Advertisement for orthosearch.org.uk
Results 1 - 20 of 31
Results per page:
Orthopaedic Proceedings
Vol. 91-B, Issue SUPP_I | Pages 174 - 174
1 Mar 2009
Wodtke J Stangenberg P Loehr J
Full Access

Introduction: Limb salvage through a total femur (TOFEM) prosthesis is a rare procedure. The infection rate is high due to the large implant surface, a long OR-time and often severely compromised soft tissues. In case of infection the one stage procedure is the way of revision to avoid impairing instability for the patient.

Material + Methods: Between 1996 and 2005 46 one stage exchanges were performed in 37 patients. 23 patients were available for review in 2006. 13 had died, 1 could not be located. The infection-free periods, subjective satisfaction with the procedure and clinical outcome were evaluated. The average follow-up time (FU) was 46 months (8/104). Male/female ratio 10/27, average age 66 yrs. (30/87). The average number of revisions before the TOFEM was 5 (1/11).

Indication for a TOFEM was fracture in 43%, bone loss in 51% and others in 6 %. Infection occurred at primary intervention in 32%, in connection with revisions in 18% or delayed in 49%.

Results: 16 Patients were cured in a one step procedure. 10 Patients underwent further revisions. Two or more exchanges were carried out in 6 cases with success. Patient’s satisfaction rate was 55%. 13 were valued unsatisfied. 8 exarticulations became necessary later and 5 Patients died in the course of the treatment. 2 of those were exarticulated before.

Conclusion: One stage exchange is a promising procedure avoiding loss of the limb. A high complication rate exists and secondary exarticulation may still become necessary.

Summary: The infectious complication in total femur prosthesesis presents a severe problem. A one stage revision offers another good chance for limb salvage, but morbidity and mortality risks are high.


The Bone & Joint Journal
Vol. 104-B, Issue 1 | Pages 127 - 133
1 Jan 2022
Viberg B Pedersen AB Kjærsgaard A Lauritsen J Overgaard S

Aims

The aim of this study was to assess the association of mortality and reoperation when comparing cemented and uncemented hemiarthroplasty (HA) in hip fracture patients aged over 65 years.

Methods

This was a population-based cohort study on hip fracture patients using prospectively gathered data from several national registries in Denmark from 2004 to 2015 with up to five years follow-up. The primary outcome was mortality and the secondary outcome was reoperation. Hazard ratios (HRs) for mortality and subdistributional hazard ratios (sHRs) for reoperations are shown with 95% confidence intervals (CIs).


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_III | Pages 327 - 328
1 Jul 2011
Meani E Trezza P
Full Access

This technical choice constitutes an effective solution for all those cases where, due to the infective damage, the radical surgical debridement needed or in presence of a septic pseudoarthrosis, there is a relevant loss of bone stock in the proximal femur.

As a treatment for these specific clinical patterns oncological prosthetic implants can be used, to overcome the amount of bone loss.

Sometimes acetabular prosthetic implantation, or reimplantation, is also needed because of its septic mobilization, otherwise a bicentric endoprosthesis can be implanted.

The main issue for the surgeon is the gluteal muscular deficiency, caused often by the loss of the great trochanter, a severe condition often worsened by the damage on muscles and soft tissues given by previous surgical procedures and debridements.

The offset itself, really often not sufficient for the limited amount of sizes and lengths of the oncological designed prosthetic implants, represent a key issue of this treatment with a high luxation risk, with a higher rate in those cases when an arthroprosthesis has been performed.

In this article are described 4 cases, all four treated with a two-stage surgical approach and a definitive oncological prosthetic system to overcome the severe bone loss of the proximal femur.

The cases are examined about the surgical indication to this prosthetic choice, the postoperative period with the related complications (1 case of recurrent luxation) and with a minimum follow up of 6 months (maximum 36 months).

In all the cases at the follow up the infection is solved.

At the end the specific rehabilitation program for the range of motion and the muscular strength regain, that we developed in our Operative Unit is described; in this program we occasionally used for the immediate post surgery period a jointed hip brace.

The length of the rehabilitation could not be standard, but should be customized and variations of the program could be done during the follow up.

In the immediate post-surgical period the rehabilitative goals are maintaining the correct posture in bed and regaining the passive articular range of motion.

