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Biomedical subjects

I Esformes

Publications and source records attributed to I Esformes.

6 recordsLinked to original sources
PubMed1991

Arthroscopic treatment of degenerative joint disease of the knee.

The role of arthroscopy in the management of degenerative conditions of the knee continues to evolve. This study was undertaken to: (1) assess the efficacy of arthroscopic treatment, (2) identify significant prognostic factors, and (3) further define the indications for treatment. A retrospective review of charts and operative videotapes along with follow-up evaluation was obtained for 43 knees in 40 patients. Average age was 54 years. Average follow up was 24 months; 72.1% of patients had good results at follow up, 16.3% had fair results, and 11.6% were treatment failures. Preoperative clinical status, severity of degenerative changes, and number of pathologic entities encountered at the time of surgery correlated with the results of treatment. We believe that arthroscopic debridement is an effective means of treatment for mild to moderate degenerative joint disease after failure of conservative measures. By using this treatment option, more extensive surgical procedures may be delayed or avoided.

Arthritis, Rheumatoid↗
PubMed1984

The role of arthroscopy in the management of low-velocity gunshot wounds of the knee joint.

Eight patients with low-velocity civilian gunshot wounds of the knee were examined and evaluated by arthroscopy. Three of these patients were also treated by surgical arthroscopy and underwent limited arthrotomy for bullet removal. In two patients small arthrotomy incisions were made following arthroscopic exploration for removal of bullets. Two patients underwent diagnostic arthroscopy. One underwent internal fixation for a chondral fracture of the femoral condyle. The majority of patients sustained intra-articular damage and retained foreign materials (denim flecks and metallic shards) and osteochondral fragments. There were no postoperative infections after a minimum follow-up period of one year. Arthroscopy is highly effective in the diagnosis and surgical management of low-velocity gunshot wounds of the knee both alone and in combination with limited arthrotomy depending on the severity of the condylar damage. The length of the hospital stay is reduced (length of stay exceeded 3-4 days only as a result of intravenous antibiotic coverage). Physical therapy requirements are minimal. Active mobility and a full range of motion are regained more rapidly with arthroscopy than with surgical exposure of multiple exploratory incisions or conventional standard arthrotomy.

Adult↗
PubMed1981

A magnetically augmented elbow prosthesis: design and biomechanical evaluation.

Magnetically augmented joint prostheses are a relatively new concept. A prototype of an elbow prosthesis with a magnetically constrained axis was designed by the authors and subjected to various tests. It demonstrated greater stability than nonhinged devices. The magnetic bearing reduces the tensile and rotatory forces on the prosthetic fixation that occur with a constrained hinge device, thus preventing loosening and breakage.

Biomechanical Phenomena↗
PubMed1981

Biological effects of magnetic fields generated with CoSm magnets.

Experiments were conducted to determine whether any observable short-term biological effects were caused by a static magnetic field created with CoSm magnets similar to those used in the elbow prosthesis described on pages 69-80. Tissue culture studies of several cell lines showed no obvious effects on cell growth rate, morphology, or the ability to grow and remain confluent; and no deleterious effects of the magnetic field were evident as a result of an in-vivo study of wound and bone healing in rats. Long-term effects, if any, have yet to be determined.

Animals↗
PubMedDate not supplied

Anterior shoulder instability in weight lifters.

Occult instability is recognized as a major cause of shoulder dysfunction in throwing athletes. Few studies have characterized the findings of occult instability in nonthrowers. The purpose of this study was to examine shoulder instability in a group of weight lifters. The symptoms, physical findings, and results of treatment for 23 shoulders in 20 athletes are presented. All athletes presented with a complaint of progressive inability to perform exercises with the upper extremity in the abducted, externally rotated position (the "at-risk" position) because of pain. One hundred percent of the athletes experienced posterior shoulder pain when the shoulder was placed in forced abduction and external rotation. Thirteen shoulders in 10 patients responded to conservative management including aggressive rehabilitation and modification of technique to avoid the at-risk position. The other 10 shoulders, which did not respond to conservative treatment, required surgical treatment to alleviate the symptoms. All 20 patients have successfully returned to their previous weight lifting activities.

Adolescent↗