Use Of Methylmethacrylate Research Articles

The use of methylmethacrylate in the fixation of mandibular fractures in dogs

The use of methylmethacrylate in the fixation of mandibular fractures in dogs

Methylmethacrylate as an adjunct in spinal instrumentation

Sixteen patients with scoliosis were treated with Harrington-rod instrumentation supplemented by methylmethacrylate fixation at the distraction sites to reduce the possibility of dislodgement of a hook due to inferior bone stock or the patients' inability to cooperate postoperatively because of mental insufficiency or involuntary-movement disorders. Follow-up ranged from six to thirty-eight months (average, fourteen and one-half months). There were no complications related to the use of methylmethacrylate in these patients.

The Use of Methylmethacrylate as an Adjunct in the Internal Fixation of the Fracture in Elderly Patients and malignant Neoplastic Fracture

The Use of Methylmethacrylate as an Adjunct in the Internal Fixation of the Fracture in Elderly Patients and malignant Neoplastic Fracture

Changing concepts in the management of pathological and impending pathological fractures.

The benefits in the management of pathological fractures by internal fixation are well recognized. However, failures in bone or metal can occur where there is a large amount of bone destruction. Seven of 69 pathological fractures in our series were treated by internal fixation with adjunctive use of methylmethacrylate without failure. This allowed for secure fixation in fractures with large amounts of bone destruction, thus decreasing the patient's pain and allowing earlier mobilization. Neither the effects of radiotherapy on bone involved with neoplasm nor methylmethacrylate are altered when radiotherapy is used after internal fixation and adjunctive use of methylmethacrylate. We believe that an aggressive program of stabilization of these fractures or fixation before actual fracture provides significant patient benefits including reduction of pain, decreased length of hospital stay, reduction of financial expense, and return to as near normal function as possible.

The use of methylmethacrylate in the fixation of mandibular fractures in dogs: Experimental results

The efficacy of self-curing acrylic resin in the fixation of fractured mandibles was studied in eight adult mongrel dogs. Roentgenograms taken after operation and after the animals had been put to death demonstrated satisfactory fracture reduction and bony healing. There was no evidence of abnormal healing or nonunion along the fracture line and no evidence of necrotic bone. No mobility could be detected across the fracture site at any time after the insertion of the acrylic resin. Although satisfactory bony healing resulted from the intraoral open reduction and fixation with self-curing acrylic resin in dogs, several factors need additional investigation before this technique can be considered for use in human beings.

The use of methylmethacrylate as an adjunct in the internal fixation of unstable comminuted intertrochanteric fractures in osteoporotic patients

Forty-two unstable, four-part intertrochanteric fractures in forty-one patients (seventy-one to 104 years old) with severe osteoporosis were treated by open reduction and internal fixation (Jewett nail or compression screw-plate) supplemented with methylmethacrylate packed into the curetted medullary space. One patient was lost to follow-up, one died of a myocardial infarction at six weeks, and one was excluded because of an unsuspected myeloma found at the fracture site. All patients were sitting up in a chair the day after operation. Full weight-bearing on the limb was started within three weeks by thirty patients and at an average of 118 days by six who had very comminuted fractures. Three patients, non-ambulatory preoperatively, did not walk after operation. Of the thirty-eight fractures followed for from nine to thirty-seven months, thirty-seven healed with no loss of position. One fracture which had been fixed with the nail and cement not extending far enough into the head and neck displaced, and the operation had to be repeated, this time with a successful result. The fractures healed by periosteal new-bone formation. There was no evidence of avascular necrosis or wound complications.

The relative safety of polymethylmethacrylate. A controlled clinical study of randomly selected patients treated with Charnley and ring total hip replacements

Forty patients from a group of seventy elected to participate in a prospective randomized clinical study designed to evaluate the systemic effects of polymethylmethacrylate implanted with a Charnley total hip replacement, utilizing patients treated with a Ring total hip prosthesis ad controls. Intraoperative alterations in cardiovascular function were related to use of methylmethacrylate, but postoperative changes in pulmonary function, erythrocyte sedimentation rate, serum lactic acid dehydrogenase, serum glutamicoxalacetic transaminase, and alkaline phosphatase were not. Charnley total hip replacements were associated with more ectopic-bone formation twelve months postoperatively. The two "latent" infections recognized during the thirty-four months of the study were in hips without acrylic fixation.