In the longer period the main goals are regain strength of the gluteal muscles, proprioception and gait, even if claudication (Trendelemburg), hyposthenia a recurrent dislocation can be let.

The weight bearing is allowed usually at the eight week after surgery, but only after clinical and x-ray evaluation.


Bone & Joint 360
Vol. 12, Issue 1 | Pages 17 - 20
1 Feb 2023

The February 2023 Hip & Pelvis Roundup360 looks at: Total hip arthroplasty or internal fixation for hip fracture?; Significant deterioration in quality of life and increased frailty in patients waiting more than six months for total hip or knee arthroplasty: a cross-sectional multicentre study; Long-term cognitive trajectory after total joint arthroplasty; Costal cartilage grafting for a large osteochondral lesion of the femoral head; Foley catheters not a problem in the short term; Revision hips still a mortality burden?; How to position implants with a robotic arm; Uncemented stems in hip fracture?


Bone & Joint Open
Vol. 4, Issue 4 | Pages 226 - 233
1 Apr 2023
Moore AJ Wylde V Whitehouse MR Beswick AD Walsh NE Jameson C Blom AW

Aims

Periprosthetic hip-joint infection is a multifaceted and highly detrimental outcome for patients and clinicians. The incidence of prosthetic joint infection reported within two years of primary hip arthroplasty ranges from 0.8% to 2.1%. Costs of treatment are over five-times greater in people with periprosthetic hip joint infection than in those with no infection. Currently, there are no national evidence-based guidelines for treatment and management of this condition to guide clinical practice or to inform clinical study design. The aim of this study is to develop guidelines based on evidence from the six-year INFection and ORthopaedic Management (INFORM) research programme.

Methods

We used a consensus process consisting of an evidence review to generate items for the guidelines and online consensus questionnaire and virtual face-to-face consensus meeting to draft the guidelines.


Bone & Joint Research
Vol. 11, Issue 9 | Pages 608 - 618
7 Sep 2022
Sigmund IK Luger M Windhager R McNally MA

Aims

This study evaluated the definitions developed by the European Bone and Joint Infection Society (EBJIS) 2021, the International Consensus Meeting (ICM) 2018, and the Infectious Diseases Society of America (IDSA) 2013, for the diagnosis of periprosthetic joint infection (PJI).

Methods

In this single-centre, retrospective analysis of prospectively collected data, patients with an indicated revision surgery after a total hip or knee arthroplasty were included between 2015 and 2020. A standardized diagnostic workup was performed, identifying the components of the EBJIS, ICM, and IDSA criteria in each patient.


Bone & Joint Open
Vol. 3, Issue 7 | Pages 557 - 565
11 Jul 2022
Meier MK Reche J Schmaranzer F von Tengg-Kobligk H Steppacher SD Tannast M Novais EN Lerch TD

Aims

The frequency of severe femoral retroversion is unclear in patients with femoroacetabular impingement (FAI). This study aimed to investigate mean femoral version (FV), the frequency of absolute femoral retroversion, and the combination of decreased FV and acetabular retroversion (AR) in symptomatic patients with FAI subtypes.

Methods

A retrospective institutional review board-approved observational study was performed with 333 symptomatic patients (384 hips) with hip pain due to FAI evaluated for hip preservation surgery. Overall, 142 patients (165 hips) had cam-type FAI, while 118 patients (137 hips) had mixed-type FAI. The allocation to each subgroup was based on reference values calculated on anteroposterior radiographs. CT/MRI-based measurement of FV (Murphy method) and AV were retrospectively compared among five FAI subgroups. Frequency of decreased FV < 10°, severely decreased FV < 5°, and absolute femoral retroversion (FV < 0°) was analyzed.


Orthopaedic Proceedings
Vol. 101-B, Issue SUPP_14 | Pages 95 - 95
1 Dec 2019
Meinshausen A Märtens N Illiger S Macor P Färber J Lohmann CH Bertrand J
Full Access

