Cementing a collarless polished tapered femoral stem through the anterior approach

2021 ◽  
Vol 103-B (7 Supple B) ◽  
pp. 46-52
Author(s):  
Niall P. McGoldrick ◽  
Daniel Fischman ◽  
Graeme M. Nicol ◽  
Cheryl Kreviazuk ◽  
George Grammatopoulos ◽  
...  
Keyword(s):  
Anterior Approach ◽  
Posterior Approach ◽  
Femoral Stem ◽  
Cement Mantle ◽  
Posterior Group ◽  
Type C ◽  
The Mean ◽  
Hip Arthroplasties ◽  
Anterior Group

Aims The aim of this study was to radiologically evaluate the quality of cement mantle and alignment achieved with a polished tapered cemented femoral stem inserted through the anterior approach and compared with the posterior approach. Methods A comparative retrospective study of 115 consecutive hybrid total hip arthroplasties or cemented hemiarthroplasties in 110 patients, performed through anterior (n = 58) or posterior approach (n = 57) using a collarless polished taper-slip femoral stem, was conducted. Cement mantle quality and thickness were assessed in both planes. Radiological outcomes were compared between groups. Results No significant differences were identified between groups in Barrack grade on the anteroposterior (AP) (p = 0.640) or lateral views (p = 0.306), or for alignment on the AP (p = 0.603) or lateral views (p = 0.254). An adequate cement mantle (Barrack A or B) was achieved in 77.6% (anterior group, n = 45) and in 86% (posterior group, n = 49), respectively. Multivariate analysis revealed factors associated with unsatisfactory cement mantle (Barrack C or D) included higher BMI, left side, and Dorr Type C morphology. A mean cement mantle thickness of ≥ 2 mm was achieved in all Gruen zones for both approaches. The mean cement mantle was thicker in zone 7 (p < 0.001) and thinner in zone 9 for the anterior approach (p = 0.032). Incidence of cement mantle defects between groups was similar (6.9% (n = 4) vs 8.8% (n = 5), respectively; p = 0.489). Conclusion An adequate cement mantle and good alignment can be achieved using a collarless polished tapered femoral component inserted through the anterior approach. Cite this article: Bone Joint J 2021;103-B(7 Supple B):46–52.

scholarly journals A Clinicoradiological Assessment following Surgical Intervention in Patients of Cervical Spondylotic Myelopathy: An Institutional Experience

2021 ◽  
Author(s):  
Maneet Gill ◽  
Vikas Maheshwari ◽  
Arun Kumar Yadav ◽  
Rushikesh Gadhavi
Keyword(s):  
Cervical Spondylotic Myelopathy ◽  
Anterior Approach ◽  
Posterior Approach ◽  
Surgical Intervention ◽  
Japanese Orthopaedic Association ◽  
Surgical Decompression ◽  
Functional Improvement ◽  
Male Predominance ◽  
Canal Diameter ◽  
Posterior Group

Abstract Introduction  To critically analyze the functional and radiological improvement in patients of cervical spondylotic myelopathy (CSM) who underwent surgical decompression by an anterior or posterior approach. Materials and Methods  A retrospective study was conducted in a tertiary-level Armed Forces Hospital from June 2015 to December 2019. Preoperative assessment included a thorough clinical examination and functional and radiological assessment. The surgical decompression was done by an anterior or a posterior approach with instrumented fusion. Anterior approach was taken for single or two-level involvement and posterior approach for three or more cervical levels. The pre and postoperative neurological outcome was assessed by Nurick and modified Japanese Orthopaedic Association (mJOA) score along with measurement of canal diameter and cross-sectional area. Results  A total of 120 patients of CSM who underwent surgical decompression were analyzed. Both the groups were comparable and had male predominance. A total of 59 patients underwent surgical decompression by an anterior approach and the remaining 61 patients by the posterior approach. Out of the 59 patients operated by the anterior approach, 30 (50.85%) underwent anterior cervical discectomy and fusion (ACDF); remaining 29 (49.15%) underwent anterior cervical corpectomy and fusion (ACCF). In the posterior group (n = 61), 26 (42.6%) patients underwent laminoplasty and the remaining 35 (57.4%) underwent laminectomy with or without instrument fusion. Sixteen patients out of these underwent lateral mass fixation and the remaining 19 underwent laminectomy. There was functional improvement (mJOA and Nurick grade) and radiological improvement in both subgroups, which were statistically significant (p < 0.0001). Conclusion  A prompt surgical intervention in moderate-to-severe cases of CSM either by the anterior or the posterior approach is essential for good outcome.

