1/39. Mucoid cystic degeneration of the cruciate ligament.A 35-year-old man was seen with pain in the back of the knee. MRI showed a mass in the anterior cruciate ligament. biopsy indicated mucoid degeneration. Arthroscopic resection of the ligament was carried out, with relief of symptoms.- - - - - - - - - - ranking = 1keywords = ligament (Clic here for more details about this article) |
2/39. Cervical synovial cysts: case report and review of the literature.The authors describe the case of a 58-year-old man with a 6-month history of severe myelopathy. CT scan and MRI of the spine revealed a cystic formation, measuring about 1 cm in diameter, at C7-T1 at a right posterolateral site at the level of the articular facet. At operation the mass appeared to originate from the ligamentum flavum at the level of the articular facet and was in contact with the dura mater. Once the mass had been removed, there was a significant amelioration of the patient's symptoms. As previously suspected, histological aspect was synovial cyst. Cervical synovial cysts are extremely rare and, as far as we know, only 22 cases have so far been described in the literature. Diagnostic radiological investigations used were CT scan and MRI. At CT scan the most important diagnostic findings are a posterolateral juxtafacet location of the mass, egg-shell calcifications on the wall of the cyst, and air inside the cyst. At MRI the contents of the cyst are iso/hypointense on T1- and hyperintense on T2-weighted images. There may also be a hypointense rim on T2-weighted images, which enhances after i.v. administration of gadolinium. Surgical treatment consists of removal of the mass. Fixation of the vertebral segments involved is not always necessary.- - - - - - - - - - ranking = 0.16666666666667keywords = ligament (Clic here for more details about this article) |
3/39. Craniocervical junction synovial cyst associated with atlanto-axial dislocation--case report.A 51-year-old female presented with a rare case of synovial cyst at the cruciate ligament of the odontoid process associated with atlanto-axial dislocation, manifesting as a history of headache and numbness in her left extremities for 5 months, and progressive motor weakness of her left leg. neuroimaging studies revealed a small cystic lesion behind the dens, which severely compressed the upper cervical cord, and atlanto-axial dislocation. The cyst was successfully removed via the transcondylar approach. C-1 laminectomy and foramen magnum decompression were also performed. Posterior craniocervical fusion was carried out to stabilize the atlanto-axial dislocation. The cyst contained mucinous material. Histological examination detected synovial cells lining the fibrocartilaginous capsule. Synovial cysts of this region do not have typical symptoms or characteristic radiographic features. Careful preoperative evaluation of the symptoms and a less invasive strategy for removal of the cyst are recommended.- - - - - - - - - - ranking = 0.16666666666667keywords = ligament (Clic here for more details about this article) |
4/39. Case report ganglion cysts of the bilateral cruciate ligaments.ganglion cysts originating from the cruciate ligaments have been reported rarely. A 38-year-old woman developed symptoms of knee pain with 10 degrees loss of knee extension. Preoperative magnetic resonance imaging showed a well-demarcated cystic mass surrounding the posterior cruciate ligament so clearly that further examination was not recommended. Because examination under anesthesia confirmed full extension of the knee, we presumed that pain produced by compression caused the diminished extension, and that mechanical block was not the reason. During arthroscopic examination, a mass was impinged between the anterior cruciate ligament and the intercondylar notch when extension of the knee was attempted. The mass was resected and immediate improvement was noted. The patient had experienced the same episode in the contralateral knee and removal of a ganglion cyst on the cruciate ligament 10 years ago. At the latest follow-up she was completely symptom free in both knees without any sign of recurrence.- - - - - - - - - - ranking = 1.3333333333333keywords = ligament (Clic here for more details about this article) |
5/39. synovial cyst of the transverse ligament of the atlas in a patient with os odontoideum and atlantoaxial instability.STUDY DESIGN: A case report and review of the literature. OBJECTIVE: To describe the diagnosis and successful treatment of a synovial cyst arising from the transverse ligament in a patient with os odontoideum and atlantoaxial instability. SUMMARY OF BACKGROUND DATA: Synovial cysts arising from the transverse ligament of the atlas are extremely rare. Development of a synovial cyst is thought to be attributable to degenerative changes of the C1-C2 facet joints or to microtrauma. Direct excision of the cyst is the only treatment cited in previous reports. methods: A synovial cyst arising from the transverse ligament of the atlas in a 45-year-old man with os odontoideum and atlantoaxial instability was treated surgically with posterior atlantoaxial fusion alone. The magnetic resonance images, surgical treatment, and related literature are reviewed. RESULTS: Preoperative magnetic resonance images of the cervical spine showed a large cystic mass located ventral to the cord arising at the level of the transverse ligament of the atlas: the mass was of low signal intensity on T1-weighted images, was of high signal intensity on T2-weighted images, and was enhanced marginally with gadolinium-DTPA on T1-weighted images. Spontaneous regression of the cyst was identified on the follow-up magnetic resonance images taken 3 months after C1-C2 posterior wiring and fusion. CONCLUSIONS: A patient with a synovial cyst arising at the C1-C2 junction ventrally at the level of the transverse ligament showed spontaneous regression of the lesion after C1-C2 posterior wiring and fusion.- - - - - - - - - - ranking = 1.5keywords = ligament (Clic here for more details about this article) |