Aim. Low-grade infections cannot be easily distinguished from aseptic complications frequently leading to false negative diagnoses and late onset of anti-bacterial therapy. Therefore, there is a great need to establish biomarkers for early detection of low-grade infections. Method. In this study, we focused on the investigation of anti-α-defensin, anti-C3, anti-C5 and anti-C9 as potential biomarkers for infection in a cohort of hip and knee septic revision cases, taking patient characteristics and comorbidities into account. Here we included 78 patients with septic (35) and aseptic (43) (woman:37, men:42, age 50 – 93 years) revision surgeries of hip and knee. CRP serum levels and leucocyte blood values were evaluated. Patient characteristics, including age, number of prior revision surgeries and comorbidities were recorded. Periprosthetic tissue was stained histologically with Hematoxylin/Eosin and immunohistologically with different antibodies. Results. The CRP values were significantly increased in the septic cohort, but no changes were observed in leucocyte count. Interestingly, we found a strong increase in the terminal complement system component C9 (septic: 0.1% ± 0.2% aseptic: 0.01% ± 0.05%, p= 0.0004) in the septic periprosthetic tissue. The predictive value of α-defensin staining was not statistically significant (septic: 0.5% ± 0.7% aseptic: 0.1% ± 0.6%, p= 0.09). Analyzing the synovial fluid of aseptic and septic patients, the presence of C9 in the septic group (1.8 ± 0.4) was not significantly higher compared to the aseptic (1.9 ± 0.7) group. The next step was to investigate the specificity C9 detection using different joint related diseases such as chondrocalcinosis (CC), rheumatoid arthritis (RA) and metallosis. The median of C9 staining in the CC group (0 ± 0.0001) was significant lower than the infection group. Similar results have been observed in RA (0.0003 ± 0.2) and the metallosis group (0.0002 ± 0.01). Conclusions. We found a strong predictive value of anti-C9 staining for tissue infection, suggesting that C9 deposition could be a novel biomarker for the identification of periprosthetic joint infections using tissue biopsies


The Bone & Joint Journal
Vol. 104-B, Issue 1 | Pages 59 - 67
1 Jan 2022
Kingsbury SR Smith LK Shuweihdi F West R Czoski Murray C Conaghan PG Stone MH

Aims

The aim of this study was to conduct a cross-sectional, observational cohort study of patients presenting for revision of a total hip, or total or unicompartmental knee arthroplasty, to understand current routes to revision surgery and explore differences in symptoms, healthcare use, reason for revision, and the revision surgery (surgical time, components, length of stay) between patients having regular follow-up and those without.

Methods

Data were collected from participants and medical records for the 12 months prior to revision. Patients with previous revision, metal-on-metal articulations, or hip hemiarthroplasty were excluded. Participants were retrospectively classified as ‘Planned’ or ‘Unplanned’ revision. Multilevel regression and propensity score matching were used to compare the two groups.


The Bone & Joint Journal
Vol. 103-B, Issue 1 | Pages 46 - 55
1 Jan 2021
Grzelecki D Walczak P Szostek M Grajek A Rak S Kowalczewski J

Aims

Calprotectin (CLP) is produced in neutrophils and monocytes and released into body fluids as a result of inflammation or infection. The aim of this study was to evaluate the utility of blood and synovial CLP in the diagnosis of chronic periprosthetic joint infection (PJI).

Methods

Blood and synovial fluid samples were collected prospectively from 195 patients undergoing primary or revision hip and knee arthroplasty. Patients were divided into five groups: 1) primary total hip and knee arthroplasty performed due to idiopathic osteoarthritis (OA; n = 60); 2) revision hip and knee arthroplasty performed due to aseptic failure of the implant (AR-TJR; n = 40); 3) patients with a confirmed diagnosis of chronic PJI awaiting surgery (n = 45); 4) patients who have finished the first stage of the PJI treatment with the use of cemented spacer and were qualified for replantation procedure (SR-TJR; n = 25), and 5) patients with rheumatoid arthritis undergoing primary total hip and knee arthroplasty (RA; n = 25). CLP concentrations were measured quantitatively in the blood and synovial fluid using an immunoturbidimetric assay. Additionally, blood and synovial CRP, blood interleukin-6 (IL-6), and ESR were measured, and a leucocyte esterase (LE) strip test was performed.


