摘要:腰椎融合術(shù)是腰椎退行性疾病常用的外科干預(yù)、治療手段之一。腰椎融合術(shù)后少部分患者仍然留有或出現(xiàn)下腰痛等并發(fā)癥。脊柱-骨盆參數(shù)與腰椎融合術(shù)后患者并發(fā)癥的發(fā)生緊密相關(guān)。該文回顧了常用腰椎內(nèi)固定融合手術(shù)技術(shù)和主流脊柱-骨盆矢狀位參數(shù),并綜述了脊柱-骨盆矢狀位參數(shù)與包括下腰痛在內(nèi)的多種術(shù)后并發(fā)癥關(guān)系的相關(guān)研究進(jìn)展及現(xiàn)狀。
關(guān)鍵詞:腰椎;椎間盤退行性變;脊柱融合術(shù);腰痛;手術(shù)后并發(fā)癥;脊柱-骨盆矢狀位參數(shù)
中圖分類號(hào):R681.5文獻(xiàn)標(biāo)志碼:A DOI:10.11958/20241580
Research progress on the correlation between sagittal spinopelvic parameters and theprognosis of lumbar fusion surgery
JIANG Zehua1,CUI Haojun2,ZHANG Boyu1,REN Zhishuai1,MA Junfeng1,ZHANG Hongjie3,ZHU Rusen1△
1 Department of Spine Surgery,Tianjin Union Medical Center,Tianjin 300121,China;2 Department of Spine Surgery,Tianjin Union Medical Center,Tianjin Medical University;3 Department of Spine Surgery,Dehong People's Hospital
△Corresponding Author E-mail:zrsspine@163.com
Abstract:lumbar fusion surgery is one of the commonly used surgical interventions and treatments for lumbar degenerative diseases.A small proportion of patients still experience complications such aslow back pain after lumbar fusion surgery.Spinal-pelvic parameters are closely related to the occurrence of complications in patients after lumbar fusion surgery.This article reviews the commonly used lumbar fixation and fusion surgical techniques and mainstream sagittal spinal-pelvic parameters.Additionally,it summarizes the research progress and current status regarding the relationship between sagittal spinal-pelvic parameters and various postoperative complications,including low back pain.
Key words:lumbar vertebrae;intervertebral disc degeneration;spinal fusion;lumbago;postoperative complications;sagittal spinal-pelvic parameters
