Total hip arthroplasty after hip joint ankylosis

Background

Back pain and knee pain are typical secondary degeneration symptoms after hip ankylosis. Take down of hip ankylosis and implantation of a total hip arthroplasty (THA) is believed to be a promising treatment option.

Methods

A total of 22 hip ankylosis patients [15 men, mean age 53.7 years (range 30–72 years); 7 women, mean age 50.8 years (range 42–61 years)] underwent THA during 1980–2000 after spontaneous (n = 10) or surgical (n = 12) fusion of the hip joint. The mean duration of ankylosis prior to THA was 32.5 years (range 2–61 years).

Results

At the mean follow-up of 13.2 years (range 2–19 years), the Harris hip score averaged 84.9 points (range 70.1–99.0 points). All patients (100%) confirmed that they would undergo conversion surgery again. Aseptic loosening of two stems (one cemented, one cementless; 9.5%) and two deep infections (9.5%) required revision surgery.

Conclusions

THA is a promising option for treatment of secondary long-term hip ankylosis sequelae. A conversion operation after spontaneous ankylosis provides better functional outcome than after surgical fusion. However, full function with complete pain relief and a negative Trendelenburg sign might be not attainable in all cases.     

Results and experiences of conversion of hip arthrodesis

INTRODUCTION: With the predictably good outcome of total hip arthroplasty today (THA), hip arthrodesis currently has limited indications. Over the long term, however, most patients develop secondary degenerative arthritis in the spine, contralateral hip, and ipsilateral knee due to overloading. The deteriorating condition of these joints eventually causes the onset of pain, which often requires conversion of a fused hip to a THA. The results and experiences of conversions of a hip arthrodesis into a THA are reported. INTRODUCTION: Between 1 January 1985 and 31 December 2001 conversion of a previously performed arthrodesis of the hip to THA was carried out in a total of 45 patients; 34 patients could be followed up after the conversion to THA after a mean of 77.5 months (min.: 24, max.: 208). The primary indications for the conversion were low back pain (n=21) and ipsilateral knee pain (n=13). RESULTS: The mean age at the time of THA was 75.3 years (min.: 32, max.: 74). The mean time interval between the arthrodesis and the conversion to THA was 30.4 years (min.: 5, max.: 66). Of 34 hips, 29 (85%) were either pain free or had minimal pain. Complications included one persisting sciatic nerve palsy, two superficial infections, two periprosthetic fractures, and two heterotopic ossifications IV degrees with one recurrence of ankylosis and one marked reduction of motion. Revision arthroplasty was performed in four hips. Postoperatively 7 patients showed no limping, 11 showed a slight limp, and 17 a pronounced limp. Recurrent dislocations occurred in one patient. CONCLUSION: We conclude that this operation can lead to satisfactory results even after a long duration of the arthrodesis. There is a high rate of complications after conversion of a hip arthrodesis to a total hip arthroplasty. These issues must be carefully considered and discussed with the patient before any conversion procedure.     

Total hip arthroplasty for bilaterally ankylosed hips

The purpose of this study was to evaluate the results of bilateral total hip arthroplasties (THAs) with special regard to angle of cup position in patients with bilaterally ankylosed hips. Twenty-four ankylosed hips were converted to THAs in 12 patients. Their mean age was 36 years and they were followed up for more than 3 years (average, 11 years). The mean Harris hip score increased from 55.4 to 82.3 points. Osteolysis and loosening were found in 3 and 2 hips, respectively. Eleven cups of 24 hips (46%) were outside the safe ranges of Lewinnek. Overall outcome after bilateral conversion of bilaterally ankylosed hips to THA was favorable, but the fused position of the contralateral limb had the tendency to define the direction of the malposition of the acetabular cup.     