The Journal of Bone & Joint Surgery British Volume
Vol. 85-B, Issue 3 | Pages 380 - 388
1 Apr 2003
Tidermark J Ponzer S Svensson O Söderqvist A Törnkvist H

The treatment algorithms for displaced fractures of the femoral neck need to be improved if we are to reduce the need for secondary surgery. We have studied 102 patients of mean age 80 years, with an acute displaced fracture of the femoral neck. They were randomly placed into two groups, treated either by internal fixation (IF) with two cannulated screws or total hip replacement (THR). None showed severe cognitive dysfunction, all were able to walk independently, and all lived in their own home. They were reviewed at four, 12 and 24 months after surgery. Outcome measurements included hip complications, revision surgery, hip function according to Charnley and the health-related quality of life (HRQoL) according to EuroQol (EQ-5D). The failure rate after 24 months was higher in the IF group than in the THR group with regard to hip complications (36% and 4%, respectively; p < 0.001), and the number of revision procedures (42% and 4%, p < 0.001). Hip function was significantly better in the THR group at all follow-up reviews regarding pain (p < 0.005), movement (p < 0.05 except at 4 months) and walking (p < 0.05). The reduction in HRQoL (EQ-5D . index. score) was also significantly lower in the THR group than in the IF group, comparing the pre-fracture situation with that at all follow-up reviews (p < 0.05). The results of our study strongly suggest that THR provides a better outcome than IF for elderly, relatively healthy, lucid patients with a displaced fracture of the femoral neck


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_8 | Pages 62 - 62
1 May 2016
Jenny J Adamczewski B Godet J De Thomasson E
Full Access

INTRODUCTION. The diagnosis of peri-prosthetic infection may be difficult. But this diagnosis can guide antibiotic prophylaxis and implementation of intraoperative bacteriological samples. The hypothesis of this study was that a composite score using clinical, radiological and biological data could be used for positive and negative diagnostic of infection before reoperation on prosthetic hip or knee. MATERIAL. 200 reoperations on hip and knee arthroplasty for any cause were analyzed retrospectively. 100 cases concerned infected cases, while the diagnosis of infection was excluded in the other 100 cases. METHODS. Different criteria were collected: previous surgery of the operated joint, clinical, biological and radiological signs. Univariate analysis investigated the discriminating factors of infected and non infected cases. Multivariate analysis integrated concomitantly these factors. A composite score was defined, and its diagnostic efficacy was assessed by the percentage of the total variance explained by the score, by the percentage of correctly classified cases and by the sensitivity and specificity. RESULTS. The univariate and multivariate analyzes have isolated the following significant factors: body mass index, diabetes, prosthetic mechanical complication, fever, existence of a wound defect. The composite score so defined allows separating the infected and non infected patients accurately in 78% of cases, with a sensitivity of 57% and a specificity of 93%. DISCUSSION. The composite score defined predicts infection or no infection in the prosthetic joint before reoperation with good efficiency. This score could be a significant help to define the medical and surgical strategy in a prosthetic hip or knee reoperation for whatever reason. CONCLUSION. A prospective study is needed to confirm definitively the contribution of this score


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_2 | Pages 55 - 55
1 Jan 2017
García-Rey E Gómez-Barrena E
Full Access

Although cemented fixation provides excellent results in primary total hip replacement (THR), particularly in patients older than 75 years, uncemented implants are most commonly used nowadays. We compare the rate of complications, clinical and radiological results of three different designs over 75-years-old patients. 433 hips implanted in patients over 75 years old were identified from our Local Joint Registry. Group A consisted of 139 tapered cemented hips, group B of 140 tapered grit-blasted uncemented hips and group C of 154 tapered porous-coated uncemented hips. A 28 mm femoral head size on polyethylene was used in all cases. The mean age was greater in group A and the physical activity level according to Devane was lower in this group (p<0.001 for both variables). Primary osteoarthritis was the most frequent diagnoses in all groups. The radiological acetabular shape was similar according to Dorr, however, an osteopenic-cylindrical femur was most frequently observed in group A (p<0.001). The pre- and post-operative clinical results were evaluated according to the Merle-D'Aubigne and Postel scale. Radiological cup position was assessed, including hip rotation centre distance according to Ranawat and cup anteversion according to Widmer. We also evaluated the lever arm and height of the greater trochanter distances and the stem position. Kaplan-Meier analysis was done for revision for any cause and loosening. The hip rotation centre distance was greater and the height of the greater trochanter was lower in group B (p=0.003, p<0.001, respectively). The lever arm distance was lower in group C (p<0.001). A varus stem position was more frequently observed in group B (p<0.001). There were no intra- or post-operative fractures in group A, although there were five intra-operative fractures in the other groups plus two post-operative fractures in group B and four in group C. The rate of dislocation was similar among groups and was the most frequent cause for revision surgery (8 hips for the whole series). The mean post-operative clinical score improved in all groups. The overall survival rate for revision for any cause at 120 months was 88.4% (95% CI 78.8–98), being 97.8% (95% CI 95.2–100) for group A, 81.8% (95% CI 64.8–98.8) for group B and 95.3% (95% CI 91.1–99.6) for group C (log Rank: 0.416). Five hips were revised for loosening. The overall survival rate for loosening at 120 months was 91.9% (95% CI 81.7–100), being 99.2%(95% CI 97.6–100) for group A, 85.5 (95% CI 69.9 −100) for group B and 100% for group C (Log Rank 0.093). Despite a more osteopenic bone in the cemented group, the rate of peri-prosthetic fractures was higher after uncemented THR in patients older than 75 years. Although the overall outcome is good with both types of fixation, the post-operative reconstruction of the hip, which might be more reliable after cemented fixation, may affect the rate of complications in this population