隨著我國人口老齡化的加劇,腰椎退行性疾病的發(fā)病率呈上升趨勢(shì),其臨床上主要表現(xiàn)為反復(fù)發(fā)作的腰腿部疼痛,嚴(yán)重降低了老年人的生活質(zhì)量。癥狀較嚴(yán)重者常需手術(shù)治療,采用腰椎融合術(shù)治療可獲得較好的療效[1]。術(shù)后大部分患者癥狀明顯改善,但仍有小部分患者術(shù)后出現(xiàn)持續(xù)的下腰痛。近年有研究顯示,脊柱-骨盆參數(shù)可能是影響術(shù)后療效的關(guān)鍵指標(biāo),因此越來越多的研究開始關(guān)注腰椎融合術(shù)后脊柱-骨盆的矢狀位變化,以及與術(shù)后出現(xiàn)頑固性下腰痛等并發(fā)癥的關(guān)系[2-3]。本文就腰椎融合術(shù)后出現(xiàn)下腰部疼痛與脊柱-骨盆矢狀位參數(shù)變化間關(guān)系的研究進(jìn)展進(jìn)行綜述。
1腰椎退行性疾病的內(nèi)固定融合手術(shù)治療
目前腰椎退行性疾病的手術(shù)治療方法眾多,主要分為融合手術(shù)和非融合手術(shù)。融合手術(shù)可以重建脊柱穩(wěn)定性,尤其適用于伴有腰椎滑脫、腰椎失穩(wěn)的患者[4]。腰椎后路椎間融合術(shù)(posterior lumbar interbody fusion,PLIF)是最經(jīng)典的術(shù)式,采取脊柱后入路清理椎間盤、黃韌帶及關(guān)節(jié)突骨化增生,可更好地恢復(fù)腰椎正常生理曲度,充分減壓神經(jīng)根。經(jīng)椎間孔椎間融合術(shù)(transforaminal lumbar interbody fusion,TLIF)是由PLIF發(fā)展而來的更精細(xì)的手術(shù),采取椎間孔入路,減少硬膜囊、神經(jīng)根、腰背部肌肉牽拉的同時(shí)保留椎弓根和椎板骨性結(jié)構(gòu),增加上下椎體之間的穩(wěn)定性。除前兩者外,斜外側(cè)腰椎椎間融合術(shù)(oblique lumbar interbody fusion,OLIF)、外側(cè)腰椎椎間融合術(shù)(lateral lumbar interbody fusion,LLIF)以及腰椎前路椎間融合術(shù)(anterior lumbar interbody fusion,ALIF)等術(shù)式也在臨床上廣泛使用[5]。
2脊柱-骨盆矢狀位影像學(xué)參數(shù)
脊柱-骨盆矢狀位參數(shù)是評(píng)估脊柱矢狀位平衡的關(guān)鍵參數(shù)[6]。骨盆投射角(pelvic incidence,PI)、骨盆傾斜角(pelvic tilt,PT)、骶骨傾斜角(sacral slope,SS)、腰椎前凸角(lumbar lordosis,LL)、胸椎后凸角(thoracic kyphosis,TK)和矢狀面垂直軸(sagittal vertical axis,SVA)一起構(gòu)成了以PI為核心的脊柱-骨盆矢狀位參數(shù)體系。
2.1 PI 1998年Legave給出了PI的定義:先畫出骶骨上終板延長線的垂線,再連接骶骨上終板中點(diǎn)與股骨頭中心,這兩線間夾角即為PI[7]。PI反映了骶骨、髖臼及股骨頭等骨盆結(jié)構(gòu)間的位置關(guān)系。骨盆骨骼發(fā)育成熟后,PI值便保持穩(wěn)定。脊柱骨盆代償變化、失衡或平衡重建時(shí),PI值均無明顯變化。Gutman等[8]測(cè)量發(fā)現(xiàn),男性PI值平均45.7°±11.11°,女性平均46.3°±10.8°。目前,脊柱外科學(xué)者普遍認(rèn)為PI值在40°~60°為正常。PI值與骨盆前后徑呈正相關(guān),值越大,骨盆后傾角度越大,通過骨盆后傾糾正脊柱矢狀位失平衡的代償能力越強(qiáng);反之,PI值小,骨盆后傾角度小,代償能力弱。因此,骨盆后傾是脊柱矢狀位失平衡時(shí)調(diào)節(jié)骨盆參數(shù)的重要機(jī)制[9]。PT、SS則是反映骨盆代償狀態(tài)下的功能參數(shù)。
