ABSTRACT
Torn discoid lateral meniscus has been numerously reported in diagnosis and treatment. But discoid meniscus in children of which clinical pictures were thought to be different from adults was rarely known. We experienced 2 cases of discoid meniscus tear in children whose ages were below 4 years old and report with references.
Subject(s)
Adult , Child , Child, Preschool , Humans , Diagnosis , Menisci, TibialABSTRACT
PURPOSE: To determine the types of meniscal tears and type of popliteal muscle attachment in lateral disccid menisci. MATERIALS AND METHODS: MR images from 40 patients with arthroscopically proven disccid meniscal tears were reviewed. The type of capsular attachment of the popliteal muscle in these patients was compared with 100 normal controls. Fourteen men and 26 women were included in this study ranging in age from 8 to 52 yea rs. RESULTS: Disccid mensical tears were divided into five types. Arthroscopic cor- relation revealed that thirty-six cases(90%) of disccid meniscal tears were cor- rectly diagnosed using MR imaging. Peripheral tear wasthe commonest tear type occurring in 13 patients. In 9 of these the meniscal fragment was displaced. Hori- zontal tears occurred in 5, longitudinal tears in 4 and transverse tears in 2 patients. Multiple tears were present in 16 patients with the commonest combi- nation of peripheral and horizontal. Popliteal capsular attachments of disccid mensical tears were more prominent than in the normal control group. CONCLUSION: The types of tears in disccid menisci were different from normal meniscal tears. Peripheral detachment with displacement of torn segments was a very frequent finding in disccid mensical tears. Prominent capsular attachment of popliteal muscles is probably an associated finding in disccid menisci.
Subject(s)
Female , Humans , Male , Classification , Magnetic Resonance Imaging , MusclesABSTRACT
PURPOSE: To evaluate the sensitivity of MR imaging in determining tear sites and degrees in acute anterior cruciate ligament tear. MATERIALS AND METHODS: MR imagings were undertaken in 19 patients who had trauma on their knee joints. All imaging studies were performed within 2 weeks after trauma and compared with operative findings. The degrees of ligament tear were divided into complete and incomplete, and sites of tears were divided into superior middle and inferior portions. MR findings were compared with operative findings. RESULTS: There were 14 cases of complete ligament tear and 5 cases of partial ligament tear. We could diagnose correctly in all 14 cases with complete tear and in 3 of 5 cases with partial tear. The tear sites were correctly predicted in 10 of 14 cases with complete tear(71%) and 1 of 5 cases with par In complete tears, MR findings were transversely or obliquely coursed band-like high signal intensity within the ACL or abrupt Switch over to as indistinct signal intensity. In partial tears, the tear sites could not be evaluated mostly and the tear appeared as linear low signal intensity lesions in posterolateral bundles of AC/. CONCLUSIONS: MR revealed higher sensitivity in determining the degree and sites of ACL tear in complete tear as compared with partial tear.
Subject(s)
Humans , Anterior Cruciate Ligament , Knee Joint , Ligaments , Magnetic Resonance ImagingABSTRACT
PURPOSE: To characterize MR findings of meniscal cysts of the knee. MATERIALS AND METHODS: We retrospectively reviewed knee MR images of surgically confirmed eighteen meniscal cysts. The location and shape of meniscal cysts were evaluated. RESULTS: Six of 18 cases were medial meniscal cysts and 12 of 18 cases were lateral meniscal cysts. Horizontal tears were present in all cases(100%). Four of 18 cases had rounded cysts and 14 of 18 cases had elongated cysts. In 3 of 6 medial meniscal cysts, cysts had dissected into the soft tissues distant from the meniscus, and connecting stalks were visualized. Three of 6 medial meniscal cysts were located adjacent to a meniscal tear. All of the lateral meniscal cysts occurred immediately adjacent to the meniscal tear. CONCLUSION: Meniscal cysts are associated with horizontal meniscal tear. The shapes of meniscal cysts tend to be elongated rather than rounded. Medial meniscal cysts occurred distant from or adjacent to the meniscal tear according to location of the tear. Lateral meniscal cysts occurred adjacent to the meniscal tear.