The Bone & Joint Journal
Vol. 102-B, Issue 7 | Pages 822 - 831
1 Jul 2020
Kuroda Y Saito M Çınar EN Norrish A Khanduja V

Aims

This paper aims to review the evidence for patient-related factors associated with less favourable outcomes following hip arthroscopy.

Methods

Literature reporting on preoperative patient-related risk factors and outcomes following hip arthroscopy were systematically identified from a computer-assisted literature search of Pubmed (Medline), Embase, and Cochrane Library using Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines and a scoping review.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_7 | Pages 145 - 145
1 May 2016
Garcia-Cimbrelo E Garcia-Rey E
Full Access

Although cemented fixation provides excellent results in primary total hip replacement (THR), particularly in patients older than 75 years, uncemented implants are most commonly used nowadays. We compare the rate of complications, clinical and radiological results of three different designs over 75-years-old patients. Materials and Methods. 433 hips implanted in patients over 75 years old were identified from our Local Joint Registry. Group A consisted of 139 tapered cemented hips, group B of 140 tapered grit-blasted uncemented hips and group C of 154 tapered porous-coated uncemented hips. A 28 mm femoral head size on polyethylene was used in all cases. The mean age was greater in group A and the physical activity level according to Devane was lower in this group (p<0.001 for both variables). Primary osteoarthritis was the most frequent diagnoses in all groups. The radiological acetabular shape was similar according to Dorr, however, an osteopenic-cylindrical femur was most frequently observed in group A (p<0.001). The pre- and post-operative clinical results were evaluated according to the Merle-D'Aubigne and Postel scale. Radiological cup position was assessed, including hip rotation centre distance according to Ranawat and cup anteversion according to Widmer. We also evaluated the lever arm and height of the greater trochanter distances and the stem position. Kaplan-Meier analysis was done for revision for any cause and loosening. Results. The hip rotation centre distance was greater and the height of the greater trochanter was lower in group B (p=0.003, p<0.001, respectively). The lever arm distance was lower in group C (p<0.001). A varus stem position was more frequently observed in group B (p<0.001). There were no intra- or post-operative fractures in group A, although there were five intra-operative fractures in the other groups plus two post-operative fractures in group B and four in group C. The rate of dislocation was similar among groups and was the most frequent cause for revision surgery (8 hips for the whole series). The mean post-operative clinical score improved in all groups. The overall survival rate for revision for any cause at 120 months was 88.4% (95% CI 78.8–98), being 97.8% (95% CI 95.2–100) for group A, 81.8% (95% CI 64.8–98.8) for group B and 95.3% (95% CI 91.1–99.6) for group C (log Rank: 0.416). Five hips were revised for loosening. The overall survival rate for loosening at 120 months was 91.9% (95% CI 81.7–100), being 99.2%(95% CI 97.6–100) for group A, 85.5 (95% CI 69.9 −100) for group B and 100% for group C (Log Rank 0.093). Conclusions. Despite a more osteopenic bone in the cemented group, the rate of peri-prosthetic fractures was higher after uncemented THR in patients older than 75 years. Although the overall outcome is good with both types of fixation, the post-operative reconstruction of the hip, which might be more reliable after cemented fixation, may affect the rate of complications in this population


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_34 | Pages 120 - 120
1 Dec 2013
Lim S Lim BH Lee KH Ko KR Moon Y Park Y
Full Access

