1
|
Yi KH, Hu H, Lee JH, An MH, Lee HJ, Choi YJ, Kim HJ. Sihler's staining technique: How to and guidance for botulinum neurotoxin injection in human muscles. Clin Anat 2024; 37:169-177. [PMID: 37255275 DOI: 10.1002/ca.24076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 05/17/2023] [Accepted: 05/21/2023] [Indexed: 06/01/2023]
Abstract
The Sihler's stain is a whole-mount nerve staining technique that allows visualization of the nerve distribution and permits mapping of the entire nerve supply patterns of the organs, skeletal muscles, mucosa, skin, and other structures that contain myelinated nerve fibers. Unlike conventional approaches, this technique does not require extensive dissection or slide preparation. To date, the Sihler's stain is the best tool for demonstrating the precise intramuscular branching and distribution patterns of skeletal muscles. The intramuscular neural distribution is used as a guidance tool for the application of botulinum neurotoxin injections. In this review, we have identified and summarized the ideal botulinum neurotoxin injection points for several human tissues.
Collapse
Affiliation(s)
- Kyu-Ho Yi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
- Maylin Clinic (Apgujeong), Seoul, Republic of Korea
| | - Hyewon Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Republic of Korea
| | - Ji-Hyun Lee
- Department of Anatomy and Acupoint, College of Korean Medicine, Gachon University, Seongnam, South Korea
| | - Min Ho An
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, South Korea
| | - Hyung-Jin Lee
- Department of Anatomy, Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - You-Jin Choi
- Department of Anatomy, College of Medicine, Konkuk University, Chungju, South Korea
| | - Hee-Jin Kim
- Division in Anatomy & Developmental Biology, Department of Oral Biology, Yonsei University College of Dentistry, Seoul, Republic of Korea
| |
Collapse
|
2
|
Yi KH, Choi YJ, Lee JH, Hu H, Gil YC, Hu KS, Kim HJ. Anatomical Considerations for the Injection of Botulinum Neurotoxin in Shoulder and Arm Contouring. Aesthet Surg J 2024; 44:319-326. [PMID: 37548270 DOI: 10.1093/asj/sjad250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/24/2023] [Accepted: 08/04/2023] [Indexed: 08/08/2023] Open
Abstract
The utilization of botulinum neurotoxin in the field of body contouring is on the rise. Body contouring procedures typically focus on specific muscle groups such as the superior trapezius, deltoid, and lateral head of the triceps brachii. The authors propose identifying optimal injection sites for botulinum neurotoxin to achieve desired aesthetic contouring of the shoulders and arms. The authors conducted a modified Sihler's staining method on specimens of the superior trapezius, deltoid, and lateral head of the triceps brachii muscles, totaling 16, 14, and 16 specimens, respectively. The neural distribution exhibited the most extensive branching patterns within the horizontal section (between 1/5 and 2/5) and the vertical section (between 2/4 and 4/4) of the superior trapezius muscle. In the deltoid muscle, the areas between the anterior and posterior deltoid bellies, specifically within the range of the horizontal 1/3 to 2/3 lines, showed significant intramuscular arborization. Furthermore, the middle deltoid muscle displayed arborization patterns between 2/3 and the axillary line. Regarding the triceps brachii muscle, the lateral heads demonstrated arborization between 4/10 and 7/10. The authors recommend targeting these regions, where maximum arborization occurs, as the optimal and safest points for injecting botulinum toxin.
Collapse
|
3
|
Yi KH, Lee KW, Hu HW, Lee JH, Lee HJ. A practical guide to botulinum neurotoxin treatment of teres major muscle in shoulder spasticity: Intramuscular neural distribution of teres major muscle in cadaver model. PM R 2024; 16:160-164. [PMID: 37526565 DOI: 10.1002/pmrj.13048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/27/2023] [Accepted: 05/26/2023] [Indexed: 08/02/2023]
Abstract
BACKGROUND Botulinum neurotoxin treatment typically focuses on the teres major muscle as a primary target for addressing shoulder spasticity. The muscle is located deep within a large muscle group and optimal injection locations have not been identified. OBJECTIVE To identify the preferred location for administering botulinum toxin injections in the teres major muscle. METHODS Teres major specimens were removed from 18 cadaveric models and stained with Sihler's method to reveal the neural distribution within the muscle. The muscles were systematically divided into equal lengths from origin to insertion. The neural density in each section was evaluated to determine the location that would be likely to increase effectiveness of the injection. RESULTS The greatest density of intramuscular nerve endings was located in the middle 20% of the muscle. The tendinous portion was observed at the ends of the muscle. CONCLUSIONS The results suggest that botulinum neurotoxin should be delivered in the middle 20% of the teres major muscle.
