人工全髋与股骨头置换术并发异位骨化的比较

本文报告人工全髋关节置换术与人工股骨头置换术164例,术后发生异位骨化39例。全髋关节置换术的异位骨化率为40％,人工股骨头置换术的异位骨化率为18.5％。异位骨化均按Brooker分类法分类,二种不同术式的异位骨化率有显著性差异（P<0.05）。作者就异位骨化的形成、异位骨化率在二种术式之间的差异进行了讨论,并提出了异位骨化对疗效的影响及其与术式选择之间的关系。     

人工全髋关节置换术后异位骨化

作者报道６７例人工全髋关节置换术（ＴＨＡ）后异位骨化，发病率２４．５％，其中Ｂｒｏｏｋｅｒ分级，Ⅰ级２１例，Ⅱ级１８例，Ⅲ级１７例，Ⅳ级１１例。ＴＨＡ后异位骨化与全身（性别，髋关节疾病及术后解热镇痛药）和局部（骸关节手术史，大转子截骨，手术入路，麻醉方法及软组织创伤）因素密切相关。作者认为对于男性，增生性骨性关节炎和强直性脊柱炎等高危患者，ＴＨＡ应避免局麻和大转子截骨，术后采用解热镇痛药和放疗进行预防和治疗。     

骨性强直的髋关节转换人工全髋关节置换术

目的评估人工全髋关节置换术(totalhiparthroplasty,THA)治疗髋关节骨性强直的效果。方法自1987年8月~1998年2月,36例(38髋)行转换THA,平均术前融合时间20年1个月;平均随访8年11个月。结果Harris评分由(68·7±7·2)分提高到(87±6·1)分;髋关节总活动度增加180·7°±14·5°。关节疼痛缓解率为93·3%;平均肢体短缩由4·1cm降到1·6cm;人工关节存活率为86·8%。X线片示髋臼骨溶解6例,髋臼杯松动2例,股骨骨溶解4例,股骨柄松动1例。结论骨性强直的髋关节转换THA,可以缓解周围关节疼痛、增加髋关节的活动度、改善双下肢不等长和矫正髋关节畸形,提高生活质量。髋关节功能与臀中肌力量的恢复直接关联。     

髋关节骨性强直畸形全髋置换术近期疗效分析

目的探讨采用全髋关节置换术治疗髋关节骨性强直畸形的方法和近期疗效。方法2000年1月至2007年1月收治12例（14髋）髋关节骨性强直畸形患者，男10例（12髋），女2例（2髋）；年龄22—62岁，平均46岁；病程3—22年，平均15年；髋关节主动屈伸活动度术前0°-60°，平均30°；Harris评分术前为为28～53分，平均40．5分。采用髋关节后外侧切口行全髋关节置换术，生物型假体植入。结果全部获得随访，随访时间为18～60个月，平均48个月。髋关节功能均有明显改善，Harris评分提高至术后69～92分，平均83．6分。髋关节屈曲畸形矫正，术后髋痛消失，步态恢复基本正常，生活自理。结论全髋关节置换术是治疗髋关节骨性强直的一种有效方法，近期疗效满意。     

全髋关节置换术后严重异位骨化一例

1病例报告患者,男,70岁。因左髋疼痛伴活动受限4个月入院。患者5年前在外院因左股骨颈骨折行人工全髋关节置换术,术后左髋运动与感觉功能恢复良好,无疼痛。4个月前无明显诱因下出现左髋疼痛,初与活动左髋有关,逐渐加重,休息时也有疼痛,左髋活动明显受限,行走、站立均感困难。体     

强直髋的全髋关节置换术

目的 报告关节强直髋患者行全髋关节置换术的长期结果。方法 对45例强直髋行全髋关节置换术。手术时平均年龄为55.8岁(28~80岁)。20例系自发性髋关节强直,25例为术后强直。关节强直的平均时间36年(3~65年),全部病例均获随访,平均随访6.5年。结果根据Merled Aubigne评分标准在最近的随访评价中,髋关节平均分数是165±1.5分。髋关节功能45例中41例疗效满意。在最近的随访中平均屈曲范围是88°(30°~130°)。大多数病人在邻近关节有减轻疼痛的效果。积累8年的生存率,随访最后分数的修定是96.7％(95％可信度,间隔90.2％~100％)。结论作为治疗强直髋的手术方法,全髋关节置换的长期疗效在该关节和邻近关节的最近研究中获得证明。当考虑手术时,应仔细的评价术前和术中臀中肌的功能,这是预测最后行走能力的方法之一。     