Introduction:. The outcome of previous cemented total hip arthroplasty has been reported to be inferior in renal transplant patients because of poor bone stock resulting from long-term steroid use. Moreover, as renal transplant patients remain on immunosuppressant therapy for life, higher levels of overall morbidity must be considered. We evaluated the mid-term results of cementless total hip arthroplasty in renal transplant recipients with osteonecrosis of the femoral head, and compared those with age and sex matched osteonecrosis patients that had not undergone organ transplantation or been treated with long-term steroid. Materials & Methods:. Between October 1997 and October 2008, 45 consecutive primary cementless total hip arthroplasties were performed in 30 patients with advanced osteonecrosis of the femoral head after renal transplantation. There were 18 males (27 hips) and 12 females (18 hips) of overall mean age 44 years (22 to 68). The clinical and radiographic results of cementless total hip arthroplasty in these 45 hips were compared with those of 96 sex and age-matched osteonecrotic hips of 72 patients that had not undergone organ transplantation or long-term steroid use. Patients were evaluated at surgery and at a mean of 7.2 years (range, 2–13 years) postoperatively. Results:. The mean Harris hip score of patients improved from 48 points preoperatively to 94 points at last follow-up (p < 0.05). Three hips in patient group had massive osteolysis with polyethylene wear requiring revision surgery. One hip in the patient group underwent revision surgery because of recurrent dislocation at 11 years postoperatively. No intergroup differences in overall rates of complications or revisions were observed. However, patients had a significantly higher rate of ectopic ossification. Conclusion:. Despite diffuse osteopenia and chronic immunosuppression in renal transplant patients with osteonecrotic hips, contemporary cementless total hip arthroplasty showed durable implant fixation to bone and did not increase complications


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_1 | Pages 20 - 20
1 Jan 2013
Ahmed N Mcc Onnell B Prasad K Gakhar H Lewis P Wardal P Zafiropoulos G
Full Access

Background. Ultrasound and MRI are recommended tools in evaluating postoperative pain in metal-on-metal hip (MoM) arthroplasty. Aim. To retrospectively compare MRI and ultrasound results of the hip with histopathology results in failed (MoM) hip arthroplasty. Methods. 25 hips (16 patients) who underwent revision hip surgery for painful (MoM) hip replacement/resurfacing were included in this study (March 2011 to May 2012). Average age 50.4 yrs (37–69y). Blood test for cobalt and chromium levels, ultrasound and MRI were done prior to revision surgery. 23 hips had ultrasound scan. 21 of these hips also had MRI scan prior to surgery. Scans were done at an average of 50 months from primary metal-on-metal surgery. All the ultrasound & MRI were done and reported by a single musculo-skeletal radiologist. During surgery multiple tissue samples were taken from acetabulum, capsule as well as tissue surrounding the femoral neck and sent for histopathology. 21 hip histopathology results were positive for metalosis. 2 hip histopathology results were negative for metalosis. Metalosis as defined by our histopathologist as that which is showing the presence of sheets of macrophages with dark brown pigmentation in their cytoplasm under polarized light. Results. Ultrasound examination was positive for fluid collection in 18 (78.2%). MRI was positive in 16 (76.1%). 4 patients (19%) had negative ultrasound and MRI results but were revised due to pain and were found to have histopathology positive metalosis. One patient had ultrasound positive for fluid collection with negative MRI. One patient was MRI positive for fluid but normal ultrasound findings. Conclusion. Although ultrasound and MRI are useful in screening of MoM patients still there are a significant percentage of hips, which failed with negative radiology findings


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 394 - 394
1 Sep 2012
Stoeckl B
Full Access

