Comparative Analysis of Two Cementless Stems in Total Hip Arthroplasties in Patients with Osteonecrosis of Femoral Head - Summit<sup>®</sup> Stem and Bencox<sup>®</sup> Stem -

Lim, Young Wook; Lee, Kee Haeng; Bae, Sung Ho; Kwon, Soon Yong

doi:10.5371/jkhs.2012.24.1.25

Cited by 4 publications

(12 citation statements)

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“…We believe that this may be due to the more flexible titanium alloy, the lack of tight distal canal fill, and the more proximal metadiaphyseal loading of the COREN stem. In the present study, no osteolysis was observed around stem during follow-up, which was comparable to the findings of other uncemented implants with ceramic-on-ceramic bearing 34) . In addition, distal cortical hypertrophy was observed in no cases.…”

Section: Discussionsupporting

confidence: 79%

“…In addition, distal cortical hypertrophy was observed in no cases. The wedge-shaped tapered design of the COREN stem might reduce severe stress shielding and radiographic distal cortical hypertrophy although in previous studies, it has been found that uncemented implants had tight stem fits, which were regarded as a prerequisite for long-term survival [33][34][35] . However, trochanteric fractures related to stress shielding and osteolysis have been reported in up to 22% of cases treated using anatomic medullary locking uncemented components 33) .…”

Section: Discussionmentioning

confidence: 99%

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Minimum Seven-year Follow-up of Cementless Total Hip Arthroplasty with the COREN Hip System

et al. 2013

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� Purpose:We previously reported results of a mean 3.2-year follow-up of the COREN hip system, which is the first total hip prosthesis developed in Korea. The aim of this prospective study was to update the previous report with regard to the hip function and radiographic implant performance. Materials and Methods: Between 2003 and 2004, a consecutive series of 68 primary, cementless, total hip prostheses (COREN) were implanted in 57 patients(68 hips) and followed up for a minimum of 7 years. Sixtythree of the 68 hips were available for clinical scoring and radiographic analysis. Results: The mean Harris hip and WOMAC scores were improved from 48.1 and 54.7, preoperatively, to 96.4 and 22.1 at the final follow-up. The mean patient activity increased from 3.1, preoperatively, to 8.2 at the final follow-up. All hips showed stable bony ingrowth on the radiographs. No hips showed evidence of osteolysis or prosthesis loosening, and no revision was required during the follow-up. A Periprosthetic fracture (Vancouver type B1) was encountered in one hip 4.7 years after surgery, which was treated by reoperation. Conclusion: This study shows that the COREN hip system produces excellent mid-term results in cementless hip arthroplasty.

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Section: Discussionsupporting

confidence: 79%

Section: Discussionmentioning

confidence: 99%

Minimum Seven-year Follow-up of Cementless Total Hip Arthroplasty with the COREN Hip System

et al. 2013

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“…Other studies have reported similar results15171819). In contrast, early postoperative subsidence of the stem has been reported in many studies of the cementless Spotorno stem (CLS stem; Zimmer, Warsaw, IN, USA), whose design is similar to that of the COREN prosthesis202122).…”

Section: Discussionmentioning

confidence: 60%

“…Most studies171819) that used the COREN stems reported a very low incidence of thigh pain, similar to studies that used the CLS stems, which have similar design and surface treatment2021).…”

Section: Discussionmentioning

confidence: 75%

Cementless Total Hip Arthroplasty Using the COREN Hip System: A Minimum Five-Year Follow-up Study

et al. 2018

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PurposeThis study presents the clinical and radiological outcomes of cementless total hip arthroplasty using the COREN hip system after a minimum duration of follow-up of 5 years.Materials and MethodsWe evaluated the results of a consecutive series of the first 200 primary total hip arthroplasties that had been performed in our hospital in 169 patients between February 2007 and April 2011. Six patients (6 hips) had died within 5 years, and 12 patients (13 hips) had been lost to follow-up, leaving a total of 151 patients (181 hips) available for the study. All patients were evaluated clinically and radiologically with special attention to thigh pain, implant fixation, radiolucent line and osteolysis around implants.ResultsThe mean Harris hip score improved from 59.4 preoperatively to 97.2 postoperatively. No patient complained of thigh pain. All implants demonstrated radiographic evidence of stable fixation by bone ingrowth without any change in position. No implant was loose radiographically or was revised. Eleven hips (7.7%) had a radiolucent line around the femoral stem. Focal osteolytic area was detected in 3 cases (2.1%). An osteolytic lesion was stabilized in 1 case and further observation was needed in 2 cases in which the lesions were detected several years after surgery. Stress shielding was observed in 80.3% of cases (first degree, 35.9%; second degree, 44.4%); there were no cases of third or fourth degree stress shielding. One case was complicated by bacterial infection and repeated dislocation.ConclusionMid-term results of total hip arthroplasty using the COREN hip system are very encouraging clinically and radiologically.