Subject(s)
Knee , Retrospective StudiesABSTRACT
PURPOSE: To characterize MR findings of meniscal cysts of the knee. MATERIALS AND METHODS: We retrospectively reviewed knee MR images of surgically confirmed eighteen meniscal cysts. The location and shape of meniscal cysts were evaluated. RESULTS: Six of 18 cases were medial meniscal cysts and 12 of 18 cases were lateral meniscal cysts. Horizontal tears were present in all cases(100%). Four of 18 cases had rounded cysts and 14 of 18 cases had elongated cysts. In 3 of 6 medial meniscal cysts, cysts had dissected into the soft tissues distant from the meniscus, and connecting stalks were visualized. Three of 6 medial meniscal cysts were located adjacent to a meniscal tear. All of the lateral meniscal cysts occurred immediately adjacent to the meniscal tear. CONCLUSION: Meniscal cysts are associated with horizontal meniscal tear. The shapes of meniscal cysts tend to be elongated rather than rounded. Medial meniscal cysts occurred distant from or adjacent to the meniscal tear according to location of the tear. Lateral meniscal cysts occurred adjacent to the meniscal tear.
Subject(s)
Knee , Retrospective StudiesABSTRACT
PURPOSE: The objective of the study was to evaluate the characteristic findings in tears of the anterior cruciate ligament(ACL) and associated injury at MR imaging. MATERIALS AND METHODS: We reviewed the findings of MR images and the corresponding arthroscopic results of 32 patients with ACL tears. we evaluated the signal intensity and contour of ACL surrounding bony structures, menisci and associated injury of the knee joint. RESULTS: Complete ACL tears were present in 25 patients and partial ACL tears were in 7 patients. Complete ACL tears showed heterogenously increased signal intensity with contour bulging of the ACL in 14 patients (56%) and without bulging or absence in 11 patients(44%). Most patients torn ACL with contour bulging(12/14) had bone bruise, but only one patient torn ACL without bulging contour had bone bruise. ACL with thin continuous low signal band surrounding heterogenously increased signal intensity suggests partial tear, which was seen in three patients of seven proved partial ACL tears. Combined bone injury in ACL tear were in 23 patients (73%) and most of these(22/23) were at midportion of lateral notch of femur and/or posterior portion of lateral tibial plateu. Deepening of lateral notch of femur were noted in 17 patients(53%). Associated injuries of the other ligaments of knee joint were buckling of the posterior cruciate ligament(16/32, 50%) and tears of the medial collateral ligament(11/32, 34%). Posterior horns of menisci were more frequent site of combined injury within menisci in patients with ACL tear. CONCLUSION: Acute tearing of ACL in MRI is seen as heterogenously increased signal intensity with contour bulging of ACL and combined bone bruises. Patients with torn ACL frequently have various combined injury. In patient with knee injury, these associated or ancillary findings suggest that ACL tear is present.
Subject(s)
Animals , Humans , Anterior Cruciate Ligament , Contusions , Femur , Horns , Knee Injuries , Knee Joint , Knee , Ligaments , Magnetic Resonance ImagingABSTRACT
The application of arthroscopic surgery in wrist is not widely advocated because of technical difficulty. We analysed 11(10 patients) wrists of which were performed arthroscopic synovectomy in wrist from July 1991 to September 1992 in Kyung Hee University Hospital. The age of the patients ranged from 23 to 55 years old. Follow up period was from 12 months to 26 months. The application for the arthroscopic synovectomy in that group of patients were based on such disabling clinical symptoms as severe pain, swelling, limitation of range of motion and roentgenographic type from mild to severe stage. Postoperative diagnosis was histologically confirmed with rheumatoid arthritis in nine wrists (nine patients) and gout in two wrists (one patient). The results were assessed subjectively and objectively with pain, swelling and range of motion. Satisfactory overall results were obtained and there were no complications. Conclusively, arthroscopic synovectomy in the wrist is effective produce to relieve pain of the rheumatoid arthritis and gout but arthroscopic synovectomy of wrist is technically demanded.
Subject(s)
Humans , Arthritis, Rheumatoid , Arthroscopy , Diagnosis , Follow-Up Studies , Gout , Range of Motion, Articular , WristABSTRACT
No abstract available.
