Cases reported "Joint Instability"

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1/66. A clinico-pathological study of cervical myelopathy in rheumatoid arthritis: post-mortem analysis of two cases.

    Two patients who developed cervical myelopathy secondary to rheumatoid arthritis were analyzed post mortem. One patient had anterior atlanto-axial subluxation (AAS) combined with subaxial subluxation (SS), and the other had vertical subluxation (VS) combined with SS. In the patient with AAS, the posterior aspect of the spinal cord demonstrated severe constriction at the C2 segment, which arose from dynamic osseous compression by the C1 posterior arch. A histological cross-section of the spinal cord at the segment was characterized by distinct necrosis in the posterior white columns and the gray matter. In the patient with VS, the upper cervical cord and medulla oblongata showed angulation over the invaginated odontoid process, whereas no significant pathological changes were observed. At the level of SS, the spinal cord was pinched and compressed between the upper corner of the vertebral body and the lower edge of the lamina. Histologically, demyelination and gliosis were observed in the posterior and lateral white columns.
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keywords = upper
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2/66. Anterolateral approach for cervical spinal cord tumors via an anterior microforaminotomy: technical note.

    A cervical spinal cord tumor located anteriorly to the spinal cord is conventionally approached through an anterior vertebrectomy followed by bone-graft reconstruction. In order to make a surgical approach minimally invasive, an anterior microforaminotomy technique is used for removal of a tumor located anterior to the spinal cord. When the senior author's experience increased with anterior microforaminotomy for cervical radiculopathy and myelopathy, it was observed that intradural pathology could also be taken care of through the anterior microforaminotomy which did not require bone fusion or postoperative immobilization. For tumor resection, the anterior foraminotomy is made like a flask-shaped hole, with a smaller outer opening similar to that for radiculopathy but incorporating a larger inner opening to accommodate the extent of the tumor in a longitudinal and transverse dimension. The surgical technique is described with two illustrated patients. Postoperatively, the patients did not require a cervical brace. Although their postoperative discomfort was minimal, they were kept in the hospital overnight postoperatively. Spinal stability was well maintained 6 weeks postoperatively. Postoperative imaging of the spine confirmed resection of the tumors. Anterior microforaminotomy is a minimally invasive microsurgical technique which can provide safe and successful removal of tumors located anteriorly to the spinal cord.
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ranking = 2.9948805506365
keywords = discomfort
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3/66. Aneurysms and hypermobility in a 45-year-old woman.

    EDS type IV presents a diagnostic and therapeutic challenge to the primary care physician, surgeon, and rheumatologist. In patients for whom the diagnosis is known, avoidance of trauma, contact sports, or strenuous activities, joint bracing and protection, and counseling on contraception are helpful preventive strategies. In patients presenting with vascular, gastrointestinal, or obstetric complications, a history of hypermobility and skin fragility (easy bruising, abnormal scarring, poor wound healing) should lead to a suspicion of this diagnosis, and to caution in the use of certain invasive diagnostic and operative techniques. Efforts should be made to examine family members. Most importantly, when caring for such patients, the acute onset of headaches, chest pain, shortness of breath, and abdominal pain should arouse suspicion of a potentially catastrophic vascular or visceral event.
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ranking = 0.12388734820557
keywords = headache, chest
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4/66. A technical solution for secondary arthritis due to chronic proximal tibiofibular joint instability.

    Chronic instability of the proximal tibiofibular joint is an uncommon diagnosis and not frequently reported in the literature. The management options of this joint instability, complicated with secondary arthritis, have rarely been discussed and consist mainly of fibular head resection or arthrodesis of this joint. We describe a new technical procedure for addressing both the instability and the joint secondary arthritis. Stability of the joint is achieved by ligament reconstruction using a biceps femoris split passed through the tibial metaphysis and fixated back to the fibular head using bone anchors. The arthritic changes are addressed by interposition of a vascularized fascia lata strip. The described procedure offers a firm stabilization with no need for postoperative restrictions and an alternative to the inadvisable joint arthrodesis or resection.
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ranking = 0.21256707541181
keywords = back
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5/66. Case study: acceleration/deceleration injury with angular kyphosis.

    OBJECTIVE: To discuss the case of a patient who received upper cervical chiropractic care after trauma-induced arcual kyphosis in the cervical spine. A practical application of conservative management for posttrauma cervical spine injury in the private office setting is described. Clinical Features: A 17-year-old female patient suffered an unstable C3/C4 motor segment after a lateral-impact motor vehicle collision. Additional symptoms on presentation included vertigo, tinnitus, neck and shoulder pain, and confusion. Intervention and Outcome: Conservative management consisted exclusively of upper cervical-specific adjustments guided by radiographic analysis and paraspinal bilateral skin temperature differential analysis of the cervical spine. During 10 weeks of care and 22 office visits, all symptoms subsided and the instability of C3/C4 motor segment appeared to be completely resolved. CONCLUSION: This study provides support for the use of upper cervical chiropractic management in cervical spine trauma cases. The clinical work-up consisted of physical examination, radiographic analysis, computer-administered and scored cognitive function testing, and audiometric examination. After conservative care, these examinations were repeated and demonstrated that the objective findings concurred with the subjective improvements reported by the patient.
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keywords = upper
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6/66. Results of a longer than 10-year follow-Up of patients with rheumatoid arthritis treated by occipitocervical fusion.

