You are in: eMedicine Specialties > Pediatrics: Surgery > General Surgery TorticollisArticle Last Updated: Feb 15, 2008AUTHOR AND EDITOR INFORMATIONAuthor: Amulya K Saxena, MD, Attending Pediatric Surgeon, Department of Pediatric Surgery, Medical University of Graz, Austria Amulya K Saxena is a member of the following medical societies: European Pediatric Surgeons Association, German Society of Pediatric Surgery, German Society of Surgery, and International Pediatric Endosurgery Group Editors: Diana Farmer, MD, Associate Professor, Departments of Clinical Surgery, Pediatrics, Obstetrics, Gynecology and Reproductive Services, Division of Pediatric Surgery and the Fetal Treatment Center, University of California at San Francisco; Mary L Windle, PharmD, Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy, Pharmacy Editor, eMedicine.com, Inc; Nicholas A Shorter, MD, Professor of Clinical Surgery and Clinical Pediatrics, State University of New York-Downstate University; Division Chief, Department of Surgery, Division of Pediatric Surgery, State University of New York-Downstate Medical Center; H Biemann Othersen Jr, MD, Professor of Surgery and Pediatrics, Emeritus Head, Division of Pediatric Surgery, Medical University of South Carolina; Marleta Reynolds, MD, Professor of Surgery, Feinberg School of Medicine, Northwestern University; Interim Head, Division of Pediatric Surgery, Department of Surgery, Children's Memorial Hospital of Chicago Author and Editor Disclosure Synonyms and related keywords: torticollis, congenital wryneck, unilateral sternocleidomastoid muscle tightness, sternomastoid tumor, congenital muscular torticollis, sternomastoid fibrosis, progressive facial hemihypoplasia, hematomas, plagiocephaly, facial hypoplasia INTRODUCTIONHistory of the ProcedureThe earliest description of torticollis dates back to writings from the ancient Greek civilization. According to Plutarch, Alexander the Great may have had torticollis. ProblemTorticollis is a result of unilateral tightness and shortening of one sternocleidomastoid muscle. A visible or sometimes palpable swelling, often referred to as a sternomastoid tumor, appears in a part of the muscle in infants aged 2-3 weeks. It often persists until they are aged 1 year. It is rarely bilateral and may be seen in older children in whom the mass was not previously identified. FrequencyTorticollis occurs in 0.4% of all births. EtiologyThe etiology is incompletely understood, although several theories have been postulated.1, 2 Reports on the familial transmission of congenital muscular torticollis have been few. An idiopathic intrauterine embryopathy or the intrauterine development of sternocleidomastoid compartment syndrome may be responsible for the sternomastoid fibrosis. PathophysiologyAn end-arterial branch of the superior thyroid artery supplies the middle part of the sternocleidomastoid muscle. Obliteration of this end artery may be responsible for the development of muscle fibrosis. As an alternative, primary trauma that temporarily and acutely obstructs the veins may lead to intravascular clotting in the obstructed venous tree. In infants, this clotting is evidenced by the development of a sternocleidomastoid mass, which eventually disappears and is replaced by fibrous tissue. ClinicalThe mass is generally 1-3 cm in diameter. It is a painless swelling in the substance of the sternocleidomastoid muscle and develops in neonates aged 2-3 weeks. In infants, the tumor is hard, and the patient's head is tilted and flexed to the side of the fibrosis. However, in older children, the tumor is less discrete than it is in younger children, and the sternocleidomastoid muscle appears thickened and foreshortened along its entire length. This thickening restricts rotation and lateral flexion of the neck. Older children compensate for the head tilt by elevating their shoulder to maintain a horizontal plane of vision. The head tilting is further compensated by twisting the neck and back, if required, to maintain a straight line of sight. These compensatory mechanisms do not occur in infants, who do not need to maintain a horizontal plane of vision until they stand up. Also, in older patients, muscular spasms play a role or accompany torticollis. INDICATIONSManagement for torticollis is primarily nonoperative, generally consisting of parental physiotherapy. Rare indications for surgical management include persistent sternocleidomastoid contracture limiting head movement, persistent sternocleidomastoid contracture accompanied by progressive facial hemihypoplasia, and torticollis in children older than 12 months. CONTRAINDICATIONSSurgical management of congenital muscular torticollis is generally avoided until the child is aged at least 1 year,3 until conservative methods (eg, physiotherapy) are unsuccessful, and until other differential diagnoses are excluded. WORKUPLab Studies
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Diagnostic Procedures
Histologic FindingsHistopathologic findings include fibrous replacement of skeletal muscle fibers that undergo atrophy. The degree of fibrosis and its extent or distribution may vary. Even in neonates, the fibrous tissue is mature. This finding indicates that the disease began before birth. TREATMENTMedical therapyMedical therapy involves conservative treatment.6 Sternocleidomastoid fibrosis spontaneously resolves in the vast majority of infants. Physiotherapy may be recommended; however, no evidence shows that this alters the course of the condition. Surgical therapySurgery is performed with the patient under general anesthesia. A 3- to 4-cm transverse skin incision is made about 1 cm over the sternal and clavicular origins of the affected muscle. The platysma is carefully divided along the line of incision to avoid injury to the external jugular vein. The 2 heads of the sternocleidomastoid muscle are dissected free. The muscle is divided using diathermy to prevent bleeding. The platysma is then sutured with absorbable 4-0 skin suture, and the skin is closed with continuous 4-0 nonabsorbable skin suture. COMPLICATIONSHematomas may develop because of inadequate hemostasis during surgery. Incomplete division may cause the condition to persist. OUTCOME AND PROGNOSISRecurrent torticollis after surgery is rare, with a rate of less than 3%. Secondary effects of untreated torticollis include plagiocephaly, facial hypoplasia, and musculoskeletal effects.
FUTURE AND CONTROVERSIESFollow-up should be continued until the torticollis resolves completely, until head and neck movement normalize, and until cervical and thoracic scoliosis is resolved in older children. MULTIMEDIA
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