Managing Bone Metastasis in the Patient with Advanced Cancer
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2.0 ANCC Contact Hours Managing Bone Metastasis in the Patient With Advanced Cancer Lisa Monczewski Bone is the third most common site of cancer metastasis internal fi xation with a plate to her right humerus (see resulting in pain and other serious morbidities that can Figures 1 and 2 ). Mrs. A’s medical history includes a di- affect one’s quality of life. The orthopaedic patient with agnosis of Stage IIIA invasive ductal carcinoma of the bone metastasis faces many challenges and has complex right breast in 2006, at which time she underwent a nursing care needs. Managing care involves astute right mastectomy with lymph node dissection (with assessment skills, knowledge of treatments including four positive lymph nodes) and completed eight cycles of chemotherapy. Mrs. A also had radiation therapy to medication, surgery, and radiation therapy, and recognition the breast and axillary area following chemotherapy of serious complications such as fracture, spinal cord and she was started on hormone therapy to further compression, and hypercalcemia. Nurses play a vital role in decrease the risk of cancer recurrence. the patient treatment plan by implementing interventions For the next 5 years, Mrs. A did well as she continued that promote positive outcomes and prevent injuries. on hormone therapy and with routine follow-up visits and scans. However, in 2011, Mrs. A was diagnosed with bone metastasis to the right pelvis following a bone ore than 1.6 million people in the United scan. She began treatment with intravenous bisphos- States are expected to be diagnosed with phonate therapy every 4 weeks and another course of cancer this year (American Cancer Society, chemotherapy. Bisphosphonate therapy continued for 2012a). The leading cause of death among the next several months. Mpatients with cancer is metastatic disease. The bone is A few weeks ago, during one of Mrs. A’s follow-up the third most common site for cancer to spread to after visits, she reported new-onset sharp pain to her right the liver and lungs (Narazaki, Alverga Neto, Baptista, upper arm. She rated it as a 5/10 and noted that it in- Caiero, & DeCamargo, 2006). Breast, prostate, lung, creased in intensity with mobility. The medical oncolo- thyroid, and kidney cancers are the types of solid tumor gist ordered radiographs, which confi rmed the presence cancers that are most likely to spread to the bone of metastatic bone lesions and a fracture to the right (Narazaki et al., 2006 ). Multiple myeloma, which is a humerus. At that time she was referred to an orthopae- cancer of the plasma cells in the bone marrow, can dic surgeon for evaluation and surgery followed. invade the skeleton and form bone lesions. The spine, pelvis, femur, humerus, ribs, and skull are the most common sites of bone metastasis, although it can occur Pathophysiology anywhere in the skeleton (American Cancer Society, Bone remodeling is a physiologic process by which the 2012b). existing bone is resorbed and replaced with a new bone. This article examines the nursing management of a This process occurs when bone is exposed to stimuli patient with bone metastasis, including pain assessment, such as mechanical stress, hormones, drugs, or vita- recognition of serious complications, and treatment in- mins that activate bone cell apoptosis (Crowther- terventions. Insight into these areas will facilitate a better Radulewicz, 2010 ). In the normal remodeling cycle, a understanding of how bone metastasis can be managed structured balance exists between osteoclast cells to improve patient outcomes and increase quality of life. degrading and resorbing bone and osteoblasts building The case study described later illustrates how a patient new bone. Growth factors and hormones released dur- with cancer may present on an orthopaedic unit after ing bone remodeling play a role in regulating osteoclast being diagnosed with bone metastasis. and osteoblast activity (Reich, 2003 ). Case Study Lisa Monczewski, MSN, RN, OCN, Senior Clinical Nurse, University Mrs. A is a 60-year-old woman who has suffered a path- Hospitals Case Medical Center, Seidman Cancer Center, Cleveland, OH. ologic fracture of her right humerus as a result of breast The author has disclosed that she has no fi nancial interests to any cancer that has metastasized to her bone. She is recov- commercial company related to this educational activity. ering postoperatively following an open reduction and DOI: 10.1097/NOR.0b013e31829a4da3 © 2013 by National Association of Orthopaedic Nurses Orthopaedic Nursing • July/August 2013 • Volume 32 • Number 4 209 Copyright © 2013 by National Association of Orthopaedic Nurses. Unauthorized reproduction of this article is prohibited. NNOR200401.inddOR200401.indd 