Sternocleidomastoid Region Research Articles

Neurofibromatosis type 1-associated plexiform neurofibromas of the neck: topography of lesions and surgical treatment data of 69 patients

PurposePlexiform neurofibromas (PNF) are rare tumors arising from peripheral nerve sheath cells. PNF are a hallmark in patients with neurofibromatosis type 1 (NF1), a tumor predisposition syndrome. PNF often grow invasively and destructively, what may complicate surgical treatment. Data on frequency, location, and surgical procedures of patients with NF1-associated FPNF are scarce. This study provides treatment data of NF1 patients.MethodsLocalization and treatment data of 69 NF1 patients with neck PNF were analyzed. Frequency of lesions was recorded in coded colors on schematic neck drawings.ResultsThe tumors showed no side preference, were located in the entire area under investigation, and did not respect anatomical units/dermatomes. However, the sternocleidomastoid region was particularly frequently affected. The mean number of surgical measures per patient was 1.33. Complications were extensive swelling, hematoma, and bleeding. Histological assessment usually confirmed the clinical assessment of neoplasm. However, histologic differentiation of PNST reveals differences in between tumors that have been unified in clinical assessment as PNF.ConclusionThe color-coded, schematic overview of the frequency distribution of surgical neck interventions in NF1 patients with PNF proved a useful tool to gain assessment of preferred treatment needs. The imaging procedure may be suitable for controlling the external aspect of natural tumor development (growth, effects of aging) in the same way as the documentation of the post-surgical course. Treatment plans for patients with these tumors should consider that repeated interventions may be necessary to achieve a longer-term stable result.

PEQULIARITIES OF MORPHOGENESYS AND TOPOGRAPHY OF INFRAHYOID TRIANGLES IN HUMAN PREFETUSES AND FETUSES

The aim: To investigate morphology and developmental features of anatomical structures in the infrahyoid triangles of human neck during prefetal and fetal periods of human ontogenesis. Materials and methods: We have studied 30 specimens of human prefetuses from 7th till 12th week (16,0-82,0 mm of parieto-coccygeal length (PCL)) and 30 human fetuses aged from 4th till 10th month (84,0-360,0 mm PCL) of intrauterine development by the means of macro-, microscopy, morphometry, three-dimensional remodeling and statistical analyses. Results: We can observe anterior triangle in human fetuses after the time when common precursor muscular mass splits into two: the anterior and posterior portions which will give rise to the sternocleidomastoid and trapezoid muscles accordingly. The area index of the central triangle in human fetuses 4th - 10th month of intrauterine development shows the increasing tendency with the highest rates at 8th-10th months period - 1100-1200 mm2. The angulated course of omohyoid muscle is visible at late prefetal and early fetal periods (3-4th month; 80,0-130,0 PCL) as well as the presence of intermediate tendon. Peaks of the area of sternocleidomastoid region area evaluation was observed in 190,0-210,0 mm PCL and 260,0-270,0 mm PCL human fetuses; 6th and 7,5th months accordingly. Conclusions: The critical periods for the AT and SCM regions should be considered 6th and 8th months of the IUD. Prefetal period shows the presence of AT and border structure for the IH neck - precursor of HB. Fetal period of IUD (4th - 10th months of IUD) should be considered as such that represents an adult-alike morphology of IH neck: presence of IH triangles with fully developed vascular, muscular and fascial content.

Dissection and observation of a large unnamed nerve in the posterior cervical triangle

To characterize the anatomical features of a large unnamed nerve in the posterior cervical triangle and clarify its relationship with the lesser occipital nerve. We dissected 31 adult formalin-fixed cadaver head and neck specimens (62 sides). The lateral cervical region, the anterior cervical region, the sternocleidomastoid region, and the occipital region were dissected to define the anatomical features of the unnamed nerve. This unnamed nerve was identified in the posterior cervical triangle in 96.8% of the specimens. The main trunk of the nerve had a diameter of about 3 mm with a length of around 10 cm. The nerve arose from the anterior branch of the second cervical nerve (C2, C2-3), entered the posterior cervical triangle at 1-3 cm above the accessory nerve, and continued to ascend along or in parallel with the posterior border of the sternocleidomastoid muscle. It passed between the attachments of the sternocleidomastoid and the trapezius to the occiput and divided into 3-5 branches, which innervated the skin area between the lesser and greater occipital nerves. We identified a large unnamed nerve in the posterior cervical triangle, for which we coined the name "long occipital nerve" based on its unique anatomical features. The discovery of this nerve can be important for local surgery and for diagnosis and treatment of related diseases.

Prevention and management of skin burn in endoscopic thyroidectomy via upper anterior thoracic approach

Total 268 patients underwent endoscopic thyroidectomy via upper anterior thoracic approach in Wenling First People′s Hospital from June 2005 to July 2015, and skin burn occurred in 21 cases (7.8%). The causes of skin burns were shallower level of built space in 9 cases (43%), mismanagement for skin bleeding in 11 cases (52%), and improper separation of sternocleidomastoid region in 1 case (5%). After management 12 cases of subcutaneous ecchymosis or blisters (57%) were healed without pigmentation, 3 cases of skin necrosis (14%) were healed with scars, 4 cases of burned skin rupture treated with intradermal suture (19%) were healed by first intension and with minor scars, 2 cases of burned skin rupture treated with catheter drainage (10%) were healed with obvious scars. The results show that correct level of puncture and proper management of skin bleeding can prevent skin burn, and proper treatments of skin burn can reduce the skin scars. Key words: Endoscope; Thyroidectomy; Burn, electric; Skin