scholarly journals A Prospective Study of Posterior (Transpedicular) Approach versus Anterior (Transthoracic/Thoracoabdominal) Approach for Posttraumatic Compression Fracture of Thoracolumbar Vertebra in a Tertiary Care Center: Comparison of Clinical and Radiological Outcomes

2020 ◽  
Author(s):  
Rahul Varshney ◽  
Parthasarathi Datta ◽  
Pulak Deb ◽  
Santanu Ghosh
Keyword(s):  
Prospective Study ◽  
Posterior Approach ◽  
Spinal Injuries ◽  
Anterolateral Approach ◽  
Kyphotic Angle ◽  
Posterior Group ◽  
Thoracoabdominal Approach ◽  
A Prospective Study ◽  
Anterior Group

Abstract Objective The aim of this article was to analyze the clinical and radiological outcomes of transpedicular decompression (posterior approach) and anterolateral approach in patients with traumatic thoracolumbar spinal injuries. Methods  It was a prospective study of patients with fractures of dorsolumbar spine from December 2011 to December 2013. A total of 60 patients with traumatic spinal injuries were admitted during the study period (December 2011–2013), of which 51 cases were finally selected and taken for operations while 3 were eventually lost in follow-up. Twenty patients were operated by anterolateral approach, titanium mesh cage, and fixation with bicortical screws. Twenty-eight patients were treated with posterior approach and transpedicular screw fixation. Clinical and radiographic evaluations were performed on all 48 patients before and after surgery. Results There were 48 patients of thoracolumbar burst fractures with 40 male and 8 female patients. Range of follow-up was from 1 month to 20 months, with a mean of 7.4. Preoperatively in anterior group, 65% of the patients were bed ridden, 20% patients were able to walk with support, and 15% of the patients were able to walk without support. In posterior group, 78.57% patients were bed ridden, 10.71% were able to walk with support, and 10.71% patients were able to walk without support. Kyphotic angle changes were seen in 16 patients out of 18 in anterior group and 20 patients in posterior group out of 25. Out of 18 patients in anterior group, 14 showed reduction in kyphotic angle of 10 to 100 (improvement), with mean improvement of 4.070. In posterior group, 7 patients showed improvement of 10 to 80 (reduction in kyphotic angle) whereas 13 patients showed deterioration of 1 to 120. The mean improvement was 2.140 in 7 patients and mean deterioration was 4.920. No statistical difference was found (p > 0.05) regarding improvement in urinary incontinence during the follow-up period. Conclusion There are significant differences in anterior and posterior approaches in terms of clinical improvement. Compared with posterior approach, the anterolateral approach can reduce fusion segment and well maintain the kyphosis correction. The selection of treatment should be based on clinical and radiological findings, including neurological deficit.

BIOMECHANICAL RATIONALE FOR CHOICE OF CEMENT MANTLE THICKNESS AROUND A FEMORAL STEM

2018 ◽  
Vol 18 (06) ◽  
pp. 1850064
Author(s):  
IEVGEN LEVADNYI ◽  
JAN AWREJCEWICZ ◽  
OLGA SZYMANOWSKA ◽  
DARIUSZ GRZELCZYK ◽  
JOSÉ EDUARDO GUBAUA ◽  
...  
Keyword(s):  
Bone Density ◽  
Femoral Stem ◽  
Peak Stress ◽  
Proximal Part ◽  
Cement Mantle ◽  
Bone Adaptation ◽  
Replacement Surgery ◽  
Hip Replacement Surgery ◽  
High Reduction ◽  
Hip Arthroplasties

