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Biomedical subjects

C K Yates

Publications and source records attributed to C K Yates.

9 recordsLinked to original sources
PubMed1995

Arthroscopic subacromial decompression: two- to seven-year follow-up.

Arthroscopic subacromial decompression (ASD) was performed in 88 patients (90 shoulders) with stage II or early III impingement syndrome of the shoulder unresponsive to nonoperative treatment. The purpose of this retrospective study was to evaluate the follow-up an average of 41 months (range 24 to 82 months) after surgery. We wished to compare results in (1) patients with and without rotator cuff tears, (2) in athletes and nonathletes, and (3) in throwers and nonthrowers. Patients were evaluated by (1) Neer's Criteria for Satisfactory Result, (2) the UCLA Shoulder RAting Scale, (3) the Shoulder and Elbow Surgeons Rating Scale, (4) a detailed questionnaire, and (5) patient satisfaction. In the follow-up group (n = 90), 80% met Neer's criteria for satisfactory result; 94% had satisfactory results by the UCLA Shoulder Scale; 95% had a satisfactory result by the Shoulder and Elbow Society Scale; and 93% of shoulder patients expressed satisfaction at follow-up. There were no statistically significant differences in function between the group without rotator cuff tear (n = 47) and the group with rotator cuff tear (n = 43). Satisfactory results were obtained in 68% of throwing athletes and in 90% of nonthrowing athletes (P < .05) by the Neer Rating, whereas only 50% of competitive baseball and softball pitchers had satisfactory results. Out impression is that ASD is an acceptable alternative to open anterior acromioplasty with comparable results for the treatment of the impingement lesion. There were no differences in result in patients who had a partial rotator cuff tear and those who had no tear.(ABSTRACT TRUNCATED AT 250 WORDS)

Acromion↗
PubMed1993

The effects of immediate continuous passive motion on pain during the inflammatory phase of soft tissue healing following anterior cruciate ligament reconstruction.

Continuous passive motion (CPM) may have potential application as a physical modality in decreasing acute pain. The purpose of this study was to examine the effects of CPM immediately following an arthroscopically-assisted anterior cruciate ligament (ACL) reconstruction utilizing bone-patella-bone autograft on acute pain during the inflammatory phase of soft tissue healing. Acute pain was measured by assessing the amount of pain medication (amount of narcotic delivered from the patient-controlled analgesia (PCA) pump during the first postoperative 24 hours and the total intake of oral medication during the second and third postoperative days), the need for pain medication (number of times the patient pushed the PCA button during the first postoperative 24 hours), and perceived pain (graphic pain scale measuring antalgic sensation). Thirty patients (15-45 years old) participated in this study. The patients were prospectively randomized into two groups, CPM and non-CPM. Both groups followed an identical postoperative rehabilitation program except for the CPM groups using a CPM device. The design of this study included the collection of data during the inflammatory phase of soft tissue healing. The results indicated that the initiation of CPM immediately following an ACL reconstruction had a significant (p < .05) effect on decreasing the amount of medication consumed by the patient and a significant (p < .05) decrease in the patient's need for medication during the inflammatory phase. There was no statistical significance in the level of perceived pain between the groups.(ABSTRACT TRUNCATED AT 250 WORDS)

Administration, Oral↗
PubMed1991

The effect of tourniquet use and hemovac drainage on postoperative hemarthrosis.

Postoperative hemarthrosis is the most common reported complication after arthroscopic knee surgery. The purpose of this study was to determine the effects of hemovac drainage and tourniquet use on the incidence of postoperative hemarthrosis. Sixty patients who had undergone arthroscopic knee surgery were divided into groups based on tourniquet use and whether a drain was used postoperatively. At follow-up, patients had range of motion recorded, and clinical assessment of their hemarthrosis (Grades 0 through 4). Patients who had a hemovac drain used postoperatively, and those patients who did not have a tourniquet used, had fewer hemarthroses and a greater range of motion at all periods of follow-up. We conclude that use of a drain can decrease the incidence of hemarthrosis and allow patients to regain an active range of motion sooner. Also, the routine use of a tourniquet should be avoided because of its correlation with hemarthrosis.

Adult↗
PubMed1990

Acute scrotal disorders: prospective comparison of color Doppler US and testicular scintigraphy.