Sternocleidomastoid Region: The “No Man’s Land” in Neck

Sternocleidomastoid Region: The “No Man’s Land” in Neck

Sternocleidomastoid region restoration with lateral hemisoleus muscle incorporatied in free fibular flap for reconstruction of radical neck dissection and hemimandibulectomy

In the treatment of head and neck carcinoma, radical cervical lymphadenectomy leaves the affected side of the neck devoid of the sternocleidomastoid muscle, thus more vulnerable to the unwanted side effects of the adjuvant radiotherapy. It also causes asymmetry and cosmetically unpleasant appearance of the cervical region. In the reported case with widely ulcerated squamous-cell carcinoma over mandible, hemimandibulectomy and radical neck dissection was performed. Following the mandibular reconstruction, the lateral hemisoleus muscle of the harvested osteomyocutaneous fibula flap was utilized to restore the ipsilateral sternocleidomastoid region. This new application promises to be a useful method, which can aid in the restoration of the aesthetic contour of the neck and provide protection against unwanted effects of the adjuvant radiotherapy on the ipsilateral carotid artery.

The Purse-String Reinforced SMASectomy Short Scar Facelift

Over the last two decades, short scar facelifts, often referred to as "mini" facelifts, have gained popularity. We use a purse-string reinforced (PRS) superficial musculoaponeurotic system rhytidectomy (SMASectomy) shortscar facelift that combines a SMASectomy in the vertical direction and suspension sutures in order to improve structural facial support. In the case of visible platysma bands and/or local fat deposition, liposuction (frequently followed by an anterior plastysmaplasty procedure) was added to correct features that are not consistently correctable using only a short scar facelift. This study retrospectively analyzes our experience with a new type of short scar facelift technique that combines both a superficial musculoaponeurotic system rhytidectomy (SMAS-ectomy) and suspension sutures with a thorough approach to the anterior surface of the neck. Over a period of three years, the PRS short scar facelift was performed in 137 patients with a mean age of 55 years (range 23-79 years). In almost half of the patients, the PRS short scar facelift was preceded by a separate treatment of the anterior neck contour by liposuction (67/137 patients; 49%). In two-thirds of these patients (42/67 patients), this liposuction was followed by an anterior plastymaplasty. Most patients (129/137; 94%) were satisfied or very satisfied with their results at the end of the follow-up period. Eight patients were not satisfied: five because of higher expectations, two because of insufficient improvement of the plastysma bands (which had not been treated by a plastysmaplasty procedure), and one because of the improper recognition of midface sagging (which had not been treated and was not properly discussed preoperatively). In the case of plastysma bands, platysmaplasty (n = 42) did improve the presence of these bands. There were no major complications in this series: 1 case had temporary neuropraxia of a buccal branch, which resolved after two months; two cases had hematoma, requiring evacuation on the outpatient clinic after one week; two cases with traction dimpling in the neck over the sternocleidomastoid region required late surgical revision; and one case had hypertrophic scarring in the preauricular area. The PRS technique is a short scar facelift technique that is both simple and safe. Complications are uncommon and usually minor. However, in the presence of platysma bands and/or local fat deposition, an anterior neck procedure-liposuction and/or anterior platysmaplasty-should be incorporated in order to optimize the results.

Neuro Emotional Technique for the treatment of trigger point sensitivity in chronic neck pain sufferers: a controlled clinical trial.

BackgroundTrigger points have been shown to be active in many myofascial pain syndromes. Treatment of trigger point pain and dysfunction may be explained through the mechanisms of central and peripheral paradigms. This study aimed to investigate whether the mind/body treatment of Neuro Emotional Technique (NET) could significantly relieve pain sensitivity of trigger points presenting in a cohort of chronic neck pain sufferers.MethodsSixty participants presenting to a private chiropractic clinic with chronic cervical pain as their primary complaint were sequentially allocated into treatment and control groups. Participants in the treatment group received a short course of Neuro Emotional Technique that consists of muscle testing, general semantics and Traditional Chinese Medicine. The control group received a sham NET protocol. Outcome measurements included pain assessment utilizing a visual analog scale and a pressure gauge algometer. Pain sensitivity was measured at four trigger point locations: suboccipital region (S); levator scapulae region (LS); sternocleidomastoid region (SCM) and temporomandibular region (TMJ). For each outcome measurement and each trigger point, we calculated the change in measurement between pre- and post- treatment. We then examined the relationships between these measurement changes and six independent variables (i.e. treatment group and the above five additional participant variables) using forward stepwise General Linear Model.ResultsThe visual analog scale (0 to 10) had an improvement of 7.6 at S, 7.2 at LS, 7.5 at SCM and 7.1 at the TMJ in the treatment group compared with no improvement of at S, and an improvement of 0.04 at LS, 0.1 at SCM and 0.1 at the TMJ point in the control group, (P < 0.001).ConclusionAfter a short course of NET treatment, measurements of visual analog scale and pressure algometer recordings of four trigger point locations in a cohort of chronic neck pain sufferers were significantly improved when compared to a control group which received a sham protocol of NET. Chronic neck pain sufferers may benefit from NET treatment in the relief of trigger point sensitivity. Further research including long-term randomised controlled trials for the effect of NET on chronic neck pain, and other chronic pain syndromes are recommended.Trial RegistrationThis trial has been registered and allocated the Australian Clinical Trials Registry (ACTR) number ACTRN012607000358448. The ACTR has met the requirements of the ICMJE's trials registration policy and is an ICMJE acceptable registry.