PubMed Health⌕ Search

Biomedical subjects

L Lidgren

Publications and source records attributed to L Lidgren.

At least 91 records · Page 5Linked to original sources
PubMed1987

Incidence of hip replacement in southern Sweden.

During the years 1981-1982, 1,729 hip replacements were performed in the population of 943,000 persons in the nine southernmost orthopedic districts of Sweden. This is equivalent to 7,600 hip replacements per annum in the 8.3 million Swedish population. Based on the highest annual district incidence, the national equivalent increases to 12,500. Arthrosis accounted for 57 per cent of the arthroplasties, hip fracture for 23 per cent, and failed total hip replacement for 10 per cent.

Arthritis↗
PubMed1987

Treatment of the exposed knee prosthesis.

Ten knees with early tissue breakdown after knee arthroplasty resulting in exposed prostheses were treated with different plastic surgical techniques. Six knees were successfully covered: four using a gastrocnemius musculocutaneous flap, one using a fasciocutaneous flap, and one using split-skin grafts. Four knees failed: two using local skin flaps and two using split-skin grafts. A gastrocnemius musculocutaneous flap seems to provide a reliable coverage of the exposed knee joint.

Aged↗
PubMed1987

Revision knee arthroplasty in rheumatoid arthritis.

Seventy-six revised total knee arthroplasties (TKAs) performed for mechanical, nonseptic failure of the primary arthroplasty in 62 rheumatoid arthritis patients were investigated. The revisions were performed with McIntosh, Marmor, Attenborough, Guepar, and various types of tricompartmental prostheses. Twenty-one of the 76 revisions subsequently failed. Fifteen were mechanical failures and six were deep infections. Thirteen of the 21 failures were treated with another arthroplasty, six with arthrodesis, and two with antibiotics only. After an average of 60 months, 48 of the surviving arthroplasties were examined clinically and roentgenographically. At follow-up examination, eight were clinical failures. One-half of the McIntosh and Marmor arthroplasties and one-third of the Attenborough and Guepar arthroplasties, altogether 17 cases, showed signs of potential roentgenographic failure. The majority of the revised TKAs classified as roentgenographic failures were clinically successful or acceptable. Revision of TKAs in noninfected rheumatoid patients can be performed with acceptable clinical results but with a significantly higher failure rate than after primary procedures.

Arthritis, Rheumatoid↗
PubMed1986

Synovectomy of the knee in juvenile chronic arthritis. A retrospective, consecutive follow-up study.

We report 60 synovectomies of the knee in 51 children with juvenile chronic arthritis. Synovitis had been present for an average of 5 years and the average age at operation was 13 years. Results were evaluated in terms of pain, knee movement, relapse of synovitis and radiological change during a follow-up averaging 7.5 years. The relief of pain was rewarding and there was a slight postoperative gain in range of knee movement in most cases. The older the patient at onset of disease, the greater the risk of pain during follow-up. Progressive joint destruction was more common in younger patients, those with systemic or polyarticular disease, and those with highly active disease at the time of operation. Recurrence of synovitis was more frequent in patients who had their operation in a phase of high disease activity; this occurred most often in patients with polyarticular disease.

Adolescent↗
PubMed1986

Survival of knee arthroplasties. A nation-wide multicentre investigation of 8000 cases.

A prospective nation-wide study of knee arthroplasty has been under way in Sweden since October 1975. By the end of 1983, 4505 arthroplasties for osteoarthritis and 3495 for rheumatoid arthritis had been recorded and reviewed one, three and six years after the operation. Using actuarial methods, the probability of the prosthesis remaining in situ after six years was calculated. In osteoarthritis this probability ranged from 65% for hinged prostheses to 90% for medial compartment prostheses. Two-and three-compartment prostheses produced intermediate results with 87% survival. In rheumatoid arthritis the probability varied from 72% for medial compartment prostheses to 90% for two- and three-compartment prostheses. The main reason for failure was loosening of the components, the second most common was infection. The probability of revision for infection by six years was 2% in osteoarthritis and 3% in rheumatoid arthritis. Most revisions were to a three-compartment prosthesis. Knee fusion at primary revision was required in 2% of the cases at six years.