人工全髋置换术疗效分析

作者对人工全髋置换术后１４５例患者进行随访，共１６０个髋。平均年龄５２．７±１１．７岁，平均随访时间５年９个月，总满意率为９３．４％。作者认为ＴＨＲ适应证取决于疾病种类和程度以及患者所面临的社会生活要求。松动和下沉是晚期主要的并发症。髓腔较大者，松动发生率为３２．５％，假体柄内翻时，松动率为３０％。     

Heterotopic Ossification After 2-Incision Total Hip Arthroplasty

We examined the incidence of heterotopic ossification (HO) in a consecutive series of total hip arthroplasties (THAs) performed with the so-called minimally invasive, 2-incision technique. Standard preoperative hip radiographs were used to grade the extent of degenerative arthritis, and comparable follow-up radiographs at 30 months after surgery were used to detect and classify HO formation. Of 121 patients, 32 (26.5%) developed HO, with the Brooker class distribution as follows: stage I, 16 patients; stage II, 9 patients; stage III, 6 patients; stage IV, 1 patient. In this study, HO formation after 2-incision THA occurred with nearly the same frequency as that reported in other studies after standard THA.     

全髋关节置换术后异位骨化的临床研究

目的探讨全髋关节置换术后异位骨化的发生率,以及假体类型和手术入路对异位骨化发生的影响。方法对245例(262髋)患者行全髋关节置换术,男115例,女130例;骨水泥型假体178髋,非骨水泥型假体84髋,采用改良直接外侧入路227髋,后外侧入路35髋。观察末次随访X线片假体周围异位骨化的范围,并按Brooker分型分为Ⅰ～Ⅳ型。结果全髋关节置换术后异位骨化的发生率为11.1%;男性和女性患者术后异位骨化的发生率分别为13.0%和10.8%,异位骨化在骨水泥型和非骨水泥型全髋关节置换术后的发生率分别为11.2%和10.7%,在后外侧入路和改良直接外侧入路的发生率分别为2.86%和12.3%,差异均无统计学意义(P0.05)。轻度(BrookerⅠ、Ⅱ型)和重度(BrookerⅢ、Ⅳ型)异位骨化的平均Harris评分分别为(90.47±3.76)和(81.35±2.34)分,差异有统计学意义(P0.01)。结论异位骨化是全髋关节置换术后常见的并发症之一,在不同性别间的发生率相近。采用不同的手术入路、不同类型的髋关节假体,术后异位骨化的发生率无明显差异。严重的异位骨化将限制术后髋关节的功能。     

混合型与生物型人工全髋关节置换术后并发异位骨化的比较

目的 研究使用混合型与生物型假体的全髋关节置换术(THA)术后异位骨化(H0)的情况.方法 回顾性研究自2004年1月～2010年1月行初次单侧人工THA患者,从中配对选取76对,配对的参数为年龄、性别、体重.A组患者行混合型人工THA,B组患者行生物型人工THA.HO诊断依据术后3个月和12个月的髋关节前后位X线片,按Brooker分级记录.结果 A组发生HO的例数为21例,总发生率27.63%,B组发生HO例数为30例,总发生率为39.47%,两者差异无统计学意义.结论 混合型与生物型人工THA术后HO的发生率没有明显差异.     

Incidence of Heterotopic Ossification in Direct Anterior Total Hip Arthroplasty: A Retrospective Radiographic Review

Heterotopic ossification (HO) is a complication following total hip arthroplasty (THA) with traditional approaches. The direct anterior approach (DAA) has become a popular approach for THA; however, no study has evaluated HO formation following DAA THA. We examined the incidence of HO in a consecutive series of THA using the DAA in two separate hospitals. Standard preoperative radiographs were examined to determine the type of degenerative arthritis, and follow-up radiographs of at least 6 months after surgery were evaluated for the presence and classification of HO. The overall incidence of HO after DAA THA in this study was 98/236, or 41.5%, which falls within the reported range from recent studies involving more traditional approaches to the hip.     

