No abstract available.
Joints*

No abstract available.
Axis, Cervical Vertebra* ; Spondylolysis*

The primary aims of fracture treatment include the restoration of normal anatomy and a return of function to the injuried as early as possible. In pilon fracture, various methods of treatment were developed to accomplish this purpose. Fibular fixstion is a rarely accepted mehtod in the treatment of pilon fractures because it can't provide rigid internal fixation, But it might be indicated when an open wound was : present medially over the distal tibia, the ligamentous attachments of distal fibula and medial malleolus to talus and calcaneus and of the distal tibiofibular syndesmosis are largely intict. Utilizing these attachment, Fibular fixation can stabilize comminuted fractures of distal tibia affecting ankle joint. This procedure is so effective and simple The author has used this technique in three instances for two years with excellent results. This is not an original method, but worthy of being remindful of the literature.
Ankle Joint ; Ankle ; Calcaneus ; Fibula ; Fractures, Comminuted ; Ligaments ; Methods ; Talus ; Tibia ; Tibial Fractures ; Wounds and Injuries

Cysticercosis is due to a larva of Taenia Solium. It is frequently reported in developing countries. It usually affects subcutaneous tissue, muscles and brain. But, spinal cysticercosis is rare and is usually diagnosed at surgery. Authors experienced a case of spinal cysticercosis accompanied with spondylolistheses at the same level. Space occupying lesion and arachnoiditis, confirmed by MMCT and MRI, were noted at the same level of spondylolistheses. So, it was very hard to make dicision whether we should open up the dura or not.
Arachnoid ; Arachnoiditis ; Brain ; Cysticercosis ; Developing Countries ; Larva ; Magnetic Resonance Imaging ; Muscles ; Spondylolisthesis ; Subcutaneous Tissue ; Taenia solium

We Studied 48 patients(62 hips) who were performed hip arthroplasties at the Department of Orthopaedic Surgery, Soonchunhyang University hospital from February 1990 to August 1992. The purpose of the present study was to compare canal filling ratio and clinical results of cases treated by cementless femoral stem with 19 Harris Galante(straight stem), 23 Anatomic(curved stem) and 20 Multilock (straight stem). The follow-up periods ranged from 12 months to 36 months. We assessed canal filling at metaphysis, mid-stem and distal canal, and clinical results according to canal filling. The results were as follows ; 1. The average filling ratio of the medullary canal by each type of stem in the coronal plane were as follows. Harris Galante ; 80. 5%, Anatomic ; 79. 4%, Multilock; 79. 8% in metaphysis. Harris Galante ; 88. 7%, Anatomic ; 88. 3%, Multilock ; 87. 3% in mid-stem. Harris Galante ; 95. 1%, Anatomic 90. 2%, Multilock ; 94. 5% in distal canal. At distal canal, the average canal filling of Harris Galante and Multilock were more excellent than Anatomic in coronal plane. 2. The average filling ratio of the medullary canal by each type of stem in the saggital plane were as follows. Harris Galante ; 64. 0%, Anatomic 69. 6%, Multilock ; 68. 6% in metaphysis. Harris Galante ; 79. 6%, Anatomic; 84. 5%, Multilock; 80. 2 in mid-stem. Harris Galante ; 78. 3%, Anatomic ; 82. 6%, Multilock ; 84. 5% in distal canal. At mid-stem, the average canal filling of Anatomic was more excellent than Multilock and Harris Galante. At metaphysis and distal canal, the average canal filling of Anatomic and Multilock were more excellent than Harris Galante in saggital plane. 3. The average Harris's hip scores of each type of stem at the final follow-up was 89. 9 in Harris Galante, 90. 3 in Anatomic and 91. 9 points in Multilock. There was no significance statistically(p>0.05). 4. The correlation between the average canal filling and thigh pain was not statistically significant (p>0. 05).
Arthroplasty ; Follow-Up Studies ; Hip ; Thigh