Color Doppler ultrasonography (US) and testicular scintigraphy were used prospectively to evaluate 28 patients with acute scrotal pain. The results of these imaging studies were correlated with final diagnoses established by means of surgery or clinical follow-up. In all patients, testicular torsion was considered to be a possible diagnosis based on findings from the initial clinical evaluation. Findings from surgery confirmed testicular torsion in seven patients. All cases were correctly diagnosed with color Doppler US. Scintigraphy enabled correct diagnosis of six, but findings were false-negative in one patient with 180 degrees torsion. One patient had a surgically confirmed scrotal abscess that was correctly diagnosed with both color Doppler US and scintigraphy. Findings from clinical follow-up in the remaining 20 patients were consistent with epididymitis, orchitis, or torsion of an appendix testis. There were no false-positive diagnoses of testicular torsion by means of either color Doppler US or scintigraphy in any of these 20 patients. Color Doppler US is at least as accurate as testicular scintigraphy and can function as an effective means of evaluating patients with suspected testicular torsion.

Acute Disease↗
PubMed1990

Patellofemoral pain in children.

The primary inadequacy in the treatment of patellofemoral pain in children has been the inability to translate distinct problems recognized during physical examination into a specific clinical classification. Using a classification system based on etiology rather than symptoms allows the clinician to proceed with treatment based on a specific diagnosis. The majority of patellofemoral pain in children is caused by trauma and malalignment syndromes (or a combination of both) and can usually be managed successfully with nonoperative methods. Success in a rehabilitation program depends on a precise understanding of the original or underlying cause of the child's patellofemoral pain.

Bone Diseases, Developmental↗
PubMed1986

Focal fatty infiltration of the liver simulating metastatic disease.

Two cases are reported in which multiple, well-defined lesions of the liver, as seen on computed tomographic (CT) scans and sonograms, were thought to represent metastatic malignancy. Results from radionuclide scans and biopsies (and surgery in one case) indicated the correct diagnosis was fatty infiltration of the liver. Focal fatty infiltration should be considered in cases of multiple discrete hepatic lesions, especially in patients with a predisposing condition. Radionuclide studies and biopsies may be needed to confirm the diagnosis by CT.

Fatty Liver↗
PubMedDate not supplied

Magnetic resonance imaging evaluation of the patellar tendon after use of its central one-third for anterior cruciate ligament reconstruction.

Magnetic resonance imaging was used to evaluate the remaining patellar tendon after its central one-third had been harvested for anterior cruciate ligament reconstruction. Twenty patients were studied at either 6 weeks, 4, 6, 9, or 18 months postoperatively. The average thickness, width, cross-sectional area, and signal intensity of the operated and contralateral non-operated tendons were calculated and compared for each magnetic resonance imaging scan. A significant increase in the thickness was noted at all periods of followup, but no change in width occurred despite the defect being closed at the time of surgery. High signal intensity was present in the early periods, which signified edema and scar tissue. Signal intensity decreased at subsequent follow-up periods until at 18 months the operated tendon appeared normal. These findings indicate that the patellar tendon has the potential to regenerate and remodel in the postoperative period.

Adult↗
PubMedDate not supplied

Arthroscopic Bankart suture repair.

The purpose of this paper was to report our experience with an arthroscopic technique of repair for the Bankart lesion following shoulder instability. Twenty-seven patients (average age, 21.7 years) were followed for an average of 36 months after arthroscopic suture stabilization of anterior shoulder instability. Patients were excluded if instability was multidirectional or voluntary and if there was radiographic evidence of a significant loss of glenoid bone stock. Clinical evaluation using a functional grading system showed that 10 patients were rated as excellent, 5 good, and 12 poor. Fourteen patients returned to their previous level of activity. There were 12 patients rated as failed; all had recurrent instability of the shoulder. Success was associated with a period of immobilization of 3 weeks or longer and a history of acute injury, especially subluxation. Failures were associated with shorter immobilization periods after surgery and in patients who had recurrent dislocations. The younger patient, who may not have complied with the immobilization protocol, also seemed to be associated with failure. Contact sports seems to leave a patient at high risk for recurrence. We recommend caution in the use of arthroscopic procedures for the competitive athlete in whom a second surgery and rehabilitation might mean loss of more sports participation.

Adult↗