spinal_metastases

Spinal metastases

The Spine Oncology Study Group Outcome Questionnaire (SOSGOQ) includes all domains relevant for measurement of function and disability and its content validity is confirmed by linkage with the International Classification of Function and Disability ICF. This questionnaire has superior content capacity to measure disease burden of patients with spine metastases 1).

A study proposes a scoring methodology -after reversing 4 inversely scored items- for the SOSGOQ and demonstrates that the questionnaire is a valid tool for the assessment of quality of life in patients with metastatic spine disease. The SOSG-OQ is superior to the EQ-5D in terms of coverage and internal consistency, but consists of more questions 2).

Choi et al. recommend the use of the EQ-5D measure in research for assessment of patient-centered outcomes and calculation of cost effectiveness of surgery for spinal metastases. Routine use of the measure in clinical practice is also encouraged, because it is a simple and quick method to assess overall clinical outcome 3).

see Spinal metastases epidemiology.

see Spinal metastases classification.

There are three ways in which metastatic tumors can reach the epidural space. The most common way in approximately 85% of patients, the tumor reaches the spinal cord by the indirect route of an initial hematogenous metastases to the vertebral body and the metastases grows in the bone and then spreads into the epidural space, eventually causing secondary compression of the spinal cord 4).

The less common way is invasion of a paravertebral tumor directly into the spinal canal through an intervertebral foramen, which compresses the spinal cord. This process causes about 15% of MESCC and is commonly associated with lymphomas, Ewing's sarcoma, and neuroblastomas. However, least common mode of metastases described is the direct hematogenous spread to spinal epidural space, dura, or spinal cord 5).

Arterial

Venous 6).

Perinervous

Metastases to the spine are a common source of severe pain in cancer patients. The secondary effects of spinal metastases include pain, bone fractures, hypercalcemia, and neurological deficits. As the disease progresses, pain severity can increase until it becomes refractory to medical treatments and leads to a decreased quality of life for patients. A key obstacle in the study of pain-induced spinal cancer is the lack of reliable and reproducible spine cancer animal models 7).


Spinal metastases may present in a myriad of ways, most commonly back pain with or without neurology.

Apart from chronic and increasing pain, spinal metastases lead to neurological deficits due to destruction of the vertebral body and subsequent epidural growth expansion.

Back pain is the earliest and most common symptom of spinal epidural metastases. Back pain is present in more than 95% of patients at diagnosis 8).

Spinal epidural metastases associated back pain can takes several forms. Localized pain to the region of the spine affected by the metastases is usually the first symptom; typically, the pain progressively increases in intensity over time. This pain is caused when the bone marrow metastases extends to stretch the periosteum or invades soft tissues. Radicular pain due to compression or invasion of the nerve roots is commonly present in patients who develop MESCC. The pain is frequently unilateral with cervical or lumbosacral spine involvement or bilateral with thoracic spine involvement. Mechanical back pain is associated with spinal instability caused by vertebral body collapse and is relatively uncommon; it is made worse by movement and partially relieved by rest 9).

Spinal metastases diagnosis.

see Spinal metastases treatment

Spinal metastases outcome

see Spinal metastases case series.

An unusual presentation of isolated atypical chest pain preceding metastatic cord compression, secondary to penile carcinoma. Spinal metastases from penile carcinoma is rare with few cases reported. This unusual presentation highlights the need for a heightened level of clinical suspicion for spinal metastases as a possible cause for chest pain in any patients with a history of carcinoma. The case is discussed with reference to the literature 10).


1)
Street J, Lenehan B, Berven S, Fisher C. Introducing a new health-related quality of life outcome tool for metastatic disease of the spine: content validation using the International Classification of Functioning, Disability, and Health; on behalf of the Spine Oncology Study Group. Spine (Phila Pa 1976). 2010 Jun 15;35(14):1377-86. doi: 10.1097/BRS.0b013e3181db96a5. PubMed PMID: 20505561.
2)
Janssen SJ, Teunis T, van Dijk E, Ferrone ML, Shin JH, Hornicek F, Schwab JH. Validation of the Spine Oncology Study Group Outcomes Questionnaire to assess quality of life in patients with metastatic spine disease. Spine J. 2015 Aug 5. pii: S1529-9430(15)01197-3. doi: 10.1016/j.spinee.2015.07.456. [Epub ahead of print] PubMed PMID: 26254565.
3)
Choi D, Morris S, Crockard A, Albert T, Bunger C, Fehlings M, Harrop J, Kawahara N, Martin JA, Massicotte EM, Mazel C, Oner FC, Peul W, Tomita K, Wang M. Assessment of quality of life after surgery for spinal metastases: position statement of the Global Spine Tumour Study Group. World Neurosurg. 2013 Dec;80(6):e175-9. doi: 10.1016/j.wneu.2013.02.054. Epub 2013 Feb 16. PubMed PMID: 23422266.
4) , 8)
Cole JS, Patchell RA. Metastatic epidural spinal cord compression. Lancet Neurol. 2008;7:459–66.
5)
Metser U, Lerman H, Blank A, Lievshitz G, Bokstein F, Even-Sapir E. Malignant involvement of the spine: Assessment by 18F-FDG PET/CT. J Nucl Med. 2004;45:279–84.
6)
Batson OV. The function of the vertebral veins and their role in the spread of metastases. 1940. Clin Orthop Relat Res. 1995 Mar;(312):4-9. PubMed PMID: 7634616.
7)
Sarabia-Estrada R, Ruiz-Valls A, Guerrero-Cazares H, Ampuero AM, Jimenez-Estrada I, De Silva S, Bernhardt LJ, Goodwin CR, Ahmed AK, Li Y, Phillips NA, Gokaslan ZL, Quiñones-Hinojosa A, Sciubba DM. Metastatic human breast cancer to the spine produces mechanical hyperalgesia and gait deficits in rodents. Spine J. 2017 Apr 13. pii: S1529-9430(17)30143-2. doi: 10.1016/j.spinee.2017.04.009. [Epub ahead of print] PubMed PMID: 28412561.
9)
Mavrogenis AF, Pneumaticos S, Sapkas GS, Papagelopoulos PJ. Metastatic epidural spinal cord compression. Orthopedics. 2009;32:431–9.
10)
Pywell S, Hasan S, Sohail MZ, Mamarelis G, Dott C, Khan MT, Sivanadarajah N. Atypical Chest Pain: An Unusual Presentation of Spinal metastases due to Penile Carcinoma. Case Rep Surg. 2016;2016:7284070. Epub 2016 Jun 26. PubMed PMID: 27429829.
  • spinal_metastases.txt
  • Last modified: 2022/02/17 13:24
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