[摘要]"目的"研究腰痛患者腰骶椎Modic改變(Modic"changes,MCs)及其類型與骨質(zhì)疏松的關(guān)系。方法"選取2021年1月至2024年9月于南京中醫(yī)藥大學(xué)附屬徐州市中醫(yī)院就診的女性腰痛患者204例為研究對(duì)象,根據(jù)磁共振成像結(jié)果將患者分為MCs組(139例)和無(wú)MCs組(65例),將MCs組按MCs分型分為Ⅰ型組(33例)、Ⅱ型組(90例)和Ⅲ型組(16例)。比較各組患者的年齡、髖部骨密度(bone"mineral"density,BMD)及其T值。結(jié)果""MCs組和無(wú)MCs組患者的年齡、髖部BMD及相應(yīng)T值比較差異均無(wú)統(tǒng)計(jì)學(xué)意義(Pgt;0.05)。四組患者的髖部BMD及相應(yīng)T值依次為Ⅲ型組gt;無(wú)MCs組gt;Ⅱ型組gt;Ⅰ型組。Ⅲ型組患者骨量多處于正常水平,其余三組患者多處于骨量減少或骨質(zhì)疏松水平。Ⅱ型組與無(wú)MCs組患者的髖部BMD及相應(yīng)T值比較差異均無(wú)統(tǒng)計(jì)學(xué)意義(Pgt;0.05),Ⅲ型組患者的髖部BMD及相應(yīng)T值均顯著高于其余三組(Plt;0.05)。Ⅰ型組患者的髖部BMD及相應(yīng)T值均顯著低于其余三組(Plt;0.05)。結(jié)論"腰痛患者不同的骨量水平有不同的MCs發(fā)病傾向:較高骨量(骨量正常)者多發(fā)生Ⅲ型MCs,骨量減少或骨質(zhì)疏松者則易發(fā)Ⅰ型MCs,應(yīng)重視Ⅰ型MCs患者的抗骨質(zhì)疏松治療。
[關(guān)鍵詞]"腰痛;Modic改變;骨密度
[中圖分類號(hào)]"R681.5""""""[文獻(xiàn)標(biāo)識(shí)碼]"A""""""[DOI]"10.3969/j.issn.1673-9701.2025.12.011
Correlation"between"Modic"changes"of"vertebral"body"and"osteoporosis"in"patients"with"low"back"pain
CAO"Wei,"HUI"Zhengguang,"XIA"Mengjiao,"LI"Chaoding,"ZHANG"Lei
Department"of"Orthopaedics,"Xuzhou"City"Hospital"of"Traditional"Chinese"Medicine"Affiliated"to"Nanjing"University"of"Chinese"Medicine,"Xuzhou"221000,"Jiangsu,"China
[Abstract]"Objective"To"investigate"the"relationship"between"lumbosacral"Modic"changes"(MCs)"and"their"types"and"osteoporosis"in"patients"with"low"back"pain."Methods"A"total"of"204"female"patients"with"low"back"pain"who"were"treated"in"Xuzhou"City"Hospital"of"Traditional"Chinese"Medicine"Affiliated"to"Nanjing"University"of"Chinese"Medicine"from"January"2021"to"September"2024"were"selected"as"study"objects."According"to"magnetic"resonance"imaging"results,"the"patients"were"divided"into"MCs"group"(139"cases)"and"non-MCs"group"(65"cases)."MCs"group"was"divided"into"type"Ⅰ"group"(33"cases),"type"Ⅱ"group"(90"cases)"and"type"Ⅲ"group"(16"cases)"according"to"MCs"type."The"age,"hip"bone"mineral"density"(BMD)"and"T"value"of"all"groups"were"compared."Results"There"was"no"significant"difference"in"age,"hip"BMD"and"T"value"between"MCs"group"and"non-MCs"group"(Pgt;0.05)."Hip"BMD"and"T"values"of"four"groups"were"type"Ⅲ"group"gt;"non-MCs"group"gt;"type"Ⅱ"group"gt;"type"Ⅰ"group."Most"of"patients"in"type"Ⅲ"group"had"normal"bone"mass,"and"most"of"patients"in"other"three"groups"had"decreased"bone"mass"or"osteoporosis."There"was"no"significant"difference"in"hip"BMD"and"T"value"between"type"Ⅱ"group"and"non-MCs"group"(Pgt;0.05)."The"hip"BMD"and"corresponding"T"values"of"patients"in"group"Ⅲ"significantly"higher"than"the"other"three"groups"(Plt;0.05).The"hip"BMD"and"corresponding"T"values"of"type"Ⅰ"patients"were"significantly"lower"than"those"of"the"other"three"groups"(Plt;0.05)."Conclusion"Patients"with"low"back"pain"have"different"tendency"of"MCs"with"different"bone"mass."High"bone"mass"(normal"bone"mass)"is"more"likely"to"develop"type"Ⅲ"MCs,"and"low"bone"mass"or"osteoporosis"is"more"likely"to"develop"type"Ⅰ"MCs."Anti-osteoporosis"therapy"for"patients"with"type"Ⅰ"MCs"should"be"emphasized.