Collapse
Affiliation(s)
- Kyu-Ho Yi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Kang-Woo Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Hye-Won Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ji-Hyun Lee
- Department of Anatomy and Acupoint, College of Korean Medicine, Gachon University, Seongnam-si, South Korea
| | - Hyung-Jin Lee
- Department of Anatomy, Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| |
Collapse
|
4
|
Yi KH, Lee JH, Hu HW, Park HJ, Bae H, Lee K, Kim HJ. Novel anatomical guidelines for botulinum neurotoxin injection in the mentalis muscle: a review. Anat Cell Biol 2023; 56:293-298. [PMID: 36796830 PMCID: PMC10520866 DOI: 10.5115/acb.22.266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/10/2023] [Accepted: 01/25/2023] [Indexed: 02/18/2023] Open
Abstract
The mentalis muscle is a paired muscle originating from the alveolar bone of the mandible. This muscle is the main target muscle for botulinum neurotoxin (BoNT) injection therapy, which aims to treat cobblestone chin caused by mentalis hyperactivity. However, a lack of knowledge on the anatomy of the mentalis muscle and the properties of BoNT can lead to side effects, such as mouth closure insufficiency and smile asymmetry due to ptosis of the lower lip after BoNT injection procedures. Therefore, we have reviewed the anatomical properties associated with BoNT injection into the mentalis muscle. An up-to-date understanding of the localization of the BoNT injection point according to mandibular anatomy leads to better injection localization into the mentalis muscle. Optimal injection sites have been provided for the mentalis muscle and a proper injection technique has been described. We have suggested optimal injection sites based on the external anatomical landmarks of the mandible. The aim of these guidelines is to maximize the effects of BoNT therapy by minimizing the deleterious effects, which can be very useful in clinical settings.
Collapse
Affiliation(s)
- Kyu-Ho Yi
- Wonju Public Health Center, Wonju, Korea
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Ji-Hyun Lee
- Department of Anatomy and Acupoint, College of Korean Medicine, Gachon University, Seongnam, Korea
| | - Hye-Won Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, Korea
| | | | - Hyungkyu Bae
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Kangwoo Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Hee-Jin Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, Korea
| |
Collapse
|
5
|
Yi KH, Kim SB, Lee K, Hu H, Lee JH, Lee HJ. Intramuscular neural distribution of the teres minor muscle using Sihler's stain: application to botulinum neurotoxin injection. Anat Cell Biol 2023; 56:322-327. [PMID: 37463677 PMCID: PMC10520855 DOI: 10.5115/acb.23.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 05/16/2023] [Indexed: 07/20/2023] Open
Abstract
The aim of this study was to elucidate the intramuscular arborization of the teres minor muslce for effective botulinum neurotoxin injection. Twelve specimens from 6 adult Korean cadavers (3 males and 3 females, age ranging from 66 to 78 years) were used in the study. The reference line between the 2/3 point of the axillary border of the scapula (0/5), where the muscle originates ant the insertion point of the greater tubercle of the humerus (5/5). The most intramuscular neural distribution was located on 1/5-3/5 of the muscle. The tendinous portion was observed in the 3/5-5/5. The result suggests the botulinum neurotoxin should be delivered in the 1/5-3/5 area of the teres minor muscle.
