Introduction & Aim. The use of All-Poly Tibia has been in practice since the early 1970's. Recently due to the reports on wear and osteolysis in other articulations, this component has generated significant interest. In the current study we aim to report early medium-term results of All-poly Tibial components in elderly (>70 years) patients. Method. Study of 455 cases done between 2005-2020. All the cases were performed by a single surgeon. All-Poly Tibial component implantations were performed using Standard mechanical jigs and the same posterior-stabilized implant was used for all cases. Results. 20 cases were lost to follow-up. 25 patients died due to natural causes. Mean age at index surgery was 74 years (70 - 91 years). Preop KSS average was 47 (31- 62). Post operative at the last follow up was 87 (71- 93). Of the 410 cases there were 8 revisions, 6 for
The purpose of the study was to identify factors that affect the incidence of deep wound infection after hip fracture surgery. Data from a hip fracture database of 7057 consecutively treated patients at a single centre was used to determine the relationship between
The objective of this study was to determine the effectiveness of screening and successful treatment of methicillin-resistant Staphylococcus aureus (MRSA) colonisation in elective orthopaedic patients on the subsequent risk of developing a surgical site infection (SSI) with MRSA. We screened 5933 elective orthopaedic in-patients for MRSA at pre-operative assessment. Of these, 108 (1.8%) were colonised with MRSA and 90 subsequently underwent surgery. Despite effective eradication therapy, six of these (6.7%) had an SSI within one year of surgery. Among these infections,
Purpose. To identify the incidence and reasons for revision of the Oxford prosthesis (OXF) in New Zealand. Methods. Review and compare UKA and TKA data including patient-generated Oxford scores after operation. Results. 105 surgeons performed 3,624 OXF (66.5% of all UKA). UKA made up 12.8% of all knee arthroplasties. There were 216 OXF revisions and revision rate (RR) of 1.39 per 100 component-years (p100cy); for UKA this was 1.42 p100cy, and for TKA 0.54 p100cy (OXF vs TKA p< 0.0001). The indications for OXF revisions were unexplained pain (38.0%); aseptic loosening (38.0%); bearing dislocation (9.3%) and
Obtaining primary wound healing in total joint arthroplasty (TJA) is essential to a good result. Wound healing disturbances (WHD) can occur and the consequences can be devastating to the patient and to the surgeon. Determination of the host healing capacity can be useful in predicting complications. Cierney and Mader classified patients as Type A: no healing compromises and Type B: systemic or local healing compromise factors present. Local factors include traumatic arthritis with multiple previous incisions, extensive scarring, lymphodema, poor vascular perfusion, and excessive local adipose deposition. Systemic compromising factors include diabetes, rheumatic diseases, renal or liver disease, immunocompromise, steroids, smoking, and poor nutrition. Low serum albumin, total lymphocyte count, and low transferrin increase WHD. In high risk situations the surgeon should encourage positive patient choices such as smoking cessation and nutritional supplementation to modify healing responses. Use of tourniquet in obese patients also increases WHD. Careful planning of incisions, particularly in patients with scarring or multiple previous operations, is productive. Around the knee the vascular viability is better in the medial flap. Thusly, use the most lateral previous incision, do minimal undermining, and handle tissue meticulously. We do all potentially complicated TKA's without tourniquet to enhance blood flow and tissue viability. The use of perioperative anticoagulation will increase wound problems. If wound drainage or healing problems do occur, immediate action is required.
Obtaining primary wound healing in Total Joint Arthroplasty (TJA) is essential to a good result. Wound healing problems can occur and the consequences can be devastating to the patient and to the surgeon. Determination of the host healing capacity can be useful in predicting complications. Cierney and Mader classified patients as Type A: no healing compromises and Type B: systemic or local healing compromises factors present. Local factors include traumatic arthritis with multiple previous incisions, extensive scarring, lymphedema, poor vascular perfusion, and excessive local adipose deposition. Systemic compromising factors include diabetes, rheumatic diseases, renal or liver disease, immunocompromise, steroids, smoking, and poor nutrition. In high risk situations the surgeon should encourage positive patient choices such as smoking cessation and nutritional supplementation to elevate the total lymphocyte count and total albumin. Careful planning of incisions, particularly in patients with scarring or multiple previous operations, is productive. Around the knee the vascular viability is better in the medial flap. Thusly, use the most lateral previous incision, do minimal undermining, and handle tissue meticulously. We do all potentially complicated TKAs without tourniquet to enhance blood flow and tissue viability. The use of peri-operative anticoagulation will increase wound problems. If wound drainage or healing problems do occur immediate action is required.