[Key"words]"Low"back"pain;"Modic"changes;"Bone"mineral"density
腰痛是中老年人群常見(jiàn)疾病,腰椎磁共振成像(magnetic"resonance"imaging,MRI)??砂l(fā)現(xiàn)椎體終板炎癥,目前認(rèn)為其與腰痛具有明確的相關(guān)性[1]。終板炎在MRI上表現(xiàn)為終板及其下骨質(zhì)信號(hào)異常,1988年Modic等人對(duì)其進(jìn)行命名并系統(tǒng)描述。Modic改變(Modic"changes,MCs)的發(fā)生機(jī)制與椎間盤(pán)退變、終板及終板下骨應(yīng)力異常和損傷、局部感染、炎癥免疫因素、骨質(zhì)疏松、遺傳因素等有關(guān)[2]。目前MCs與骨質(zhì)疏松相關(guān)性的臨床研究較少,本研究采用髖部骨密度(bone"mineral"density,BMD)作為全身骨量的評(píng)估標(biāo)準(zhǔn)[3]并通過(guò)對(duì)MCs進(jìn)行分型,探討MCs各型的髖部BMD差異,為臨床合并MCs的腰痛患者是否進(jìn)行抗骨質(zhì)疏松治療提供依據(jù)。
1""資料與方法
1.1""研究對(duì)象
回顧性選取2021年1月至2024年9月于南京中醫(yī)藥大學(xué)附屬徐州市中醫(yī)院骨傷科就診的女性腰痛患者204例為研究對(duì)象。納入標(biāo)準(zhǔn):以腰痛為主訴;無(wú)骨質(zhì)疏松治療史,無(wú)腰椎骨折病史;均進(jìn)行腰椎MRI檢查及雙能X線BMD檢測(cè)。排除標(biāo)準(zhǔn):合并對(duì)骨代謝有明顯影響的相關(guān)疾病,如原發(fā)性甲狀旁腺功能亢進(jìn)癥、庫(kù)欣綜合征、甲狀腺疾病、類風(fēng)濕關(guān)節(jié)炎、強(qiáng)直性脊柱炎及嚴(yán)重神經(jīng)、呼吸、肝、腎系統(tǒng)疾??;長(zhǎng)期使用影響骨代謝的藥物,如糖皮質(zhì)激素、精神類藥物等。本研究經(jīng)南京中醫(yī)藥大學(xué)附屬徐州市中醫(yī)院醫(yī)學(xué)倫理委員會(huì)批準(zhǔn)(倫理審批號(hào):2025倫審臨字第004號(hào))。
1.2""研究方法
BMD測(cè)定采用雙能X線骨密度測(cè)量?jī)x(iDXA,GE,USA)記錄每位患者全髖關(guān)節(jié)及股骨頸BMD值及相應(yīng)T值。骨量評(píng)估標(biāo)準(zhǔn)[4]:骨量正常:T值≥–1.0;骨量減少:–1.0gt;T值gt;–2.5;骨質(zhì)疏松:T值≤–2.5。腰椎影像采用3.0T"MRI(Philips"Ingenia"Ⅱ,USA),由2名本院骨傷科脊柱組主任醫(yī)師根據(jù)腰椎MRI結(jié)果共同對(duì)是否存在MCs及其分型進(jìn)行判定并記錄,觀察目標(biāo)椎體為L(zhǎng)1~S1。MCs分型[4]:Ⅰ型(水腫型):T1加權(quán)成像呈低信號(hào),T2加權(quán)成像呈高信號(hào);Ⅱ型(脂肪型):T1加權(quán)成像呈高信號(hào),T2加權(quán)成像呈等信號(hào)或稍高信號(hào);Ⅲ型(硬化型):T1和T2加權(quán)成像均呈低信號(hào)。若同一患者出現(xiàn)兩種及以上類型MCs,則予排除。根據(jù)MRI結(jié)果將患者分為MCs組和無(wú)MCs組,比較兩組患者的年齡、全髖關(guān)節(jié)和股骨頸BMD值及相應(yīng)T值;MCs組進(jìn)一步分為Ⅰ、Ⅱ、Ⅲ型3個(gè)亞組,比較四組患者的年齡、全髖關(guān)節(jié)和股骨頸BMD值及相應(yīng)T值。
