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Outcome after Surgery for Metastases to the Pelvic Bone: A Single Institutional Experience
Clinics in Orthopedic Surgery ; : 116-125, 2017.
Article in English | WPRIM | ID: wpr-71091
ABSTRACT

BACKGROUND:

The pelvic bone is the most common site of bone metastases following the axial skeleton. Surgery on the pelvic bone is a demanding procedure. Few studies have been published on the surgical outcomes of metastasis to the pelvic bone with only small numbers of patients involved. This study sought to analyze the complications, local progression and survival after surgery for metastasis to the pelvic bone on a larger cohort of patients.

METHODS:

We analyzed 83 patients who underwent surgery for metastases to the pelvic bone between the years 2000 and 2015. There were 41 men and 42 women with a mean age of 55 years. Possible factors that might be associated with complications, local progression and survival were investigated with regard to patient demographics and disease-related and treatment-related variables.

RESULTS:

The overall complication rate was 16% (13/83). Advanced age (> 55 years, p = 0.034) and low preoperative serum albumin levels (≤ 39 g/L, p = 0.001) were associated with increased complication rates. In patients with periacetabular disease, the complication rate was higher in those who underwent total hip replacement arthroplasty (THR) than those who did not (p = 0.030). Local progression rate was 46% (37/83). The overall median time to local progression was 26 ± 14.3 months. The median time from local progression to death was 13 months (range, 0 to 81 months). The local progression-free survival was 52.6% ± 6.4% at 2 years and 36.4%± 7.6% at 5 years, respectively. Presence of skip lesions (p = 0.017) and presence of visceral metastasis (p = 0.027) were found to be significantly associated with local progression. The median survival of all patients was 24 months. The 2-year and 3-year survival rates were 52.5% ± 5.9% and 35.6% ± 6%, respectively. Metastasis from the kidney, breast, or thyroid or of hematolymphoid origin (p = 0.014), absence of visceral metastasis (p = 0.017) and higher preoperative serum albumin levels (p = 0.009) were associated with a prolonged survival.

CONCLUSIONS:

Advanced age and low serum albumin levels were associated with high complication rates. Local progression after surgery for metastases to the pelvic bone was affected by the presence of skip lesions, not by surgical margins. Primary cancer type, serum albumin level and visceral metastasis influenced survival.
Subject(s)

Full text: Available Index: WPRIM (Western Pacific) Main subject: Pelvic Bones / Arthroplasty / Skeleton / Thyroid Gland / Bone Neoplasms / Breast / Serum Albumin / Demography / Survival Rate / Cohort Studies Type of study: Etiology study / Incidence study / Observational study / Risk factors Limits: Female / Humans / Male Language: English Journal: Clinics in Orthopedic Surgery Year: 2017 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pelvic Bones / Arthroplasty / Skeleton / Thyroid Gland / Bone Neoplasms / Breast / Serum Albumin / Demography / Survival Rate / Cohort Studies Type of study: Etiology study / Incidence study / Observational study / Risk factors Limits: Female / Humans / Male Language: English Journal: Clinics in Orthopedic Surgery Year: 2017 Type: Article