10 results on '"Nawaz SZ"'
Search Results
2. Displaced intracapsular neck of femur fractures: Outcome of 810 hydroxyapetite coated (HAC) uncemented hemiarthroplasties.
- Author
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Nawaz SZ, Keightley AJ, Desai A, Granville-Chapman J, Elliott D, Newman K, and Khaleel A
- Subjects
- Aged, Aged, 80 and over, Australia epidemiology, Biocompatible Materials therapeutic use, Bone Cements therapeutic use, Cementation adverse effects, Female, Femoral Neck Fractures mortality, Femoral Neck Fractures physiopathology, Follow-Up Studies, Hip Prosthesis, Humans, Male, Periprosthetic Fractures mortality, Periprosthetic Fractures physiopathology, Practice Guidelines as Topic, Prospective Studies, Reoperation mortality, Treatment Outcome, Durapatite therapeutic use, Femoral Neck Fractures surgery, Hemiarthroplasty instrumentation, Hemiarthroplasty mortality, Periprosthetic Fractures surgery, Reoperation statistics & numerical data
- Abstract
A Cochrane review influenced new NICE guidelines, which recommended surgeons: Offer cemented implants to patients undergoing surgery with arthroplasty. However our trust routinely uses HAC uncemented stem (Taperloc
® , Biomet) hemiarthroplasties. A review of a consecutive series of uncemented HAC stem hemiarthroplasties including measures such as intro-operative complications, mortality and revision surgery. Prospectively collected data between January 2008 and June 2014 was used, with medical record and radiographic reviews performed. 810 consecutive Taperloc uncemented hemiarthroplasty with monopolar heads were performed in 763 patients, with a minimum 12 month follow-up (12-90) follow-up. Mean age 83yrs; 71% female. Meantime to operation was 28.5h. 30day mortality: 4.4% (33/763). One year mortality was 11.2% (89/763). 2.5% (20/810) were admitted on a separate admission with the periprosthetic fracture. 0.6% (5/810) were revised to total hip replacement for subsidence and associated pain. Only 1% (8/810) had intraoperative calcar fractures, all of which were treated with intraoperative cabling with no evidence of clinically relevant subsidence or medium term complications requiring revision surgery within a year. To the author's knowledge this is largest outcome series for modern design uncemented hemiarthroplasty. Our study shows comparable data to cemented hemiarthroplasty but no deaths in the first 2days post-op. Our series also demonstrates a well below average mortality figures which are clearly multifactorial but believe uncemented prosthesis play a role. We believe that uncemented proven stem design hemiarthroplasty remains a safe and good surgical option for displaced intracapsular fractures., (Crown Copyright © 2016. Published by Elsevier Ltd. All rights reserved.)- Published
- 2017
- Full Text
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3. A new assessment for syndesmosis injury - The 'Chertsey test'.
- Author
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Boyd RP, Nawaz SZ, and Khaleel A
- Subjects
- Ankle Injuries complications, Ankle Injuries surgery, Bone Screws, Fracture Fixation, Internal adverse effects, Humans, Lateral Ligament, Ankle physiopathology, Lateral Ligament, Ankle surgery, Rotation, Treatment Outcome, Ankle Injuries diagnostic imaging, Fracture Fixation, Internal methods, Joint Instability diagnostic imaging, Lateral Ligament, Ankle diagnostic imaging, Tomography, X-Ray Computed
- Abstract
Introduction: If a syndesmosis injury is not detected, or not treated appropriately, it can lead to pain and arthritis. Various techniques have been described to look for the presence of a syndemosis injury. If concern is raised regarding malreduction, the most recognised way of checking accuracy of the reduction (of the fibula into the incisura) is bilateral postoperative ankle CT scans. This not only exposes the patient to further radiation, but can normally only be done once the surgery is completed and so if adjustment is needed, this requires a further operation, encompassing further surgical risks. We developed a simple assessment, which both gives accurate intra-operative demonstration of an injury to the syndesmosis and also can check how well the fibula has been reduced (if required), without the need for further radiological investigation or surgical intervention. The objectives were to test how easy it was to perform the test and apply it to a number of different ankle fractures., Methods: Peri-operatively, 2-4ml of contrast medium was injected into the ankle joint in cases where there was concern about injury to the syndesmosis. If there was a 'positive' test, and a 'blush' of dye leaked into the surrounding soft tissues, then fixation of the syndesmosis was performed (as per the surgeon's preferred technique). After fixation was completed, a further injection of contrast medium was injected to see if the fibular had been anatomically reduced into its incisura. The test was performed on 15 ankles., Results: There were no difficulties in performing the test and no complications reported. The test clearly demonstrated where there had been an injury to the syndesmosis and also confirmed the accurate reduction of the fibula when there had been stabilisation of the syndesmosis., Conclusions: It has proved to be an easy and reliable adjunct to ankle fixation surgery and may have further indications., (Copyright © 2016 Elsevier Ltd. All rights reserved.)