Methyl Methacrylate Restrictions

To the Editor.— I believe that a protest must be made regarding the position and actions taken by the Food and Drug Administration (FDA) in relationship to the use of methyl methacrylate. I think there is justification for the FDA to evaluate new and experimental drugs and to control these drugs in relationship to the toxicity and possible harm that may be done to the body by their use, and thus control the use of toxic elements on the population before adequate study has been completed. But, for the life of me, I cannot understand the logic of the position taken by these federal agencies in the use of this drug, restricting its use according to their present attitudes. Under what logic can this ruling be explained, that methyl methacrylate does not harm the human body when it is used about the hip joint and about the knee joint, but

The use of methylmethacrylate in repair of neoplastic lesions in bone.

HomeRadiologyVol. 112, No. 1 PreviousNext Diagnostic RadiologyThe Use of Methylmethacrylate in Repair of Neoplastic Lesions in BoneDavid H. Carlson, Ronald AdamsDavid H. Carlson, Ronald AdamsAuthor Affiliations Department of Radiology Newton-Wellesley HospitalNewton Lower Falls, Mass. 02162David H. CarlsonRonald AdamsPublished Online:Jul 1 1974https://doi.org/10.1148/112.1.43MoreSectionsPDF ToolsImage ViewerAdd to favoritesCiteTrack CitationsPermissionsReprints ShareShare onFacebookTwitterLinked In AbstractThree cases of neoplastic pathological fractures of long bones were made suitable for internal fixation devices by filling with methylmethacrylate. A single case of a neoplastic vertebral lesion which was repaired with this bone cement is also discussed. Both the diagnostic and therapeutic radiologist should be familiar with this useful procedure.Article HistoryAccepted: Feb 1974Published in print: July 1974 FiguresReferencesRelatedDetailsCited ByOrthopedics, Vol. 23, No. 10European Journal of Surgical Oncology (EJSO), Vol. 23, No. 3Orthopedics, Vol. 16, No. 10Archives of Orthopaedic and Traumatic Surgery, Vol. 100, No. 1Cervical Spine Stabilization with MethylmethacrylateVeterinary Surgery, Vol. 8, No. 1Recommended Articles RSNA Education Exhibits RSNA Case Collection Vol. 112, No. 1 Metrics Altmetric Score PDF download

2,012 Total Hip Arthroplasties

The postoperative course and early complications after total hip arthroplasty were evaluated by reviewing the records of 1,684 patients who underwent 2,012 arthroplasties. Arthroplasty-related complications (after 6 per cent of the operations) included dislocation, spontaneous subluxation, loosening of acetabular or femoral components, sciatic and femoral-nerve palsy, and superficial and deep wound infections. Medical complications (in 25 per cent of the patients) included urinary-tract infections, acute renal failre, myocardial infarction, cardiac failure, pneumonitis and atelectasis, thrombophlebitis, hemorrhage, and gastrointestinal disturbances. The intrahospital mortality was 0.4 per cent (nine patients). Based on these findings, it was concluded that certain technical considerations are important, including correct use of methylmethacrylate, positioning of prosthetic components, trochanteric wiring, and the configuration of the tissues and cement adjacent to the joint.

The Adjunctive Use of Methylmethacrylate in Fixation of Pathological Fractures

Methylmethacrylate was used adjunctively in the internal fixation of thirty-five pathological fractures and in sixteen patients in whom fractures were imminent. Effective fixation and stability were achieved after all procedures. Without the use of methylmethacrylate, twenty procedures associated with extensive destruction would not have achieved satisfactory fixation. Because stability of the osseous structure can be restored by the methylmethacrylate, extensive bone destruction is not a contraindication in the selection of patients. Relief of pain and functional improvement were rated as follows: good in thirty-eight cases, fair in six, and poor in seven. There were no failures of the fixation and no significant complications from the methylmethacrylate.

