【摘要】 目的:探討活動平臺單髁置換術(shù)(UKA)與全膝關(guān)節(jié)置換術(shù)(TKA)治療膝關(guān)節(jié)內(nèi)側(cè)間室重度骨性關(guān)節(jié)炎(OA)的臨床效果。方法:選取2022年1月—2023年9月上海市第一人民醫(yī)院蚌埠醫(yī)院收治的50例膝關(guān)節(jié)內(nèi)側(cè)間室重度OA患者為研究對象,根據(jù)隨機(jī)數(shù)字表法分為UKA組(n=25)和TKA組(n=25)。比較兩組手術(shù)時(shí)間、切口長度、術(shù)中出血量、住院時(shí)間、術(shù)后膝關(guān)節(jié)屈曲至90°所需時(shí)間、視覺模擬評分法(VAS)評分、西安大略和麥克馬斯特大學(xué)骨關(guān)節(jié)炎指數(shù)(WOMAC)評分、美國特種外科醫(yī)院(HSS)評分、關(guān)節(jié)活動度(ROM)、關(guān)節(jié)遺忘評分(FJS)、脛骨近端內(nèi)側(cè)角(mMPTA)、髖-膝-踝角(HKA)、脛骨平臺后傾角(PTS)、股脛角(FTA)。結(jié)果:兩組均成功完成手術(shù)。與TKA組相比,UKA組切口小,術(shù)中出血量少,手術(shù)時(shí)間、住院時(shí)間及術(shù)后膝關(guān)節(jié)屈曲至90°所需時(shí)間均短,差異均有統(tǒng)計(jì)學(xué)意義(P<0.05)。術(shù)后6個(gè)月,UKA組VAS評分、ROM、FJS均優(yōu)于TKA組,差異均有統(tǒng)計(jì)學(xué)意義(P<0.05);兩組WOMAC、HSS評分比較,差異均無統(tǒng)計(jì)學(xué)意義(P>0.05)。術(shù)前及術(shù)后6個(gè)月,兩組mMPTA、HKA、PTS、FTA比較,差異均無統(tǒng)計(jì)學(xué)意義(P>0.05)。兩組隨訪期間均未出現(xiàn)手術(shù)相關(guān)并發(fā)癥。結(jié)論:對于膝關(guān)節(jié)內(nèi)側(cè)間室重度OA,活動平臺UKA較TKA手術(shù)創(chuàng)傷更小,疼痛緩解更明顯,關(guān)節(jié)功能恢復(fù)更佳。
【關(guān)鍵詞】 單髁置換術(shù) 全膝關(guān)節(jié)置換術(shù) 骨性關(guān)節(jié)炎
Clinical Efficacy of Movable Platform Unicompartmental Knee Arthroplasty in the Treatment of Severe Osteoarthritis in the Medial Compartment of the Knee Joint/WEI Yangyang, YUAN Lingli, ZHANG Zhongchuan. //Medical Innovation of China, 2024, 21(22): 0-019
[Abstract] Objective: To investigate the clinical efficacy of movable platform unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA) in the treatment of severe osteoarthritis (OA) in the medial compartment of the knee joint. Method: A total of 50 patients with severe OA in the medial compartment of the knee joint who were admitted to Bengbu Hospital of Shanghai General Hospital from January 2022 to September 2023 were selected as the study subjects, and were divided into UKA group (n=25) and TKA group (n=25) by the random number table method. The operation time, incision length, intraoperative blood loss, hospital stay, time for knee joint flexion 90°, visual analogue scale (VAS) score, the Western Ontario and McMaster universities osteoarthritis index (WOMAC) score, hospital for special surgery (HSS) score, range of motion (ROM) and forgotten joint score (FJS), mechanical medial proximal tibial angle (mMPTA), hip-knee-ankle angle (HKA), posterior tibial slope (PTS) and femorotibial angle (FTA) were compared between the two groups. Result: All operations were successfully completed in both groups. Compared with the TKA group, incision was smaller, intraoperative blood loss was less, operation time, hospital stay and time for knee flexion 90° were shorter in the UKA group, the differences were statistically significant (P<0.05). At 6 months postoperatively, the VAS score, ROM and FJS in the UKA group were better than those in the TKA group, the differences were statistically significant (P<0.05); there were no significant differences in WOMAC and HSS scores between the two groups (P>0.05). At the preoperative and 6 months postoperatively, X-ray showed that there were no significant differences in mMPTA, HKA, PTS and FTA between the two groups (P>0.05). There were no surgery-related complications in both groups during the follow-up period. Conclusion: For severe OA in the medial compartment of the knee joint, compared with TKA, the movable platform UKA has less trauma, more obvious pain relief and better joint function recovery.