髋关节骨性强直或融合后的全髋关节置换术

目的　探讨髋关节骨性强直或融合后行全髋关节置换术的可行性。方法　对 10例髋关节骨性强直或融合患者行全髋关节置换术的临床疗效及手术相关问题进行分析。结果　随访 6～ 30个月 (平均 18个月 ) ,10例 12个髋关节活动度术前为 0° ,术后总的活动度平均 16 3° ,屈髋平均 89°;Har ris评分术前平均 15 6分 ,术后平均 89分。术后髋痛消失 ,膝痛、下腰痛明显改善 ,步态基本恢复正常 ,8例重返工作岗位。结论　髋关节骨性强直或融合后如果发生严重的下腰痛、对侧髋关节、同侧膝关节疼痛或髋关节融合在非功能位上 ,髋关节周围软组织条件好 ,外展肌基本正常 ,应行全髋关节置换术     

Conversion of ankylosed hips to total hip arthroplasty

Between 1970 and 1979, 17 patients underwent conversion of ankylosed hip to total hip arthroplasty. The patients' ages ranged from 38 to 82 years and the duration of fusion prior to conversion ranged from five to 60 years. The primary indication for conversion to total hip replacement in all patients was disabling pain in the low back, the ipsilateral knee, and the contralateral hip. The reason for ankylosis varied: five patients had previously undergone fusion for posttraumatic arthritis, two patients for tuberculous arthritis, six patients for osteoarthritis, one for a previous old slipped capital femoral epiphysis which had undergone spontaneous fusion after internal fixation, and two patients for ankylosing spondylitis. Relief of preoperative pain in the lower back was seen in 12 of 13 patients, knee pain was relieved in four out of four patients, and contralateral hip pain was relieved in seven out of 10 patients. Complications included heterotopic ossification, infection, perforation of the posterior shaft of the femur, and failure of trochanteric fixation with subsequent dislocation. Predictable pain relief from pain in the contralateral hip was less predictable and directly related to the degree of osteoarthritis in the contralateral hip. In these patients it is suggested that conversion of the fused hip to total hip arthroplasty be staged with total hip replacement in the contralateral hip as well. The end results were least satisfactory in patients with ankylosing spondylitis.     

Total hip arthroplasty using a combined anterior and posterior approach via a lateral incision in patients with ankylosed hips

Background

For most patients with severely ankylosed hips, traditional surgical approaches do not provide sufficient exposure during THAs. We report our experience with a combined anterior and posterior approach using a lateral incision for total hip arthroplasty (THA) in patients with severe, spontaneous bony hip ankylosis.

Methods

Between January 2004 and December 2008, patients with severe, spontaneous bony hip ankylosis underwent THA via a combined anterior and posterior approach using a lateral incision.

Results

We included 47 patients (76 hips) with a mean age of 53 (range 22–72) years in our study. All surgeries were successful, and no significant postoperative complications occurred. The mean operative duration was 1.5 (range 1.3–1.7) hours, and mean blood loss was 490 (range 450–580) mL. The mean duration of follow-up was 5.5 (range 2–11) years. Harris hip score improved from 53 to 88 points postoperatively, and the outcome was good to excellent in 88.37% of cases. Heterotopic ossification occurred in 6 hips, and infection, which resolved with antibiotics, occurred in 1 patient.

Conclusion

This combined anterior and posterior approach to THA using a lateral incision in patients with severe, spontaneous ankylosis provides very good exposure, protects the abduction unit and results in good to excellent postoperative recovery.     

全髋关节置换术治疗强直性脊柱炎髋关节强直

目的探讨全髋关节置换术治疗强直性脊柱炎髋关节强直的临床效果。方法对11例强直性脊柱炎髋关节强直患者（22髋）进行全髋关节置换术,术后行踝关节及足趾屈伸等功能锻练。结果术后髋关节活动度明显改善,屈曲畸形基本矫正。11例均获随访,时间2-6年。未出现关节脱位和假体松动。Harris评分由术前9-58（36±9.8）分提高到末次随访时64-94（81.2±10.6）分,优13髋,良6髋,中3髋。结论全髋关节置换术治疗强直性脊柱炎髋关节强直能显著改善髋关节功能,矫正髋关节畸形,近期疗效满意。     

Total hip arthroplasty in the ankylosed hip. A ten-year follow-up

Eighty total hip arthroplasties in seventy-four patients who had had either a spontaneous or a surgical ankylosis (arthrodesis) of the hip were evaluated at nine to fifteen years (average, 10.4 years) after the total hip replacement. There was only one failure in the twenty hips of the fifteen patients who had had a spontaneous ankylosis. In contrast, twenty (33 per cent) of the sixty hips of the sixty patients who had had a surgical ankylosis had complications that were associated with the arthroplasty. Of these twenty hips, mechanical loosening developed in eleven; infection, in eight; and recurring dislocation, in one. Failure of the total hip arthroplasty was more common (p less than 0.05) in the patients who had had a previous surgical attempt at arthrodesis and in the patients who were fifty years old or less at the time of the arthroplasty. The risk of failure was not related to the length of time that the hip had been ankylosed.     

