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Biomedical subjects

R L FitzRandolph

Publications and source records attributed to R L FitzRandolph.

10 recordsLinked to original sources
PubMed1997

Modified technique for fluid aspiration from the hip in patients with prosthetic hips.

A modified technique was used for diagnostic aspiration of fluid from the hip in 185 patients who had previously undergone total hip arthroplasty. The aspiration needle was advanced past the lateral aspect of the shaft of the prosthesis and into the dependent portion of the joint. Fluid was successfully aspirated in 181 of 185 patients; thus the dry-tap rate was 2.2% (four of 185 patients). The modified technique was simple, could be performed quickly, and was effective for sampling joint fluid in patients with hip prostheses.

Biopsy, Needle↗
PubMed1992

Case report 731. Complicated Baker's cyst.

The atypical appearance of a gas-containing, noninfected, popliteal synovial cyst has been presented. The case again demonstrates the value of plain radiographs, in this instance in distinguishing gas bubbles and calcification, which may not be apparent by MRI and ultrasound. The uniqueness of this case is stressed. The cause of the gas bubbles was not ascertained.

Adult↗
PubMed1991

Arthrography of painful hips following arthroplasty: digital versus plain film subtraction.

Digital and manual subtraction images obtained during the arthrographic evaluation of 78 painful hip prostheses were reviewed retrospectively. Revision arthroplasty was performed in 53 of these cases, and the arthrographic and surgical findings were correlated. The digital and manual subtraction images were evaluated without knowledge of the surgical results using established criteria for component loosening. Digital subtraction arthrography of the femoral component demonstrated a 96% sensitivity and 100% specificity for the diagnosis of component loosening. Sensitivity and specificity for acetabular component loosening were 83% and 80%, respectively. Plain film subtraction of the femoral component demonstrated a 79% sensitivity and 100% specificity; the sensitivity and specificity for the acetabular component were 75% and 80%, respectively. The difference between detection of femoral component loosening on digital as opposed to manual subtraction images was statistically significant (P less than 0.05). This study demonstrate that digital subtraction improves the evaluation of femoral component loosening in painful hip prostheses.

Arthrography↗
PubMed1991

Case report 667. Fibrolipomatous hamartoma of the median nerve.

Fibrolipomatous hamartoma of a nerve represents an uncommon soft-tissue tumor which typically involves the median nerve distribution near the wrist. Macrodactyly may or may not be present. The application of MRI using routine T1- and T2-weighted spin echo imaging sequences reveals serpiginous structures with low signal intensity. These structures probably represent the neural elements and associated perineural fibrosis. Further experience may allow for an accurate preoperative diagnosis of this tumor.

Child, Preschool↗
PubMed1991

Cervical spine instability in rheumatoid patients having total hip or knee arthroplasty.

The records and roentgenographs of 113 rheumatoid patients treated by total hip or knee arthroplasty were analyzed retrospectively. The cervical spine roentgenographs were evaluated for significant atlantoaxial subluxation, atlantoaxial impaction, and subaxial subluxation. One or more of these findings were present in 69 (61%) of the patients. Thirty-five of the 69 (50%) with roentgenographically documented cervical spine instability had no signs or symptoms of instability at the time of admission for joint replacement. This high incidence of cervical spine instability in a select population of rheumatoid patients emphasizes the importance of preoperative evaluation of the cervical spine including flexion and extension lateral roentgenographs.

Adolescent↗
PubMedDate not supplied

The limping child.

Explore the source record for details and available documents.

Arthritis↗
PubMedDate not supplied

Radiographic and orthopedic evaluation of wrist trauma.

This paper was written to enable radiologists to contribute more usefully to the diagnosis and treatment of various wrist injuries. All imaging modalities are discussed to equip the radiologist for his difficult task. We present a systematic approach to the evaluation of wrist trauma patients beginning with initial plain films and proceeding through more invasive or sophisticated studies in order to achieve a definitive diagnosis. Toward this end a flow chart has been developed as a quick reference source. The authors have then described the anatomy and kinematics of the wrist to further the radiologist's understanding of the forces involved and the injuries produced by trauma. From this foundation individual injuries are then discussed together with the best methods of making the proper diagnosis of each. Criteria for adequate treatment of various injuries are also presented.

Fractures, Bone↗
PubMedDate not supplied

MR and CT appearance of iliopsoas bursal distention secondary to diseased hips.

Occasionally hip joint disease may extend into surrounding structures, including the retroperitoneum, via the iliopsoas bursa. The enlargement of this bursa may present as an inguinal or pelvic mass that may affect other surrounding structures and can result in a multitude of clinical presentations. The two cases presented herein of iliopsoas bursa distention secondary to hip disease demonstrate the excellent specificity of CT and magnetic resonance in differentiating this clinical entity from other causes of groin masses.

Aged↗