220909 004/07/134/07/13 55:21:21 PPMM F IGURE 1 . Permeative lytic lesion within the mid humeral diaphysis with a demonstrated transverse pathologic fracture. A disruption in the normal bone remodeling cycle The nurse should begin the review of systems with a occurs when cancer cells invade the bone matrix. focus on the patient’s pain. When caring for a patient Tumor cells reach the bone by detaching from the site with a known history of cancer, any report of new onset of the primary tumor, entering the vasculature, and ad- bone pain must be evaluated. The National hering to the capillaries of the bone (Albert, 2007 ). This Comprehensive Cancer Network (NCCN) guidelines for migration of cells into the bone further stimulates bone adult cancer pain include several components (NCCN, disintegration and the release of more growth factors 2012a). A quantifi ed pain intensity score should be ob- near the cancer cells (Fitch et al., 2009 ). Tumor cells tained using numerical rating scale when possible. The release their own growth factors in the bone and more nurse should perform a formal comprehensive pain as- bone degradation takes place (Albert, 2007 ). A vicious sessment asking the patient specifi c questions including cycle begins as more growth factor stimulates local location, duration, intensity, and the character of the tumor cell growth and more bone destruction. pain. The use of body sketch diagrams as part of the Metastatic lesions can be characterized as osteolytic, pain assessment documentation is helpful if pain occurs osteoblastic, or mixed (see Table 1 ). in more than one location. The nurse should ask the patient to describe what aggravates the pain and what relieves it, including an analgesic history. Often, pain Assessment related to bone metastasis is described as constant and Pain is the hallmark symptom of bone metastasis and usu- dull and is greater in intensity at night and with weight ally develops gradually (Albert, 2007 ). This type of pain is bearing (Reich, 2003 ). The physical examination should thought to result from tumor growing into the bone and include noting areas of edema, tenderness, decreased stimulating nerve endings in and around the bone. The range of motion, or abnormal positioning. pain may also be caused by the tumor stretching the peri- If bone metastasis is suspected, the nurse should no- osteum of the affected bone (Johnson & Knobf, 2008). tify the patient’s oncology physician or practitioner and F IGURE 2 . Placement of a lateral plate and screws at the pathologic fracture site of the mid humeral diaphysis. 210 Orthopaedic Nursing • July/August 2013 • Volume 32 • Number 4 © 2013 by National Association of Orthopaedic Nurses Copyright © 2013 by National Association of Orthopaedic Nurses. Unauthorized reproduction of this article is prohibited. NNOR200401.inddOR200401.indd 221010 004/07/134/07/13 55:21:21 PPMM although any tumor can cause SCC (Lewis, Hendrickson, TABLE 1. FEATURES OF METASTATIC BONE LESIONS & Moynihan, 2011). Spinal cord compression is an Type of oncologic emergency with early recognition and inter- Metastatic Associated vention crucial to patient outcomes. About 75%–100% Bone Lesions Characteristics Cancers of patients who are able to ambulate prior to SCC will Osteolytic • Increased bone breakdown • Lung remain ambulatory after treatment (Colen, 2008 ). causing bone erosion • Multiple However, of the patients who are experiencing partial or • Appear as punched out myeloma full paralysis prior to therapy, only 15%–30% will regain areas on x-ray • Kidney • More likely than • Breast function (Colen, 2008 ). Early signs of SCC include back osteoblastic lesions to • Thyroid pain, constipation, urinary retention, and incontinence. cause pathologic fracture Later signs are weakness, sensory impairment, and Osteoblastic • Increased sclerotic bone • Prostate sensory loss. Intravenous corticosteroids administered formations • Breast immediately are needed to decrease swelling, halt progression of neurologic symptoms, and reduce pain. Mixed • Include features of both • Breast Treatment may include surgery, external beam radia- osteolytic and osteoblastic tion therapy, or both, depending on degree of compres- Note : Based on the information from “Evaluating Bone sion, spinal column stability, and radiosensitivity of the Metastases,” by K. Albert, 2007, Clinical Journal of Oncology Nursing , 11 (2), pp. 193–197; and “Advances in the Treatment tumor (Lewis et al., 2011 ). of Bone Metastases,” by J. Reich, 2003, Clinical Journal of Oncology Nursing , 7 (6), pp. 641–646. HYPERCALCEMIA Approximately one-third of patients with cancer will ex- perience hypercalcemia at some point in the course of prepare the patient for diagnostic testing. This may their disease (Lewis et al., 2011 ). Eighty percent of ma- include