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No abstract available.
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No abstract available.
ABSTRACT
The absence of palmaris longus musle is common, about 10% in general population, but absence of another muscle(S) in forearm and/or hand is very rare. We experienced a case of conenital absence of flexor digitorum profundus in both hands. It was confirmed by surgical exploration. This anomaly seems to be extremely rare case in the English literature.
Subject(s)
Forearm , Hand , TendonsABSTRACT
No abstract available in English.
ABSTRACT
Arthroscopy of the knee joint is an essential diagnostic procedure of the knee joint lesions because of its high diagnostic accuracy and simple procedure and high safety. We analysed in 300 cases of knee joints arthroscopy which performed in Kyung Hee University Hospital from July 1978 to June 1982. The results were as follows: 1. The diagnostic accuracy of clinical diagnosis of knee joint lesions based on arthroscopic findings was 51.0%. 2. The diagnostic accuracy of clinical diagnosis in surgically confirmed cases of knee joint lesions was 56.1% and diagnostic accuracy of arthroscopy was 90.9%. 3. In meniscal lesions, the diagnostic accuracy of arthroscopic diagnosis was 94.5%, arthrographic diagnostic accuracy was 84.9%, clinical diagnostic accuracy was 48.9% and combined accuracy of three diagnostic methods was 97.3%. 4. In cases which diagnosed as I.D.K. (Internal Derangement of Knee) in initial stage of knee joint lesions, meniscal lesions (32.8%) and ligament injuries (22.4%) were predominant lessions based on arthroscopic findings. 5. The frequency of meniscal tear were no significant difference in lateral (33.3%) or medial (36.0%) meniscus except discoid meniscus rupture. 6. 68 Cases of 300 arthroscopies (22.7%) were avoided unncessary arthrotomy through preoperative arthroscopic examination of knee joint. 7. Arthroscopy is very useful and essential not only to confirm the diagnosis but also to treatment of knee joint lesions.
Subject(s)
Arthroscopy , Diagnosis , Knee Joint , Knee , Ligaments , Rupture , TearsABSTRACT
Bone scan measuring bone metastasis were analysed in fifty five patients diagnosed as malignant tumor, seven were primary bone tumor and forty eight were metastatic tumor, who treated in Kyung Hee Hospital from March 1981 to January 1982. The results were as follows: l. In 55 patients, positive bone scan were found in 76.4% of the patients and positive X-ray were found in 56.4%. 2. 7 patients with primary bone tumor showed all positive bone scan, 45 patients with metastatic tumor showed positive bone in 72.9%. 3. Among the patients with metastatic tumor who no clinical symptoms, positive bone scan were found in 59.3% and positive X-ray in 26%. 4. Most common metastatic site was femur in primary bone tumor and vertebra in metastatic tumor. 5. In 48 patients of metastatic tumor, positive bone scan within negative X-ray were found in 56%, negative bone scan within positve X-ray were found in 5%. 6 The lesions showed clod area on bone scan were considered of positive finding as compared with clinical symptom and X-ray finding.
Subject(s)
Humans , Diagnosis , Femur , Neoplasm Metastasis , SpineABSTRACT
The utility of computerized tomogaphy in the study of the anatomy, and pathology of the musculoskeletal system has been the subject of considerable interest since the introduction of CT scanning. It provides an accurate and detailed cross-sectional image of normal anatomical structures and shows the relation of masses to these structures. In order to assess the utility of computed tomography, we analyzed the 92 clinical cases. We divided our experience into three major categories: spinal lesios, pelvic (including hip) lesions, and lesions of extremities. The advent of a new prototype scanning device has made it possible to exam a variety of abonormalities in the orthopedic diseases in a manner not previously possible.
