Biomedical subjects

J M Bert

Publications and source records attributed to J M Bert.

7 recordsLinked to original sources

PubMed1992

Use of an electrocautery loop probe for arthroscopic meniscectomy: a five-year experience with results, indications, and complications.

Between 1984 and 1990, 952 patients had arthroscopic meniscectomies with a specially designed electrocautery loop probe. In all but 250 patients, 1.5% glycine was used as the nonconductive irrigating solution. Ninety-five patients had repeat arthroscopic procedures at a minimum of 6 months after their original procedure. Biopsies of the meniscal remnants were obtained in 21 patients. In all 21, there was no evidence of thermal damage in the area of the previous arthroscopic meniscal electrosurgery. In less than 4% of the patients, articular surface injuries occurred at the time of the original meniscectomy. Careful records were kept outlining the areas of contact damage with the exposed wire of the electrocautery loop probe. At repeat arthroscopies in 17 patients 9 months to 4 years after the initial procedure, there was no apparent evidence of significant permanent damage to the articular surface in the area of the original thermal injury. The electrocautery loop probe was effective for efficient resection of simple and complex tears of the medial or lateral meniscus.

Adolescent↗

PubMed1991

Electrocautery.

Explore the source record for details and available documents.

Arthroscopy↗

PubMed1991

Universal intramedullary instrumentation for unicompartmental total knee arthroplasty.

Certainly the advantages of unicompartmental total knee arthroplasty (TKA) are appealing as opposed to tricompartmental arthroplasty. Patients who have had unicompartmental arthroplasty have significant preservation of existing bone stock. They have an improved range of motion and they are definitely easier to revise. This reduces hospitalization time as well as costs with retention of more normal anatomy. In patients with unicompartmental disease with minimal patellofemoral changes, clinical results are certainly encouraging in terms of patient satisfaction with unicompartmental arthroplasty as opposed to tricompartmental arthroplasty. Restoration of function is unquestionably closer to normal than with tricompartmental arthroplasty. The advantages of an intramedullary instrumentation system for unicompartmental disease allows for a more standard method of placing unicompartmental prosthetic components so that less "eyeballing" occurs. Furthermore, utilization of a system that allows for more precise anatomical cuts should allow for better component fit as well as a return to a more normal femoral-tibial angle.

Aged↗

PubMed1991

The effect of cold therapy on morbidity subsequent to arthroscopic lateral retinacular release.

Of all arthroscopic procedures, lateral retinacular release carries the greatest potential for morbidity. Complication rates of up to 7.2% have been reported, secondary to intraoperative and postoperative hematoma formation. A prospective double-blind study was conducted in which patients were randomly assigned to one of two groups treated with or without cold therapy for 24 hours postoperatively, subsequent to arthroscopic lateral retinacular release utilizing electrosurgery. Seventy-four percent of the patients treated with cold therapy had good to excellent results postoperatively, and none had significant complications. Thirty-two percent of the patients treated without cold therapy had good to excellent results postoperatively, and two patients experienced significant complications in this group.

Adolescent↗

PubMed1990

Effect of various irrigating fluids on the ultrastructure of articular cartilage.

The effect of five different irrigating fluids on the ultrastructure of articular cartilage was studied utilizing the scanning electron microscope. Gross histologic studies have shown no significant difference amongst commonly used irrigating fluids on the surface or matrix composition of articular cartilage. Recent in vivo and in vitro biochemical studies, in addition, have shown no significant deleterious effects of irrigating fluids on articular cartilage composition. This study was prospectively undertaken to assess the effect of irrigating fluids on the ultrastructure of articular cartilage. When comparing five irrigating solutions utilizing the scanning electron microscope, specimens irrigated with 1.5% glycine seemed to show a more consistently smooth appearance. Ultrastructural changes were noted with the other four irrigating solutions tested.

Adult↗

PubMed1990

Dislocation/subluxation of meniscal bearing elements after New Jersey low-contact stress total knee arthroplasty.

From October 1985 to April 1986, 43 consecutive New Jersey low-contact stress total knee arthroplasties (TKAs) were performed for degenerative arthritis of the knee. At the one-year follow-up examination, 91% of the patients had good to excellent results based on the Hospital for Special Surgery scoring system. Four patients, however, sustained dislocation/subluxation of the meniscal bearing elements. Three of these occurred within 13 days postoperatively, and one patient sustained a dislocation at six months postoperatively. These four patients were treated with revision TKA. Despite following the precise technique in performance of this procedure, a 9.3% incidence of dislocation/subluxation of the meniscal bearing elements occurred.

Aged↗

PubMed1989

The arthroscopic treatment of unicompartmental gonarthrosis: a five-year follow-up study of abrasion arthroplasty plus arthroscopic debridement and arthroscopic debridement alone.

A retrospective review with a mean follow-up time of 60 months was performed on 126 patients who had treatment of unicompartmental gonarthrosis with either abrasion arthroplasty plus arthroscopic debridement or arthroscopic debridement alone. Fifty-nine patients had abrasion arthroplasty and arthroscopic debridement, and 67 patients had arthroscopic debridement alone. All patient had stage II Ahlbäck changes roentgenographically, as well as Outerbridge stage IV changes arthroscopically in the involved compartment. All the knees were evaluated postoperatively at a minimum of 60 months, utilizing The Hospital For Special Surgery Knee Scoring System. In the group treated with abrasion arthroplasty, 51% had good to excellent results, 16% had fair results, and 33% had poor results. The conditions of ten of the patients who had poor results actually became worse subsequent to their abrasion arthroplasty. In the group that had arthroscopic debridement, 66% had good to excellent results, 13% had fair results, and 21% had poor results. The conditions of 12 of the patients who had poor results actually became worse subsequent to the arthroscopic debridement.

Aged↗