1.3""統(tǒng)計(jì)學(xué)方法
采用SPSS"28.0軟件進(jìn)行數(shù)據(jù)統(tǒng)計(jì)分析。計(jì)量資料符合正態(tài)分布的以均數(shù)±標(biāo)準(zhǔn)差(")表示,比較采用獨(dú)立樣本t檢驗(yàn)或LSD檢驗(yàn),不符合正態(tài)分布的以中位數(shù)(四分位數(shù)間距)[M(Q1,Q3)]表示,比較采用Wilcoxon秩和檢驗(yàn)或Kruskal-Wallis檢驗(yàn)。Plt;0.05為差異有統(tǒng)計(jì)學(xué)意義。
2""結(jié)果
2.1""MCs組和無(wú)MCs組患者的BMD和T值比較
MCs組患者139例,中位年齡61.0歲,無(wú)MCs組患者65例,中位年齡58.0歲,兩組患者的年齡比較差異無(wú)統(tǒng)計(jì)學(xué)意義(Z=2.090,P=0.175)。兩組患者的全髖關(guān)節(jié)和股骨頸BMD及T值比較差異均無(wú)統(tǒng)計(jì)學(xué)意義(Pgt;0.05),見(jiàn)表1。
2.2""Ⅰ、Ⅱ、Ⅲ型組和無(wú)MCs組患者的BMD和T值比較
MCs組患者中,Ⅰ型33例,Ⅱ型90例,Ⅲ型16例。Ⅰ、Ⅱ、Ⅲ型組和無(wú)MCs組的骨量減少患者分別為15例、41例、3例、33例,骨質(zhì)疏松患者分別為8例、15例、0例、5例。四組患者的全髖關(guān)節(jié)和股骨頸BMD及相應(yīng)T值依次為Ⅲ型組gt;無(wú)MCs組gt;Ⅱ型組gt;Ⅰ型組。根據(jù)T值平均值評(píng)估,Ⅲ型組患者處于骨量正常水平,其余三組均處于骨量減少水平,見(jiàn)表2。對(duì)四組患者的全髖關(guān)節(jié)和股骨頸BMD及相應(yīng)T值進(jìn)行參數(shù)檢驗(yàn)多重比較,結(jié)果顯示:Ⅱ型組與無(wú)MCs組患者的全髖關(guān)節(jié)和股骨頸BMD及相應(yīng)T值比較差異均無(wú)統(tǒng)計(jì)學(xué)意義(Pgt;0.05),Ⅲ型組患者的髖部BMD及相應(yīng)T值均顯著高于其余三組(Plt;0.05)。Ⅰ型組患者的髖部BMD及相應(yīng)T值均顯著低于其余三組(Plt;0.05)。
3""討論
流行病學(xué)研究顯示,MCs在無(wú)癥狀人群中的發(fā)生率為6%[5]。本研究中腰痛患者的MCs發(fā)生率高達(dá)68.14%。關(guān)于MCs分型與腰痛的關(guān)系,Ⅰ型與腰痛呈強(qiáng)相關(guān),Ⅱ型與腰痛呈弱相關(guān),Ⅲ型則與腰痛無(wú)明確相關(guān)性[6-7]。病理方面,Ⅰ型表現(xiàn)為骨組織的炎癥及骨代謝高轉(zhuǎn)換狀態(tài),Ⅱ型為骨組織脂肪變及成骨不足狀態(tài),Ⅲ型為骨組織的廣泛鈣化[8]。一般認(rèn)為MCs三型可混合存在并相互轉(zhuǎn)化,但大部分患者可長(zhǎng)期保持在某一型而不進(jìn)展,Ⅱ型最為常見(jiàn)且多處于穩(wěn)定狀態(tài);Ⅰ型為相對(duì)不穩(wěn)定狀態(tài),可維持不變或恢復(fù)正常,也可轉(zhuǎn)化為Ⅱ或Ⅲ型;Ⅲ型一般處于穩(wěn)定狀態(tài),但可合并Ⅰ或Ⅱ型[9-10]。