[Key words] Unicompartmental knee arthroplasty Total knee arthroplasty Osteoarthritis
First-author's address: Department of Orthopedics, Bengbu Hospital of Shanghai General Hospital, Bengbu 233000, China
doi:10.3969/j.issn.1674-4985.2024.22.004
膝關(guān)節(jié)骨性關(guān)節(jié)炎(OA)是一種常見的關(guān)節(jié)退行性疾病,常見于老年群體,主要表現(xiàn)為關(guān)節(jié)軟骨磨損、周圍骨贅增生、關(guān)節(jié)疼痛畸形及功能障礙,其受累部位最常見于膝關(guān)節(jié)內(nèi)側(cè)間室[1]?;顒悠脚_單髁置換術(shù)(UKA)和全膝關(guān)節(jié)置換術(shù)(TKA)是治療膝關(guān)節(jié)內(nèi)側(cè)間室重度OA常采用的兩種手術(shù)方式[2-3]。雖然TKA治療膝關(guān)節(jié)內(nèi)側(cè)間室重度OA的技術(shù)目前已經(jīng)較為穩(wěn)定和成熟,但仍有部分患者對該術(shù)式的臨床效果不滿意[4-5]。與傳統(tǒng)的TKA術(shù)式相比,活動平臺UKA作為一種相對微創(chuàng)的手術(shù)方式,其僅僅對膝關(guān)節(jié)的內(nèi)側(cè)間室進(jìn)行假體置換,可以保留更多的正常膝關(guān)節(jié)組織,更大程度地保存膝關(guān)節(jié)的本體感覺及運(yùn)動學(xué)組成部分,具有創(chuàng)傷小、恢復(fù)快等優(yōu)勢[6-7]。從目前的研究來看,對于膝關(guān)節(jié)內(nèi)側(cè)間室重度OA選擇何種關(guān)節(jié)置換術(shù)式在學(xué)術(shù)界仍然存在一定的爭議。為此,本項(xiàng)研究分析比較活動平臺UKA和TKA兩種術(shù)式的效果差異,為臨床治療方式的選擇提供一定的指導(dǎo)和參考,現(xiàn)報(bào)告如下。
1 資料與方法
1.1 一般資料
選取2022年1月—2023年9月上海市第一人民醫(yī)院蚌埠醫(yī)院收治的50例膝關(guān)節(jié)內(nèi)側(cè)間室重度OA患者為研究對象。納入標(biāo)準(zhǔn):(1)影像學(xué)檢查示單側(cè)膝關(guān)節(jié)重度OA,即Kellgren-Lawrence(K-L)分級為Ⅲ、Ⅳ級,病變僅局限于內(nèi)側(cè)間室,而外側(cè)間室及髕股關(guān)節(jié)無累及;(2)術(shù)前檢查明確膝關(guān)節(jié)周圍韌帶結(jié)構(gòu)、功能正常;(3)膝關(guān)節(jié)活動度>90°,內(nèi)翻畸形<15°,屈曲畸形<15°;(4)經(jīng)過保守治療無效;(5)無手術(shù)禁忌證,身體耐受性良好。排除標(biāo)準(zhǔn):(1)感染性關(guān)節(jié)炎、類風(fēng)濕關(guān)節(jié)炎、痛風(fēng)性關(guān)節(jié)炎等炎癥性關(guān)節(jié)炎;(2)既往有膝關(guān)節(jié)周圍截骨術(shù);(3)基礎(chǔ)疾病嚴(yán)重、心肺等重要臟器功能極差而不能耐受手術(shù);(4)合并有嚴(yán)重的精神疾病無法配合治療。根據(jù)隨機(jī)數(shù)字表法將患者分為UKA組(n=25)和TKA組(n=25)?;颊呒凹覍僦椴⑼馐中g(shù)。本研究經(jīng)上海市第一人民醫(yī)院蚌埠醫(yī)院醫(yī)學(xué)倫理委員會批準(zhǔn)。
1.2 方法