- Published
- 2016
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4. Ilizarov management of Schatzker IV to VI fractures of the tibial plateau: 105 fractures at a mean follow-up of 7.8 years.
- Author
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Keightley AJ, Nawaz SZ, Jacob JT, Unnithan A, Elliott DS, and Khaleel A
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Female, Follow-Up Studies, Fracture Healing, Humans, Male, Middle Aged, Retrospective Studies, Tibial Fractures diagnostic imaging, Time Factors, Tomography, X-Ray Computed, Treatment Outcome, Young Adult, External Fixators, Ilizarov Technique instrumentation, Tibial Fractures surgery
- Abstract
This study aimed to determine the long-term functional, clinical and radiological outcomes in patients with Schatzker IV to VI fractures of the tibial plateau treated with an Ilizarov frame. Clinical, functional and radiological assessment was carried out at a minimum of one year post-operatively. A cohort of 105 patients (62 men, 43 women) with a mean age of 49 years (15 to 87) and a mean follow-up of 7.8 years (1 to 19) were reviewed. There were 18 type IV, 10 type V and 77 type VI fractures. All fractures united with a mean time to union of 20.1 weeks (10.6 to 42.3). No patient developed a deep infection. The median range of movement (ROM) of the knee was 110(°) and the median Iowa score was 85. Our study demonstrates good long-term functional outcome with no deep infection; spanning the knee had no detrimental effect on the ROM or functional outcome. High-energy fractures of the tibial plateau may be treated effectively with a fine wire Ilizarov fixator., (©2015 The British Editorial Society of Bone & Joint Surgery.)
- Published
- 2015
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5. Outcome of combined autologous chondrocyte implantation and anterior cruciate ligament reconstruction.
- Author
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Dhinsa BS, Nawaz SZ, Gallagher KR, Skinner J, Briggs T, and Bentley G
- Abstract
Background: Instability of the knee joint, after anterior cruciate ligament (ACL) injury, is contraindication to osteochondral defect repair. This prospective study is to investigate the role of combined autologous chondrocyte implantation (ACI) with ACL reconstruction., Materials and Methods: Three independent groups of patients with previous ACL injuries undergoing ACI were identified and prospectively followed up. The first group had ACI in combination with ACL reconstruction (combined group); the 2(nd) group consisted of individuals who had an ACI procedure having had a previously successful ACL reconstruction (ACL first group); and the third group included patients who had an ACI procedure to a clinically stable knee with documented nonreconstructed ACL disruption (No ACL group). Their outcomes were assessed using the modified cincinnati rating system, the Bentley functional (BF) rating system (BF) and a visual analog scale (VAS)., Results: At a mean followup of 64.24 months for the ACL first group, 63 months for combined group and 78.33 months for the No ACL group; 60% of ACL first patients, 72.73% of combined group and 83.33% of the No ACL group felt their outcome was better following surgery. There was no significant difference demonstrated in BF and VAS between the combined and ACL first groups. Results revealed a significant affect of osteochondral defect size on outcome measures., Conclusion: The study confirms that ACI in combination with ACL reconstruction is a viable option with similar outcomes as those patients who have had the procedures staged.
