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Abd-Elsayed A, Henjum LJ, Shiferaw BT, Yassa PE, Fiala KJ. Infrapatellar Branch of the Saphenous Nerve: Therapeutic Approaches to Chronic Knee Pain. Curr Pain Headache Rep 2024; 28:279-294. [PMID: 38294640 DOI: 10.1007/s11916-024-01217-7] [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] [Accepted: 01/22/2024] [Indexed: 02/01/2024]
Abstract
PURPOSE OF REVIEW The infrapatellar branch of the saphenous nerve (IPS) is an under-investigated nerve that can be a source of chronic knee pain. This literature review aims to deliver an up-to-date review of chronic pain transmitted via the IPS along with therapeutic approaches available for pain refractory to conservative measures. RECENT FINDINGS Knee pain transmitted via the IPS can arise from several etiologies. Damage to the IPS is often iatrogenic and develops following total knee arthroplasty, anterior cruciate ligament reconstruction, and other knee surgical procedures. Other causes of IPS-derived pain include entrapment of the nerve, neuromas, Schwannomas, and pain from knee osteoarthritis transmitted through the IPS.This article investigated therapeutic approaches to pain derived from the IPS. Common approaches included radiofrequency ablation, neuroma excisions, Schwannoma excision, nerve blocks, surgical exploration, surgical release of an entrapped nerve, cryoablation, and peripheral nerve stimulation. Pain scores, duration of pain relief, adverse events, and secondary outcomes were all included in this review. A subset of the patient population experiences chronic pain deriving from the IPS that is refractory to conservative treatment measures. This review aims to evaluate the etiologies and therapeutic approaches for chronic pain arising from the IPS refractory to conservative treatments.
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Affiliation(s)
- Alaa Abd-Elsayed
- Anesthesiology Department, University of Wisconsin, 600 Highland Avenue, Madison, WI, B6/319 CSC, USA.
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Valenzuela-Fuenzalida JJ, Inostroza-Wegner A, Osorio-Muñoz F, Milos-Brandenberg D, Santana-Machuca A, Nova Baeza P, Donoso MO, Bruna-Mejias A, Iwanaga J, Sanchis-Gimeno J, Gutierrez-Espinoza H. The Association between Anatomical Variants of Musculoskeletal Structures and Nerve Compressions of the Lower Limb: A Systematic Review and Meta-Analysis. Diagnostics (Basel) 2024; 14:695. [PMID: 38611609 PMCID: PMC11011940 DOI: 10.3390/diagnostics14070695] [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: 02/12/2024] [Revised: 03/14/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Objective: The aim of this study was to describe the main anatomical variants and morphofunctional alterations in the lower limb that compress surrounding nervous structures in the gluteal region, thigh region, and leg and foot region. Methods: We searched the Medline, Scopus, Web of Science, Google Scholar, CINAHL, and LILACS databases from their inception up to October 2023. An assurance tool for anatomical studies (AQUA) was used to evaluate methodological quality, and the Joanna Briggs Institute assessment tool for case reports was also used. Forest plots were generated to assess the prevalence of variants of the gluteal region, thigh, and leg. Results: According to the forest plot of the gluteal region, the prevalence was 0.18 (0.14-0.23), with a heterogeneity of 93.52%. For the thigh region, the forest plot presented a prevalence of 0.10 (0.03-0.17) and a heterogeneity of 91.18%. The forest plot of the leg region was based on seven studies, which presented a prevalence of 0.01 (0.01-0.01) and a heterogeneity of 96.18%. Conclusions: This review and meta-analysis showed that, in studies that analyzed nerve compressions, the prevalence was low in the thigh and leg regions, while in the gluteal region, it was slightly higher. This is mainly due to the PM region and its different variants. We believe that it is important to analyze all the variant regions defined in this study and that surgeons treating the lower limb should be attentive to these possible scenarios so that they can anticipate possible surgical situations and thus avoid surgical complications.
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Affiliation(s)
- Juan José Valenzuela-Fuenzalida
- Department of Morphology and Function, Faculty of Health Sciences, Universidad De Las Américas, Santiago 7500000, Chile; (J.J.V.-F.); (A.S.-M.)
- Departament de Morfología, Facultad de Medicina, Universidad Andrés Bello, Santiago 8320000, Chile; (A.I.-W.); (F.O.-M.); (P.N.B.); (M.O.D.); (A.B.-M.)
| | - Alfredo Inostroza-Wegner
- Departament de Morfología, Facultad de Medicina, Universidad Andrés Bello, Santiago 8320000, Chile; (A.I.-W.); (F.O.-M.); (P.N.B.); (M.O.D.); (A.B.-M.)
| | - Francisca Osorio-Muñoz
- Departament de Morfología, Facultad de Medicina, Universidad Andrés Bello, Santiago 8320000, Chile; (A.I.-W.); (F.O.-M.); (P.N.B.); (M.O.D.); (A.B.-M.)