2.2 PT與SS先畫出經(jīng)過雙側(cè)股骨頭中心連線的垂線,然后連接這條連線的中點(diǎn)與骶骨上終板的中點(diǎn),它們之間形成的夾角即為PT。SS則是表示骶骨位置形態(tài)的一個(gè)參數(shù),它是骶骨上終板延長線與水平線之間的夾角。根據(jù)研究顯示,PI、SS和PT之間存在一個(gè)簡(jiǎn)單的幾何學(xué)關(guān)系,即PI等于SS與PT之和[10]。Yang等[11]通過對(duì)健康人群的脊柱骨盆矢狀位參數(shù)進(jìn)行測(cè)量分析發(fā)現(xiàn),參數(shù)中的PI與PT、SS之間存在著極為顯著的相關(guān)性。Barrey等[12]通過量化分析發(fā)現(xiàn),通常情況下,PT值應(yīng)該小于PI值的一半,也就是說,理想的SS值應(yīng)該大于PI值的一半。Delsole等[13]對(duì)接受髖關(guān)節(jié)置換術(shù)的脊柱畸形患者進(jìn)行回顧性研究發(fā)現(xiàn),即便這些患者術(shù)后下肢、骨盆與髖關(guān)節(jié)的匹配程度處于合理范圍,但與正常脊柱矢狀位序列的患者相比,其出現(xiàn)假體不穩(wěn)定甚至脫位等術(shù)后并發(fā)癥的風(fēng)險(xiǎn)仍然明顯更高。另外,Blackwell等[14]研究顯示,盡管骨盆傾斜并不影響股骨頭的整體覆蓋率,但其對(duì)股骨頭上外側(cè)區(qū)域的覆蓋率分布產(chǎn)生了顯著的影響,最終導(dǎo)致髖關(guān)節(jié)活動(dòng)受限。這表明下肢手術(shù)中脊柱骨盆參數(shù)的合理匹配同樣受到了更多關(guān)注。在熟知的脊柱-骨盆參數(shù)中,PT是反映矢狀面平衡對(duì)下肢影響的最敏感指標(biāo)[15]。
2.3 LL LL是指L1椎體上終板延長線與S1椎體上終板延長線之間所形成的夾角。一些研究顯示,隨著人們年齡的增長,站立時(shí)的LL會(huì)逐漸減少,而減少的速度可能與個(gè)體初始的LL有關(guān);而LL又取決于個(gè)體的PI和SS[16-18]。Kleeman-Forsthuber等[19]發(fā)現(xiàn)PI與SS、脊柱骨盆傾斜(sacropelvic tilt,SPT)及LL參數(shù)之間呈現(xiàn)出了顯著的正相關(guān)性,這可能是機(jī)體為了維持脊柱矢狀平衡而采取的一種補(bǔ)償機(jī)制。有研究表明,LL與腰椎椎間盤及椎體皮質(zhì)骨的壓力呈負(fù)相關(guān),這充分說明良好的姿勢(shì)對(duì)預(yù)防腰椎退行性疾病及腰椎骨折的重要性[20]。Kim等[21]指出,對(duì)于脊柱失穩(wěn)的患者,在進(jìn)行腰椎矢狀位平衡重建時(shí),LL與PI之間的差值應(yīng)當(dāng)控制在±9°以內(nèi),并得出LL的理想值公式:LL=0.623×PI+20.611°。另外,針對(duì)中國中老年人群,通過對(duì)其脊柱-骨盆矢狀位序列關(guān)系的深入分析發(fā)現(xiàn),該人群的理想LL值為:LL=0.6×PI+0.4×TK+10°,這一矯形標(biāo)準(zhǔn)已被西方脊柱外科學(xué)界普遍接受[22]。PI與LL的差值能夠作為一項(xiàng)評(píng)估指標(biāo)判斷患者的PI與LL在形態(tài)學(xué)上是否匹配。理論上說,PI與LL的差值應(yīng)當(dāng)控制在11°以內(nèi),一旦超過這個(gè)范圍,就可以認(rèn)為是PI與LL之間存在不匹配的情況[23-24]。Inami等[25]指出,PI-LL值與預(yù)期的臨床治療效果有時(shí)會(huì)出現(xiàn)不一致,這種差異可能與個(gè)體對(duì)PI的反應(yīng)差異有關(guān)。脊柱矢狀面的平衡狀態(tài)是脊柱形態(tài)特征的總體反映,涉及脊柱、骨盆和下肢的協(xié)同代償機(jī)制。當(dāng)PI與LL的差值達(dá)到或超過10°時(shí),可作為手術(shù)矯正矢狀面失衡的參考標(biāo)準(zhǔn)。保持胸腰段的正常形態(tài)對(duì)于預(yù)防因PI和LL不匹配導(dǎo)致的整體矢狀面失衡具有關(guān)鍵作用。