6/39. L5 radicular pain related to a cystic lesion of the posterior longitudinal ligament.A 35-year-old man with a long history of left L5 radicular pain was found to have an intraspinal cystic lesion causing radicular compression. magnetic resonance imaging demonstrated a round lesion situated in the anterior epidural space, with uniform high signal intensity on T2-weighted sequences characteristic of a cystic lesion. During surgery a liquid-containing cyst originating from the posterior longitudinal ligament was punctured and resected. The histologic aspect was that of a ganglion cyst without synovial layers. The radiologic differential diagnoses are discussed.- - - - - - - - - - ranking = 0.83333333333333keywords = ligament (Clic here for more details about this article) |
7/39. Development of a synovial cyst following anterior cruciate ligament reconstruction.The use of bone-patellar tendon-bone allograft or autograft in anterior cruciate ligament (ACL) reconstruction is an accepted method of repair of the ACL-deficient knee with few complications. We report an unusual complication associated with this technique, the development of synovial fistula and cyst associated with the use of nonabsorbable suture material.- - - - - - - - - - ranking = 0.83333333333333keywords = ligament (Clic here for more details about this article) |
8/39. Ganglion cyst in the ligamentum flavum of the cervical spine causing myelopathy: report of two cases.BACKGROUND: Ganglion cyst in the ligamentum flavum is commonly found in the lower lumbar region; occurrence in the cervical region is extremely rare. We report two cases of ganglion cyst in the cervical region and the clinical, pathological, and radiological findings. methods: The first patient was an 81-year-old man who was admitted to our hospital with gradually progressive gait disturbance and radiating pain in both arms and legs, which was dominant on the left side. The second patient was a 65-year-old man with progressive muscle weakness of the extremities who was admitted with radiating pain in the right arm. In both cases, the cervical spinal cord had been compressed by the cystic mass with degeneration of the ligamentum flavum (the former left, the latter right) at the level of C3-4. RESULTS: The extradural-intraspinal cystic masses, which were revealed by computed tomography (CT) and magnetic resonance imaging (MRI) to be situated antero-laterally to the cervical laminae, were removed surgically without difficulty. After surgery, the symptoms and neurologic signs improved in both cases. CONCLUSIONS: Ganglion cyst in the ligamentum flavum of the cervical spine is a very rare lesion causing radiculo-myelopathy. In both our cases, a correct diagnosis could be established preoperatively based on CT myelogram and MRI findings, and the results of surgery were excellent.- - - - - - - - - - ranking = 1.1666666666667keywords = ligament (Clic here for more details about this article) |
9/39. Degenerative intraspinal cyst of the cervical spine: case report and literature review.STUDY DESIGN: A case report and a literature review are presented. OBJECTIVE: To describe and review the clinical presentations, characteristic findings from imaging studies, and treatment of synovial and ganglion cysts arising within the cervical spinal canal. SUMMARY OF BACKGROUND DATA: Synovial and ganglion cysts in the cervical spine are rare. To the authors' knowledge, 24 sporadic cases in all, designated by various terms, have been reported in the literature. methods: Three cases of synovial and ganglion cysts in the cervical spine are reported as well as a review of the literature. RESULTS: Characteristic findings from imaging studies included a fluid-containing extradural lesion demonstrated on magnetic resonance images and gas content in the lesion demonstrated on ordinary or sagittally reconstructed computed tomography images. A laminectomy with removal of the cyst was the treatment of choice in most cases. CONCLUSIONS: Neither communication with an adjacent facet joint nor histopathology of the cyst wall provides a persuasive basis for differentiating ganglion, synovial cyst, and cyst arising from the ligaments. To accommodate the varied presentations, the authors propose a comprehensive term for these lesions: "degenerative intraspinal cyst."- - - - - - - - - - ranking = 0.16666666666667keywords = ligament (Clic here for more details about this article) |
10/39. Multiple ganglion cysts of the knee.Only solitary ganglion cysts within the knee have been reported. Multiple ganglion cysts within the same knee have not been reported. The author describes a patient with 2 ganglion cysts, one in the anterior cruciate ligament and one in the lateral meniscus of the same knee. Surgery was performed because of recurrent pain and functional disability.- - - - - - - - - - ranking = 0.16666666666667keywords = ligament (Clic here for more details about this article) |
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