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PubMed1998

Comminuted fractures of the radial head. Arthroplasty versus internal fixation.

Fractures of the radial head continue to challenge orthopaedic surgeons. Fortunately, most simple uncomplicated fractures treated non-operatively with emphasis on early motion achieve good results. Treatment of more complex fractures remains controversial, however. When simple radial head excision is contraindicated, choosing between open reduction and internal fixation and radial head replacement remains difficult. A review of the literature does not provide definite guidelines, but suggest that fracture complexity and technique are critical for success. This paper is not intended to review the treatment of radial head fractures, but rather to focus on choosing between replacement versus internal fixation when preservation of radial head mechanics is indicated.

Arthroplasty↗
PubMed2006

A biomechanic comparison of an internal radiocarpal-spanning 2.4-mm locking plate and external fixation in a model of distal radius fractures.

PURPOSE: To compare the biomechanic stability of distal radius fracture fixation with a new internal radiocarpal-spanning 2.4-mm locking plate, which acts as an internal distal radius fixator, versus a standard distal radius external fixator. The number of locking screws necessary for adequate fracture fixation was also assessed. METHODS: Ten cadaveric specimens were mounted in a loading fixture with cables attached to the 2 flexor and 3 extensor wrist tendons. A 1-cm osteotomy was created to simulate an unstable distal radius fracture. The radiocarpal-spanning locking plate was fixed to the radius and index metacarpal with 4 screws proximally and 4 distally. The specimen was incrementally loaded through the tendons. Motion at the fracture site was determined. Screws were sequentially removed from the construct, the specimen was again incrementally loaded, and fracture motion was measured. The fixation was then changed to an external fixator, and the loading tests were repeated. RESULTS: Fracture fixation with the radiocarpal-spanning 2.4-mm locking plate was significantly more stable with 4 screws proximally and 4 screws distally (4 x 4) and with the 3 x 3 configuration than with the external fixator in both flexion and extension. The 4 x 4 screw configuration was not significantly different from the 3 x 3 screw configuration. The 4 x 4 screw configuration was significantly more stable than the 2 x 2 and 1 x 1 screw configurations in both flexion and extension. All internal fixator configurations and the external fixator showed more fracture displacement at increasingly higher loads. CONCLUSIONS: Fracture fixation with the new internal radiocarpal-spanning 2.4-mm locking plate is more stable than with a standard distal radius external fixator. Only three 2.4-mm locking screws proximally and three 2.4-mm locking screws distally are required for adequate fixation of the locking spanning plate.

Aged↗
PubMed1987

Interfragmentary screw fixation of fractures of the tibial shaft.

The records of 54 patients treated with interfragmentary screws were reviewed a mean of 2 years after surgery. Fifty-one fractures were of moderate severity (Ellis, 1950), 31 had a ratio of fracture length to tibial diameter of 2 or more and 17 were comminuted. An anatomical reduction, achieved initially in 44 fractures, was lost before union occurred in 14 (32 per cent), despite plaster splintage. Excellent results, with anatomical healing, were achieved in 30 patients (55 per cent) and good results with less than 5 degrees malalignment in 6 (11 per cent). There was a statistically highly significant association of satisfactory results with initial anatomical operative reduction of the fracture, a ratio of fracture length to tibial diameter of 2 or more and the absence of comminution. The orientation and number of screws, delayed operation, the degree of initial displacement of the fracture and the patient's age were not shown to affect the outcome. Delayed union occurred in 4 patients (7.4 per cent) and non-union in 3 (5.5 per cent). Deep infection occurred twice (3.7 per cent). As more satisfactory results could be expected for these fractures using other techniques, we conclude that this method cannot be recommended.

Adolescent↗
PubMed1981

Intramedullary fixation for fractures of the hand.

Twenty-seven fractures in 22 patients were treated with an intramedullary rod, introduced through the fracture fragments, without violating the joint surfaces. Twenty-six fractures united. There was one nonunion and one migration of the pin into the joint; there were no infections. Advantages of this procedure are (1) that it is quicker and easier to perform than a procedure requiring Kirschner wires or plates, (2) no special equipment is needed, and (3) motion can often be started as early as 10 days after the operation.

Adolescent↗
PubMed2005

Delayed surgical fixation of fractured hips in older people: impact on mortality.

AIM: The aim of this project was to ascertain whether increasing delays from admission to surgical repair of hip fractures showed a direct relationship to mortality within the first postoperative year. BACKGROUND: It has been recommended that surgical repair of hip fractures should be performed within 24 hours of admission in an effort to reduce postoperative mortality. A literature review of articles relevant to this directive revealed that previous research is conflicting in its findings, and fails to provide conclusive evidence on which to base this recommendation. METHODS: Using a retrospective correlational design, Cox Multivariate Regression was used to analyse data from a sample of 381 patients admitted with hip fractures between September 2000 and March 2002. Exclusions from the total accessible population were made in an effort to control bias because of other factors that could contribute to mortality, resulting in 381 patients (64% of total population) being included in the study. All patients in the sample had an American Society of Anaesthesiologists score of 2 or less, were fit for immediate surgery, had an intracapsular or trochanteric fracture, had not had contralateral hip fracture in the previous 2 years, and had presented exclusively with a hip fracture. RESULTS: There was no relationship between delayed surgery and postoperative mortality (P>0.05) when all other independent variables were controlled. Cognitive dysfunction and reduced prefracture mobility were both good prognostic indicators of increased mortality within the first operative year. CONCLUSION: It is important that patients are adequately prepared and resuscitated before surgery is carried out. The nursing contribution to this is paramount. The findings also identify useful information for preparing patient's relatives in relation to prognosis.

Aged↗