2.4 SVA SVA為頸7錐體中點(diǎn)的鉛垂線(C7PL)與S1后上角垂線的相對(duì)關(guān)系,是用于判斷脊柱矢狀位有無失平衡的一項(xiàng)重要指標(biāo),定義鉛垂線位于S1上終板后緣頂點(diǎn)前方時(shí)為正值。當(dāng)SVA超過4 cm時(shí),定義為矢狀面失平衡,SVA超過9.5 cm時(shí),為嚴(yán)重矢狀面失平衡。Oliveira等[26]研究顯示脊髓結(jié)構(gòu)的損傷程度與SVA的數(shù)值呈正相關(guān),脊柱損傷較為嚴(yán)重的患者,胸椎后凸的現(xiàn)象顯著增加,TK顯著增加,這一結(jié)果提示軸向脊柱關(guān)節(jié)炎患者的姿勢(shì)改變可能最初起源于胸椎部位。另外,Bouknaitir等[27]研究顯示,單純減壓術(shù)后患者的SVA及PI-LL錯(cuò)配(PI與LL的差值應(yīng)該不超過10°,若超過該界限,即為PI-LL錯(cuò)配)顯著降低;此外,SVA與脊柱畸形患者自述的殘疾程度聯(lián)系最為密切。Kaneko等[28]研究揭示,SVA的增加是導(dǎo)致跌倒及其后續(xù)橈骨遠(yuǎn)端骨折的重要風(fēng)險(xiǎn)因素。Sherrington等[29]研究顯示運(yùn)動(dòng)訓(xùn)練能夠有效改善SVA,降低跌倒的發(fā)生率。Liu等[30]研究發(fā)現(xiàn)青少年特發(fā)性脊柱側(cè)彎患者的靜態(tài)平衡狀態(tài)與特定的三維脊柱骨盆參數(shù)——脊柱軸向垂直偏移、PT以及骨盆軸向旋轉(zhuǎn)之間存在著緊密的關(guān)聯(lián)。Niu等[31]研究發(fā)現(xiàn),年齡與脊柱矢狀面角(spino-sacral-angle,SSA)是構(gòu)成非特異性下腰痛患者殘疾狀態(tài)的兩大獨(dú)立影響因素。SSA的數(shù)值下降意味著患者脊柱矢狀面平衡的失衡,這種失衡狀態(tài)會(huì)加劇非特異性下腰痛患者的殘疾程度。
3腰椎融合術(shù)后下腰痛的機(jī)制
腰椎術(shù)后持續(xù)存在的背部或腿部疼痛癥狀稱為“腰椎術(shù)后的腰背部綜合征”,可能由多種因素引發(fā),發(fā)生率高達(dá)10%~40%[32]。PLIF后,骶髂關(guān)節(jié)痛(sacroiliac joint pain,SIJP)成為背部手術(shù)失敗綜合征的一種常見癥狀。術(shù)后患有SIJP的患者會(huì)有更高的體質(zhì)量指數(shù),同時(shí)腹部肥胖程度也更為顯著[33]。此外,這些患者中PI與LL的差值超過10°,以及SVA大于5 cm的發(fā)生率均相對(duì)較高。新發(fā)SIJP是TLIF手術(shù)后常見的并發(fā)癥之一,對(duì)比未出現(xiàn)術(shù)后SIJP的患者,新發(fā)SIJP的患者在術(shù)前和術(shù)后的LL均明顯減小,同時(shí)術(shù)后PT顯著升高;另外,下腰椎前凸角的頭側(cè)移位與新發(fā)SIJP之間存在顯著的相關(guān)性[32]。
老年腰椎退行性病變表現(xiàn)各異。由于椎間盤退變、骨質(zhì)疏松、肌肉萎縮,髖膝關(guān)節(jié)疾病等因素,導(dǎo)致身體向前傾斜,腰部疼痛,甚至行走困難。在腰椎不穩(wěn)定的手術(shù)治療中,穩(wěn)固的內(nèi)固定是確保療效的基礎(chǔ)。然而,如果術(shù)后患者出現(xiàn)腰背部疼痛,這通常意味著治療效果并不理想。腰椎手術(shù)后出現(xiàn)腰痛的原因主要包括以下幾點(diǎn):(1)小關(guān)節(jié)性疼痛,手術(shù)過程中可能會(huì)損傷腰椎后部結(jié)構(gòu),導(dǎo)致小關(guān)節(jié)承受更大的壓力,進(jìn)而引發(fā)關(guān)節(jié)突增生,對(duì)神經(jīng)根產(chǎn)生額外的壓迫[34]。(2)腰椎后部的伸肌群在生理曲度的作用下,像杠桿一樣維持自身的穩(wěn)定,然而當(dāng)LL丟失時(shí),腰背部肌肉對(duì)腰椎的支撐作用會(huì)減弱。