The Mayo Conservative hip: Experience from a District General Hospital

2009 ◽  
Vol 19 (3) ◽  
pp. 211-214 ◽  
Author(s):  
Rob E. Gilbert ◽  
Seema Salehi-Bird ◽  
Peter D. Gallacher ◽  
Phillip Shaylor
Keyword(s):  
Femoral Component ◽  
Hip Replacement ◽  
District General Hospital ◽  
Fracture Rate ◽  
Bone Stock ◽  
Femoral Prosthesis ◽  
Femoral Bone ◽  
Short Term ◽  
The Mean

The Mayo Conservative Hip femoral prosthesis has been designed to optimise proximal femoral loading as well as preserving proximal femoral bone stock. Between October 2003 and May 2006, 42 patients (49 hips) underwent total hip replacement (THR) using the Mayo Conservative Hip femoral component. The mean age at operation was 57.8 years (range 44 to 74) and the mean clinical follow up was 3.1 years (range 2.3 to 4.7 years). The aim of our study was to review the short term results of this unorthodox femoral component. We found that 18%° of stems were malaligned ≥ 5° and the prevalence of intra-operative femoral fracture was 4%. We feel this prosthesis is difficult to implant and has an unacceptable fracture rate.

Boneloc versus Simplex Cement for Fixation of Femoral Components. An Interim Report of a Prospective Randomized Study of THRs with a 2,5 Year Mean Follow-Up Time

1996 ◽  
Vol 6 (3) ◽  
pp. 112-118 ◽  
Author(s):  
H. Klyver ◽  
K Jacobsen ◽  
H. Kofoed
Keyword(s):  
Femoral Component ◽  
Randomized Study ◽  
Femoral Stem ◽  
Prospective Randomized Study ◽  
Bone Cements ◽  
Interim Report ◽  
Short Term ◽  
Cement Interface ◽  
The Mean

A prospective randomized study of femoral stem fixation comparing Boneloc and Simplex cements was carried out. A collarless double-tapered femoral component was used in all cases. The material consisted of 94 patients representing 97 THRs (3 bilateral cases). Their mean age was 76 years (range 58-88). Clinico-radiographic follow-ups were carried out after 3 months, 12 months and 2 to 3 years. The mean follow up time was 2.5 years. Clinically there was no difference between the groups. Radiolucencies at the bone-cement interface and metal-cement interface, cement cracks, and subsidence of the femoral component were compared. No significant differences could be proven between the fixation patterns of the bone cements during this short-term follow-up.

Revision of Failed Cemented Total Hip Arthroplasty Using the Charnley Technique and Implants

1997 ◽  
Vol 7 (1) ◽  
pp. 17-27 ◽  
Author(s):  
G. CH. Babis ◽  
TH. Pantazopoulos ◽  
TH. Ioannidis ◽  
G. Hartofilakidis
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoral Component ◽  
Acetabular Component ◽  
Bone Stock ◽  
Total Hip ◽  
The Mean ◽  
Hip Arthroplasties ◽  
Cemented Total Hip Arthroplasty

The authors present the results of 57 revisions in 54 patients performed for aseptic loosening of cemented total hip arthroplasties. The Charnley technique and implants were used in all cases. The mean follow-up was 8 years and 6 months with a minimum of 5 years. The failure rate for the femoral component was 15% and for the acetabular component it was 19.1%. The cumulative success rate at 8 years was 81.7% for the femoral component and 83.4% for the acetabular component. The Charnley technique and implants were found efficient for revision of cemented total hip arthroplasties in the long term, but there are limitations to their use in the presence of severely compromised bone stock.

scholarly journals Salvage Total Hip Replacement after Failed Internal Fixation of Trochanteric Fracture Femur.

2021 ◽  
Vol 5 (1) ◽  
pp. 751-757
Author(s):  
Vilson Ruci ◽  
Edvin Selmani ◽  
Agron Dogjani
Keyword(s):  
Internal Fixation ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Femoral Fractures ◽  
Harris Hip Score ◽  
Salvage Procedure ◽  
Bone Stock ◽  
Total Hip ◽  
The Mean

