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Biomedical subjects

J C Hodge

Publications and source records attributed to J C Hodge.

At least 19 recordsLinked to original sources
PubMed2000

Cementoplasty and the oncologic population.

The first and only description of percutaneous cementoplasty, to date, has been described in the French medical literature in 1994. In this series of 12 cases, radiologists successfully instilled a cement derivative into the acetabulum under fluoroscopic control. As in these cases, the major indication for cementoplasty is to provide pain control and stabilization of an osteolytic lesion. Potential complications include physical or thermal damage to the adjacent neurovascular structures, either during needle positioning or from cement leakage, respectively. Although no absolute contraindications exist, one should proceed cautiously in patients with coagulopathies. Results may be suboptimal as well in patients with pathologic fractures.

Aged↗
PubMed1999

Percutaneous biopsy of the musculoskeletal system: a review of 77 cases.

OBJECTIVE: To analyze the accuracy of percutaneous bone and soft-tissue biopsies. METHODS: A total of 77 percutaneous biopsies performed under computed tomographic or fluoroscopic guidance over a 24-month period were reviewed. The biopsies were performed in 74 patients, 32 male and 42 female, with a mean age of 60.3 years. RESULTS: Sixty-three bone and 14 soft-tissue biopsies were performed. No follow-up information was available for 8 patients, and 1 patient died before an accurate diagnosis could be made. There were 44 true-positive, 17 true-negative, 8 false-negative and no false-positive results. The correct diagnosis was obtained in 57 of 68 cases (83.8%). For bone biopsies, the accurate diagnosis was obtained in 47 of 55 cases (85.5%). For soft-tissue biopsies, the correct diagnosis was obtained in 10 of the 13 cases (76.9%). Diagnostic accuracy was slightly better for osteolytic than for osteosclerotic lesions. Accuracy also varied with lesion site and needle type. Cytology and pathology specimens were almost equally useful in contributing to the correct diagnosis. CONCLUSION: The accuracy of percutaneous biopsy achieved in this series is similar to that found in other series. Although diagnostic accuracy varied, accuracy is improved if both cytologic and pathologic specimens are analyzed.

Adolescent↗
PubMed1999

The incidence of sacroiliac joint disease in patients with low-back pain.

PURPOSE: The clinical presentation of intervertebral disc, facet joint, nerve root, and sacroiliac (SI) joint diseases are often indistinguishable. SI joint arthritis likely accounts for a significant proportion of what is called "low-back pain" or "sciatica." Our goal was to determine the incidence of SI joint arthritis in patients with this presentation. METHODS: Computed tomographic (CT) scans of the lumbosacral spine (LSS) of patients referred with low-back pain, sciatica, spinal stenosis or disc pathology were gathered over a 3-month period. Scans were retrospectively reviewed by 2 independent readers for SI joint arthritis. When there was disagreement, the 2 readers reviewed the case and reached a concensus opinion. SI joint arthritis was considered to be present if subchondral sclerosis, osteophytosis, or cartilage loss was noted on the CT scan. RESULTS: The SI joint(s) were visualized by both readers on 64 LSS CT scans performed in 29 women and 35 men, mean age 52 years. By the aforementioned criteria, 16 SI joints (25%) were considered normal by both readers. In 48 cases (75%), there was evidence of osteoarthritis. The diagnosis of osteoarthritis was made by concensus opinion in 8 of these 48 cases (16%). CONCLUSION: There is a relatively high incidence of SI joint arthritis in patients undergoing evaluation for "low-back pain" or "sciatica." Hence, SI joint arthritis should be considered a possible diagnosis in these patients.

Arthritis↗
PubMed1999

Clinics in diagnostic imaging (40). Iliotibial band syndrome.

A 51-year-old male cyclist presented with a mass over the lateral portion of his knee. MR scans showed a cystic collection deep to the iliotibial band (ITB). Diagnosis of the ITB syndrome and its differentiation from other cause of painful lateral knee masses, such as meniscal cyst, lateral collateral ligament injury and Segond fracture, are discussed.

Athletic Injuries↗
PubMed1999

Clinics in diagnostic imaging (42). Shepherd's fracture.

