due to easiness in harvesting, consistency of vascular pedicle and reduced donor site morbidity. But rarely, femoral nerve injury during rectus abdominis harvesting can be resulted. We report a case of femoral nerve injury after rectus muscle harvesting and discuss the injury mechanism with the follow-up process of this injury. Methods: To reconstruct the defect of middle cranial base after wide excision of cystic adenocarcinoma of the external ear, rectus muscle free flap was havested in usual manner. To achieve a long vessel, inferior epigastric artery was dissected to the dividing portion of femoral artery and cut. Results: One week after the surgery, the patient noted sensory decrease in the lower leg, weakness in muscle strength, and disabilities in extension of the knee joint resulting in immobilization. EMG and NCV results showed no response on stimulation of the femoral nerve of the left leg, due to the defects in femoral nerve superior to the inguinal ligament. With routine neurologic evaluations and physical therapy, on the 75th day after the operation, the patient showed improvement in pain, sensation and muscle strength, and was able to move with walking frame. In 6 months after the operation, recovery of the muscle strength of the knee joint was observed with normal flexion and extension movements. Conclusion: Rarely, during dissection of the inferior epigastric artery, injuries to the femoral nerve can be resulted, probably due to excessive traction or pressure from the blade of the traction device. Therefore, femoral nerve injury can be prevented by avoiding excessive traction during surgery.

• 대한정형외과스포츠의학회지
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• 제11권2호
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• pp.92-95
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• 2012

장골근 파열은 매우 드물게 발생하는 손상으로 고에너지 외상이나 혈액 응고 기능 장애, 항혈액응고제 사용자, 혈우병 환자 등 출혈경향이 있는 환자에서 저에너지 손상을 받는 경우에 발생할 수 있다. 장골근의 파열로 인한 혈종의 압박에 의해 발생한 대퇴 신경 마비가 국내에도 드물게 보고된 바가 있다. 자기공명영상 검사로 병변 부위를 확진하고 신경전도 검사 및 근전도 검사로 대퇴신경 마비의 범위를 평가할 수 있고 혈액응고 기능에 문제가 있거나 출혈경향이 있는 환자를 선별하기 위해 반드시 혈액학적인 검사가 선행되어야 한다. 저자들은 정상적인 32세 남자가 축구 경기 도중 공을 차는 동작에서 발생한 장골근 파열 및 혈종의 압박으로 인한 부분적인 대퇴신경 마비의 증례를 경험하고 6개월간 추시 관찰하였으며, 양호한 결과를 얻었기에 문헌고찰과 함께 보고하는 바이다.

• Journal of Trauma and Injury
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• 제28권3호
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• pp.87-90
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• 2015

Purpose: We evaluated the efficacy of ultrasound-guided lower extremity nerve block in trauma patients. Methods: From July 2013 to April 2014, 17 patients with multiple trauma had lower extremity nerve block for immediate management of open wound in the lower extremity. We evaluated the patient satisfaction of the anesthesia and any complications related to the block. Results: During the lower extremity nerve block, incomplete nerve block occurred in one patient. This is the second case, the reason for this was the lack of technique. There was no anesthetic complications. Conclusion: Ultrasound-guided lower extremity nerve block in trauma patients is an effective anesthesia technique in the immediate management of open wound in lower extremities.

• The Korean Journal of Physiology and Pharmacology
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• 제21권2호
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• pp.145-152
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• 2017

Remote ischemic preconditioning (RIPC) is an intrinsic phenomenon whereby 3~4 consecutive ischemia-reperfusion cycles to a remote tissue (non-cardiac) increases the tolerance of the myocardium to sustained ischemia-reperfusion induced injury. Remote ischemic preconditioning induces the local release of chemical mediators which activate the sensory nerve endings to convey signals to the brain. The latter consequently stimulates the efferent nerve endings innervating the myocardium to induce cardioprotection. Indeed, RIPC-induced cardioprotective effects are reliant on the presence of intact neuronal pathways, which has been confirmed using nerve resection of nerves including femoral nerve, vagus nerve, and sciatic nerve. The involvement of neurogenic signaling has been further substantiated using various pharmacological modulators including hexamethonium and trimetaphan. The present review focuses on the potential involvement of neurogenic pathways in mediating remote ischemic preconditioning-induced cardioprotection.