The change in mechanical properties of the femoral bone tissue surrounding hip endoprosthesis stems during the post-operative period is one of the causes of implant instability, and the mathematical description of this phenomenon is the subject of much research. In the present study, a model of bone adaptation, based on isotropic Stanford theory, is created for further computer investigation. The results of implementation of such a mathematical model are presented regarding the choice of cement mantle rational thickness in cemented hip arthroplasties. The results show that for cement mantle thicknesses ranging from 1–1.5[Formula: see text]mm, a peak stress value in the proximal part of the mantle exceeds the limit of durability of bone cement. Moreover, results show that high reduction in the bone density of distal and proximal regions was observed in cases of cement mantle thicknesses varying from 1–3[Formula: see text]mm. No significant changes in bone density of the abovementioned regions were obtained for 4[Formula: see text]mm and 5[Formula: see text]mm. The outcome of numerical investigations can be treated as valuable and will lead to the improvement of cemented hip replacement surgery results.

Hydroxyapatite-Coated Femoral Stem Survivorship at 10 Years

2005 ◽  
Vol 284-286 ◽  
pp. 1069-0 ◽  
Author(s):  
Gregory Y. Lee ◽  
Ajay Srivastava ◽  
Darryl D. D'Lima ◽  
Pam Pulido ◽  
Clifford W. Colwell
Keyword(s):  
Polyethylene Wear ◽  
Femoral Stem ◽  
Senior Author ◽  
Independent Observer ◽  
Long Term Follow Up ◽  
The Mean ◽  
Lost To Follow Up ◽  
Hip Arthroplasties

The Omnifit-HA femoral stem component has shown excellent results in early clinical studies. This is an independent prospective study of the outcome of a ydroxyapatite-coated femoral component implanted by one surgeon with an intermediate-term follow up. The senior author performed 103 consecutive uncemented total hip arthroplasties in 96 patients from July 1991 to December 1996. The components implanted were the Omnifit-HA femoral stem and the Omnifit PSL porous-coated acetabular shell. The mean age at the time of the index procedure was 52 years old (range, 27–78) and male:female ratio was 54:42. Three patients were deceased and four patients were lost to follow-up. The mean follow up was 10.3 years (range, 7.3–12.7 years). Clinical and radiographic evaluations were performed by an independent observer. The average preoperative and postoperative Harris Hip Scores were 55 and 92, respectively. The overall survivorship of the Omnifit-HA stem was 100% with no femoral revisions. The survivorship of the Omnifit PSL cup was 89.7% with 4 acetabular revisions for aseptic loosening and 6 polyethelene liner exchanges for osteolysis or late instability. The mean polyethylene wear rate was 0.24 mm per year. This long-term follow up shows that the use of circumferentially coated hydroxyapatite stems can protect against the migration of wear debris along the femoral stem.

scholarly journals Catastrophic Failure and Metallosis of the Acetabular Component in Total Hip Arthroplasty

2021 ◽  
Author(s):  
FIRAT OZAN ◽  
Murat Kahraman ◽  
Ali Baktır ◽  
Kürşat Gençer
Keyword(s):  
Revision Arthroplasty ◽  
Femoral Stem ◽  
Harris Hip Score ◽  
Catastrophic Failure ◽  
Total Hip ◽  
Catastrophic Failures ◽  
Revision Tha ◽  
The Mean ◽  
Hip Arthroplasties