Material and methods:. Fifteen patients sustaining high energy Gustilo 3B injuries of the tibia were treated from 2003 to 2009 with initial debridement followed by application of an external fixation device allowing immediate acute shortening of the bone gap. The bone defects ranged from 3 cm to 5 cm. Wound management was achieved with a vacuum assisted closure device (VAC) until granulation tissue covering the exposed bone made coverage with split skin grafting possible. A delayed progressive lengthening procedure was used to equalize the leg length discrepancy after wound cover was achieved. Results:. The mean age of the 15 patients was 30 years and treatment times varied from 4 to 12 months. All fractures united with acceptable alignment and equalization of the leg length discrepancy. One patient required repeat procedures for a pin site infection by changing a wire. There was no
This paper reports the clinical outcomes and survivorship of a prospective series of Advantim cementless TKR performed at the RAH between 1993 and 2005. There were 210 knees in 176 patients. All procedures were performed or supervised by a single surgeon. All patients were followed up at regular intervals, up to 15 years later, with Knee Society Cinical Rating System and X-Rays. No patients were lost to follow-up. The knee rating improved from a median of 47 to 90. The median range of motion was 0–100. At 11 years the survivorship of the tibial component was 95.5% and femur was 93.7%. There were two major revisions and three minor revisions for polyethelene exchange. There was no
Purpose of Study. We intended to determine our rates of deep infection and non-union in severe open tibial fractures treated at our institution with Ilizarov frames. Methods. We retrospectively reviewed the case notes and radiographs of sixty consecutive cases of severe (Gustillo-Anderson Grade III) open fractures of the tibia treated in our tertiary referral unit with the ‘Flap and Frame’ technique. This technique involves early aggressive soft tissue and bone debridement and temporary skeletal stabilisation, followed by soft tissue coverage and then, when the soft tissues have settled, definitive skeletal stabilisation with the Ilizarov frame. The primary outcome measures were the presence of deep infection, occurence of union with the index frame, and any requirement for secondary amputation. Results. Mean average age was 43.3 years (range 16–89). None had neurovascular injuries requiring repair, while three quaters required soft tissue coverage procedures. Half of the fractures had significant bone loss following debridement, with a mean average loss of 28.1 mm (range 5–125). Mean followup was 10.3 months. The
Obtaining primary wound healing in Total Joint Arthroplasty (TJA) is essential to a good result. Wound healing problems can occur and the consequences can be devastating to the patient and to the surgeon. Determination of the host healing capacity can be useful in predicting complications. Cierney and Mader classified patients as Type A: no healing compromises and Type B: systemic or local healing compromises factors present. Local factors include traumatic arthritis with multiple previous incisions, extensive scarring, lymphedema, poor vascular perfusion, and excessive local adipose deposition. Systemic compromising factors include diabetes, rheumatic diseases, renal or liver disease, immune compromise, steroids, smoking, and poor nutrition. In high risk situations the surgeon should encourage positive patient choices such as smoking cessation and nutritional supplementation to elevate the total lymphocyte count and total albumin. Careful planning of incisions, particularly in patients with scarring or multiple previous operations, is productive. Around the knee the vascular viability is better in the medial flap. Thus, use the most lateral previous incision, do minimal undermining, and handle tissue meticulously. We do all potentially complicated TKAs without tourniquet to enhance blood flow and tissue viability. The use of perioperative anticoagulation will increase wound problems. If wound drainage or healing problems do occur immediate action is required.