The Use of Methylmethacrylate as an Adjunct in the Internal Fixation of Malignant Neoplastic Fractures

1. The advantages of managing malignant pathological fractures in long bones by operative internal fixation is recognized. When conventional fixation is used, failures have resulted because of extensive cortical bone lysis about the fracture site with consequent instability. 2. Thirty-one actual and two incipient malignant pathological fractures in thirty patients were managed by internal fixation augmented by replacement of locally resected tumor and pathological bone by methylmethacrylate. 3. This method achieves immediate solid fracture immobilization with consequent alleviation of pain, early active joint motion, and early weight-bearing with minimum, if any, support. 4. True fracture healing probably does not occur. However, in only one patient did failure of fixation result.

Methyl methacrylate cranioplasty. 13 years experience with 417 patients.

The use of methyl methacrylate for cranioplastic repair in 417 patients over a 13 year period has been presented. Its advantages have been noted as well as the indications and the operative technique. Infection has occurred in less than one percent, and half of these cases (2) were due to surgical errors.

A note on the use of methylmethacrylate for sealing the bony portion of a cranionasal fistula.

A note on the use of methylmethacrylate for sealing the bony portion of a cranionasal fistula.

Accurate duplication of the trial denture

T 0 paraphrase a former President, it is altogether “fitting and proper” that a dentist who has taken great pains to make satisfactory trial dentures should be greatly concerned that the occlusal relations which he has painstakingly achieved will be reproduced in the processed denture. According to the writer’s experience and also to a recent article in this JOURNAL, his chances of achieving this result are very slim. In almost all cases, there will be some vertical dimensional change in the relationship,of the teeth to the cast. If the space between the teeth and the palatal surface of the denture is increased, this change will be referred to in this article as vertical dimensional increase. If the space is decreased, the term used to describe the change will be vertical dimensional loss. Of these two, the more common is an increase in vertical dimension. It is by no means impossible by present procedure, or by procedure other than that to be described here, to avoid vertical dimensional change. The most commonly practiced method of processing a denture is the use of methyl methacrylate, monomer, and polymer in a compression molding technique. To date, this technique yields the optimum properties of methyl methacrylate. The author believes that by very careful and repeated trial packing the increased vertical dimension that usually results can be greatly reduced, if not eliminated. However, the time and care that such repeated trial packing would necessitate are beyond what may be expected, even of competent technicians. It is the author’s purpose to discuss briefly the causes of the shift of the teeth from their original positions and to disclose a remedy. Contrary to his usual experience, the writer does not find the difficulties to arise from remote or unexpected causes. Instead his obs&at&ns indicate that incomplete and often uneven closure of the Bask are important factors in displacement of the teeth during processing. Often the flask is completely closed, but with such force that cast distortion and investment dikbrtion occur. It also appears that sometimes repeated opening of the flask and repeated packing may loosen the teeth from the investment. If these factors are, indeed, the main causes of the increase in vertical dimension that ‘takes place during processing, the steps that would eliminate or reduce the following items, incomplete or inaccurate closure, excess pressure on the ca$, and trial packing, should have like effect on the errors attributed to these causes. The contrary may be accepted with very little reservation. Other causes only lightly dealt with here are the almost primitive and inadequate flasks and presses now in use.

RHINOPLASTY: The Use of Methyl Methacrylate Implants

THE VARIOUS materials used in the reconstruction of depression defects of the nose are almost as numerous as the decades since rhinoplasties were first mentioned in writings, about the seventh century B.C. 1 Surgical implants have varied from paraffin to bone, and none has been found to be entirely satisfactory. In 1942 one of the authors (R. S. L.) while at the Mayo Clinic 2 noted the successful use of methyl methacrylate, an acrylic resin, in the reconstruction of a hip joint. This resin, commonly known as lucite, was then considered in the ear, nose and throat department of the United States Marine Hospital, Baltimore, for use as nasal implants. This type of surgical implantation was first done at this clinic in January 1943, and since then 20 patients have received surgical implants. Because it was feared that the tissue might react to methyl methacrylate as to a foreign body, the material