Hip Replacement Arthroplasty (Subscribe)  

Site to calculate the Harris Hip Score

Goldmine of orthopaedic scores and scoring systems. 10 surgeon based and 20 patient based scoring systems for all regions of the musculoskeletal system. Includes: Harris Hip Score, Knee Society Score, Oxford Knee Score, WOMAC, Cincinatti Knee Score, Tegner Lysholm, American Foot & Ankle Score AFAS, UCLA Shoulder Rating Scale, Mayo...

First experience with omnifit hip prosthesis with hydroxyapatite: minimum two years follow-up
A.Carfagni, R .Giacomi, C.F.De Biase Internet Journal of Orthopedic Surgery and related Subjects Issue 1 1997 C.F.De Biase Department of Orthopaedic and Traumatology San Carlo di Nancy Roma
The purpose of this study is to evaluate the results obtained by our group fare capo...

Reconstruction of the Pelvis Using a Segmental Autograft of the Ipsilateral Femur
J. Puget
Tumours of the pelvis are doubly difficult to manage: not only does the growth have to be removed, but means have to be devised to guard against postoperative loss of function if the tumour site has involved the...

The current study asks the questions, "Does femoroacetabular impingement occur after hip resurfacing arthroplasty (HRA) and, if so, what are the clinical outcomes?"
CONCLUSIONS: Small, corticated, non-progressive erosions can occur from femoroacetabular impingement following HRA. The erosions were more commonly posterior in this series, and they tended to occur in active...

Results Eight hips (of 69) were revised (three for infection and five for aseptic loosening) and one hip dislocated for which open reduction was necessary. One additional cup was considered a radiographic failure. The 10-year survival was 83% (95% confidence interval, 69%–92%) with revision for any reason as the end point...

Results Compared with patients treated at high-volume hospitals (above the 20th percentile), patients treated at low-volume hospitals (below the 60th percentile) had a higher aggregate risk of having short-term complications (odds ratio, 2.00). A variety of patient factors also had associations with an increased risk of complications: increased Charlson comorbidity score,...

Conclusions Cementless THA combined with autologous femoral bone graft in patients with developmental dysplasia resulted in a high rate of survival. Structural bone grafting achieved a stable construct until osseointegration occurred. We believe the radiodense bands represent a radiographic sign of successful completion of repair of the deficient acetabulum. Congruous and...

Conclusions Pseudotumor-like reactions can be caused by high wear, but may also occur around implants with low wear, likely because of a metal hypersensitivity reaction. Histologic features including synovial integrity, inflammatory cell infiltrates, tissue organization, and metal particles may help differentiate these causes.
Clinical Relevance Painful hips with periprosthetic masses may be caused...

Questions/purposes We compared the short-term risk of complication and revision THA among Medicare patients having a primary THA with metal-polyethylene (M-PE), metal-metal (M-M), and ceramic-ceramic (C-C) bearings.
Conclusions The risk of short-term complication (including dislocation) and revision THA were similar among appropriately matched Medicare THA patients regardless of bearing surface. Hard-on-hard THA bearings...

Results We evaluated this test in 20 patients clinically and by magnetic resonance imaging (MRI). All patients demonstrated a positive internal rotation lag sign. Twelve of them lag of internal rotation and evidence of anterior abductor tendon rupture on MRI, 8 with lag of internal rotation and no evidence of abductor...

Conclusions The minimal invasive approach in THA did not show a clinically relevant superior outcome in the first postoperative year.
Minimally invasive versus classic procedures in total hip arthroplasty: a double-blind randomized controlled trial. Goosen JH, Kollen BJ, Castelein RM, Kuipers BM, Verheyen CC. Clin Orthop Relat Res. 2011 Jan;469(1):200-8. (full text)

Conclusions The reduction in wear with 5 Mrad of crosslinking was not offset by increasing the diameter from 28 mm to 36 mm or by using a liner as thin as 3 mm.
Clinical Relevance The results indicate, for a properly positioned 5-Mrad crosslinked acetabular component and within the range of dimensions evaluated,...

Archive Copy: - 1999 Annual Meeting Scientific Program. Low Wear Bearings for Total Hip Replacements
Moderator H. Amstutz

Bezwada, Nazarian & Booth 2004 Updated: Apr 15, 2009
Since the introduction of the low-friction total hip arthroplasty (THA) by Sir John Charnley, wear has been a primary issue in hip arthroplasty. Charnley's original choice for bearing surfaces was a stainless steel head on polytetrafluoroethylene (PTFE). This choice was complicated by...