Subject(s)
Extremities , Musculoskeletal System , Orthopedics , Pathology , Tomography, X-Ray ComputedABSTRACT
It has been emphasized that treatment of hemoral neck fracture is early anatomical reduction and rigid internal fixation to reduce severe complications such as avascular necrosis or non-union.Operative treatment were developed recently with development of radiological technique. This study reviewed twenty-nine patients of femoral neck fracture treated by internal fixation between December 1973 and December 1979. There are eleven casesof Garden's stage I or II fracture with multiple Knowles pinning and eighteen cases (All Gardens stage) treated with compression hip screw, and followed for a minimum of nine months with an average eighteen months. The results were as follows; 1. Eleven cases with minimal displaced fracture (Garden's stage I or II) treated by multiple Knowles pinning were revealed good results. 2. In total eighteen cases treated by compression hip screw, nine cases (Garden's stage I or II) were revealed good results and other nine cases (Garden's stage I or II) were revealed fair or poor results. 3. Eleven cases of mlutiple Knowles pinning and nine case of compressian hip screw used for undisplaced fracture (Garden's stage I or II) were revealed good results without regard to internal fixation devices. 4. Avascular necrosis were four cases in nine cases(44%) of displaced fracture. 5. Non-union were not found in this aeries.
Subject(s)
Humans , Agriculture , Femoral Neck Fractures , Femur Neck , Hip , Internal Fixators , Neck , NecrosisABSTRACT
We assessed the accuracy of clinical evaluation, arthrography, and arthroscopy in the diagnosis of meniscal lesions in twenty-nine knees in which arthrotomy and menisectomy were performed after evaluation by these three methods, At surgery, thirty menisci of twenty-nine knees were removed, of which twenty-eight were abnormal and two were normal. In these thirty menisci, a correct diagnosis was made clinically eighteen times, arthrographically twenty times, and arthroscopically twenty-seven times. Posterior horn tears of medial meniscus and discoid lateral meniscus were well visualized but lateral meniscal tears were poorly visualized on arthrogram. The errors of arthroscopy occurred in two tears confined to outer one half of medial menscal posterior horn, and in a normal meniscus as false positive. Based on this study, it was concluded that both the arthrography and arthroscopy are valuable techniques for the diagnosis of meniscal lesions, and that we can expect correct diagnosis of all the meniscal lesions by the use of complementary roles of the two and by the experiences.
Subject(s)
Animals , Arthrography , Arthroscopy , Diagnosis , Horns , Knee , Menisci, Tibial , TearsABSTRACT
It is generally accepted that fractures should be treated by closed methods, however for certain femoral fractures in adults, closed methods yields an unacceptable high incidence of nounlon, malunion, delayed unlon, and disability. For these fractures various methods of open reduction and internal fixation have been recommended, but unfortunately, there are frequent reports of complications and failures. The recently developed association for study of Internal fixation (ASIF) compression plating apparatus, seems to satisfy the basic objectives of internal flxatlons: namely
Subject(s)
Adult , Humans , Femoral Fractures , Femur , Follow-Up Studies , Incidence , Joints , WalkingABSTRACT
The principle in the treatment of an elderly patient with an intertrochanteric fracture has swung from traction to internal fixation due to complication such as pneumonia, skin ulcer, and throm-boembolic disease, etc. Since the introduction of the Smith-Peterson nail, numerous internal fixation devices such as I-beam nail, Thornton plate, Jewett nail and Holt nail have been developed by gadgeteers and instrument companies. Recently Compression Hip Screw is popular because of rigid internal fixation. The operative management of intertrochanteric fractures of the hip using Compression Hip Screwplate was performed in thirty-three patients who were followed more than 5 months after operation at Department of Orthopedic Surgery, Kyung Hee University Hospital, from Feb. 1974 to 1978. The results were as follows. 1. Of 33 cases of intertrochanteric fractures, 3 cases were stable fracture and 30 cases were unstable fracture. The commonest type was Tronzo type III with 42 percentage. 2. Dimon-Hughston reduction in 13 cases with unstable fracture and anatomical reduction in 20 cases with stable and unstable fracture were achieved. 3. The average time to fracture union was 12 weeks, minimum in 8 weeks (maximum 20 weeks). The average union time in age group over 50 years was 14 weeks and 11 weeks in age group under 50 years. 4. The average union time was 13 weeks in medial displased group and 10 weeks in anatomical reduction group. 5. Complication after internal fixation were 4 cases e.g., two cases of varus deformity, one case of genitourinary tract infection and one transient peroneal nerve palsy. 6. Compression Hip Screw is a good internal fixation device to treat intertrochanteric fracture.