為了維持腰部的局部穩(wěn)定,肌肉需要持續(xù)緊張并做功,這會(huì)導(dǎo)致肌肉長時(shí)間負(fù)荷而引發(fā)缺氧和缺血,這種持續(xù)的負(fù)荷還會(huì)導(dǎo)致腰背部肌肉疲勞,甚至引起肌肉萎縮和疼痛[35]。(3)其他。椎間盤的支撐作用是保持椎間隙高度的關(guān)鍵,它能吸收局部震動(dòng)并支撐身體重量,然而當(dāng)椎間盤突出時(shí),主要的病理變化是纖維環(huán)的破裂和髓核的游離,這導(dǎo)致局部應(yīng)力重新分布,打破了腰椎的自然平衡;手術(shù)可能進(jìn)一步破壞了椎間盤纖維環(huán)、腰椎后柱和髓核的完整性,從而削弱了椎間盤與椎體之間的支撐結(jié)構(gòu),這種損傷會(huì)改變腰椎運(yùn)動(dòng)節(jié)段在矢狀面的穩(wěn)定性,進(jìn)而引起下腰痛[20]。
直立狀態(tài)下,脊柱-骨盆矢狀面的代償性調(diào)節(jié)對(duì)于維持身體平衡至關(guān)重要。脊柱矢狀面的失衡會(huì)顯著影響生活質(zhì)量,而矢狀面的恢復(fù)程度直接影響臨床治療效果。站立時(shí),人體的平衡調(diào)整和維持依賴于椎間微動(dòng)。脊柱矢狀面失衡可能導(dǎo)致腰椎前凸減少和骶骨傾斜角增大。身體前傾時(shí),椎旁肌肉需增強(qiáng)牽拉以維持重心穩(wěn)定,這極易引發(fā)疲勞性腰背部疼痛。腰椎力學(xué)失衡,伴隨小關(guān)節(jié)增生、關(guān)節(jié)囊和黃韌帶增厚,可能導(dǎo)致腰背痛及神經(jīng)癥狀。術(shù)后矢狀面參數(shù)失衡會(huì)增加相鄰節(jié)段椎間盤的負(fù)荷,加速退變。正常的脊柱-骨盆序列是承受身體載荷的基礎(chǔ),一旦正常序列被破壞,椎間盤內(nèi)應(yīng)力的重新分布會(huì)導(dǎo)致局部應(yīng)力變化,最終引發(fā)應(yīng)力性病變。
腰椎融合術(shù)后PT會(huì)增加,這一現(xiàn)象在Shin等[36]關(guān)于后腰椎椎體間融合手術(shù)的研究中也被報(bào)道。這種骨盆傾斜角度的變化是脊柱與骨盆為了保持矢狀面平衡而自發(fā)形成的一種代償機(jī)制。據(jù)相關(guān)研究指出,這種傾斜角度的增加會(huì)伴隨著能量消耗的增多、疼痛感的加劇以及手術(shù)效果的欠佳[37]。
4腰椎融合術(shù)后療效與脊柱-骨盆矢狀位參數(shù)的相關(guān)性
腰椎融合手術(shù)的目標(biāo)是重建或改善脊柱的矢狀位平衡,若手術(shù)未能實(shí)現(xiàn)這一目標(biāo),患者可能會(huì)面臨一系列嚴(yán)重的并發(fā)癥,如下腰痛、癥狀性相鄰節(jié)段退變(adjacent segment degeneration,ASD)、椎弓根骨折以及髖關(guān)節(jié)退行性變等。不少學(xué)者提出矢狀位序列的評(píng)估方法,如影像學(xué)、圖像分析等。在影像學(xué)分析中,測(cè)量矢狀面參數(shù)是一種常見且有效的方法。然而,學(xué)者們對(duì)于整體平衡與局部平衡的選擇、新舊參數(shù)的應(yīng)用以及手術(shù)方案的制定等方面提出了一些疑問。單一參數(shù)的變化可能與疼痛、活動(dòng)功能和生活質(zhì)量密切相關(guān)。術(shù)前的綜合評(píng)估對(duì)于理解脊柱-骨盆矢狀面參數(shù)之間的相互影響和代償機(jī)制至關(guān)重要,這有助于確定手術(shù)矯正的適宜范圍,以期達(dá)到最佳的手術(shù)效果。Liang等[38]針對(duì)腰椎間盤突出癥患者的研究顯示,在術(shù)后第1天,所有矢狀面不平衡參數(shù)均呈現(xiàn)出顯著的改善,并且這種改善效果持續(xù)至3個(gè)月,直至參數(shù)接近正常范圍。Shin等[36]研究發(fā)現(xiàn),在腰椎融合術(shù)后,若PT較大,LL的改善效果通常不佳,且患者術(shù)后出現(xiàn)骶髂關(guān)節(jié)疼痛的風(fēng)險(xiǎn)增加。