Heterotopic Ossification Prophylaxis After Total Hip Arthroplasty: Randomized Trial of 400 vs 700 cGy

Background

Heterotopic ossification (HO) is a known complication following total hip arthroplasty. Radiation is an effective prophylaxis, but an optimal protocol has yet to be determined. We performed a randomized, double-blinded clinical trial in high-risk patients to determine the efficacy of 400 vs 700 cGy doses of radiation.

Heterotopic Ossification Following Direct Anterior Total Hip Arthroplasty With and Without Postoperative Analgesic Nonsteroidal Anti-inflammatories

BackgroundHeterotopic ossification (HO) can result in poorer clinical outcomes following total hip arthroplasty (THA). Multiple modes of intervention have been evaluated for HO prevention, including the use of nonsteroidal anti-inflammatories. Additionally, multimodal pain management strategies including celecoxib have become more prominent. Therefore, this study aims to evaluate the influence of celecoxib as part of postoperative analgesia on the risk of developing HO following the direct anterior approach (DA) for THA.MethodsA retrospective query identified primary DA THAs performed by a single surgeon between 2013 and 2020. Patients were grouped according to those who received 3 weeks celecoxib upon discharge, and those who did not. Radiographs were used to categorize patients according to the Brooker classification system for HO. Preoperative and 2-week, 6-week, 3-month, and 1-year postoperative X-rays were evaluated.ResultsA total of 688 DA THAs were included, demonstrating a 9.6% (n = 66) incidence of HO with Brooker classification: 1: 5.7% (n = 39); 2: 2.6% (n = 18); 3: 1.2% (n = 8); and 4: 0.1% (n = 1). Patients who did not receive celecoxib had a 14.3% (52/364) rate of HO following THA (odds ratio 4.53, P < .001) vs only 4.3% (14/324) in the celecoxib group (odds ratio 0.22, P < .001). Overall, 9 patients (1.3%) went on to develop significant HO (Booker 3 or greater): 8 (2.2%) in the control group and 1 (0.3%) in the celecoxib group (P < .001).ConclusionOur findings suggest a significant reduction in the formation of HO following DA THA when using postoperative analgesic celecoxib as part of a multimodal pain protocol. Future prospective randomized studies are needed to identify ideal dosage, duration, and formulation to reduce the risk of HO while optimizing multimodal pain management.     

Heterotopic Ossification in Primary Total Hip Arthroplasty Using the Direct Anterior vs Direct Lateral Approach

Background

The formation and severity of heterotopic ossification (HO) may be influenced by type of surgical approach. Our hypothesis was that because of differences in soft tissue dissection, differences exist in HO formation in primary total hip arthroplasty using direct anterior (DA) vs direct lateral (DL) approach.

Heterotopic Bone Formation Following Resurfacing Total Hip Arthroplasty

Heterotopic bone (HO), a rare association with total hip arthroplasty (THA), has recently been shown to be more of a problem with resurfacing hip arthroplasty (RHA). It has been speculated to be the result of greater soft tissue dissection required for this procedure. HO most commonly develops in males and patients with bilateral disease. To better understand if this problem does occur in RHA, groups of patients with RHA on one side and conventional THA on the other were evaluated. We retrospectively identified 45 patients that had RHA on one side and conventional cemented THA on the other. Follow-up has been up to 25 years. HO was graded at every clinical visit using the Brooker Classification. In the RHA group, there were 32 hips without evidence of HO, ten with grade 1, and three with grades 2 or 3. In the THA group, there were 36 hips without any HO, eight with grade 1, and one with grade 2. There was no statistical difference between either types of hip arthroplasty in HO formation overall or in the development of more severe grades. Motion was not significantly affected with the more severe grades. Our data obtained from a bilateral patient model suggests that RHA does not predispose to a greater development of HO. In doing a RHA, one should be aware that there might be an increased likelihood of HO in males with bilateral disease.