Arthritis, Rheumatoid↗
PubMed1986

Revision of total hip replacement with solid cortico-spongious bone graft for medial acetabular disruption.

In revision of failed total hip replacements with disruption of the medial acetabular wall the use of autogenous solid cortico-spongious bone graft proved to be a successful surgical procedure. In 7/8 revisions followed for 2-3 years, the bone grafts healed, as seen radiographically on plain film or by conventional tomography and no further acetabular protrusion occurred. Two of these seven hips had a radiolucent zone of 2-5 mm at the bone-cement interface at the inferior part of the cup. In the eighth hip the bone graft was resorbed/eroded and the cup had migrated 4 mm in the mediocranial direction.

Acetabulum↗
PubMed1986

Sonography, arthroscopy, and intracapsular pressure in juvenile chronic arthritis of the hip.

Sonography was used in the preoperative evaluation of the hip joint in 14 patients with juvenile chronic arthritis (JCA). The joint capsule distension found at sonography and the intracapsular pressure were increased in patients with severe synovitis revealed at arthroscopy. Sonography and intracapsular pressure-recording can be recommended for assessments of synovitis of the hip joint in JCA.

Adolescent↗
PubMed1986

Revision of infected knee arthroplasty.

Sixteen infected knee arthroplasties were revised and followed for 5 (1-10) years. There were nine recurrences of infections, but in one of these a second revision was successfully carried out. The remaining seven revisions resulted in only four functioning prostheses. The results were poor for hinged and stabilized prostheses for which arthrodesis, after eradication of the infection, is recommended. Infected compartmental prostheses with good bone stock could be treated with a two-stage procedure using tricompartmental revision prostheses.

Aged↗
PubMed1986

Cup arthroplasty of the rheumatoid shoulder.

Hemiarthroplasty of the humeral head, using a stainless steel cup, was performed in 26 shoulders of patients with rheumatoid arthritis who had severe pain and loss of function. All the shoulders were Larsen's radiographic Grade 4 or 5. After 2 (1-5) years, all the shoulders were painless and had satisfactory function. Partial radiolucent zones exceeding 1 mm were seen in three shoulders.

Adult↗
PubMed1986

Loosening of the porous coating of bicompartmental prostheses in patients with rheumatoid arthritis.

Thirty-four porous-coated anatomical (PCA) total knee arthroplasties in twenty-eight patients with rheumatoid arthritis were followed for an average of seventeen months. In these thirty-four knees, twenty-three tibial and fifteen femoral components were cemented. The rest were uncemented. At follow-up, more than half of the knees (nineteen of thirty-four) showed radiographic evidence of displacement of some of the beads from the porous coating. In fourteen knees the beads loosened more than three months postoperatively, and all of these knees had a radiolucent zone. Six knees had beads within the joint. Eight of nine non-cemented tibial components (excluding one tibial component) and five of the nineteen femoral components that were not cemented showed late loosening of beads (after three months). This study indicates that the metallurgical technique for porous coating with heat-sintered cobalt-chromium beads does not produce a coating that is sufficiently strong to prevent loosening in the case of the porous-coated anatomical prosthesis. The long-term clinical relevance of our findings is unclear. The mechanical strength of the porous coating on the prosthetic surface should be improved and the prosthesis should be tested in limited clinical studies before cementless fixation can be recommended.

Adult↗
PubMed1985

Arthrodesis for failed knee arthroplasty. A report of 20 cases.

Twenty consecutive patients treated by arthrodesis for failed knee arthroplasty are reviewed. Eight hinged, five stabilised and seven compartmental prostheses were removed, for infection (15 cases), loosening (4) and instability (1). One patient refused a second-stage operation but the remainder gained sound fusion. Infected knees had a two-stage procedure with temporary insertion of gentamicin-loaded beads after removal of the prosthesis; all infections healed. Six arthrodeses using a Hoffmann-Vidal external fixator resulted in two temporary failures. One Ace-Fischer external fixation was successful. Of 10 primary attempts at arthrodesis with an intramedullary Küntscher nail, nine were successful; the tenth fused after two more attempts by the same method. The two failures of external fixation and two failures after Charnley single-frame compression done elsewhere were successfully fused with intramedullary nails. Delayed union in three cases fused after prolonged fixation and repeated bone grafts. The indications for and methods of arthrodesis after failed knee arthroplasty are discussed.

