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Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 167 - 167
1 Mar 2009
Ahluwalia R Mueller M Kempraju N Fonseca J
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We present the use of the Orthopaedic POSSUM Score and Surgical Risk Score (SRS) to identify optimal time for fracture neck of femur surgery. The objective of this study was to identify the physiological status of patients at admission and compare the results of operative physiological condition and differences in predictive and actual operative outcomes.

1238 consecutive hip fractures from Jan 2005 to July 2006 at 3 hospitals were assessed. Collection of demographic, admission and operative POSSUM, and SRS scores, fracture pathology, physiological status, and postoperative outcome were conducted.

In total, 1031 (83.3%) patients had surgery. The median age was 72.6 (range 55–95, mean 68). Majority had significant systemic multiple co-morbidity (78%), an average ASA score of 3.3. POSSUM predicted 18.7% (n= 194) of death at 30 days, where as the surgical risk score predicted 13.8% (n=142 deaths), the actual mortality was 11.7% (n=120).

The difference between admission and operative physiological POSSUM score increased with operative delay (see table 1). Physiological scores greater than 30 had a 67.8% risk of 30-day mortality. 361 patients had an increase in physiological score from admission to operation, resulting in higher analgesic requirements and reduced mobility scores (P< 0.005). These patients had a 12.6% increase in mortality when compared with patients operated earlier with a similar initial score (P< 0.005). Furthermore delayed surgery (> 48 hours) lead to reduced in return mobility, function, increased wound infections and other medical complications.

Possum and SRS over predict operative mortality, but are useful in prioritising their time of surgery. Declining operative physiological POSSUM scores indicate room for improvement in preoperative care, and for specific protocols if surgery has to be delayed to prevent further physiological deterioration, and induce optimal functional outcomes.


Orthopaedic Proceedings
Vol. 88-B, Issue SUPP_II | Pages 309 - 309
1 May 2006
Narayanasetty K Mueller M Fonseca J Ahluwalia R
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Introduction: We present the use of Orthopaedic POSSUM Score and Surgical Risk Score (SRS) in femoral neck fracture surgery. The objective of this study was to identify the physiological status at admission and at operation and identify differences in predictive and actual patient operative outcomes.

Material and Methods: All 338 consecutive, hip fractures from December to July 2005 at three hospitals were assessed prospectively. Collection of demographic, admission, and operative POSSUM, and SRS scores, fracture pathology, physiological status, and outcomes were analyzed.

Results: In total, 306 (90.5%) patients had surgery. The median age was 73 years (range 55–95). The majority had co-morbidities (77.5%; n=237), as suggested by average ASA scores of 3.2. POSSUM predicted mortality was 13.6% (n=25) at 30 days, whereas the SRS predicted 11.4% (n=21), but mortality was 7.1% (n=13) if operated before 48 hours. Differences between admission and operative physiological Possum score increased with operative delay. Physiological scores over 30 had a 67.8% risk of 30-day mortality. Eighty-six patients had an increase in physiological score from admission to operation, resulting in higher analgesic requirements and reduced mobility scores (P< 0.005).

Discussion: Possum and SRS had a tendency to predict prior than actual operative mortality. Nevertheless, comparison of admission and operative physiological POSSUM scores indicate room for improvement in pre-operative care if surgery is delayed.