UKA組采用活動平臺單髁假體系統(tǒng),將膝關(guān)節(jié)屈曲位放于專用托架上,取膝關(guān)節(jié)前內(nèi)側(cè)切口,使用手術(shù)刀逐層切開各層軟組織及關(guān)節(jié)囊,切除增生的滑膜組織,探查外側(cè)關(guān)節(jié)面及交叉韌帶良好,暴露內(nèi)側(cè)間室,切除內(nèi)側(cè)半月板,咬骨鉗咬除周緣骨贅,安裝脛骨髓外定位器和截骨板導(dǎo)向器進(jìn)行截骨,將截除的內(nèi)側(cè)脛骨平臺骨質(zhì)與模型對比,確認(rèn)脛骨平臺假體型號,手術(shù)拉鉤保護(hù)內(nèi)側(cè)副韌帶,測試墊片試模,確定墊片厚度,于股骨內(nèi)側(cè)髁外緣對準(zhǔn)髂前上棘進(jìn)行開孔,安裝股骨髓內(nèi)定位桿,固定股骨截骨導(dǎo)向器,行股骨遠(yuǎn)端截骨,測定屈伸間隙,安裝假體試模,脈沖沖洗器充分清洗骨面,骨水泥固定假體,放置襯墊,刮除關(guān)節(jié)內(nèi)多余的骨水泥,檢查膝關(guān)節(jié)穩(wěn)定性和松緊度滿意,反復(fù)沖洗創(chuàng)腔,放置引流管,縫合包扎固定。TKA組采用全膝關(guān)節(jié)假體系統(tǒng),作膝關(guān)節(jié)前正中切口,選擇髕骨旁內(nèi)側(cè)入路進(jìn)入,將膝關(guān)節(jié)屈曲,使用手術(shù)刀逐層切開各層軟組織及關(guān)節(jié)囊,切除膝關(guān)節(jié)周圍增生的滑膜組織及部分髕下脂肪墊,將髕骨向外側(cè)翻轉(zhuǎn),顯露出脛骨平臺及股骨內(nèi)、外側(cè)髁,切除內(nèi)、外側(cè)半月板,咬骨鉗咬除股骨遠(yuǎn)端明顯增生的骨贅,修整髕骨周圍骨贅,在股骨髁間窩正中偏內(nèi)側(cè)和后交叉韌帶前方開口,安裝髓內(nèi)定位桿行股骨遠(yuǎn)端截骨,安裝髓外定位桿進(jìn)行脛骨平臺截骨,安裝試模,沖洗截骨面,配合骨水泥安裝假體,清除多余的骨水泥,檢查膝關(guān)節(jié)穩(wěn)定性和松緊度,沖洗創(chuàng)腔后放置引流管,逐層縫合,包扎固定。
術(shù)后24 h引流量低于50 mL時(shí)拔除引流管,術(shù)后指導(dǎo)患者行膝關(guān)節(jié)功能鍛煉,術(shù)后復(fù)查X線,指導(dǎo)患者逐步負(fù)重行走,術(shù)后2周視傷口愈合情況拆除縫線。
1.3 觀察指標(biāo)與評價(jià)標(biāo)準(zhǔn)
(1)手術(shù)指標(biāo):比較兩組手術(shù)時(shí)間、切口長度、術(shù)中出血量、住院時(shí)間、術(shù)后膝關(guān)節(jié)屈曲至90°所需時(shí)間。(2)生活質(zhì)量指標(biāo):術(shù)前及術(shù)后6個(gè)月采用視覺模擬評分法(VAS)評價(jià)關(guān)節(jié)疼痛程度;西安大略和麥克馬斯特大學(xué)骨關(guān)節(jié)炎指數(shù)(WOMAC)反映關(guān)節(jié)疼痛、僵硬和功能情況;美國特種外科醫(yī)院(HSS)評分評價(jià)關(guān)節(jié)功能情況,關(guān)節(jié)活動度(ROM)測定關(guān)節(jié)活動程度;關(guān)節(jié)遺忘評分(FJS)評價(jià)術(shù)后人工關(guān)節(jié)遺忘程度。(3)影像學(xué)指標(biāo):術(shù)前及術(shù)后6個(gè)月時(shí)拍攝膝關(guān)節(jié)正側(cè)位及雙下肢全長正位X線,測量脛骨近端內(nèi)側(cè)角(mMPTA)、髖-膝-踝角(HKA)、脛骨平臺后傾角(PTS)、股脛角(FTA)。(4)手術(shù)相關(guān)并發(fā)癥發(fā)生情況。
1.4 統(tǒng)計(jì)學(xué)處理
使用SPSS 22.0軟件分析,計(jì)數(shù)資料以率(%)表示,采用字2檢驗(yàn);計(jì)量資料以(x±s)表示,組間比較行獨(dú)立樣本t檢驗(yàn),組內(nèi)比較行配對t檢驗(yàn)。以P<0.05為差異有統(tǒng)計(jì)學(xué)意義。