Introduction. Various implant designs and bearing surfaces are used in TKR. The use of All Poly Tibia and poly moulded on Tibial metal base plate has been in practice since long. Recently due to the reports on wear and osteolysis in modular articulations, these components have generated significant interest. Aim. To report early medium term results in elderly (>70 years) patients. Method. Study of 130 cases done between 2005–2009. All cases were performed by the author. Inclusion Criteria:. Patients with physiological age > 70 years. Patients with low functional demand. Good bone quality. Exclusion Criteria: Inflammatory arthropathy. Osteoporosis and poor bone quality. High functional demand. All Poly Tibial component/ Moulded Metal back Tibia implantations were performed. A PS design was used in all cases fixed with CMW 1 gentamicin cement. Results. 12 cases were lost to follow up. 11 patients deceased due to medical conditions. This left us with 107 cases at the time of the last follow up. Mean age at index surgery was 72.5 years.(70–91 years). Preop KSS average was 42 (25–62). Post operative at the latest Follow up was 89 (68–97). Of 107 cases there were 4 revisions - two for
Background. Hospital acquired MRSA is globally endemic and is a leading cause of surgical site infection (SSI). Of great concern is the emergence of community acquired MRSA (CA MRSA) with its unique virulence characteristics. Infected hip or knee prostheses due to MRSA are associated with multiple reoperations and prolonged hospital stay. Few studies have been done to assess for risk of SSI in MRSA carriers undergoing elective orthopaedic surgery following decolonisation. However in these studies, the eradication status was not confirmed prior to proceeding for surgical intervention. Aim. The purpose of the study was to evaluate the incidence of SSI in MRSA carriers undergoing elective hip and knee arthroplasty, who had confirmed eradication of MRSA carrier status and to compare it with incidence of SSI in non MRSA carriers. Material and Methods. This is a retrospective analysis of 6613 patients who underwent elective hip (3347) and knee arthroplasty (3266) at our institution between January 2008 and August 2012. A cohort of patients who were preoperatively colonised with MRSA was identified. These patients were offered decolonisation protocol and successful eradication was ensured prior to surgery. The MRSA negative patients served as the control group and we looked into the incidence of SSI in both groups up to one year after surgery. Categorical variables were investigated between groups using chi-squared tests and p value of < 0.05 was taken as significant. Results. Out of 6613 patients, MRSA colonisation was observed in 83 patients (a mean age of 76 years with a M:F ratio of 1:1.2) pre-operatively with a colonisation rate of 1.3%. A total of 79 patients had confirmed eradication of carrier status prior to surgical intervention. Of these 38 were THRs and 41 were TKRs. Total number of MRSA negative patients were 6530 with 3307 THRs and 3223 TKRs in control group. Teicoplanin was used for antibiotic prophylaxis in these patients. 5 of 79 patients had “deep SSI” within 1 year of surgery giving an infection rate of 6.32%. There were 2 MRSA infections in hip replacements with an infection rate of 5.26%. There were 2 MRSA and 1 MSSA infection in TKR resulting in an infection rate of 7.31%. These patients did not belong to the “high-risk” group for MRSA colonisation. A significant statistical difference in infection rates from MRSA negative control group was noted, which had a
The Osteoprotegerin/RANK/RANKL system has been implicated in the biological cascade of events initiated by particulate wear debris and bacterial infection resulting in periprosthetic bone loss around loosened total hip arthroplasties (THA). Individual responses to such stimuli may be dictated by genetic variation and we have studied the effect of single nucleotide polymorphisms (SNPs) within these genes. We performed a case control study of the Osteoprotegerin, RANK and RANKL genes for possible association with
Introduction. Negative remodelling of the femoral cortex in the form of calcar resorption due to stress shielding and cortical hypertrophy at the level of the tip of the implant, due to distal load transfer, is frequently noted following cemented total hip replacement, most commonly with composite beam implants, but also with polished double tapers. The C-stem polished femoral component was designed with a third taper running from lateral to medial across and along the entire length of the implant, with the aim of achieving more proximal and therefore more natural loading of the femur. The hoop stresses generated in the cement mantle are transferred to the proximal bone starting at the calcar, which should theoretically minimise stress-shielding and calcar resorption, as well as reducing distal load transfer, as signified by the development of distal femoral cortical hypertrophy. Materials/Methods. We present the results of a consecutive series of 500 total hip replacements performed between March 2000 and December 2005 at a single institution, using a standard surgical technique and third generation cementing with Palacos-R antibiotic loaded cement. Data was collected prospectively and the patients remain under annual follow-up. 500 arthroplasties were performed on 455 patients with an average age of 68.3 years (23–92). 77 patients have died (73 arthroplasties) and the average duration of follow-up for the entire series is 81 months (52–124). Results. Only 2 femoral implants have been revised - one for