MCs常被認(rèn)為與椎間盤(pán)退變導(dǎo)致的椎體終板機(jī)械性損傷及由此帶來(lái)的炎癥免疫反應(yīng)直接相關(guān)[11]。MCs與骨質(zhì)疏松的關(guān)系目前尚未明確。研究表明MCs與BMD無(wú)相關(guān)性,但存在樣本量過(guò)小的問(wèn)題[12-13];亦有研究表明MCs發(fā)生率隨著腰椎BMD降低而升高[14-16]。但這些研究并未設(shè)置研究對(duì)象的入組年齡上限,高齡尤其是gt;70歲的女性椎體骨折發(fā)生率明顯上升,易將骨質(zhì)疏松性椎體骨折尤其是終板下骨折判定為MCs,影響最終研究結(jié)果[17]。MCs多合并腰椎退變(骨贅、終板硬化、小關(guān)節(jié)增生等),采用腰椎作為BMD測(cè)量部位,則BMD可被高估[18]。綜合上述研究,考慮MCs作為椎間盤(pán)退變伴隨病變多發(fā)生于40歲以上人群,本研究將研究對(duì)象年齡控制在40~70歲[19];為排除性別影響,單純針對(duì)女性開(kāi)展研究,采用髖部作為BMD測(cè)量部位以便更準(zhǔn)確反映骨量水平。
本研究結(jié)果顯示MCs組和無(wú)MCs組患者的骨量差異無(wú)統(tǒng)計(jì)學(xué)意義,與Wáng等[20]的研究結(jié)果相似。進(jìn)一步對(duì)MCs進(jìn)行分型研究,表明Ⅰ型組較無(wú)MCs組骨量低且多處于骨量減少或骨質(zhì)疏松水平,Ⅲ型組較無(wú)MCs組骨量高且多處于骨量正常水平,而Ⅱ型組與無(wú)MCs組相比骨量差異不大。Zhu等[21]通過(guò)對(duì)各型MCs進(jìn)行BMD評(píng)估,發(fā)現(xiàn)Ⅲ型BMD處于正常水平,Ⅱ型比Ⅰ型BMD高且均處于骨量減少水平,與本研究結(jié)果類似。提示骨量水平與MCs類型有一定關(guān)聯(lián):作為MCs的主要類型,Ⅱ型(脂肪型)多為骨代謝穩(wěn)定狀態(tài),提示骨量水平與年齡相匹配的大部分人群終板及終板下骨組織發(fā)生損傷可通過(guò)自我修復(fù)達(dá)到穩(wěn)定狀態(tài);低骨量代表著骨質(zhì)較脆弱及骨骼自我修復(fù)能力下降,更容易發(fā)生骨小梁斷裂和骨質(zhì)內(nèi)炎癥,骨轉(zhuǎn)換處于高代謝狀態(tài),炎癥是疼痛的主要來(lái)源之一,因此低骨量易發(fā)生疼痛較重的Ⅰ型改變;高骨量人群在椎間盤(pán)退變帶來(lái)的持續(xù)慢性應(yīng)力損傷下更容易發(fā)生終板下骨質(zhì)硬化,易形成MCs"Ⅲ型,代表著骨骼通過(guò)自我修復(fù)可達(dá)到增強(qiáng)骨質(zhì),從而一定程度抵消因椎間盤(pán)退變帶來(lái)的椎體內(nèi)應(yīng)力增加。
本研究提示應(yīng)重視合并MCs"Ⅰ型或Ⅱ型腰痛患者并進(jìn)行必要的骨質(zhì)疏松篩查及抗骨質(zhì)疏松治療。多項(xiàng)研究顯示給予腰痛患者抗骨質(zhì)疏松治療可降低MCs患病率,減輕患者疼痛,減小MCs累及椎體面積,對(duì)腰部功能長(zhǎng)期改善具有良好療效[22-24]。
綜上,腰痛患者中MCs發(fā)生率較高。不同骨量水平有不同的MCs發(fā)病傾向:較高骨量(骨量正常)多發(fā)生Ⅲ型MCs,骨量減少或骨質(zhì)疏松則易發(fā)生Ⅰ型MCs,Ⅱ型MCs骨量水平多與同齡人群相匹配。腰痛患者腰骶椎Ⅰ型MCs與骨質(zhì)疏松具有相關(guān)性,應(yīng)重視此類患者的抗骨質(zhì)疏松治療。
利益沖突:所有作者均聲明不存在利益沖突。
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(收稿日期:2025–02–09)
(修回日期:2025–04–02)