Acrylic bone cement is now widely used in surgery for many purposes. Therefore, the effect of bone cement on the growth plate of a growing bone may be an interesting subject, particularly in the orthopedic field. The authors carried out an experiment to study the effect of bone cement on the growth plate of the bone, using 32 growing rabbits weighing from 800 to 1000 gm, which were divided into 2 main groups. In Group I, which was the control group, the growth plates were injured mechanically by inserting a Kirschner wire and a stainless screw, 1.5 mm and 2.5 mm in diameter, respectively, which were then removed. In Group II, the growth plates were also injured by the same method as in Group I, and bone cement was inserted into the holes made by the insertion of the Kirschner wire and the screw. Then the histological findings of the injured plates were studied at 2, 4, 6 and 10 weeks after injury. Following observations were made. 1. In Group I, in which the growth plates were only mechanically damaged, the histologic changes were localized only in that portion of the plate which had been injured by a wire or a screw, leaving the rest of the plate relatively normal. In Group II, the extent and severity of the injury were more wide and severe. 2. Proliferation of mesenchymal fibroblasts and deformity of the growth plate were more severe in Group II. 3. In both groups the extent and severity of growth plate injury were more marked when injured by a screw.
Congenital Abnormalities ; Fibroblasts ; Growth Plate ; Methods ; Orthopedics ; Polymethyl Methacrylate ; Rabbits

The inflammatory pseudotumor of the lung is a non-neoplastic pulmonary mass lesion, composed of a variey of inflammatory cells including plasma cells, histiocytes(often xanthomatous), mast cells, lymphocytes, and spindle shaped mesenchymal cells. Although the pathogenetic etiology of this lesion is not estabilished, it has been claimed that it is associated with local inflammatory reaction. From 1984 to 1986, we experienced three cases of pathologically confirmed inflammatory pseudotumor of the lung. All three cases revealed similar gross and microscopic features, with only minor differences in components on microscopic level. All specimens were products of lobectomy. They showed a relatively well defined, yellowish white and solid mass, measuring about 5.0 cm in diameter. Histologically, the lesions, which were well demarcated from the uninvolved region, were characterized by dense infiltration of plasma cells and xanthomatous histiocytes admixed with lymphocytes, spindle shaped mesenchymal cells and polymorphonuclear leukocytes. At periphery, bronchi and bronchioles were entrapped by these cells. In focal areas, spindle shaped mesenchymal cells were aggregated, resulting in formation of thick bundles in which plasma cells were infiltrated. In case 1 and 2, myxoid change of stromal tissue was noted. Also noted were foci of osteoid metaplasia of the stromal layer in case 1. The authors report three cases of inflammatory pseudotumor of the lung, with comparative observation of each case, associated with literature review, with emphasis on the pathogenesis of this rather infrequent lesion. And some reviews were made on differential diagnosis between inflammatory pseudotumor and non-neoplastic or neoplastic lung mass including so called sclerosing hemangioma.
Diagnosis, Differential

The inflammatory pseudotumor of the lung is a non-neoplastic pulmonary mass lesion, composed of a variey of inflammatory cells including plasma cells, histiocytes(often xanthomatous), mast cells, lymphocytes, and spindle shaped mesenchymal cells. Although the pathogenetic etiology of this lesion is not estabilished, it has been claimed that it is associated with local inflammatory reaction. From 1984 to 1986, we experienced three cases of pathologically confirmed inflammatory pseudotumor of the lung. All three cases revealed similar gross and microscopic features, with only minor differences in components on microscopic level. All specimens were products of lobectomy. They showed a relatively well defined, yellowish white and solid mass, measuring about 5.0 cm in diameter. Histologically, the lesions, which were well demarcated from the uninvolved region, were characterized by dense infiltration of plasma cells and xanthomatous histiocytes admixed with lymphocytes, spindle shaped mesenchymal cells and polymorphonuclear leukocytes. At periphery, bronchi and bronchioles were entrapped by these cells. In focal areas, spindle shaped mesenchymal cells were aggregated, resulting in formation of thick bundles in which plasma cells were infiltrated. In case 1 and 2, myxoid change of stromal tissue was noted. Also noted were foci of osteoid metaplasia of the stromal layer in case 1. The authors report three cases of inflammatory pseudotumor of the lung, with comparative observation of each case, associated with literature review, with emphasis on the pathogenesis of this rather infrequent lesion. And some reviews were made on differential diagnosis between inflammatory pseudotumor and non-neoplastic or neoplastic lung mass including so called sclerosing hemangioma.
Diagnosis, Differential

