Introduction and Objective. The patients with a total hip arthroplasty is growing in world manly in Europe and USA, and this solution present a high success at 10years in several
Introduction. Shoulder arthoplasty has increased in the last years and its main goal is to relieve pain and restore function. Shoulder prosthesis enters in the market without any type of pre-clinical tests. Within this paper we present study experimental and computational tests as pre-clinical testing to evaluate total shoulder arthoplasty performance. Materials and methods. An in vitro experimental simulator was designed to characterize experimentally the intact and implanted shoulder glenoid articulation. Fourth generation Sawbones® composite left humerus and scapula were used and the cartilage was replicated with silicone for the intact articulation (figure 1). In the intact experimental articulation we considered the inferior glenohumeral ligament as an elastic band with equivalent mechanical properties. For the implanted shoulder, the Comprehensive® Total Shoulder System (Biomet®) with a modular Hybrid® glenoid base and Regenerex® central post was considered (figure 2). The prostheses were implanted by an experienced surgeon and clinical results from
Aims. Orthopaedic surgery requires grafts with sufficient mechanical strength. For this purpose, decellularized tissue is an available option that lacks the complications of autologous tissue. However, it is not widely used in orthopaedic surgeries. This study investigated clinical trials of the use of decellularized tissue grafts in orthopaedic surgery. Methods. Using the ClinicalTrials.gov (CTG) and the International Clinical Trials Registry Platform (ICTRP) databases, we comprehensively surveyed clinical trials of decellularized tissue use in
One of the problems of keeping an
Total shoulder arthroplasty is a well-tested procedure that offers pain relief and restores the joint function. However, failure rate is still high, and glenoid loosening is pointed as the main reason in
In Scandinavia registers of locomotor system disease and trauma were developed in the mid 1970’s. In Sweden since then there exists registers of hip and knee arthroplasties and some years later similar registers were developed in Norway, Finland and Denmark. In 1988 a register on the treatment and rehabilitation of hip fractures started in Sweden and also since 1993 a spine register has been in use. The arthroplasty registers contain parameters concerning age, sex, diagnosis and technical factors for the operation. The outcome parameter is survival of the prosthesis e.g. if it has been revised or not. The real need to perform a revision arthroplasty has been considered a sufficiently well defined parameter to register. The hip fracture registration contains also background parameters as well as rehabilitation outcome including functional outcome parameters above all walking capacity and place of living. Functional outcome and patient rated quality of life are also included in the spine register. The arthroplasty registers have been very useful to separate better from not so well performing models as well as showing the importance of good cementing technique, type of cement as well as the influence of age, sex and diagnosis in a more rapid and reliable way because of the large-scale magnitude of the study. The hip fracture register has shown the importance of optimised operation and rehabilitation, which saves considerable resources in this increasing group of elderly patients. The symposium will exemplify performance, spread and results of
Three or more years after completion of treatment, we re-examined 16 patients with orthopaedic problems associated with neurofibromatosis I (NF-I) who were treated at our institution between 1976 and 1999. Seven boys and five girls between the ages of 5 and 15 years presented with congenital pseudarthrosis of the tibia (CPT). All had undergone previous surgery elsewhere. The patients had typical skin lesions and the associated radiological appearances of pseudarthrosis of the tibia. There were two cystic types of CPT, five hourglass and five normotrophic types, mostly at the level of the distal third of the tibia. Primary consolidation of the CPT was not obtained in any patient. Three patients underwent below-knee amputation after multiple surgical procedures. Eight had consolidations of the pseudarthrosis after multiple operations, but all had residual deformities and/or shortening. One patient remained with a non-consolidation. The surgical procedures included intramedullary rodding with or without bone grafting, fibular bypass grafting, Soffield turn-about rodding, electrical stimulation, and, in patients seen since 1989, various Ilizarov techniques including lengthening and bone transport. Our results suggest that the best treatment of this perplexing paediatric orthopaedic problem remains undetermined. Considerations for the selection of treatment include the pathologic anatomic pattern of NF-I and the patient’s age and expectations. A National
Our aim was to ascertain the opinion of Orthopaedic Consultants, General Practitioners, and Patients on the proposed primary care based follow up of joint replacements. An email questionnaire was sent