2 結(jié)果
2.1 兩組基線資料比較
UKA組男9例,女16例;年齡55~80歲,平均(67.44±7.47)歲;K-L分級:Ⅲ級12例,Ⅳ級13例。TKA組男11例,女14例;年齡50~83歲,平均(64.16±8.60)歲;K-L分級:Ⅲ級8例,Ⅳ級17例。兩組基線資料比較,差異均無統(tǒng)計(jì)學(xué)意義(P>0.05),具有可比性。
2.2 兩組手術(shù)指標(biāo)比較
兩組患者均成功完成手術(shù)。與TKA組相比,UKA組切口小,術(shù)中出血量少,手術(shù)時(shí)間、住院時(shí)間及術(shù)后膝關(guān)節(jié)屈曲至90°所需時(shí)間均短,差異均有統(tǒng)計(jì)學(xué)意義(P<0.05)。見表1。
2.3 兩組生活質(zhì)量指標(biāo)比較
術(shù)前,兩組VAS評分、WOMAC評分、HSS評分、ROM比較,差異均無統(tǒng)計(jì)學(xué)意義(P>0.05);術(shù)后6個(gè)月,兩組VAS評分、WOMAC評分、HSS評分、ROM較術(shù)前均有所改善,差異均有統(tǒng)計(jì)學(xué)意義(P<0.05);UKA組VAS評分、ROM、FJS均優(yōu)于TKA組,差異均有統(tǒng)計(jì)學(xué)意義(P<0.05);兩組WOMAC評分、HSS評分比較,差異均無統(tǒng)計(jì)學(xué)意義(P>0.05)。見表2。
2.4 兩組影像學(xué)指標(biāo)比較
術(shù)前及術(shù)后6個(gè)月時(shí),兩組mMPTA、HKA、PTS、FTA比較,差異均無統(tǒng)計(jì)學(xué)意義(P>0.05);術(shù)后6個(gè)月時(shí),兩組mMPTA、HKA、PTS、FTA較術(shù)前均有所改善,差異均有統(tǒng)計(jì)學(xué)意義(P<0.05)。見表3。
2.5 兩組手術(shù)相關(guān)并發(fā)癥發(fā)生情況
兩組隨訪期間均未出現(xiàn)手術(shù)相關(guān)并發(fā)癥。
3 討論
研究表明,膝關(guān)節(jié)OA主要影響膝關(guān)節(jié)的內(nèi)側(cè)間室、外側(cè)間室及髕股關(guān)節(jié),其中內(nèi)側(cè)間室是膝關(guān)節(jié)OA最常累及的間室。目前臨床上針對膝關(guān)節(jié)OA的治療方式主要分為非手術(shù)治療(教育管理、鍛煉減重、物理治療、藥物治療)和手術(shù)治療,而手術(shù)治療可分為關(guān)節(jié)鏡清理術(shù)、截骨術(shù)等,但以上幾種手術(shù)方式無法從根本上解決疾病繼續(xù)退變的進(jìn)展。
目前在臨床上活動平臺UKA和TKA是治療膝關(guān)節(jié)內(nèi)側(cè)間室重度OA最常見的手術(shù)方式,但何為最佳的治療方式在學(xué)者中一直存在著爭議[8-9]。TKA是將膝關(guān)節(jié)的兩間室或三間室進(jìn)行置換來達(dá)到徹底修復(fù)膝關(guān)節(jié)病變的目的,其適應(yīng)證較為廣泛,經(jīng)過多年的發(fā)展,技術(shù)已非常成熟,已經(jīng)獲得眾多臨床醫(yī)生和患者的認(rèn)可,但這一手術(shù)方式對于僅累及內(nèi)側(cè)間室的重度OA,會破壞正常的間室、半月板及前后交叉韌帶組織而引起過度的損傷[10-11]。而活動平臺UKA作為相對微創(chuàng)的治療方式,直接置換退變嚴(yán)重的內(nèi)側(cè)間室,保留對側(cè)間室,截除病變軟骨,清除增生骨贅,截骨量相對較少,使得大部分的正常組織結(jié)構(gòu)及本體感受器得以最大程度的保留,給患者造成的損傷更小,縮短了術(shù)后恢復(fù)時(shí)間,更能發(fā)揮人體的生物力學(xué)優(yōu)勢,促進(jìn)膝關(guān)節(jié)的穩(wěn)定[12-13]。