Abstract Background: To evaluate the clinical features and results of the revision total hip arthroplasties (THA) in patients with catastrophic failures and metallosis. Methods: Fifteen hips of 14 patients with catastrophic failure and metallosis in hip arthroplasties were evaluated. They were followed for at least 4.2 years after the revision THA. Clinical evaluation was performed using Harris hip score. Osteolysis, loosening or presence of metallosis was evaluated with standard radiographs. Metallosis was evaluated intraoperatively according to the metallosis severity classification. Results: The mean time from failure until revision surgery was 9.4 years. It was observed that in the primary THA, metal-on-ceramic (MoC), ceramic-on-ceramic (CoC) and metal-on-conventional polyethylene (MoCPE) bearings were used in 1, 3 and 11 hips, respectively. Grade III metallosis was observed in all patients during revision surgeries. The mean Harris hip score increased from 55 points before revision THA to 75 points at the final follow-up. In revision arthroplasty, MoCPE and CoC bearings were used in 13 and 2 hips, respectively. The femoral stem was replaced in 5 hips. All acetabular cups, except that of one hip, were revised. Conclusions: Revisions of THAs with catastrophic failures and metallosis are quite challenging. Routine follow-up of arthroplasty patients is beneficial to examine for osteolysis, loosening, and asymmetric wear.

scholarly journals Surgical management and follow up of patients with bile duct injuries in tertiary health care institute

2021 ◽  
Vol 8 (3) ◽  
pp. 954
Author(s):  
Shahnawaz Akram ◽  
Sadaf Ali ◽  
Omer Javid Shah ◽  
Anzar Santosh
Keyword(s):  
Bile Duct ◽  
Bile Duct Injury ◽  
Type D ◽  
Bile Duct Injuries ◽  
Definitive Repair ◽  
Type C ◽  
The Mean ◽  
Surgical Unit

Background: Bile duct injury is an iatrogenic catastrophe associated with significant mortality, morbidity, decrease quality of life and higher rates of subsequent litigation. We conducted a study to analyse the presentation and pattern of bile duct injury managed at our surgical unit. Operative details, type of surgery, complications associated with the repair and Follow up in terms of liver function tests.Methods: The study included evaluation of 56 patients who had suffered bile duct injuries and then were subsequently being managed surgically at our institute retrospectively from October-2009 to 2012 and prospectively onwards till October- 2014. The mean follow up period in case of our study was 26.8 months. The follow up LFTs were performed at regular intervals. MRCP was used as a gold standard investigation.Results: jaundice (64.2%) was the most common presentation. Injuries noted were, type E1 in 16 (28.5%),type E2 in 11(19.6%), type E3 in 1 (1.8%), type A in 2 (3.6%), type B in 3 (5.4%), type C in 5 (9%) and type D in 18 (32.1%) of patients. Roux-en-y Hepatico-jejunostomy was the common definitive repair performed (85.7%) with various modifications. The mean bilirubin levels and ALP levels showed a downward trend in follow up .5 patients were readmitted with features of cholangitis in which 2 patients were reoperated and 3 patients were managed conservatively, 2 patients died.Conclusions: The management of patients with BDI is a challenge for a surgeon and often requires the skills of experienced hepatobiliary surgeons at tertiary referral canters.  

scholarly journals Does the line-to-line cementing technique of the femoral stem create an adequate cement mantle?

2020 ◽  
pp. 112070002093436
Author(s):  
Kirsti Sevaldsen ◽  
Otto S Husby ◽  
Øystein B Lian ◽  
Vigdis S Husby
Keyword(s):  
Femoral Stem ◽  
Cement Mantle ◽  
Cementing Technique ◽  
Early Failure ◽  
Advantages And Disadvantages ◽  
Press Fit ◽  
The Relationship ◽  
French Paradox

Background: The line-to-line cementing technique is proposed to create a press-fit in the femoral canal, which is contrary to modern cementing techniques. The term ‘French paradox’ has been used to describe the acceptable results associated with this technique. It has been suggested that the quality of the mantle may not be satisfactory, predisposing to early failure and aseptic loosening. Methods: The line-to-line cementing technique, where the femoral stem was oversized by 1 size compared to the broach, was compared to the standard cementing technique using corresponding sized broaches and stems, in 6 pairs of human cadaver femora with taper-slip design C-stems. Cement pressure was measured, and cement mantle thickness was analysed. A mixed effects model with random intercepts was used to examine the relationship between thickness of mantle and cementing technique and between pressure and cementing technique. Results: Line-to-line cementing results in significantly higher pressurisation for longer periods of time leading to better interdigitation but a thinner mantle in some areas. Conclusions: The results of this study describe the in-vitro advantages and disadvantages of the line-to-line cementing technique.

