Medium-Term Outcome of Total Hip Replacement for Dysplastic Hips in Singapore

Kumar, Jajodia Nirmal; Kumar, Jain Sumit; Wang, Victor T J; De, Soumen Das

doi:10.1177/230949901001800308

Cited by 9 publications

(5 citation statements)

References 23 publications

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“…The calculated values of abduction implant did not significantly differ between the two groups of patients and were positioned within the recommended range. These results are in accordance with similar stud ies (20). It is interesting to mention that in 18 cases the use of autograft did not significantly alter the values of the acetabular component abduction of endoprosthesis.…”

Section: Discussionsupporting

confidence: 92%

Acetabular Component Position of the Noncemented Total Hip Endoprosthesis after Previous Chiari Pelvic Osteotomy

Slavković¹,

Vukašinović²,

Seslija³

et al. 2013

Acta Chir. orthop. Traum. Cech.

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InTRODUCTIOnThe aim of the study was to determine the validity of acetabular component position of the noncemented total hip endoprosthesis after Chiari pelvic osteotomy. MATERIAL AnD METHODSThe study involved 75 patients operated on at the Institute of Orthopedic Surgery "Banjica" in the period from 1990-2009. The first group consisted of 39 patients (46 hips) who underwent Chiari pelvic osteotomy and also later the implantation of a noncemented total hip endoprosthesis. A control group consisted of 36 patients (47 hips) who underwent total hip arthroplasty due to degenerative hip dysplasia. RESULTSIn the previously operated patients the centre of rotation of the hip was on the average placed more proximally, while in the control group of patients the position of the acetabular component was closer to the anatomical one. In the group of patients after Chiari osteotomy the mean acetabular cup abduction angle rated 41.8° ± 9.8°, while in the control group this value was on the average higher (45.4° ± 8.6°). DISCUSSIOnThere was a significant difference between the studied groups in relation to the distance between the acetabular component of endoprosthesis and the acetabular teardrop (t = -2.763; p = 0.007). no statistically significant difference was determined in the mean value of the angle of acetabular abduction component of endoprosthesis between the studied groups of patients (t = 1.878; p = 0.064). COnCLUSIOnSAcetabular component position of the total hip endoprosthesis was not compromised by anatomic changes of the acetabulum caused by Chiari pelvic osteotomy.

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Section: Discussionsupporting

confidence: 92%

Acetabular Component Position of the Noncemented Total Hip Endoprosthesis after Previous Chiari Pelvic Osteotomy

Slavković¹,

Vukašinović²,

Seslija³

et al. 2013

Acta Chir. orthop. Traum. Cech.

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“…However, the Zweymuller stem has limited ability to correct abnormal femoral version. In terms of loosening, subsidence or thigh pain no significant difference was noted by Kumar et al [17] in using the cemented and uncemented stems for low grade dysplasia. Schuh et al [18] have published long term clinical and radiographic results of the Wagner cone prosthesis in 94 patients with mean follow up 11.5 years.…”

Section: Discussionmentioning

confidence: 73%

Total Hip Replacement in Developmental Dysplasia of the Hip Using Wagner Cone Prosthesis with Small Diameter Metal-On-Metal Articulation

Maheshwari¹

2013

Orthop Muscul Syst

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“…27 On the other hand, developmental dysplasia of the hip is the common cause of secondary hip osteoarthritis and the prevalence ranges from 5.4 to 12.8% among different ethnic groups. 28,29 The female gender is one of the known risk factors for dysplasic hips, and these patients usually end up with THA at younger age eventually. 30 Due to undeveloped acetabulum, the acetabulum anatomy in dysplasic hip patients usually characterized with deficiencies in anterolateral and superior wall and lacks of bone stock medially.…”

Section: Discussionmentioning

confidence: 99%

A 6 to 10 Years Follow-Up Study Comparing Two-incision Total Hip Arthroplasties in Patients with Osteonecrosis of the Femoral Head or Hip Dysplasia

Chen

Kou

et al. 2017

J Hip Surg

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Muscle sparing approaches for total hip arthroplasties (THAs) have been advocated in the past two decades. The twoincision approach technique is one of the muscle sparing approaches. The technique has the potential benefits of avoiding muscle and tendon damage, less intraoperative blood loss, rapid patient recovery, and shortened hospitalization but might increase complications such as fractures, nerve injury, and implants malposition, so it required a steep learning curve.1-6 The ideal cup position, stem alignment, and proper leg length and offset are the keys to a successful THA. Our previous study has demonstrated that using of intraoperative fluoroscopy or imageless navigation system can increase the accuracy of cup and stem alignment for the two-incision THA. AbstractTwo-incision total hip arthroplasty (THA) has a steep learning curve and might increase the risks of implant malposition and perioperative complications in difficult cases. Whether dysplasic hip or osteonecrosis of the femoral head (ONFH) would have different results by the two-incision technique remains unreported. From 2003 to 2010, 159 hips in 151 patients (68 female and 83 male) treated with the two-incision THA were included. Cases were divided into two groups with ONFH in 99 hips and dysplasia in 60 hips. The inclusion criteria for hip dysplasia were a Sharp's angle more than 43°and coverage of the femoral head less than 75%. Clinical data and radiological measurement were retrospectively analyzed. The ONFH patients had younger age (48.5 AE 12.8 years) with male predominance (74%) while the dysplasic patients had older age (62 AE 12 years) with female predominance (76%). There were no differences in preoperative functional score, operation time, blood loss, wound size, and length of hospital stay between groups. The ONFH group had bigger cup size (p ¼ 0.028) but similar stem size (p ¼ 0.072) as compared with the dysplasia group. The cup inclination angle was 43.7°AE 4.8°and 42.8°AE 5°(p ¼ 0.25) and the cup anteversion angle was 17.6°AE 7.6°and 14.2°AE 8.2°(p ¼ 0.009), in the ONFH and the dysplasia group, respectively. At the final follow-up, there were three revisions cases (one septic loosening in the dysplasia group and two periprosthetic fractures in the ONFH group). No dislocation was noted in the study cohort. We had overall 99.4% cup and 98.1% stem survival rate with the two-incision THA. The only differences were the bigger cup size and the more anteverted cup position in the ONFH hips as compared with the dysplasic hips. The two-incision THA seemed to be successful for patients with ONFH or dysplasic hips.

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Medium-Term Outcome of Total Hip Replacement for Dysplastic Hips in Singapore

Abstract: Conventional THR can achieve good medium-term results in low-grade dysplastic hips.

Cited by 9 publications

References 23 publications

Acetabular Component Position of the Noncemented Total Hip Endoprosthesis after Previous Chiari Pelvic Osteotomy

Acetabular Component Position of the Noncemented Total Hip Endoprosthesis after Previous Chiari Pelvic Osteotomy

Total Hip Replacement in Developmental Dysplasia of the Hip Using Wagner Cone Prosthesis with Small Diameter Metal-On-Metal Articulation

A 6 to 10 Years Follow-Up Study Comparing Two-incision Total Hip Arthroplasties in Patients with Osteonecrosis of the Femoral Head or Hip Dysplasia

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