A case of benign lichenoid keratosis(BLK) developed in a 25-year-old female is presented. She had two erythematous plaques with slightly verrucous surfaces on the lips for 4 weeks. A biopsy specirnen taken from the periphery of the lesion revealed a focal parakeratosis, the absence of granular cells, and hydropic degeneration of the basal cells in the epidermis. The upper dermal infiltrate composed chiefly of lymphacytes intermingled with a few histiocytes was also seen. The direct immunofluorescent study showed depositions of a few cytoid bodies and fibrin around the areas of the dermoepidermal junction. These plaques on her lips, demonstrating lichenoid tissue changes, cleared in 8 weeks from the evalution, without any treatment.
Adult ; Biopsy ; Epidermis ; Female ; Fibrin ; Histiocytes ; Humans ; Keratosis* ; Lip ; Parakeratosis

No abstract available.

No abstract available.
Arthroplasty* ; Joints*

The ankle joint plays important biomechanical role in erect position or ambulation. The ankle injury includes bony structures with articular surface, ligaments and soft tissue injury. So the goal of treatment is anatomical reduction of ankle mortise. Fifty two patients of ankle fractures which were admitted and treated in Seoul Adventist Hospital from January, 1980 to December, 1984, were analysed in the clinical and radiological aspect. The results obtained from this study were as follows; l. Of the 52 cases, male was 39 cases(75.0%) and female was 13 cases(25.0%). The average age of the patients was 33 years with range from 18 years to 75 years. 2. The most common cause of injury was traffic accidident. Nexts were fall down, sports injury, slip down and industrial injury in orders. 3. The most common type of the ankle fractures, according to the classification of Lauge-Hansen, was supination-external rotation type(40.4%). 4. 36 cases(69.2%) were treated with open reduction and internal fixation and 16 cases(30.8%) were treated with closed reduction. Poor outcome seemed closely related to the severity of the injury and degree of fracture displacement. 5. Accurate reduction and rigid internal fixation of the lateral malleolus without shortening was important factor. Classification of Lauge-Hansen was useful in the diagnosis and treatment of the ankle fractures.
Ankle Fractures ; Ankle Injuries ; Ankle Joint ; Ankle ; Athletic Injuries ; Classification ; Clinical Study ; Diagnosis ; Female ; Humans ; Ligaments ; Male ; Seoul ; Soft Tissue Injuries ; Walking

The posterior cruciate ligament plays as basic stabilizer of the knee. Therefore the knee becomes unstable when tibial insertion of the posterior cruciate ligament is avulsed. The diagnosis may be delsyed or missed because of surgeon's 1sck of awareness or rare condition. The authors treated seven cases of avulsion fracture of posterior cruciate ligsment at the tibial attachment ares ranged from ten to thirty-two years. There were five male and two female. The results were as follows : 1. The cause of all seven cases injury was traffic accident. 2. The physical findings were seven positive posterior drawer test, seven cases of abrasion or laceration over the anterior proximal tibial surface and antero-medial surfsce of the knee joint. 3. The associated injury was comminuted fracture of the tibia and femur (1 case), rupture of collateral ligsment and comminuted fracture of the tibia (1 case) and zygomatic fracture (1 case). 4. The treatment methods were four cancellous fixation, one K-wire fixation after epiphyseal plate fusion but each one pull out wire and dexon suture before epiphyseal plate fusion. 5. The motion of knee joint was within normal limit and no instsbility was inspected at the three months after reduction.
Accidents, Traffic ; Diagnosis ; Female ; Femur ; Fractures, Comminuted ; Growth Plate ; Humans ; Knee Joint ; Knee ; Lacerations ; Male ; Posterior Cruciate Ligament ; Rupture ; Sutures ; Tibia ; Zygomatic Fractures

No abstract available.
Fractures, Spontaneous* ; Hyperparathyroidism, Primary*

Intra-uterine fracture of normal bone is extremely rare. It was reported few cases in the other contries, but it was very rare in Korea. It is difficult to distinguish it from birth fracture and the other fractures or deformities seen at birth. The authors experienced a case of intra-uterine fracture of the femur in the middle third of the shaft, with abundant callus formation in infant without serious injury to the mother.
Bony Callus ; Congenital Abnormalities ; Femur ; Humans ; Infant ; Korea ; Mothers ; Parturition