scholarly journals Primary Total hip Arthroplasty Using A Short Bone-Conserving Stem in Young Adult Osteoporotic Patients with Dorr type C Femoral Bone

2020 ◽  
Author(s):  
Ping Zhen ◽  
Yanfeng Chang ◽  
Heng Yue ◽  
Hui Chen ◽  
Shenghu Zhou ◽  
...  
Keyword(s):  
Young Adult ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
Femoral Canal ◽  
Femoral Bone ◽  
Severe Osteoporosis ◽  
Type C ◽  
The Mean ◽  
Hip Arthroplasties

Abstract Background: Dorr Type C femoral bone exhibits a wide, stovepipe-shaped femoral canal and thin cortices in the proximal femur. Dorr C bone combined with severe osteoporosis is an important challenge in primary hip arthroplasty. In this study, we assessed the effects of short metaphyseal fitting cementless stems on preformatted primary total hip arthroplasties in young adult osteoporotic patients with this femoral presentation.Methods: A total of 42 hip arthroplasties were performed in 35 young patients (range, 20 to 36 years) using a short Tri-lock bone preservation metaphyseal-fitting cementless femoral component between 2012 and 2017. The mean age at surgery of the 27 male (33 hips) and 8 female (9 hips) patients was 27.5 ± 3.7 years (range 20.3 to 35.8 years). The mean body mass index (BMI) was 20.2 kg/m2 (range, 16.8–23.2 kg/m2). According to Dorr’s criteria, all 42 femora were classified as type C bone and all femurs suffered from severe osteoporosis (Singh index≤3). Results: The mean follow-up period was 5.5 ± 1.1 years (range, 3.0–8.0 years). The clinical and functional results improved for the Harris hip score, WOMAC, and UCLA activity scores. The Harris Hip score improved from 48.0 ± 8.0 (range 38.0 to 61.0) preoperatively to 87.0 ± 9.0 (range 77.0 to 92.0) at 12 months after surgery and 91.0 ± 8.0 (range 85.0 to 98.0) at final follow-up. The preoperative UCLA activity score was 3.0±0.5 points (range, 1.0–4.0 points), which significantly improved to 7.5±0.7 points (range, 6.0–8.0 points) at the final follow-up. No patient exhibited thigh pain at the final follow-up. The mean stem-to-canal fill percentages were 97% ± 2.1% (anteroposterior view at midstem). For stem alignment, 40 hips (95.2%) of the femoral stem were positioned neutral to 3° of varus with reference to the femoral shaft axis. The remaining two were positioned at 4° varus to 4° valgus. Radiographic evaluation showed good osteointegration of the implants in follow-up.Conclusions: Based on the tapered-wedge design and proximal porous coating, the shortened tapered conventional stem can achieve reliable stability through neck filling and metaphyseal fixation, which does not depend on the isthmus hoop stress. This stem was suitable in severe osteoporotic patients with Type C bones in young adults who presented with a correspondingly straightened femoral canal with a wide isthmus and thin cortex.

scholarly journals Catastrophic failure and metallosis of the acetabular component in total hip arthroplasty

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Fırat Ozan ◽  
Murat Kahraman ◽  
Ali Baktır ◽  
Kürşat Gençer
Keyword(s):  
Revision Arthroplasty ◽  
Femoral Stem ◽  
Harris Hip Score ◽  
Catastrophic Failure ◽  
Total Hip ◽  
Catastrophic Failures ◽  
Revision Tha ◽  
The Mean ◽  
Hip Arthroplasties