Collapse
Affiliation(s)
- Kyu-Ho Yi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Soo-Bin Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Kangwoo Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Hyewon Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Yonsei University College of Dentistry, Seoul, Korea
| | - Ji-Hyun Lee
- Department of Anatomy and Acupoint, College of Korean Medicine, Gachon University, Seongnam, Korea
| | - Hyung-Jin Lee
- Department of Anatomy, Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul, Korea
| |
Collapse
|
6
|
Yi KH, Lee JH, Hu H, Kim JH, Park HJ, Kim KB, Kim JH, Kim HJ. Anatomical proposal of local anesthesia injection for median nerve block in treating hyperhidrosis with botulinum neurotoxin. Surg Radiol Anat 2023; 45:1083-1087. [PMID: 37468725 DOI: 10.1007/s00276-023-03199-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 06/28/2023] [Indexed: 07/21/2023]
Abstract
INTRODUCTION Hyperhidrosis, causing excessive sweat, can be treated with Botulinum neurotoxin injection. Botulinum toxin, an effective and safe treatment for hyperhidrosis, unfortunately involves significant pain due to multiple injections. This study aims to propose a more efficient and less painful approach to nerve blocks for relief, by identifying optimal injection points to block the median nerve, thereby enhancing palmar hyperhidrosis treatment. METHODS This study, involving 52 Korean cadaver arms (mean age 73.5 years), measured the location of the median nerve relative to the transverse line at the pisiform level to establish better nerve block injection sites. RESULTS In between the extensor carpi radialis and palmaris longus, the median nerve was located at an average distance of 47.39 ± 6.43 mm and 29.39 ± 6.43 mm from the transverse line at the pisiform level. DISCUSSION To minimize discomfort preceding the botulinum neurotoxin injection, we recommend the optimal injection site for local anesthesia to be located 4 cm distal to the transverse line of the pisiform, within the tendons of the palmaris longus and flexor carpi radialis muscles.
Collapse
Affiliation(s)
- Kyu-Ho Yi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seoul, 03722, Republic of Korea
- Maylin Clinic (Apgujeong), Seoul, 06005, Korea
| | - Ji-Hyun Lee
- Department of Anatomy and Acupoint, College of Korean Medicine, Gachon University, 1332, Seongnam-daero, Sujeong-gu, Seongnam-si, 13120, Republic of Korea
| | - Hyewon Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seoul, 03722, Republic of Korea
| | | | | | | | - Ji-Hyo Kim
- Misogain Dermatology Clinic, Gimpo, Republic of Korea
| | - Hee-Jin Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seoul, 03722, Republic of Korea.
| |
Collapse
|
7
|
Hu H, An MH, Lee HJ, Yi KH. Guidance in botulinum neurotoxin injection for lower extremity spasticity: Sihler's staining technique. Surg Radiol Anat 2023:10.1007/s00276-023-03178-9. [PMID: 37294437 DOI: 10.1007/s00276-023-03178-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 05/27/2023] [Indexed: 06/10/2023]
Abstract
Spasticity is a motor disease characterized by a velocity-dependent acceleration in muscle tone or tonic stretch reflexes linked to hypertonia. Lower limb spasticity has been successfully treated with botulinum neurotoxin; however, the injection sites have not been generalized. Sihler's stain has been used to visualize intramuscular nerve distribution to guide botulinum neurotoxin injection. Sihler staining is a whole-mount nerve staining technique that allows visualization of nerve distribution and mapping of entire nerve supply patterns in skeletal muscle with hematoxylin-stained myelinated nerve fibers. This study reviewed and summarized previous lower extremity spasticity studies to determine the ideal injection site for botulinum neurotoxin.
Collapse
Affiliation(s)
- Hyewon Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Maylin Clinic, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seoul, 03722, Republic of Korea
| | - Min Ho An
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, South Korea
| | - Hyung-Jin Lee
- Department of Anatomy, Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea.
| | - Kyu-Ho Yi
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 PLUS Project, Maylin Clinic, Yonsei University College of Dentistry, 50-1 Yonsei-Ro, Seoul, 03722, Republic of Korea.