Ganglion cysts of the cruciate ligament are quite rare. Ganglion cysts on the anterior cruciate ligament(ACL) should be suspected in any patient having pain and clicking sensation during terminal knee extension. A few cases have been reported concerning ganglion cysts present on the surface of the anterior cruciate ligament. We report three cases of a ganglion cysts on the ACL that was treated with arthroscopic excision.
Anterior Cruciate Ligament ; Ganglion Cysts ; Humans ; Knee ; Ligaments ; Sensation

In 1971, for purpose of reduction of peak stress occuring in cement and trabecular bone of the acetabulum, Harris reported a series of metal-backed acetabular components with removable polyethylene liners that could be replaced if excessive wear occured. Modular designs of hip prostheses have become popular recently, but they introduce the risk of disassembly of the components postoperatively. And introduce of loosening and infection of femoral or acetabular components by debris of polyethylene liner. We report a case of mechanical disassembly of polyethylene liner in cementless metal backed cup, and review previously reported articles.
Acetabulum ; Hip Prosthesis ; Polyethylene

ABSTRACT OBJECTIVES: We report event-related functional magnetic resonance imaging(fMRI) methodology to investigate human brain activity during motor imagery. METHODS: A 1.5 Tesla clinical MR scanner was used in the acquisition of a series of T2* weighted MR images covering the whole brain. Blood oxygenation level-dependent(BOLD) signal changes associated with the imagery event were subsequently detected while healthy right-handed subjects imagined clenching of a right hand cued by auditory stimulus. RESULTS: Group analysis across nine right-handed subjects revealed activations in the medial and superior frontal gyri, cuneus, insula, middle/superior temporal gyri, and anterior cingulate gyri. Bilateral primary motor, premotor and supplementary motor areas exhibited event-related MR signal changes. Although unilateral hand clenching was imagined, bilateral activation of eloquent motor areas was observed. The proposed method also allowed for the visualization of subcortical areas, such as putamen, globus pallidus and thalamus, responsive to the event of motor imagery. CONCLUSION: The major cortical and subcortical areas in the motor pathways were identified and visualized during motor imagery event. Our results suggest that motor imagery and actual movement share common neural substrates.
Brain ; Brain Mapping ; Efferent Pathways ; Globus Pallidus ; Hand ; Humans ; Magnetic Resonance Imaging* ; Oxygen ; Putamen ; Thalamus

Epidural hemangioma is a rare neoplasm which consists of 4% of epidural tumors and 12% of hemangiomas of vertebral column. But most of them are secondary involvement of epidural space by vertebral hemangioma and pure epidural hemangioma is very rare. Reported cases involve thoracic & lumbar level. Neural foramen & paraspinal region are usually invaded by the tumor mass. Clinical symptoms are similar to simple low back pain or disc herniation. Myelography, CT & MRI are helpful to make diagnosis but pathologic finding is important for final diagnosis. Authors are reporting a case of epidural hemangioma which was difficult to differentiate from HIVD by symptomatology & radiologic findings alone.
Diagnosis ; Epidural Neoplasms ; Epidural Space ; Hemangioma ; Low Back Pain ; Magnetic Resonance Imaging ; Myelography ; Spine

Lipoma Arborescens is rarely encountered in hip joint. This term was first used by Mueller in 1838, to describe a fatty trmor of the knee which presented branched villous-like projection. The etiology is unknown, Suggests its probable reationship to tuberculosis, rheumatoid arthitis, trauma, chronic inflammation, diabetes mellitus and degenerative arthritis. It frequently involves knee joint, hand, wrist, foot, ankle, tendon sheath and hip joint. It usually presents bilaterally. Their nonspecific symptoms and signs are mild pain, joint swelling with minimum effusion, festriction of joint motion, redness, local heating and crepitus. We experienced a case of lipoma arborescens of hip joint, which was treated by synovectomy with excision of lesion.
Ankle ; Arthralgia ; Diabetes Mellitus ; Foot ; Hand ; Heating ; Hip Joint ; Hip ; Hot Temperature ; Inflammation ; Joints ; Knee ; Knee Joint ; Lipoma ; Osteoarthritis ; Tendons ; Tuberculosis ; Wrist