• 대한정형외과 초음파학회지
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• 제3권2호
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• pp.74-78
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• 2010

정형외과 영역에서 근골격계 초음파의 활용 범위가 넓어짐에 따라 슬와부 신경 차단(좌골 신경 차단)이나 대퇴 신경 차단(또는 복재 신경 차단)이 초음파를 이용하여 신경 손상이나 불완전 마취에 대한 걱정없이 쉽고, 안전하게 시행될 수 있게 되었다. 그로 인하여 족부 수술 뿐만 아니라 족관절 및 하퇴부의 정형외과적 수술이 전신 마취나 척추 마취의 부담없이 시행될 수 있게 되었다. 이러한 초음파 유도 대퇴좌골 신경 차단에 대한 자세한 술기를 120예 이상의 경험을 바탕으로 보고하고자 한다.

• 대한의용생체공학회:의공학회지
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• 제32권2호
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• pp.165-176
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• 2011

The femoral nerve innervates the quadriceps muscles and its dermatome supplies anteromedial thigh and medial foot. Paralysis of the quadriceps muscles due to the injury of the femoral nerve results in disability of the knee joint extension and loss of sensory of the thigh. A child could walk independently even though he had injured his femoral nerve severely due to the penetrating wound in the medial thigh. We measured and analyzed his gait performance in order to find the mechanisms that enabled him to walk independently. The child was eleven-year-old boy and he could not extend his knee voluntarily at all during a month after the injury. His gait analysis was performed five times (GA1~GA5) for sixteen months. His temporal-spatial parameters were not significantly different after the GA2 or GA3 test, and significant asymmetry was not observed except the single support time in GA1 results. The Lower limb joint angles in affected side had large differences in GA1 compared with the normal normative patterns. There were little knee joint flexion and extension motion during the stance phase in GA1 The maximum ankle plantar/dorsi flexion angles and the maximum knee extension angles were different from the normal values in the sound side. Asymmetries of the joint angles were analyzed by using the peak values. Significant asymmetries were found in GA1with seven parameters (ankle: peak planter flexion angle in stance phase, range of motion; ROM, knee: peak flexion angles during both stance and swing phase, ROM, hip: peak extension angle, ROM) while only two parameters (maximum hip extension angle and ROM of hip joint) had significant differences in GA5. The mid-stance valleys were not observed in both right and left sides of vertical ground reaction force (GRF) in the GA1, GA2. The loading response peak was far larger than the terminal stance peak of vertical ground reaction curve in the affected side of the GA3, GA4, GA5. The measured joint moment curves of the GA1, GA2, GA3 had large deviations and all of kinetic results had differences with the normal patterns. EMG signals described an absence of the rectus femoris muscle activity in the GA1 and GA2 (affected side). The EMG signals were detected in the GA3 and GA4 but their patterns were not normal yet, then their normal patterns were detected in the GA5. Through these following gait analysis of a child who had selective injuries on the knee extensor muscles, we could verify the actual functions of the knee extensor muscles during gait, and we also could observe his recovery and asymmetry with quantitative data during his rehabilitation.

• 대한족부족관절학회지
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• 제14권1호
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• pp.90-96
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• 2010

Purpose: The purpose of this study is to investigate the usefulness of ultrasound-guided femorosciatic nerve block by orthopaedist to operate the fracture around ankle. Materials and Methods: Twenty-two patients, who had an operation for fracture around the ankle under a ultrasound-guided femorosciatic nerve block from January to April 2010, were the targets of this study. We measured the time spent for the ultrasound-guided femorosciatic nerve block, the time taken to start the operation after the nerve block, the time taken to deflate the tourniquet because of a tourniquet pain, the time passed until feeling a postoperative pain after the operation, etc. We also studied the complications and satisfaction of the anesthesia. Results: It took 6.2 (3 to 12) minutes for the nerve block, 46.1 (28 to 75) minutes to start the operation, 52.5 (22 to 78) minutes until feeling a tourniquet pain and 11.5 (7.5 to 19) hours until starting to feeing a postoperative pain. There was no complication by anesthesia and 21 people (95.5%) were satisfied with anesthesia by ultrasound-guided femorosciatic nerve block. Conclusion: Ultrasound-guided femorosciatic nerve block by orthopaedist in the fracture around ankle reduces anesthetic and nerve injury complication, and leads to high anesthetic success rate. Also it is considered as an effective method to alleviate postoperative pain.

