Abstract：
:Over 60% of our severely combat-injured patient population develops radiographically apparent heterotopic ossification. Nearly a third of these require surgical excision of symptomatic lesions, a procedure that is fraught with complications, and delays or regresses functional rehabilitation in many cases. Unfortunately, for the combat injured, medical contraindications and logistical limitations limit widespread use of conventional means of primary prophylaxis. Better means of risk stratification are needed to both mitigate the risk of current means of primary prophylaxis as well as to evaluate novel preventive strategies currently in development. We asked whether Raman spectral changes, measured ex vivo, correlated with histologic evidence of the earliest signs of HO formation using tissue biopsies from the wounds of combat casualties. In doing so, we compared normal muscle tissue to injured muscle tissue, unmineralized HO tissue, and mineralized HO tissue. The Raman spectra of these tissues demonstrate clear differences in the amide I and amide III spectral regions of HO tissue compared to normal tissue, denoted by changes in the 1640/1445cm(-1)(p<0.01), and 1340/1270cm(-1) (p<0.01) band area ratios (BARs). Additionally, analysis of the bone mineral in HO by Raman spectroscopy appears capable of determining bone maturity by measuring both the 945/960cm(-1) and the 1070/1445cm(-1) BARs. Raman may therefore prove a useful, non-invasive, and early diagnostic modality to detect HO formation prior to it becoming evident clinically or radiographically. This technique could ostensibly be utilized as a non-invasive means to risk stratify individual wounds at a time thought to be amenable to various means of primary prophylaxis.
journal_name
Bonejournal_title
Boneauthors
Crane NJ,Polfer E,Elster EA,Potter BK,Forsberg JAdoi
10.1016/j.bone.2013.08.026subject
Has Abstractpub_date
2013-12-01 00:00:00pages
335-42issue
2eissn
8756-3282issn
1873-2763pii
S8756-3282(13)00341-4journal_volume
57pub_type
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