全髋关节置换术治疗强直性脊柱炎致髋关节强直的疗效及康复锻炼的意义

目的 探讨全髋关节置换术治疗强直性脊柱炎致髋关节骨性强直的疗效及术后康复锻炼的意义.方法 1998年10月至2007年5月,对28例(46髋)强直性脊柱炎致髋关节骨性强直患者施行全髋关节置换术,男27例,女1例;年龄22～58岁,平均38.9岁;病程5～35年,平均17年2个月;髋关节屈曲强直7例(14髋),伸直强直21例(32髋).采用髋关节后外侧切口34髋,改良前外侧与外侧联合切口12髋;其中应用全生物型假体40髋,混合型假体6髋.术后24 h即开始进行系统性康复锻炼.对手术前、后患者Harris评分、VAS评分、髋关节总活动度及患者整体功能改善情况进行比较.结果 所有患者均获得随访,随访时间10～64个月,平均38.2个月,随访期间未发生坐骨神经或股神经麻痹、皮肤压疮、肺部感染、关节松动等并发症.1例患者术后2周出现髋关节脱位,经闭合复位治愈.8髋出现异位骨化,其中Brooker Ⅰ级6髋,Ⅱ级2髋.7例髋关节屈曲强直患者,屈曲角度由术前34.3°±16.3°改善为术后4.2°±3.3±.Harris评分由术前平均(28.3±10.3)分提高至术后平均(82.7±7.6)分.VAS评分:术前(3.5±1.4)分,术后(3.8±1.8)分.髋关节总活动度由术前平均15.6°±9.3°改善至术后133.7°±17.6°.术前28例患者生活均不能自理;术后1年,除3例患者行走时仍需借用单拐、生活需他人帮助外,其余25例患者生活均可自理,并可从事家务或轻体力劳动.结论 全髋关节置换术是治疗强直性脊柱炎晚期严重髋关节病变的一种有效方法,早期系统康复锻炼有助于关节功能的恢复.     

Surgical challenges in complex primary total hip arthroplasty

Complex primary total hip arthroplasty (THA) is defined as primary THA in patients with compromised bony or soft-tissue states, including but not limited to dysplastic hip, ankylosed hip, prior hip fracture, protrusio acetabuli, certain neuromuscular conditions, skeletal dysplasia, and previous bony procedures about the hip. Intraoperatively, provisions must be made for the possible use of modular implants and/or bone grafts. In this article, we review the principles of preoperative, intraoperative, and postoperative management of patients requiring a complex primary THA.     

Surgical challenges in complex primary total hip arthroplasty.

Complex primary total hip arthroplasty (THA) is defined as primary THA in patients with compromised bony or soft-tissue states, including but not limited to dysplastic hip, ankylosed hip, prior hip fracture, protrusio acetabuli, certain neuromuscular conditions, skeletal dysplasia, and previous bony procedures about the hip. Intraoperatively, provisions must be made for the possible use of modular implants and/or bone grafts. In this article, we review the principles of preoperative, intraoperative, and postoperative management of patients requiring a complex primary THA.     

Patient-reported outcomes after total hip and knee arthroplasty: comparison of midterm results

The aim of this study was to compare the midterm functional outcomes of total knee arthroplasty (TKA) and total hip arthroplasty (THA). A cross-sectional postal audit survey of all consecutive patients who had a primary joint replacement at one orthopedic center 5 to 8 years ago was conducted. Participants completed an Oxford hip score or Oxford knee score, which are self-report measures of functional ability. Completed questionnaires were returned from 1112 THA patients and 613 TKA patients, giving a response rate of 72%. The median Oxford knee score of 26 was significantly worse than the median Oxford hip score of 19 (P < .001). In conclusion, TKA patients experience a significantly poorer functional outcome than THA patients 5 to 8 years postoperatively.     