Introduction. Total femur implantation is a rare and challenging procedure in final revision surgery of hip and knee arthroplasties. Reports of this operation technique are even rare in literature. In this study we retrospectively analyse our patients with total femur implants. Material and Methods. Between October 2002 and February 2009 we implanted 27 total femurs in hip and knee revision surgery cases. We used the modular prosthesis system–Megasystem C® by Waldemar Link–in all cases. Our 22 female and 5 male patients had a mean age of 76 years (range 45–88). Indications for the procedure were loosening of megaprosthesis of the hip in 12 cases; 2 with massive distal migration, 1 with penetration into the knee joint and 1 after two step revision procedure. In 13 cases a periprosthetic indicated a total femur implanatation due to massive bone loss; 1 breakage of a long femoral stem, 5 fracture of osteosynthesis materials, 3 after prosthesis revisions and 1 pseudoarhrosis of femur and tibia after knee arthroplasty. We analysed perioperative complications, clinical status and result and further revision within follow up time. Results. We were able to examine 16 patients at follow up time. Eight patients were lost to follow up and 2 have been died; 1 after fulminant pulmonal embolia after operation and 1 four years postoperatively. One total femur had to be exchanged due to infection after 1 year. Perioperative complications occurred as follows: 1 massive blood transfusion, 1 peroneal palsy, 1 ulcus ventriculis bleeding, 1 thrombosis of vena suclavia and vena jugularis, 1 sigmaresection due to diverticulosis, 1 luxations of the hip, and 2 wound necrosis. In 3 caese a revision operation swas performed; 1multiple luxtion of the hip and due to infection of the total femur implant. The range of motion of the hip was 85 degrees (range 30–90) and knee 92 degrees (range 30–110). In nearly all cases we found a lengthening of the revised limb. The general outcome of the patients was. Ten patient were very satisfied, 2 statisfied and 2 fair due to pain persistence. Two patient were mobile with one crutch, 3 used two crutches and one was able to walk with a rollator. One patient was unable to walk due to diplegia after spine fracture. Conclusion. Total femur procedure in final revision arthroplasty has a high potential of perioperative risks but has shown good clinical and mobility results in our patient group. With the Megasystem C® by Link we had a save and good performance while operation of this difficult patient group


The Bone & Joint Journal
Vol. 101-B, Issue 4 | Pages 403 - 414
1 Apr 2019
Lerch TD Vuilleumier S Schmaranzer F Ziebarth K Steppacher SD Tannast M Siebenrock KA

Aims

The modified Dunn procedure has the potential to restore the anatomy in hips with severe slipped capital femoral epiphyses (SCFE). However, there is a risk of developing avascular necrosis of the femoral head (AVN). In this paper, we report on clinical outcome, radiological outcome, AVN rate and complications, and the cumulative survivorship at long-term follow-up in patients undergoing the modified Dunn procedure for severe SCFE.

Patients and Methods

We performed a retrospective analysis involving 46 hips in 46 patients treated with a modified Dunn procedure for severe SCFE (slip angle > 60°) between 1999 and 2016. At nine-year-follow-up, 40 hips were available for clinical and radiological examination. Mean preoperative age was 13 years, and 14 hips (30%) presented with unstable slips. Mean preoperative slip angle was 64°. Kaplan–Meier survivorship was calculated.


Orthopaedic Proceedings
Vol. 90-B, Issue SUPP_III | Pages 546 - 547
1 Aug 2008
Kotwal R Ganapathi M John A Maheson M Jones S
Full Access

Aim: To determine the outcome and need for subsequent surgery in patients following successful closed reduction of dislocation after primary total hip arthroplasty (THA) and the financial implications of re-operation. Methods: Data was retrospectively obtained from radiographs and patient case notes for all dislocated primary hip replacements presenting to the University Hospital of Wales from January 2000 till November 2005. Records were analysed with a minimum of 1 year follow-up to determine the outcome and need for subsequent surgery following successful closed reduction of dislocation after primary THA. Factors studied include age at primary surgery, indications, components, approach, head size, duration since surgery and direction of dislocation. Results: Over the 6 year study period, 98 patients presented with 100 first time dislocated primary total hip replacements. All the dislocations underwent successful closed reduction. 62 (62%) hips re-dislocated more that once. At minimum follow up of 1 year, 7 patients had died and were excluded from the final study group. Of the remaining 93 hips, 46 patients have had no further surgery. 44 THA’s have undergone revision procedures and 3 are waiting to have revision surgery (51% in total). Of those who have undergone revision surgery, 7 hips re-dislocated since and 3 of those needed further re-revision. Discussion: Dislocation following primary THA remains a problem with varying dislocation rates quoted in the literature. In our series, 51% of patients presenting with dislocation required revision surgery. All patients in this series had 28 mm or smaller femoral heads. The financial impact of the burden of revision surgery continues to increase. In this series in isolation the cost of revision surgery totalled greater that £500,000