Abstract Background To evaluate the clinical features and results of the revision total hip arthroplasties (THA) in patients with catastrophic failures and metallosis. Methods Fifteen hips of 14 patients with catastrophic failure and metallosis in hip arthroplasties were evaluated. They were followed for at least 4.2 years after the revision THA. Clinical evaluation was performed using Harris hip score. Osteolysis, loosening or presence of metallosis was evaluated with standard radiographs. Metallosis was evaluated intraoperatively according to the metallosis severity classification. Results The mean time from failure until revision surgery was 9.4 years. It was observed that in the primary THA, metal-on-ceramic (MoC), ceramic-on-ceramic (CoC) and metal-on-conventional polyethylene (MoCPE) bearings were used in 1, 3 and 11 hips, respectively. Grade III metallosis was observed in all patients during revision surgeries. The mean Harris hip score increased from 55 points before revision THA to 75 points at the final follow-up. In revision arthroplasty, MoCPE and CoC bearings were used in 13 and 2 hips, respectively. The femoral stem was replaced in 5 hips. All acetabular cups, except that of one hip, were revised. Conclusions Revisions of THAs with catastrophic failures and metallosis are quite challenging. Routine follow-up of arthroplasty patients is beneficial to examine for osteolysis, loosening, and asymmetric wear.

scholarly journals Primary total hip arthroplasty using a short bone-conserving stem in young adult osteoporotic patients with Dorr type C femoral bone

2020 ◽  
Author(s):  
Ping Zhen ◽  
Yanfeng Chang ◽  
Heng Yue ◽  
Hui Chen ◽  
Shenghu Zhou ◽  
...  
Keyword(s):  
Young Adult ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
Femoral Canal ◽  
Femoral Bone ◽  
Severe Osteoporosis ◽  
Type C ◽  
The Mean ◽  
Hip Arthroplasties

Abstract BackgroundDorr Type C femoral bone exhibits a wide, stovepipe-shaped femoral canal and thin cortices in the proximal femur. Dorr C bone combined with severe osteoporosis is an important challenge in primary hip arthroplasty. In this study, we assessed the effects of short metaphyseal fitting cementless stems on preformatted primary total hip arthroplasties in young adult osteoporotic patients with this femoral presentation.MethodsA total of 42 hip arthroplasties were performed in 35 young patients (range 20 to 36 years) using a short Tri-lock bone preservation metaphyseal-fitting cementless femoral component between 2012 and 2017. The mean age at surgery of the 27 male (33 hips) and 8 female (9 hips) patients was 27.5 years (range 20.3 to 35.8 years). The mean body mass index (BMI) was 20.2 kg/m 2 (range, 16.8-23.2 kg/m 2 ). According to Dorr’s criteria, all 42 femora were classified as type C bone and all femurs suffered from severe osteoporosis (Singh index≤3).ResultsThe mean follow-up period was 5.5 years (range 3.0 to 8.0 years). The clinical and functional results improved for the Harris hip score, WOMAC, and UCLA activity scores. The Harris Hip score improved from 48.0 ± 8.0 (range 38.0 to 61.0) preoperatively to 87.0 ± 9.0 (range 77.0 to 92.0) at 12 months after surgery and 91.0 ± 8.0 (range 85.0 to 98.0) at final follow-up. The preoperative UCLA activity score was 3.0 ± 0.5 points (range, 1.0-4.0 points), which significantly improved to 7.5 ± 0.7 points (range 6.0 to 8.0 points) at the final follow-up. No patient exhibited thigh pain at the final follow-up. The mean stem-to-canal fill percentages were 97% ± 2.1% (anteroposterior view at midstem). For stem alignment, 40 hips (95.2%) of the femoral stem were positioned neutrally to 3° of varus with reference to the femoral shaft axis. The remaining two were positioned at 4° varus to 4° valgus. Radiographic evaluation showed good osteointegration of the implants in follow-up.ConclusionsBased on the tapered-wedge design and proximal porous coating, the shortened tapered conventional stem can achieve reliable stability through neck filling and metaphyseal fixation, which does not depend on the isthmus hoop stress. This stem was suitable in severe osteoporotic patients with Type C bones in young adults who presented with a correspondingly straightened femoral canal with a wide isthmus and thin cortex.

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