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“…In comparison of the two implant types, superiority has yet to be determined, however, a choice made based on the objective of the surgery, the function of the joint, the quality of the bone, and the surgeon's experience will result in a good outcome. Till now, many studies of patient groups in Europe and the U.S. reported postoperative results of THA using the Summit® stems., whereas studies of Korean patients have been rather scarce 13 14) . Nevertheless, a previouslyreported study in Korean demonstrated that significant difference is observed between combined anteversion and theoretical combined anteversion among Asians 3) .…”

Section: Discussionmentioning

confidence: 99%

Primary Total Hip Arthroplasty Using Summit^® Stems in Korean: Minimum Four-year Follow-up

2017

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PurposeThe aim of this study was to assess the mid-term results of primary cementless total hip arthroplasty (THA) using Summit® stems.Materials and MethodsOne hundred twenty-eight arthroplasties in 121 patients who were performed THA from December 2004 to March 2013, were reviewed retrospectively a minimum of 4 years follow-up (mean age, 60.3 years; mean postoperative follow up period, 86.3 months). For a clinical evaluation, the Harris hip score (HHS) was used to assess outcome. Radiographic evaluation was done through spot welds, subsidence, stress shielding, canal filling.ResultsThe mean HHS was 69.8 points preoperatively, and it improved significantly to 96.3 points at the final follow-up. Postoperatively, 10 patients experienced thigh pain and 7 patients showed a moderate limping gait. There was not only early stem subsidence but there was no more subsidence at last follow up. One hundred eighteen hips showed radiographic signs of stem bone ingrowth, and 10 hips showed fibrous ingrowth at the last follow-up. Stress shielding occurred in 85 hips and third degree stress shielding was observed in 6 hips. Complication arose in 10 hips due to dislocation. Although revisions due to recurrent dislocations led to acetabular component revision in one hip, no revisions arose due to isolated aseptic loosening of the femoral component.ConclusionThe clinical and radiological mid-term results of primary THA using Summit® stems revealed solid initial fixation and bone ingrowth stable fixation. Considering the satisfactory clinical results, Summit® stems may be a good treatment option in Korean patients who were required hip arthroplasty

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Comparative Analysis of Two Cementless Stems in Total Hip Arthroplasties in Patients with Osteonecrosis of Femoral Head - Summit^® Stem and Bencox^® Stem -

Cited by 4 publications

References 20 publications

Minimum Seven-year Follow-up of Cementless Total Hip Arthroplasty with the COREN Hip System

Minimum Seven-year Follow-up of Cementless Total Hip Arthroplasty with the COREN Hip System

Cementless Total Hip Arthroplasty Using the COREN Hip System: A Minimum Five-Year Follow-up Study

Primary Total Hip Arthroplasty Using Summit^® Stems in Korean: Minimum Four-year Follow-up

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Comparative Analysis of Two Cementless Stems in Total Hip Arthroplasties in Patients with Osteonecrosis of Femoral Head - Summit® Stem and Bencox® Stem -

Cited by 4 publications

References 20 publications

Minimum Seven-year Follow-up of Cementless Total Hip Arthroplasty with the COREN Hip System

Minimum Seven-year Follow-up of Cementless Total Hip Arthroplasty with the COREN Hip System

Cementless Total Hip Arthroplasty Using the COREN Hip System: A Minimum Five-Year Follow-up Study

Primary Total Hip Arthroplasty Using Summit® Stems in Korean: Minimum Four-year Follow-up

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Comparative Analysis of Two Cementless Stems in Total Hip Arthroplasties in Patients with Osteonecrosis of Femoral Head - Summit^® Stem and Bencox^® Stem -

Primary Total Hip Arthroplasty Using Summit^® Stems in Korean: Minimum Four-year Follow-up