Background: Total hip replacement (THR) is one treatment option for failed hip fracture fixation. It is considered as a salvage procedure for older patients, patients with poor bone stock, avascular necrosis of the femoral head, associated with damaged acetabular articular cartilage. Patients and Methods: Total hip replacement was done for forty patients with failed internal fixation of trochanteric femoral fractures, 28 males and 12 females completed the follow up and six patients were lost. The procedure was carried out through a lateral exposure in all cases. Harris hip score (HHS) was used for clinical evaluation preoperatively, postoperatively. Radiographic evaluation comprising anteroposterior radiographic views of the pelvis and femur and a lateral view of the femur were performed at follow-up visits. Results: The mean time of follow up was 48 months (range from 36-72 months). The mean Harris hip score was improved from a mean of 24 points preoperative to 88 points at final follow up. Pain relief and gait correction were noted at the final follow up. Twenty-eight patients (70%) could freely walk outdoors using a cane or elbow crutch; eight patients (20 %) had a limited walking ability using two axillary crutches, and four patients (10 %) were able to walk indoors only. Conclusion: Total hip arthroplasty is a good salvage procedure after failed internal fixation of trochanteric femoral fractures. Individual selection of the implant depends upon the age of patient, level of activity, the bone stock of proximal femur, and the condition of the acetabulum. To maintain stability, reattachment of the greater trochanter should be done. To avoid intraoperative fractures of osteoporotic bone, dislocation of the hip should be very careful.

The Incidence of Fracture in Total Hip Replacement Femoral Components

1978 ◽  
Vol 7 (2) ◽  
pp. 107-110 ◽  
Author(s):  
H. S. Dobbs
Keyword(s):  
Femoral Component ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Fracture Rate ◽  
Total Hip ◽  
Total Hip Replacements ◽  
Orthopaedic Hospital ◽  
Hip Replacements ◽  
Cobalt Chrome

The paper reports on the incidence of fracture of the femoral component of total hip replacements in patients at the Royal National Orthopaedic Hospital over the period 1963-1976. The average incidence of fracture was approximately 0.2 per cent per year for air melt air cast cobalt chrome components. For vacuum melt vacuum cast components there were no fractures, but because of the small number of insertions with a long follow-up period, this result could have been fortuitous. There was a suggestion that the fracture rate increased with time, but even 0.2 per cent is considered too high.

Effect of proximal femoral bone support on the fixation of a press-fit noncemented total hip replacement femoral component

2012 ◽  
Vol 11 (1) ◽  
pp. 26-34
Author(s):  
Sophia N. Sangiorgio ◽  
Edward Ebramzadeh ◽  
Sean L. Borkowski ◽  
Daniel A. Oakes ◽  
Jeremy J. Reid ◽  
...  
Keyword(s):  
Femoral Component ◽  
Total Hip Replacement ◽  
Hip Replacement ◽  
Femoral Bone ◽  
Total Hip ◽  
Press Fit

scholarly journals Resultats A Court Terme De La Trabeculoplastie Selective Au Laser Chez Les Patients Togolais

2017 ◽  
Vol 13 (30) ◽  
pp. 271
Author(s):  
Dzidzinyo Kossi ◽  
Djagnikpo Akouete ◽  
Ayena Koffi Didier ◽  
Vonor Kokou ◽  
Maneh, Nidain ◽  
...  
Keyword(s):  
Selective Laser Trabeculoplasty ◽  
Treatment Results ◽  
Short Term ◽  
Laser Trabeculoplasty ◽  
The Mean ◽  
Laser Control ◽  
Pre Treatment ◽  
Primary Glaucoma ◽  
Reduction Percentage

Aim: To check the short-term tonometric results of SLT in the treatment of primary glaucoma at the open angle and in charge of ocular hypertonias in Togolese people. Methods: A retrospective study was carried out in an ophthalmology center. The first 130 eyes of 72 patients benefited from the SLT laser procedure. The tonometric controls work object focus on follow-up at 1, 3, and 6 months post laser treatment. Results: 130 eyes of 72 patients were collected. The average age of the patients was 49.74 years (± 17.45) and the ages vary between 10 and 85 years. The average IOP of the laser before the laser (J0) was (24.99 ± 8.41) mm Hg. The mean IOP at the post-laser control at 1 month was (18.79 ± 3.73) mm Hg. The average IOP for the post-laser control at 3 months was (18.44 ± 3.81) mm Hg. The mean IOP at the post-laser control at 6 months was (18.13 ± 3.63) mm Hg. The percentage reduction in intraocular pressure compared to IOP was pretreated from 20.2% to 1 month; 22.1% at 3 months; and 23.3% at 6 months. In 1 month, 49.2% of the eyes we treated showed a reduction in IOP of less than 20% compared to IOP pretreatment. After 3 months and 6 months, it was 55.4% higher. Also, 52.3% have a PIO reduction percentage which is greater than or equal to 20% compared to pre-treatment IOP. Discussion: Selective laser trabeculoplasty, most especially, is interesting in ocular hypertonies. Treatment of over 180 ° allows one patient out of two to have a pressure reduction that is greater than or equal to 20%. Conclusion: The SLT presents a significant advantage for our glaucomatous patients.

