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      A new algorithm for hip fracture surgery : Reoperation rate reduced from 18% to 12% in 2,000 consecutive patients followed for 1 year

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          Abstract

          Background and purpose

          Treatment of hip fracture patients is controversial. We implemented a new operative and supervision algorithm (the Hvidovre algorithm) for surgical treatment of all hip fractures, primarily based on own previously published results.

          Methods

          2,000 consecutive patients over 50 years of age who were admitted and operated on because of a hip fracture were prospectively included. 1,000 of these patients were included after implementation of the algorithm. Demographic parameters, hospital treatment, and reoperations within the first postoperative year were assessed from patient records.

          Results

          931 of 1,000 operative procedures were performed according to the algorithm, as compared to only 726 of 1,000 prior to its introduction (p < 0.001). After implementation of the algorithm, junior registrars still performed half of the operations, but unsupervised procedures declined from 192 of 1,000 to 105 of 1,000 (p < 0.001). The rate of reoperations declined from 18% to 12% (p < 0.001 in a multiple Cox regression analysis), with a decline of 24% to 18% for intracapsular fractures and a decline of 13% to 7% for extracapsular fractures. The proportion of bed-days caused by reoperations was reduced from 24% of total hospitalization before the algorithm was introduced to 18% after it was introduced.

          Interpretation

          It is possible to implement an algorithm for treatment of all hip fracture patients in a large teaching hospital. In our case, the Hvidovre algorithm both raised the rate of supervision and reduced the rate of reoperations. The reduced reoperation rate saved many hospital bed-days.

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          Most cited references22

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          A new mobility score for predicting mortality after hip fracture.

          We assessed 882 patients presenting with a proximal femoral fracture by a new mobility score and by a mental test score, to determine which was of the most value in forecasting mortality at one year. Both scores gave a highly significant prediction, but the mobility score had a greater predictive value and is easier to perform.
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            Internal fixation compared with arthroplasty for displaced fractures of the femoral neck. A meta-analysis.

            The optimal choice for the stabilization of displaced femoral neck fractures remains controversial, with alternatives including arthroplasty and internal fixation. Our objective was to determine the effect of arthroplasty (hemiarthroplasty, bipolar arthroplasty, and total hip arthroplasty), compared with that of internal fixation, on rates of mortality, revision, pain, function, operating time, and wound infection in patients with a displaced femoral neck fracture. We searched computerized databases for randomized clinical trials published between 1969 and 2002, and we identified additional studies through hand searches of major orthopaedic journals, bibliographies of major orthopaedic textbooks, and personal files. Of 140 citations initially identified, fourteen met all eligibility criteria. Three investigators independently graded study quality and abstracted relevant data, including information on revision and mortality rates. Nine trials, which included a total of 1162 patients, provided detailed information on mortality rates over the first four postoperative months, which ranged from 0% to 20%. We found a trend toward an increase in the relative risk of death in the first four months after arthroplasty compared with the risk in the first four months after internal fixation (relative risk, 1.27). At one year, the relative risk of death was 1.04. The risk of death after arthroplasty appeared to be higher than that after fixation with a compression screw and side-plate but not higher than that after internal fixation with use of screws only (relative risk = 1.75 and 0.86, respectively; p < 0.05). Fourteen trials that included a total of 1901 patients provided data on revision surgery. The relative risk of revision surgery after arthroplasty compared with the risk after internal fixation was 0.23 (p = 0.0003). Pain relief and the attainment of overall good function were similar in patients treated with arthroplasty and those treated with internal fixation (relative risk, 1.12 for pain relief and 0.99 for function). Infection rates ranged from 0% to 18%, and arthroplasty significantly increased the risk of infection (relative risk, 1.81; p = 0.009). In addition, patients who underwent arthroplasty had greater blood loss and longer operative times than those who were treated with internal fixation. In comparison with internal fixation, arthroplasty for the treatment of a displaced femoral neck fracture significantly reduces the risk of revision surgery, at the cost of greater infection rates, blood loss, and operative time and possibly an increase in early mortality rates. Only larger trials will resolve the critical question of the impact on early mortality.
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              Integrity of the lateral femoral wall in intertrochanteric hip fractures: an important predictor of a reoperation.

              Reoperations after intertrochanteric fractures are often necessitated by fracture displacement following mobilization of the patient. The biomechanical complexity of the fracture, the position of the implant, and the patient's characteristics are known to influence postoperative outcome. We investigated the importance of an intact lateral femoral wall as a factor in postoperative fracture displacement after fixation with a sliding compression hip screw. Two hundred and fourteen consecutive patients with an intertrochanteric fracture were treated with a 135 degrees sliding compression hip screw with a four-hole side-plate between 2002 and 2004. The fractures were classified on preoperative radiographs according to the AO/OTA classification system. The status of the greater and lesser trochanters, the integrity of the lateral femoral wall, and the position of the implant were assessed postoperatively. Reoperations due to technical failure were recorded for six months postoperatively. Only 3% (five) of 168 patients with an intact lateral femoral wall postoperatively underwent a reoperation within six months, whereas 22% (ten) of forty-six patients with a fractured lateral femoral wall were operated on again (p < 0.001). Multivariate logistic regression analyses combining demographic and biomechanical parameters showed a compromised lateral femoral wall to be a significant predictor of a reoperation (p = 0.010). Seventy-four percent (thirty-four) of the forty-six fractures of the lateral femoral wall occurred during the operative procedure itself. A fracture of the lateral femoral wall occurred in only 3% (three) of the 103 patients with an AO/OTA type-31-A1.1, A1.2, A1.3, or A2.1 intertrochanteric fracture compared with 31% (thirty-one) of the ninety-nine with an AO/OTA type 31-A2.2 or A2.3 fracture (p < 0.001). A postoperative fracture of the lateral femoral wall was found to be the main predictor for a reoperation after an intertrochanteric fracture. Consequently, we concluded that patients with preoperative or intraoperative fracture of the lateral femoral wall are not treated adequately with a sliding compression hip-screw device, and intertrochanteric fractures should therefore be classified according to the integrity of the lateral femoral wall, especially in randomized trials comparing fracture implants.
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                Author and article information

                Journal
                Acta Orthop
                ORT
                Acta Orthopaedica
                Informa Healthcare
                1745-3674
                1745-3682
                February 2012
                8 February 2012
                : 83
                : 1
                : 26-30
                Affiliations
                1simpleDepartments of Orthopaedics
                2simpleAnaesthesiology, Hvidovre University Hospital
                3simpleSection of Surgical Pathophysiology, the Juliane Marie Centre , Rigshospitalet, Copenhagen, Denmark
                Author notes
                Article
                ORT_A_652887_O
                10.3109/17453674.2011.652887
                3278653
                22248165
                8b25ddd3-f27b-4cde-8d56-c148caaa0308
                Copyright: © Nordic Orthopaedic Federation

                This is an open-access article distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the source is credited.

                History
                : 08 April 2011
                : 16 October 2011
                Categories
                Article

                Orthopedics
                Orthopedics

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