| | - Daniel Milos-Brandenberg
- Escuela de Medicina, Facultad Ciencias de la Salud, Universidad del Alba, Santiago 8320000, Chile;
| | - Andres Santana-Machuca
- Department of Morphology and Function, Faculty of Health Sciences, Universidad De Las Américas, Santiago 7500000, Chile; (J.J.V.-F.); (A.S.-M.)
| | - Pablo Nova Baeza
- Departament de Morfología, Facultad de Medicina, Universidad Andrés Bello, Santiago 8320000, Chile; (A.I.-W.); (F.O.-M.); (P.N.B.); (M.O.D.); (A.B.-M.)
| | - Mathias Orellana Donoso
- Departament de Morfología, Facultad de Medicina, Universidad Andrés Bello, Santiago 8320000, Chile; (A.I.-W.); (F.O.-M.); (P.N.B.); (M.O.D.); (A.B.-M.)
- Escuela de Medicina, Universidad Finis Terrae, Santiago 7501015, Chile
| | - Alejandro Bruna-Mejias
- Departament de Morfología, Facultad de Medicina, Universidad Andrés Bello, Santiago 8320000, Chile; (A.I.-W.); (F.O.-M.); (P.N.B.); (M.O.D.); (A.B.-M.)
| | - Joe Iwanaga
- Department of Oral and Maxillofacial Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8510, Japan;
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA 70112, USA
- Department of Neurology, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA 70112, USA
- Department of Structural & Cellular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Juan Sanchis-Gimeno
- GIAVAL Research Group, Department of Anatomy and Human Embryology, Faculty of Medicine, University of Valencia, 46001 Valencia, Spain;
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Iliacus minor and psoas quartus muscles traversing the femoral nerve. Morphologie 2021; 106:307-309. [PMID: 34696972 DOI: 10.1016/j.morpho.2021.10.001] [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: 09/10/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 11/24/2022]
Abstract
Anatomical variations of the nerves of the body can be relevant to surgical approaches anesthetic blockade, and other region procedures. Herein, we report a case of three muscle fascicles of the variant psoas quartus and iliacus minor muscles traversing the femoral nerve. Salient literature is reviewed regarding this phenomenon. Variations in the femoral nerve, such as illustrated in the current case, could also help explain hip and thigh pain, and failure of traditional anesthetic placement to block sensation from the femoral nerve completely. Given the procedural relevance of variations in the femoral nerve, further characterizations of nontraditional courses could help to avoid nerve injury during interventions.
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Kim H, Nam YS, Kim YS. The ascending branch of the lateral circumflex femoral artery penetrating the posterior division of the femoral nerve. Anat Cell Biol 2021; 54:124-127. [PMID: 33536351 PMCID: PMC8017448 DOI: 10.5115/acb.20.237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/23/2020] [Accepted: 11/10/2020] [Indexed: 11/27/2022] Open
Abstract
Understanding anatomic variations in neurovascular structure inside the femoral triangle is crucial for regional anesthesiologists performing femoral nerve block. During routine dissection of a cadaver, an ascending branch of the lateral circumflex femoral artery with an anomalous course passing through the femoral nerve, specifically the posterior division, was identified inside the femoral triangle on the left thigh. The novel variation identified in this study occurred in an early stage of prenatal development. Recognition of this anatomic variation will be helpful for reducing unexpected complications during the femoral nerve block and the tensor fascia latae flap. Penetration of the posterior division of the femoral nerve by the arterial branch might cause pain or paresthesia of the medial aspect of the leg in the distribution of the saphenous nerve.
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Affiliation(s)
- Hankyu Kim
- Department of Anatomy, College of Medicine, The Catholic University of Korea, Seoul, Korea
- The Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yong Seok Nam
- Department of Anatomy, College of Medicine, The Catholic University of Korea, Seoul, Korea
- The Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yi-Suk Kim
- Department of Anatomy, College of Medicine, The Catholic University of Korea, Seoul, Korea
- The Catholic Institute for Applied Anatomy, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Femoral nerve split with variant iliacus muscle: a potential source of femoral nerve entrapment. Surg Radiol Anat 2020; 42:1255-1257. [PMID: 32444934 DOI: 10.1007/s00276-020-02502-x] [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: 02/06/2020] [Accepted: 05/14/2020] [Indexed: 10/24/2022]
Abstract
The iliacus muscle is a large, flat, triangle-shaped muscle located in the iliac fossa. This muscle forms part of the iliopsoas muscle complex. Although anatomical variations of iliacus muscles are rare, some variations are clinically important due to the possible coexistence of an unusual course of the femoral nerve. The femoral nerve is the largest branch of the lumbar plexus and supplies the muscles and skin in the anterior aspect of the thigh. We encountered a case of a single aberrant slip of the iliacus muscle piercing the femoral nerve in the left iliac fossa of a male cadaver aged 97 years. The potential clinical importance of this variant iliacus muscle accompanied by a femoral nerve split would be femoral neuropathy and possible consequent alterations of sensation in the anterior and medial aspects of the thigh or motor deficit of the quadriceps muscle.
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