本研究顯示,UKA組手術(shù)時(shí)間、切口長度等手術(shù)評價(jià)指標(biāo)均優(yōu)于TKA組,所以,活動平臺UKA治療膝關(guān)節(jié)內(nèi)側(cè)間室重度OA可顯著減小手術(shù)創(chuàng)傷,康復(fù)周期更短,符合快速康復(fù)外科理念,安全性較為可靠,這與既往學(xué)者的研究相符[14-15]。膝關(guān)節(jié)是人體重要的負(fù)重關(guān)節(jié),改善膝關(guān)節(jié)功能,恢復(fù)行走能力,對提高患者的生活質(zhì)量具有極為重要意義。在此研究中可以發(fā)現(xiàn)UKA組術(shù)后VAS評分、ROM均明顯優(yōu)于TKA組。因此,UKA治療膝關(guān)節(jié)內(nèi)側(cè)間室重度OA可更有效促進(jìn)膝關(guān)節(jié)的疼痛減輕和功能改善[16]。FJS是用來評價(jià)對于人工關(guān)節(jié)的遺忘程度,目前在關(guān)節(jié)置換術(shù)后手術(shù)效果及生活質(zhì)量評價(jià)方面已獲得廣泛應(yīng)用[17]。在本項(xiàng)對比研究中UKA組FJS明顯高于TKA組,這充分體現(xiàn)出活動平臺UKA術(shù)式所具有的優(yōu)勢。另外,此次研究表明,術(shù)后6個(gè)月,兩組mMPTA、HKA、PTS、FTA較術(shù)前均明顯改善,術(shù)前及術(shù)后6個(gè)月,兩組組間比較,差異均無統(tǒng)計(jì)學(xué)意義(P>0.05),客觀說明兩種術(shù)式對恢復(fù)下肢力線的作用相當(dāng)[18]。手術(shù)并發(fā)癥是臨床醫(yī)生需要密切關(guān)注和重視的問題,若出現(xiàn)手術(shù)并發(fā)癥會不同程度上造成患者機(jī)體創(chuàng)傷的增加、經(jīng)濟(jì)負(fù)擔(dān)的加重和診療滿意度的降低,伴隨著各種手術(shù)技術(shù)的不斷進(jìn)步和完善,手術(shù)并發(fā)癥的發(fā)生率呈現(xiàn)著降低的趨勢[19-21]。在此次研究中,兩組隨訪期間均未出現(xiàn)手術(shù)相關(guān)并發(fā)癥,這也充分證實(shí)了這兩種術(shù)式的安全性和可靠性。
需要特別注意,與TKA相比,活動平臺UKA的手術(shù)適應(yīng)證相對較窄,術(shù)前需充分評估影像學(xué)資料,嚴(yán)格把握手術(shù)適應(yīng)證,對于取得良好的手術(shù)療效頗為關(guān)鍵。若術(shù)中發(fā)現(xiàn)交叉韌帶損傷、外側(cè)間室退變明顯,應(yīng)果斷更改手術(shù)方式,以降低對關(guān)節(jié)術(shù)后功能恢復(fù)及遠(yuǎn)期假體生存率的影響,且活動平臺UKA手術(shù)過程中膝關(guān)節(jié)交叉韌帶的完整保留要求術(shù)者具有更細(xì)致的精度和更高的操作技術(shù)。另外,本研究仍存在部分不足之處,包括:(1)臨床資料有限,樣本量偏少,存在選擇偏倚可能,需進(jìn)一步擴(kuò)大樣本量;(2)研究時(shí)長較短,需進(jìn)一步延長隨訪時(shí)間,以探討兩種術(shù)式遠(yuǎn)期療效差異。
綜上所述,對于膝關(guān)節(jié)內(nèi)側(cè)間室重度OA,活動平臺UKA較TKA手術(shù)創(chuàng)傷更小、疼痛緩解更明顯、關(guān)節(jié)功能恢復(fù)更佳,可取得滿意的臨床效果。
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(收稿日期:2024-06-17) (本文編輯:白雅茹)
*基金項(xiàng)目:安徽省高校自然科學(xué)研究項(xiàng)目重點(diǎn)項(xiàng)目(KJ2021A0756)
①上海市第一人民醫(yī)院蚌埠醫(yī)院(蚌埠醫(yī)科大學(xué)第二附屬醫(yī)院)骨科 安徽 蚌埠 233000
通信作者:袁伶俐