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Prognostic indicators of outcome for patients with skeletal metastases from carcinoma of the prostate

Shepherd, K. L.; Cool, P.; Cribb, G.

Authors

K. L. Shepherd

G. Cribb



Abstract

Aims
The purpose of this study was to identify prognostic indicators of outcome at presentation to the orthopaedic surgeon, in patients with metastatic prostate cancer. Our aim was to use this information in a pragmatic, clinic-based approach so that surgical decision making could be optimized to benefit the patient in their remaining lifetime.

Patients and Methods
A cohort analysis was undertaken of all patients with metastatic disease of the prostate who presented to a regional orthopaedic centre in the United Kingdom between 2003 and 2016. Biochemical data were collected in addition to disease and demographic data. These included: prostate-specific antigen (PSA) at orthopaedic presentation; haemoglobin (Hb); platelets (plt); alkaline phosphatase (ALP); albumin (Alb); and corrected calcium (CaC). Statistical analysis included Kaplan–Meier survival analysis, and a Cox proportional hazards model was fitted to the data.

Results
From the departmental database, 137 episodes were identified in 136 patients with a median age at presentation of 72 years (interquartile range (IQR) 66 to 78). Most patients had stage IV disease (n = 98, 72%), and most did not undergo surgical intervention. At one-year follow-up, 50% of patients had died. Biomarkers found to be independently associated with poor survival were: low Hb, low Alb, relatively low PSA (< 30 mmol/l), and a raised ALP. Patients who needed surgical intervention had a poorer survival rate than patients who were managed nonoperatively.

Conclusion
The study findings are important for orthopaedic clinical practice in the management of patients with metastatic prostate cancer. The interpretation of routine blood tests can help to predict survival in patients who present with orthopaedic manifestations of prostate cancer. A lower PSA is not necessarily a good prognostic sign. We believe that simple blood testing should be carried out routinely when assessing a patient, guiding potential surgical management and palliative care in the future.

Citation

Shepherd, K. L., Cool, P., & Cribb, G. (2018). Prognostic indicators of outcome for patients with skeletal metastases from carcinoma of the prostate. The Bone & Joint Journal, 100B(12), 1647-1654. https://doi.org/10.1302/0301-620X.100B12.BJJ-2018-0697.R1

Journal Article Type Article
Online Publication Date Dec 1, 2018
Publication Date 2018-12
Deposit Date Jun 26, 2023
Journal The Bone and Joint Journal
Print ISSN 2049-4394
Publisher British Editorial Society of Bone and Joint Surgery
Peer Reviewed Peer Reviewed
Volume 100B
Issue 12
Pages 1647-1654
DOI https://doi.org/10.1302/0301-620X.100B12.BJJ-2018-0697.R1
Public URL https://keele-repository.worktribe.com/output/507553