Aged↗
PubMed1985

Total knee replacement in juvenile chronic arthritis.

Twelve patients with juvenile chronic arthritis (JCA) underwent 18 primary knee replacements during 1975-81. Eleven patients were followed for an average of six (3-9) years. Mean age at operation was 25 (18-32) years. Indications for surgery were pain and limitation of motion. Four knee joints were revised, one of them three times, due to malposition and/or mechanical loosening of the prosthetic components. At follow-up, all patients except one were satisfied with the knee replacement. All patients except one were ambulatory. Functional capacity was improved in 8 patients. The arc of motion was increased by a mean of 17 degrees. The radiographs at follow-up showed an average hip-knee-ankle (HKA) angle of 182 (173-193) degrees. In eight knee joints the tibial and/or femoral component showed a radiolucent zone at the bone-cement interface exceeding 2 mm and in four of these joints there were signs of prosthetic migration. To aid in the choice of an appropriate prosthesis for the juvenile arthritic joint, standardized measurements of the radiographic dimensions of the knee joint were made. Because of the high rate of revisions during the short observation period and the potential failure rate indicated by the radiographs at follow-up, we maintain a cautious attitude towards knee replacement in patients with JCA.

Adolescent↗
PubMed1985

A case of blackthorn synovitis.

A seven-year-old boy fell against a blackthorn bush and found that thorns had penetrated the skin over the left knee. Aseptic synovitis developed with repeated febrile episodes. With the suspicion of septic arthritis, the patient was treated with antibiotics on repeated occasions, two negative joint aspirations and a knee joint exploration were performed. Three months after the injury the correct diagnosis was made at a second arthrotomy when an intra-articular thorn was removed and synovectomy carried out, after which healing was uneventful.

Child↗
PubMed1985

Fracture of the knee endoprosthesis. Report of three cases of tibial component failure.

Three cases of total knee replacement, in which the polyethylene tibial component was fractured, are presented. Two were Attenborough prostheses and the third was a Townley prosthesis. In all cases there were radiographic signs of loosening before the fracture occurred. They were all successfully reoperated with an arthrodesis, using the long Küntscher nail technique.

Aged↗
PubMed1985

Survival of knee arthroplasties for rheumatoid arthritis.

During a 15-year period, 498 primary knee arthroplasties for chronic rheumatoid and related arthritides were performed. Ninety arthroplasties where prosthetic components were added, removed or replaced were recorded as failures. Eighty-one revisions were exchange arthroplasties, eight attempted arthrodeses and one an above-the-knee amputation. Survival rates were calculated with a life table technique. The cumulative 5-year survival rate was 76 per cent for tibial hemiprostheses, 78 per cent for unicompartment prostheses, 100 per cent for tricompartment prostheses, 87 per cent for stabilized prostheses and 84 per cent for hinge prostheses. Continuous deterioration was observed in the tibial hemiprostheses. The improved surgical technique, with guide instruments and release procedures for better alignment and stability, and to some extent the improved prosthetic design may explain the good early results with tricompartment prostheses.

Adolescent↗
PubMed1984

Total hip replacement after nailing failure in femoral neck fractures.

Forty patients were treated by means of total hip arthroplasty after nailing of femoral neck fractures had failed. Their average age was 73 years. Thirty-eight patients were still alive after 2 years and were reviewed. Two hips dislocated, but there was no early mortality. The results regarding pain, walking capacity, and function were good, and total hip replacement is considered to be the salvage operation of choice.

Adult↗
PubMed1984

Posttraumatic bacterial arthritis with luxation of the elbow. A case report.

Trauma predisposes an individual to bacterial arthritis. This report describes a case of posttraumatic bacterial arthritis with luxation of the elbow. It was necessary to perform synovectomy as a complement to systemic antibiotic treatment in order to control infection and reduce the dislocation. The use of external fixation is demonstrated.

Anti-Bacterial Agents↗