- Maylin Clinic (Apgujeong), Seoul, South Korea.
| |
Collapse
|
8
|
Yi KH, Lee KL, Lee JH, Hu HW, Kim HJ. Guidance to trigger point injection for treating myofascial pain syndrome: Intramuscular neural distribution of the quadratus lumborum. Clin Anat 2022; 35:1100-1106. [PMID: 35655442 DOI: 10.1002/ca.23918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/31/2022] [Accepted: 05/31/2022] [Indexed: 11/07/2022]
Abstract
Postural habits and repetitive motion contribute toward the progress of myofascial pain by affecting overload on specific muscles, the quadratus lumborum (QL) muscle being the most frequently involved. The therapy of myofascial pain syndrome includes the release of myofascial pain syndrome using injective agents such as botulinum neurotoxin, lidocaine, steroids, and normal saline. However, an optimal injection point has not been established for the QL muscle. This study aimed to propose an optimal injection point for this muscle by studying its intramuscular neural distribution using the whole mount staining method. A modified Sihler's procedure was completed on 15 QL muscles to visualize the intramuscular arborization areas in terms of the inferior border of the 12th rib, the transverse processes of L1-L4, and the iliac crest. The intramuscular neural distribution of the QL had the densely arborized areas in the three lateral portions of L3-L4 and L4-L5 and the medial portion between L4 and L5.
Collapse
Affiliation(s)
- Kyu-Ho Yi
- Wonju Public Health Center, COVID-19 Division, Wonju-si, South Korea
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Kyu-Lim Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Ji-Hyun Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Hye-Won Hu
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Hee-Jin Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Institute, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
- Department of Materials Science & Engineering, College of Engineering, Yonsei University, Seoul, South Korea
| |
Collapse
|
9
|
Novel Anatomical Guidelines on Botulinum Neurotoxin Injection for Wrinkles in the Nose Region. Toxins (Basel) 2022; 14:toxins14050342. [PMID: 35622589 PMCID: PMC9144745 DOI: 10.3390/toxins14050342] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/11/2022] [Accepted: 05/13/2022] [Indexed: 01/24/2023] Open
Abstract
Botulinum neurotoxin injection surrounding the nose area is frequently used in aesthetic settings. However, there is a shortage of thorough anatomical understanding that makes it difficult to treat wrinkles in the nose area. In this study, the anatomical aspects concerning the injection of botulinum neurotoxin into the nasalis, procerus, and levator labii superioris alaeque muscles are assessed. In addition, the present knowledge on localizing the botulinum neurotoxin injection point from a newer anatomy study is assessed. It was observed that, for the line-associated muscles in the nose region, the injection point may be more precisely defined. The optimal injection sites are the nasalis, procerus, and levator labii superioris alaeque muscles, and the injection technique is advised. We advise the best possible injection sites in association with anatomical standards for commonly injected muscles to increase efficiency in the nose region by removing the wrinkles. Similarly, these suggestions support a more precise procedure.
Collapse
|
10
|
Intramuscular Neural Distribution of the Serratus Anterior Muscle: Regarding Botulinum Neurotoxin Injection for Treating Myofascial Pain Syndrome. Toxins (Basel) 2022; 14:toxins14040271. [PMID: 35448880 PMCID: PMC9033065 DOI: 10.3390/toxins14040271] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/23/2022] [Accepted: 03/31/2022] [Indexed: 02/06/2023] Open
Abstract
The serratus anterior muscle is commonly involved in myofascial pain syndrome and is treated with many different injective methods. Currently, there is no definite injection point for the muscle. This study provides a suggestion for injection points for the serratus anterior muscle considering the intramuscular neural distribution using the whole-mount staining method. A modified Sihler method was applied to the serratus anterior muscles (15 specimens). The intramuscular arborization areas were identified in terms of the anterior (100%), middle (50%), and posterior axillary line (0%), and from the first to the ninth ribs. The intramuscular neural distribution for the serratus anterior muscle had the largest arborization patterns in the fifth to the ninth rib portion of between 50% and 70%, and the first to the fourth rib portion had between 20% and 40%. These intramuscular neural distribution-based injection sites are in relation to the external anatomical line for the frequently injected muscles to facilitate the efficiency of botulinum neurotoxin injections. Lastly, the intramuscular neural distribution of serratus anterior muscle should be considered in order to practice more accurately without the harmful side effects of trigger-point injections and botulinum neurotoxin injections.
Collapse
|