PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Fracture Fixation, Intramedullary”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 343 records · Page 19Linked to original sources
PubMed1978

Surgical treatment of clavicular fractures with Kirschner wires: a comparative study.

In the period January 1968 to January 1976, 1400 patients were treated for clavicular fractures. In 74 (5 percent) of cases co-adaptation osteosynthesis was carried out and the results are reported. Conservative treatment of clavicular fractures is to preferred. Surgical treatment should be performed only on strict indication. Percutaneous intramedullary Kirschner wire fixation, performed in an atraumatic manner and with proper postoperative treatment, gives good results for simple fractures. A warning is given against over-emphasis on the radiological findings in the treatment of clavicular fractures.

Adult↗
PubMed2006

Effect of autocontrol micromotion intramedullary interlocking nail on fracture healing: an experimental study.

OBJECTIVE: To investigate the effect of autocontrol micromotion locking nail (AMLN) on experimental fracture healing and its mechanism. METHODS: 16 goats undergoing both sides of transverse osteotomy of the femoral shafts were fixed intramedullary with AMLN and Gross-Kempf (GK) nail, respectively. The follow-up time was 7, 14, 28 and 56 days. Roentgenographic, biomechanical, histological, scanning electromicroscopic and biochemical analyses were done. RESULTS: (1) The strength of anticompression, antiflexion and antitorsion in the fractural end in the AMLN-fixed group was higher than that of GK nail-fixed group; whereas, the rate of stress shelter in the fractured end decreased significantly (P<0.01). (2) The content of the total collagen, insoluble collagen, calcium and phosphate in the AMLN-fixed group was higher than that in the GK nail-fixed group (P<0.05). (3) Histological observation and quantitative analysis of calluses revealed that AMLN could promote the growth of bridge calluses and periosteum calluses. Hence the fracture healing and remolding process achieved early, which was much better than traditional GK nail fixation. (P<0.05). (4) 7-14 days postoperation, the calluses of AMLN-fixed group was flourish and camellarly arranged and the collagen fibril formed constantly in the absorption lacuna of bone trabecula. 28-56 days postoperation, the collagen fibril was flourish around the absorption lacuna and was parallel to the bone's longitudinal axis. Active bony absorption and formation were seen, so was remolding and rebuilding. Haversian system was intact and the bony structural net was very tenacious because of the deposition of calcium salt. None of the above findings was observed in the GK nail-fixed group. CONCLUSIONS: The design of AMLN accords well with the plastic fixation theory. As the geometry ametabolic system constituted by the intramedullary fixation instruments and the proximal and distal end of the fracture is very firm and stable, the disturbance to the physical stress distributed in the fractural end is light. The generation and conduct of the intermittent physical stress between the fractural parts could reach the balance between stress conduct and stress protection. The feature that the healing and remolding take place at the same time speeds up the fractural healing process.

Animals↗
PubMed2002

The principle of helical implants. Unusual ideas worth considering.

The clinical use of helical implants (implants extruded over helical paths either periosteal (plates / internal fixators) or intramedullary implants for bone fixation is presented. A helical nail permits more degrees of freedom when choosing an entry point. With a helical periosteal device it is possible to position an implant on different aspects of bone (for instance, laterally in the proximal part of the bone or anteriorly in the distal part of the bone). These options have proven particularly useful when attempting to avoid damage to the vascular system of the femoral head and when performing MIPO bridge plating of humeral shaft fractures. Helical implants open up a new and still unexplored field in bone fixation. Early results have been very encouraging. It is hoped that indications for its use will broaden once the international community of orthopaedic surgeons realizes its existence and its major innovative features.

Adult↗
PubMed2005

Periprosthetic fractures after total knee arthroplasty.

Fractures around total knee arthroplasties are challenging clinical problems and include the following: stress fractures of the pelvis and femoral neck, supracondylar femur fractures, fractures of the proximal tibial metaphysis and diaphysis, and patellar fractures. Treatment focuses on restoration of the patient's prefracture functional status. The etiology of supracondylar femur fractures is multifactorial and treatment includes immobilization, retrograde intramedullary nailing, open reduction and internal fixation, and revision arthroplasty. The "Less Invasive Stabilization System" plate has recently been added to the list of viable fixation options. Tibial metaphyseal and diaphyseal fractures are less common and usually treated with revision arthroplasty. In the absence of maltracking or component loosening, vertical patellar fractures often respond to immobilization. Disruption of the extensor mechanism may require cerclage wiring or even extensor mechanism allografting if chronic. Conventional tension band wiring usually fails. Patellar fractures are controversial and problematic.

Arthroplasty, Replacement, Knee↗
PubMed1984

Infra-isthmal fractures of the femur: a review of 82 cases.

Eighty-two infra-isthmal fractures of the femur were reviewed in order to develop a fracture classification, to determine the results of treatment, and to define the best treatment methods for certain specific fracture patterns. Type I (transverse or short oblique) fractures were seen in 36 patients (mean age, 33 years). They had a 25% complication rate when treated by open reduction, and a high malunion rate when treated by closed means. Type II (spiral or long oblique) fractures were generally caused by falls, and were seen in 36 patients (mean age, 56 years). Most patients treated by operation had an unsatisfactory result. Malunion was seen in 29% of the patients treated by closed means. The remaining ten patients had either severely comminuted (Type III), or pathological (Type IV) fractures. Intramedullary nail fixation should be used wherever possible in these fractures since many of the complications in the operative group were related to rigid plate fixation. Closed treatment resulted in an unacceptably high incidence of malunion in this study, particularly in Type I fractures. Conventional methods of internal fixation were not successful in dealing with Type II fracture, and alternative methods are proposed.

Adolescent↗
PubMed1990

Closed intramedullary pinning of metacarpal and phalanx fractures.

The surgical technique for closed intramedullary pinning of metacarpal and phalanx fractures is described. Commonly available 0.045 K-wires are used in a manner similar to Ender or Rush nailing of long bone fractures. This technique avoids impaling soft tissue structures--a drawback to more commonly used percutaneous K-wire techniques--and provides sufficient stability to allow early, protected motion.

Bone Nails↗