- Published
- 2015
- Full Text
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6. Freehand 'figure 4' technique for tibial intramedullary nailing: introduction of technique and review of 87 cases.
- Author
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Granville-Chapman J, Nawaz SZ, Trompeter A, Newman KJ, and Elliott DS
- Subjects
- Bone Nails, Ergonomics, Fluoroscopy, Humans, Tibial Fractures diagnostic imaging, Fracture Fixation, Intramedullary methods, Patient Positioning, Tibial Fractures surgery
- Abstract
Intramedullary nailing of tibial fractures is commonplace, and freehand operative techniques are increasingly popular. The standard freehand method has the knee of the injured leg flexed over a radiolucent bolster. This requires the theatre fluoroscope to swing from antero-posterior to lateral position several times. Furthermore, guide wire placement, reaming and nail insertion are all performed well above most surgeons' shoulder height. Alternatively the leg is hung over the edge of the table, and the assistant must crouch and hold the leg until the nail is passed beyond the fracture. We describe a freehand figure 4 position technique for tibial nailing which is easier both for the surgeons and the radiographer, and present a series of 87 consecutive cases utilising this method.
- Published
- 2014
- Full Text
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7. Autologous chondrocyte implantation in the knee: mid-term to long-term results.
- Author
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Nawaz SZ, Bentley G, Briggs TW, Carrington RW, Skinner JA, Gallagher KR, and Dhinsa BS
- Subjects
- Adolescent, Adult, Analysis of Variance, Arthralgia etiology, Autografts, Cartilage, Articular, Female, Graft Survival, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Pain, Postoperative etiology, Treatment Outcome, Young Adult, Cartilage Diseases surgery, Chondrocytes transplantation, Joint Diseases surgery, Knee Joint surgery
- Abstract
Background: From 1998 to 2008, 1000 skeletally mature patients underwent autologous chondrocyte implantation for an osteochondral defect of the knee. We evaluated the functional outcomes in 827 of 869 patients who had undergone autologous chondrocyte implantation with Chondron or periosteum (ACI-C/ACI-P) or matrix-assisted chondrocyte implantation (MACI) and attempted to identify factors that influenced outcome., Methods: The age of the patient, the size and site of the osteochondral lesion, previous surgery, and the presence of early osteoarthritis were assessed for their influence on outcomes. Each factor was evaluated in a separate Cox proportional hazards model with use of hazard ratios (HRs), with 95% confidence intervals (CIs), describing the likelihood of failure for that particular factor. Outcomes were assessed with use of the modified Cincinnati score, visual analog scale pain score, and Stanmore functional score., Results: The mean duration of follow-up was 6.2 years (range, two to twelve years). The mean age was thirty-four years (range, fourteen to fifty-six years), with 493 males and 334 females. The average size of the defect was 409 mm2 (range, 64 to 2075 mm2). Four hundred and twenty-one procedures (51%) were performed on the medial femoral condyle; 109 (13%), on the lateral femoral condyle; 200 (24%), on the patella; and fifty (6%), on the trochlea. Kaplan-Meier survival analysis revealed that the unadjusted graft survival rate was 78.2% at five years and 50.7% and ten years for the entire cohort. No difference was found between the survival rates of the ACI-C/ACI-P and MACI techniques (HR = 0.948, 95% CI = 0.738 to 1.219, p = 0.678). There was a significant postoperative improvement in the function and pain scores of all three outcome measures (p < 0.002). Survivorship in the group with a previous cartilage regenerative procedure was inferior to that in patients with a previously untreated lesion, with failure five times more likely in the former group (HR = 4.718, standard error [SE] = 0.742, 95% CI = 3.466 to 6.420, p < 0.001). Degenerative change in any compartment had a significant detrimental effect on survivorship, with survivorship worsening as the osteoarthritis grade increased (Grade 1: HR = 2.077, 95% CI = 1.299 to 3.322, p = 0.002; Grade 2: HR = 3.450, 95% CI = 2.646 to 4.498, p < 0.001; and Grade 3: HR = 3.820, 95% CI = 2.185 to 6.677, p < 0.001)., Conclusions: Our study demonstrated an overall graft survival of 78% at five years and 51% beyond ten years following both autologous chondrocyte implantation techniques. Despite study limitations, our results demonstrate that autologous chondrocyte implantation for the treatment of osteochondral defects of the knee can achieve good results., Level of Evidence: Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