因此,術(shù)前對(duì)PI進(jìn)行評(píng)估,并恢復(fù)理想的LL值以重建脊柱矢狀面平衡,可以有效預(yù)防術(shù)后骶髂關(guān)節(jié)疼痛的發(fā)生。Liow等[39]研究指出,對(duì)于那些SS增加至30°或以上的患者,在接受短節(jié)段腰椎融合手術(shù)后,腰背痛顯著減輕,這一改善與術(shù)后LL的增加緊密相關(guān),同時(shí)表明了矢狀面平衡的優(yōu)化。既往研究證實(shí),脊柱矢狀面的平衡狀態(tài)由頸椎、腰椎、骨盆以及下肢的形態(tài)學(xué)特征共同決定[12]。Wanivenhaus等[40]研究指出,在單節(jié)段椎間融合手術(shù)后導(dǎo)致L5椎弓根骨折的幾大關(guān)鍵風(fēng)險(xiǎn)因素包括女性患者,較高的PI、SS、L5椎體斜率,L5椎體入射率及術(shù)后LL的變化。Yoon等[41]研究發(fā)現(xiàn),高PT和PI-LL不匹配是患者在接受單節(jié)段ALIF后出現(xiàn)ASD的重要危險(xiǎn)因素。Rothenfluh等[42]研究發(fā)現(xiàn),當(dāng)成人退變性脊柱側(cè)凸患者的PI與LL的差值超過10°時(shí),鄰近節(jié)段發(fā)生病變及再次手術(shù)的風(fēng)險(xiǎn)顯著增加。Kawai等[43]研究表明,在脊柱融合手術(shù)中,PI、SS以及PI-LL這3個(gè)關(guān)鍵指標(biāo)與術(shù)后髖關(guān)節(jié)退變變窄的進(jìn)展趨勢(shì)緊密相關(guān),當(dāng)融合涉及4個(gè)或更多脊柱節(jié)段時(shí),這種關(guān)聯(lián)性尤為顯著。
腰椎融合手術(shù)術(shù)式較多,內(nèi)固定和椎間融合以及關(guān)節(jié)植骨等手術(shù)方式已非常成熟,但術(shù)后仍有不少患者在體位改變時(shí)出現(xiàn)腰背痛。體位變化時(shí)矢狀位參數(shù)隨之發(fā)生明顯變化。對(duì)于輕至中度矢狀面失衡的成年人,不同的手術(shù)方法可以獲得良好的影像學(xué)效果,但術(shù)后腰背痛的情況卻存在差異。這表明腰椎術(shù)后慢性腰痛與脊柱矢狀面前凸的改變密切相關(guān)。通過恢復(fù)LL可以實(shí)現(xiàn)脊柱整體矢狀面的序列調(diào)整,從而達(dá)到腰椎融合術(shù)的治療目標(biāo)[44]。大多數(shù)腰椎管狹窄癥患者伴有矢狀面失衡和LL減小的情況。此外,術(shù)前腰椎前凸角度對(duì)腰椎管狹窄癥的手術(shù)效果具有重要影響[38]。
在制定手術(shù)方案時(shí),矢狀面失衡的指標(biāo)相較于冠狀面失衡更為重要[45]。對(duì)于接受腰椎短節(jié)段椎間融合手術(shù)的患者,也需關(guān)注脊柱-骨盆矢狀面的參數(shù)。腰椎單節(jié)段的角度變化,即使是單一參數(shù),也會(huì)對(duì)整體的矢狀面參數(shù)產(chǎn)生影響。因此,無論采取何種手術(shù)方法,對(duì)于矢狀面嚴(yán)重失衡的患者,重建矢狀面的平衡是獲得滿意療效的關(guān)鍵。
5小結(jié)
腰椎融合術(shù)作為治療腰椎退行性疾病的重要手段,術(shù)后部分患者下腰痛的發(fā)生與其脊柱-骨盆的特定參數(shù)密切相關(guān)。脊柱-骨盆矢狀位參數(shù)在預(yù)測(cè)和干預(yù)術(shù)后并發(fā)癥方面具有重要作用。隨著對(duì)脊柱-骨盆生物力學(xué)特性及個(gè)體化治療策略研究的深入,今后有望進(jìn)一步優(yōu)化腰椎融合術(shù)的治療方案,減少術(shù)后并發(fā)癥,提高患者的生活質(zhì)量。
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(2024-10-18收稿2024-11-21修回)
(本文編輯李志蕓)