Negative remodelling of the femoral cortex in the form of calcar resorption due to stress-shielding, and femoral cortical hypertrophy at the level of the tip of the implant due to distal load transfer, is frequenly noted following cemented total hip replacement, most commonly with composite beam implants, but also with polished double tapered components. The C-stem polished femoral component was designed with a third taper running from lateral to medial across and along the entire length of the implant, with the aim of achieving more proximal and therefore more natural loading of the femur. The implant is designed to subside within the femoral cement mantle utilising the cement property of creep, generating hoop stresses, which are transferred more proximally to the femoral bone, starting at the level of the medial calcar. The intention is to load the proximal femur minimising stress-shielding and calcar resorption, as well as reducing distal load transfer as signified by the lack of distal femoral cortical hypertrophy. We present the results of a consecutive series of 500 total hip replacements using C-stem femoral components, performed between March 2000 and December 2005 at a single institution. Data was collected prospectively and all patients remain under annual follow-up by a Specialist Arthroplasty Practitioner. The operations were performed using a standard surgical technique with third generation cementing using Palacos-R antibiotic loaded cement. 500 arthroplasties were performed on 455 patients with an average age at the time of surgery of 68.3 years (23-92). There were 282 (62%) female and 173 (38%) male patients with osteoarthritis being the predominant diagnosis. 77 patients have died (73 hips) and the average duration of follow-up for the entire series is 81 months (52-124). Only 2 femoral implants have been revised - one for
The straddle fractures represent a distinct anatomical pattern of pelvic trauma. Their specific clinical characteristics, associated injuries and clinical outcome remain mostly underreported and ambiguous. Over a 3-year period all straddle fractures were identified from a prospective database of a tertiary referral hospital. For all cases, excluding children < 16 years and pathologic fractures, demographic characteristics, associated trauma, ISS-2005, transfusion requirements, surgical procedures, post-operative course, complications and clinical outcome were recorded over a median follow-up of 19 months (7-36). All fractures were classified by the two senior authors separately. Of 280 pelvic fractures, 31(11%) straddle fractures were identified. The median age was 38 years (17-88) and the male/female ratio was 1.38. Half of them were classified as lateral-compression (51.6%), 19.4% as anteroposterior-compression, and 29% combined mechanism of injury. 9 cases had an intra-articular extension to one or both acetabula. Median ISS was 21 (9-57), while 71% had a serious (AIS>2) associated thoracic injury, 48.4% head injury, 38.7% abdominal injury, 51.6%- lower extremity fracture, and 38.7% significant urogenital injuries. Six underwent acute embolisation, and the mean transfusion rates over the initial 72hrs were 7.5 units-cRBC, 2.3 units-FFP, 0.5 units-PLTs. All cases were treated operatively, either with ORIF (14 cases), closed reduction and percutaneous screw fixation (10 cases), while an external fixator was used in 21 cases. The median length of stay was 21 days (1-106). The mortality rate was 6.5% (one on the day of admission and another after 15 days at the ICU). Eight superficial infections, 2
We aimed to investigate the treatment and outcome of patients over 65 years of age with tibial Pilon fracture. Patients were treated by primary open reduction and internal fixation or external fixation (EF) as determined by local soft tissue conditions. Patient course, incidence of radiological osteoarthritis and functional outcome using the SF-36 questionnaire were recorded. All patients were evaluated serially until discharge from final follow-up. The mean follow-up time was 28 months (12-45). Statistical analysis was performed using Analyse-it(tm) software for Excel. In total 25 patients were studied. Two patients died before completion of treatment and were excluded from the final analysis. Therefore, 23 patients (10 male) were included with a mean age of 70.9 years (range 66-89) and a mean ISS of 10.25 (range 9-22). There were 4 grade IIIb open injuries. Three patients suffered superficial tibial wound infection. Two patients underwent early secondary amputation due to