A 21-year-old woman presented with severe ankle pain during a soccer match. Radiographs showed a Shepherd's fracture of the talus. She responded well to conservative treatment. The imaging anatomy of the posterior talus and os trigonum is reviewed, together with radiological features of osteochondritis dissecans of the talar dome.

Adult↗
PubMed1998

Diagnosis of the acute os peroneum fracture.

Acute fracture of the os peroneum is a relatively uncommon injury. However physicians must be cognizant of its occurrence and include it in their differential diagnosis of acute ankle trauma. A careful clinical evaluation as well as awareness of its radiographic appearance and of the possibility for injury to other surrounding structures is important in the appropriate diagnosis and management of this fracture. We present the case of a patient who sustained an os peroneum fracture and review the relevant literature.

Accidental Falls↗
PubMed1997

Osteochondral allografts with an intramedullary muscle flap in rabbits.

A model for hemijoint reconstruction using partially demineralized and lyophilized osteochondral allografts combined with an intramedullary muscle flap is described. The proximal 2/3 of the humerus was resected in 10 rabbits. The remaining defect was reconstructed with either a control lyophilized osteochondral allograft or a lyophilized allograft with a muscle flap filling the marrow cavity. Graft healing was followed by serial radiographs and magnetic resonance imaging. The grafts were harvested at 5 weeks for histologic analysis. By 5 weeks, 4 of 5 control allografts had fractured. In contrast, only 1 allograft with an intramedullary muscle flap showed evidence of a cortical break. Magnetic resonance imaging of control allografts showed a persistent large dead space within the marrow cavity and callus formation only at the outer cortical surface. Magnetic resonance imaging of allografts with an intramedullary muscle flap showed muscle obliterating the marrow cavity and areas of callus formation at both the outer and inner cortical surfaces. Histologically, graft incorporation was occurring at the outer cortical surface of the control allografts. In contrast, graft incorporation was occurring at both the outer and inner cortical surfaces of the allografts with an intramedullary muscle flap. The articular surface of the control allografts was severely degenerated. In allografts with an intramedullary muscle flap, the articular surface was smoother. Joints reconstructed with allografts with an intramedullary muscle flap had a significantly better range of motion at 5 weeks compared with control allografts. These results suggest that an intramedullary muscle flap can improve the functional results of joints reconstructed with partially demineralized and lyophilized osteochondral allografts by providing both vascularity and an increased population of mesenchymal stem cells capable of responding to bone morphogenetic proteins that reside in the partially demineralized allograft.

Animals↗
PubMed1997

Clinics in diagnostic imaging (21). Intraosseous lipoma of the calcaneum.

A 50-year-old woman presented with plantar foot pain. Radiographs and computed tomography demonstrated an intraosseous lipoma of the calcaneum. Curettage and packing were performed. The imaging features, including the magnetic resonance appearances, of intraosseous lipomas are described.

Bone Neoplasms↗
PubMed1996

Prevalence of red marrow around the knee joint in adults as demonstrated on magnetic resonance imaging.

RATIONALE AND OBJECTIVES: We determined the prevalence of red marrow around the knee joint in adults and evaluated variations with age, gender, and other variables. METHODS: One hundred ninety-nine adult patients presenting for routine knee magnetic resonance (MR) imaging completed a questionnaire that covered age, gender, menstrual history, past pregnancies, smoking history, and medications. The presence or absence of visible red marrow in the distal femur and proximal tibia on both coronal and sagittal MR images was recorded for each patient. Associations between the presence of red marrow and the other recorded variables then were evaluated. RESULTS: Red marrow was present in more than half of the women and less than one sixth of the men, a statistically significant difference. The age distribution of red marrow in men and women also was different. Red marrow was the most common in women aged 30-60 years. In men, there was no clear-cut age trend. Red marrow also was more likely to be present in obese individuals and smokers. No association was found between the presence of red marrow and any of the other recorded variables. CONCLUSION: There are clear gender, age, obesity, and smoking-related differences in the prevalence of red marrow around the knee joint in adults. Red marrow is relatively common in this site in all age groups, and its presence should not be a cause for clinical concern.

Adolescent↗