• Archives of Reconstructive Microsurgery
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• 제6권1호
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• pp.73-79
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• 1997

Complete denervation after severe brachial plexus injury make significant muscle atrophy with loss of proper function. It is much helpful to reconstruct the essential function of the elbow flexion movement in patient with total loss of elbow flexion motion after brachial plexus lesion which was not recovered with nerve surgery or long term conservative treatment from onset. In whole arm type brachial plexus injury, if there were no response to neurotization or neglected from injury, the volume of the denervated muscle is significantely reduced month by month. About 18 months most of the muscle fibers change to fibrous tissues and markedly atrophied irreversibly, further waiting is no more meaningful from that period. Authors performed 14 cases of functioning gracilis muscle transfer from 1981 to 1995 with microneurovascular technique, neuromusculocutaneous free flaps were performed for reconstruction of lost elbow flexion function. Average follow-up period was 5 years and 6 months. We used couple of intercostal nerves as a recipient nerve which were anastomosed to muscular nerve from obturator nerve in all cases. Recipient vessels were three deep brachial artery and eleven brachial artery which were anastomosed to medial femoral circumflex artery with end to end or end to side fashion. Average resting length of the transplanted gracilis were 24 cm. We can get average 54 degree flexion range of elbow with fair muscle power from flail elbow. There were one case of muscle necrosis with lately developed thrombosis of microvascular anastomosed site which comes from insufficient recipient arterial condition, 3 cases of partial marginal necrosis of distal skin of the transplanted part which were not significant problem with spontaneously solved with time goes by gracilis muscle has constant neurovascular pattern with relatively easy harvesting donor with minimal donor morbidity. Especially it has similar length and shape with biceps brachii muscle of upper arm and longer nerve pedicle which can neurorrhaphy with intercostal nerve without nerve graft if sufficient mobilization of the nerves from both sides of gracilis and intercostal region. Authors can propose gracilis muscle transplantation with intercostal nerves neurotization is helpful method with minimal donor morbidity for neglected brachial plexus palsy patients.

• Journal of Chest Surgery
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• 제36권5호
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• pp.343-347
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• 2003

배경: 급성 상행대동맥박리증 수술 시 대퇴동맥이 동맥삽관 장소로 주로 이용되어 왔으나 최근 관류 장애 및 역행성 색전증의 발생 위험이 적은 액와동맥삽관이 증가하고 있다. 이에 기존의 대퇴동맥 삽관술과 액와동맥 삽관술을 이용한 수술성적을 비교하여 액와동맥 삽관술의 안전성과 유용성을 고찰하고자 하였다. 대상 및 방법: 1995년 10월부터 2001년 9월까지 급성 상행대동맥박리증으로 수술을 받은 71명을 대상으로 의무기록을 후향적으로 검토하여 수슬 전의 상태, 수술범위 및 방법, 수술 후 경과를 분석하였다. 대퇴동맥삽관은 40명으로 평균 연령은 57세, 액와동맥삽관은 31명으로 평균 56세였다. 결과: 액와동맥군의 평균 체외순환시간과 순환정지시간은 각각 207분과 39분으로 대퇴동맥군의 263분과 49분보다 의미있게 짧았고(p<0.05), 수술 후 입원기간 역시 액와동맥군에서 15일로 대퇴동맥군의 35일에 비하여 의미있게 단축되었다(p<0.05). 수술 후 사망률(액와동맥군 6.5%, 대퇴동맥군 10%)과 영구적 신경계 합병증 발생률(액와동맥군 3.2%, 대퇴동맥군 2.5%)은 의미있는 차이를 보이지 않았으나 일시적 신경계 합병증의 발생률은 액와동맥군에서 12.9%, 대퇴동맥군에서 25%로 의미있는 차이를 보였다(p<0.05). 대퇴동맥군 중 2명의 환자에서 수술 중 대동맥궁 분지의 관류 부전이 발견되어 삽관 위치의 변경이 필요하였다. 액와동맥 삽관에 따른 합병증으로는 1명의 환자가 정중신경 손상을 경험하였다. 결론: 급성 상행대동맥박리증 수술에서 액와동맥 삽관은 뇌허혈시간의 단축과 이에 따른 수술 후 신경계 합병증의 발생률을 낮추는 데 기여하는 안전한 술식으로 판단된다. 또한, 이에 따라 대동맥궁에 내피 손상부위가 있는 환자에 대하여 보다 적극적이고 광범위한 수술 적용을 가능하게 한 것으로 판단된다.