- Published
- 2014
- Full Text
- View/download PDF
8. Conversion of unicompartmental knee arthroplasty to total knee arthroplasty: the challenges and need for augments.
- Author
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Khan Z, Nawaz SZ, Kahane S, Esler C, and Chatterji U
- Subjects
- Adult, Aged, Aged, 80 and over, Bone Transplantation, Female, Humans, Joint Instability surgery, Knee Prosthesis, Male, Middle Aged, Prosthesis Failure, Reoperation statistics & numerical data, Arthroplasty, Replacement, Knee methods
- Abstract
The potential advantages of unicompartmental knee arthroplasty (UKA) include lower morbidity and mortality, quicker recovery, good range of motion, good medium and long-term survival results, potential bone conservation and perceived easier revision. Converting a UKA to a total knee arthroplasty (TKA) may be challenging due to issues of bone loss, need for augmentation, restoring joint line and rotation. We present the intraoperative findings of 201 cases of failed UKA's from the Trent Wales arthroplasty audit group (TWAAG) register. The objectives of the study were to determine the modes of failure, number of cases requiring augments and bone grafting, types of augments and implants used in revision surgery. This study does not include the clinical outcomes after revision knee surgery. The average age of the cohort at revision surgery was 67 years. There were 111 females and 90 males. The commonest modes of failure in young patients were unexplained pain/instability and aseptic loosening and in older patients they were aseptic loosening and progression of the disease. The survivorship of the implant was higher in the less than 55 years age group in comparison to the older patients. A total of 49 patients (25.9%) required bone grafting commonest in the 60 years and above age group (79.6%). Fifty patients (26.4%) required some form of augmentation, with the commonest site being tibia and commonest augment being tibial stem (35 cases). Only 8% of the cohort required revision knee implants whereas 78% of the cases received a cruciate retaining primary knee implant. To the author's knowledge, this is one of the largest studies in the literature which signifies the technical difficulties that might be experienced in revising the UKA's which will require appropriate pre-operative planning.
- Published
- 2013
9. Extensive pyogenic myositis of the hip in an immuno-competent patient.
- Author
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Chan O, Nawaz SZ, Hughes S, and Skinner JA
- Published
- 2011
- Full Text
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10. Free fibular graft reconstruction following resection of chondrosarcoma in the first metacarpal.
- Author
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Dhinsa BS, Mann BS, Nawaz SZ, Jalgaonkar A, Briggs TW, and Skinner JA
- Subjects
- Aged, 80 and over, Bone Neoplasms diagnosis, Chondrosarcoma diagnosis, Follow-Up Studies, Humans, Magnetic Resonance Imaging, Male, Bone Neoplasms surgery, Bone Transplantation methods, Chondrosarcoma surgery, Fibula transplantation, Metacarpal Bones, Osteotomy methods, Plastic Surgery Procedures methods
- Abstract
Chondrosarcoma is most frequently present in the pelvis and long bones and rarely seen in the bones of the hand. Traditionally the treatment of choice for involvment of the hand is ray amputation, however this causes significant functional deficit if there is thumb involvement. There are limited cases in literature of resection of thumb chondrosarcoma with restoration of function. We present a case of high grade chondrosarcoma of the first metacarpal treated with resection and free fibular graft reconstruction. We report excellent functional outcome with this procedure.
- Published
- 2011
- Full Text
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