Total knee arthroplasty in patients with prior ipsilateral hip fusion.

Sixteen total knee arthroplasties performed between 1977 and 1985 in 13 patients with prior ipsilateral hip arthrodesis or ankylosis were studied to determine the preferred sequence and long-term follow-up of procedures in this clinical setting. Twelve of 16 underwent fusion takedown and total hip arthroplasty prior to knee replacement. The average age at total knee arthroplasty was 52.7 years and the average time from hip fusion to total knee arthroplasty was 36.3 years. Mean follow-up after total knee arthroplasty was 5.5 years (range, 2.3 to 10 years). The Hospital for Special Surgery knee score increased from a mean of 31.8 preoperatively to 72.2 after surgery. In patients who had conversion of the hip fusion prior to knee replacement, knee scores were 28 before and 72.5 after both procedures. Patients who retained their hip fusion had mean scores of 43.5 and 72.1, respectively. None of the knees has been removed and 14 of 16 had no pain at last follow-up. One had mild pain and one had moderate pain attributed to pes anserine bursitis. Although the numbers are small, this experience reveals that takedown of the fusion with total hip arthroplasty is an effective technique before performing the knee replacement. Though successful in some instances, the experience is too small to show that if hip fusion is in good position, knee replacement without fusion takedown is acceptable.     

Cementless bilateral synchronous total hip arthroplasty in ankylosing spondylitis with hip ankylosis

Purpose

This study was a retrospective analysis of early and mid-term clinical effects and perioperative management of cementless bilateral synchronous total hip arthroplasty (THA) in patients with ankylosing spondylitis (AS) with bilateral hip ankylosis.

Methods

Fifteen AS patients (30 hips) with bilateral hip ankylosis were managed with cementless bilateral synchronous THA. Surgical outcome was evaluated using the visual analogue scale (VAS), the range of motion and the Harris score.

Results

The mean follow-up period was 29.3 months. At the last follow-up visit, the VAS score decreased from 7.53?±?0.99 before the operation to 2.40?±?0.91. The Harris score increased from 24.8?±?7.42 before the operation to 83.8?±?4.61. The total range of motion increased from 78.73?±?14.53 before the operation to 209.73?±?16.19 after the operation. After the operation, there was one case of early hip dislocation, one case of femoral nerve stretch injury and one case of superficial incision infection. There were no cases of deep venous thrombosis. X-ray examinations did not show prosthetic loosening or displacement.

Conclusion

AS patients with bilateral hip ankylosis can be treated with cementless bilateral synchronous THA, which could greatly improve hip joint function without significant complications. The clinical effects proved to be satisfactory.     

Bony ankylosis following total knee arthroplasty: a case report

While bony ankylosis secondary to heterotopic ossification (HO) following total hip arthroplasty (THA) is well known to produce disability in the hip, much less has been written about the development of heterotopic ossification about the knee after total knee arthroplasty (TKA). Additionally, to our knowledge, there has been no published case of complete bony ankylosis of the knee following total knee arthroplasty. We present such a case in a 53 year old male who underwent a primary total knee arthroplasty after resolution of septic arthritis.     

Total hip arthroplasty in above-knee amputees: a case report

There are previous case reports in the literature that describe total knee and total hip arthroplasty (THA) in below-knee amputees, but we could find no case reports on above-knee amputees (AKAs) who have severe osteoarthritis of the hip. We present a case involving an AKA who developed severe osteoarthritis of the ipsilateral hip. Out patient underwent THA with a satisfactory postoperative outcome. Technical considerations for AKAs undergoing THA are also reviewed.     

Total hip arthroplasty for the treatment of ankylosed hips : a five to twenty-one-year follow-up study.