A different fixation of the femoral component in total knee arthroplasty may lead to preservation of femoral bone stock

2003 ◽  
Vol 217 (5) ◽  
pp. 325-332 ◽  
Author(s):  
M Barink ◽  
N Verdonschot ◽  
M de Waal Malefijt
Keyword(s):  
Femoral Component ◽  
Knee Arthroplasty ◽  
Bone Remodelling ◽  
Significant Loss ◽  
Bone Stock ◽  
Femoral Bone ◽  
Secondary Effects ◽  
Total Knee ◽  
The Stability

Good femoral bone stock is important for the stability of the femoral component in revision knee arthroplasty. However, the primary total knee replacement (TKR) may cause significant loss of bone stock in the distal anterior femur. Earlier stress-induced bone remodelling simulations have suggested that a completely debonded component may save bone stock in the distal anterior region. However, these simulations did not consider the fixation of a debonded implant and possible secondary effects of micromotions and osteolysis at the interface. The current study tries to combine the preservation of bone stock with adequate component fixation. Different bone remodelling simulations were performed around femoral knee components with different sizes of bonding area and different friction characteristics of the debonded area. The fixation of the femoral component with different bonding characteristics is quantified with calculated implant-bone interface stresses. The results show that a bonded femoral component with a debonded inner side of the anterior flange may significantly reduce bone resorption in the endangered distal anterior femur, without jeopardizing the fixation of the femoral implant. This effect may be obtained in vivo by using a femoral component with a highly polished inner side of the anterior flange.

Short-Term Clinical Assessment of Hip Hemi-Arthroplasty in 11 Dogs

2021 ◽  
Author(s):  
Renée Huggard ◽  
Grace Wicks ◽  
Gordon Corfield
Keyword(s):  
Total Hip Replacement ◽  
Hip Replacement ◽  
Femoral Stem ◽  
Salvage Procedure ◽  
Short Term ◽  
Total Hip ◽  
Pelvic Radiography ◽  
Hemi Arthroplasty

Abstract Objective The aim of this study was to assess the short-term clinical outcome in dogs following a hip hemi-arthroplasty for the treatment of primary pathological disorders of the hip and as a salvage procedure following failure of the cup component of a total hip replacement. Materials and Methods Medical records of dogs that had a unilateral hip hemi-arthroplasty performed between 2015 and 2020 were reviewed. Data collected included follow-up orthopaedic examinations performed at 0, 2, 8 and 52 weeks postoperatively, pelvic radiography at 0, 8 and 52 weeks postoperatively and an owner questionnaire (Helsinki chronic pain index [HCPI]). Results Eleven unilateral hip hemi-arthroplasty procedures were identified. The median age at time of surgery was 3.6 years (8 months–10 years) and the median follow-up time was 13 months (range: 2 months–3 years). The HCPI for all dogs at follow-up was median 8 ± 7.30 (range: 5–25). Total HCPI was < 12 for 7/10 dogs and ≥ 12 for 3 dogs. Pelvic radiographs at 1 year confirmed osteointergration of the femoral stem implant and no evidence of implant subsidence or progression of osteoarthritis. However, there was some evidence of mild lucency of the acetabular bed around the prosthetic femoral head and mild peri-acetabular sclerosis in four cases. Conclusion Hip hemi-arthroplasty provides a clinically acceptable treatment for disabling disease of the coxofemoral joint with 10/11 patients achieving acceptable short-term clinical function. Long-term assessment of the hip hemi-arthroplasty and comparison with total hip replacement is indicated.

Isoelastic Cementless Total Hip Replacement in Rheumatoid Arthritis. Long-Term Results

1992 ◽  
Vol 2 (2) ◽  
pp. 43-46
Author(s):  
U. Fusco ◽  
R. Capelli ◽  
A. Avai ◽  
M. Gerundini ◽  
L. Colombini ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Hip Replacement ◽  
The Other ◽  
Long Term Results ◽  
X Rays ◽  
X Ray ◽  
The Mean ◽  
Cementless Total Hip Replacement

Between 1980 and 1987 we have implanted 46 isoelastic cementless THR in 40 patients affected with rheumatoid arthritis. We have reviewed 38 hips clinically and by X-ray. The mean follow-up was 8,5 years. Harris hip scores ranged from 30.6 preoperatively to 73,4 post-operatively when reviewed. While on the other hand Merle D'Aubigné hip scores ranged from 7,06 pre-operatively to 15,59 post-operatively. All patients have been satisfied, and X-rays showed an improvement for both Charnely and Gruen X-ray score.

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