    STUDY DESIGN: Evaluation of results a longer than 10-year follow-up of patients with upper cervical lesions due to rheumatoid arthritis who underwent occipitocervical fusion. OBJECTIVE: To determine the final outcome of patients with upper cervical lesions due to rheumatoid arthritis treated by occipitocervical fusion. SUMMARY OF BACKGROUND DATA: There are few studies reporting the final outcome of patients with rheumatoid arthritis treated by occipitocervical fusion and observed for longer than 10 years. methods: The subjects were 16 patients with rheumatoid arthritis with myelopathy who underwent occipitocervical fusion with a rectangular rod more than 10 years ago. All 16 patients had irreducible atlantoaxial dislocation, and 11 also had vertical dislocation of the axis. All patients had preoperative nuchal pain, and were classified into Class II (two patients), Class IIIA (nine patients), and class IIIB (five patients) according to Ranawat's preoperative neurologic classification. RESULTS: The atlas-dens interval remained the same as immediately after surgery. Vertical dislocation returned to the preoperative condition, despite successful surgical correction. Preoperative occipital pain disappeared or was reduced in all cases. Myelopathy improved in 12 of the 16 patients (75%) by more than one class in the Ranawat preoperative neurologic classification. survival rate at 10 years after surgery was 38%; mean age at death was 70.7 years. The postoperative periods during which patients could walk by themselves ranged from 6 months to 13 years (mean, 7.5 years). CONCLUSIONS: Occipitocervical fusion for patients with rheumatoid arthritis is useful for decreasing nuchal pain, reducing myelopathy, and improving prognosis.
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keywords = upper
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7/66. knee position feedback: its effect on management of pelvic instability in a stroke patient.

    PURPOSE: This is a case study of improvement in pelvic instability due to a stroke, with treatment. The patient had narrow knee-to-knee distance due to weakness in the pelvic muscles resulting in a narrow base of support. METHOD: Treatment was focused on pre-gait activities to improve upright posture control followed by gait training involving extrinsic auditory feedback about knee-to-knee distance. RESULTS: After two weeks of therapy with feedback technique incorporated in a functional context of gait therapy, the patient was able to advance his left lower extremity with proper foot placement. Laboratory measurements showed that step width and stride length gotten better after treatment as well. CONCLUSION: An inclusion of feedback information about knee-to-knee distance could benefit gait training of patients with pelvic instability.
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ranking = 1.4879695278827
keywords = back
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8/66. Potential complication of bioabsorbable screw fixation for osteochondritis dissecans of the knee.

    The 3 cases presented describe loosening or failure of bioabsorbable screws in the treatment of osteochondritis dissecans (OCD). In case 1, a 17-year-old boy with OCD of the medial femoral condyle was treated with bioabsorbable screw fixation. Six months after surgery, the patient had an acute episode of pain with effusion. Arthroscopic examination revealed 2 of the 4 screws backed out, causing cartilage damage to the corresponding tibial plateau. The shafts of the remaining 2 screws had completely absorbed, leaving the unabsorbed screw heads as intra-articular loose bodies in the knee. Unpredictable and inconsistent degradation of the screws is believed to be the mechanism for screw back-out and cartilage damage.
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ranking = 0.42513415082362
keywords = back
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9/66. No neurological involvement for more than 40 years in klippel-feil syndrome with severe hypermobility of the upper cervical spine.

    We report the case of a 42-year-old woman with klippel-feil syndrome, who showed severe hypermobility of the upper cervical spine without neurological involvement for more than 40 years. Radiographs revealed the presence of the odontoid bone and fusion of the atlas, odontoid bone, and occiput. Congenital fusion was present from the axis to C5 as a block vertebra. Lateral flexion-extension radiographs revealed severe hypermobility at the junction between the odontoid bone and the axis. Prophylactic surgical stabilization has been recommended in patients with severe hypermobility, but adjacent disc problems may possibly occur at the unfused levels in the future. We believe that early prophylactic stabilization should not be indicated for klippel-feil syndrome without neurological involvement only because of hypermobility.
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ranking = 2.5
keywords = upper
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10/66. One-stage posterior decompression and fusion using a Luque rod for occipito-cervical instability and neural compression.

    STUDY DESIGN: Original article. OBJECTIVE: The authors present seven cases who underwent one-stage suboccipital, C1 and/or C2 posterior decompression and fusion by Luque rod, wiring and autogenic bone graft for occipito-cervical instability and neural compression. SETTING: Chang Gung University and Medical Center at Kaohsiung, taiwan. METHOD: Since January 1996, 20 cases of craniovertebral and upper cervical spinal instability were encountered. Seven of these cases had no neurological improvment under Cone-Barton Skeletal traction. Imaging studies revealed poor reduction with persistent neural compression. One patient underwent unsuccessful anterior trans-oral vertebrectomy for decompression. All patients underwent posterior suboccipital craniectomy, C1 and/or C2 laminectomy for decompression. Contoured Luque rod with wiring and autogeneic bone graft was used for craniocervical fusion. After surgical treatment, halo-vest or sterno-occipito-mandibular immobilizer (SOMI) was used for 3-6 months. RESULTS: Suboccipital craniectomy and C1 laminectomy could afford a 30-50% increment of anteroposterior diameter in the neural canal and effective decompression of the low medulla and cord. All patients made neurological improvement. The asia-MIS scores improved from pre-operative 49 (mean) to 78. Four patients can walk without any support. There were no major complications except for one case requiring readjustment of the halo-vest brace. CONCLUSION: The authors recommend this procedure as one choice for relieving craniocervical instability with neurological compromise. A programmed rehabilitation will afford better neurological improvement.
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keywords = upper
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