BACKGROUND: The purpose of the present retrospective study was to report the long-term results of total hip arthroplasty following a hip fusion. Special attention was paid to the resulting function of both the involved joint and the neighboring joints, as pain in the lower back or knee was the usual indication for conversion. The factors that were likely to influence the functional outcome were analyzed. METHODS: Forty-five consecutive total hip arthroplasties were performed in forty-five patients from 1969 through 1993. The mean age of the patients at the time of the operation was 55.8 years (range, twenty-eight to eighty years). Ankylosis of the hip had been spontaneous in twenty patients and postoperative in twenty-five patients. The mean duration of the ankylosis had been thirty-six years (range, three to sixty-five years). The mean duration of follow-up was 8.5 years (range, five to twenty-one years). No patient was lost to follow-up. RESULTS: The mean hip score, according to the scale of Merle d'Aubigné, was 16.5 1.5 points at the latest follow-up evaluation. Hip function was considered to be satisfactory for forty-one (91%) of the forty-five patients. The definitive score for walking ability was not achieved by the one-year evaluation; it improved notably for two to three years and then it remained stable. At the time of the latest follow-up, the mean arc of flexion was 88 degrees (range, 30 degrees to 130 degrees ). Forty-three (96%) of the forty-five patients had no pain in the involved joint. The only factor that was predictive of the final functional result with regard to walking ability was the intraoperative status of the gluteal muscles. Most patients had effective pain relief in the neighboring joints. The cumulative survival rate at eight years, with revision as the end point, was 96.7% (95% confidence interval, 90.2% to 100%). CONCLUSIONS: The long-term effectiveness of total hip arthroplasty for the treatment of an ankylosed hip was clearly demonstrated in both the involved and the neighboring joints in the present study. However, the preoperative and intraoperative status of the gluteal muscles should be carefully evaluated when this procedure is being considered, as this was the only factor that was predictive of the final walking ability.     

Total hip arthroplasty in ankylosing spondylitis: an analysis of 181 hips

The results of cemented total hip arthroplasty (THA) in patients with ankylosing spondylitis were studied to determine the utility of THA for these patients. A total of 103 patients with ankylosing spondylitis underwent 181 THAs; 72 patients (69.9%) had bilateral surgery. The mean follow-up was 10.3 years. The mean age of patients at surgery was 47 years. Before surgery, 42 hips (23.2%) were ankylosed. Revision surgery was carried out in 25 hips (13.8%). Heterotopic ossification was present in 21 hips (11.6%); however, no patients had functional impairment or reankylosis. At final follow-up examination, 173 hips (96%) had an excellent (low) pain score, and 53 hips had a normal or near-normal function score (29.2%). The probability of survival of the implant was 71% at 27 years. THA provides long-term improvement in hip function for patients with ankylosing spondylitis.     

Conversion total hip arthroplasty: Primary or revision total hip arthroplasty

Total hip arthroplasty (THA) is an increasingly common procedure among elderly individuals. Although conversion THA is currently bundled in a diagnosis related group (DRG) with primary THA, there is a lack of literature supporting this classification and it has yet to be identified whether conversion THA better resembles primary or revision THA. This editorial analyzed the intraoperative and postoperative factors and functional outcomes following conversion THA, primary THA, and revision THA to understand whether the characteristics of conversion THA resemble one procedure or the other, or are possibly somewhere in between. The analysis revealed that conversion THA requires more resources both intraoperatively and postoperatively than primary THA. Furthermore, patients undergoing conversion THA present with poorer functional outcomes in the long run. Patients undergoing conversion THA better resemble revision THA patients than primary THA patients. As such, patients undergoing conversion THA should not be likened to patients undergoing primary THA when determining risk stratification and reimbursement rates. Conversion THA procedures should be planned accordingly with proper anticipation of the greater needs both in the operating room, and for in-patient and follow-up care. We suggest that conversion THA be reclassified in the same DRG with revision THA as opposed to primary THA as a step towards better allocation of healthcare resources for conversion hip arthroplasties.     

Total hip replacement in patients with ankylosing spondylitis with involvement of the hip.

Twenty-three patients with ankylosing spondylitis underwent thirty-four total hip arthroplasties with an average follow-up of 42.5 months. The over-all results were rated good in all but two patients. Significant benefit was obtained in posture and function so that these patients could be gainfully employed. Improvement in the sum total range of motion was 96.1 degrees in patients with bone ankylosis and 150 degrees in those with fibrous ankylosis. The preoperative sum total range of motion was maintained or improved in hips with a painful arc of motion. Most of the limited motion in patients with ankylosed hips was due to myositis ossificans.