Paul F Lachiewicz

..Even with an articulating surface with considerable polyethylene wear debris, these second-generation proximally coated titanium fiber-metal femoral components had a survival rate of 100% at a mean 10.5-year followup...

..Metal-on-metal hip resurfacing should only be used by a limited number of hip surgeons. The risks and complications of metal-on-metal hip resurfacing outweigh any possible advantages...

..We identified no complications related to the larger femoral heads. The use of larger femoral heads did not notably reduce the prevalence of early dislocation after primary THA in high risk patients compared to historical controls...

..The data confirm the efficacy of a multimodal protocol with thigh-calf mechanical prophylaxis for almost all patients undergoing primary or revision total hip arthroplasty...

..At the time of reoperation, the components appeared well fixed and a linerhead exchange was performed. One year after surgery, the mass had not recurred and the patient had minimal symptoms...

..There was a wide variety of policies concerning orthopaedic faculty trauma call. Additional studies on faculty trauma call are warranted...

..We found a low incidence of lateral retinacular release and patella complications using these components and this protocol for the patellofemoral articulation...

..There has been a change in the indications for revision hip arthroplasty compared with 10 years ago, with a statistically significant increase in revisions for dislocation, wear-osteolysis, and loosening of the femoral component only...

..The purpose of this randomized clinical trial was to compare the survival of two femoral components with similar geometry but substantially different surface finishes...

..Well-fixed metal-metal hip resurfacing components are removed for infection, instability, or hypersensitivity reactions. This article presents a technique for removal of a porous resurfacing acetabular component with minimal bone loss...

..The relative indications for revision total knee arthroplasty have changed over the past decade. Greater emphasis may be needed on improved balancing techniques to prevent instability and new bearing surfaces to decrease wear...

..LEVEL OF EVIDENCE: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence...

..Second-generation components were designed to reduce the incidence of these problems but it is unclear whether the changes achieved these goals...

..Tantalum acetabular components provide stable fixation in difficult acetabular revisions. Level of Evidence: Level IV, case series. See Guidelines for Authors for a complete description of levels of evidence...

..Polyethylene wear and intraprosthetic dislocation are concerns, as is the lack of long-term data. Caution is thus advised in the routine use of dual-mobility components in primary and revision total hip arthroplasty...

..A significant association was identified between younger patient age and osteolysis. We continue to routinely implant a similar modular posterior stabilized total knee prosthesis...

..LEVEL OF EVIDENCE: Level IV, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence...

..The rate of radiographic failure and revision of this component implanted with conventional polyethylene and cobalt chrome heads is similar to that reported with other "modern" femoral components...

..Level of Evidence: Therapeutic study, Level IV (case series [no, or historical, control group]). See Instructions to Authors for a complete description of levels of evidence...

..0001). The high rate of success and low rate of polyethylene wear and pelvic osteolysis at this length of follow-up may be related to the new design features of this modular acetabular component...

..Continued follow-up will be necessary to evaluate the influence of these findings on the longevity of the fixation of this prosthesis...

..0, or none. Patients at elevated (above standard) risk of both PE and major bleeding should be considered for aspirin, warfarin with an INR goal of < or =2.0, or none...

..The constrained condylar TKA remains indicated for knees with severe valgus deformity, incompetent medial collateral ligament, or severe flexion contracture in which the knee cannot be properly balanced...

..1 years (range, 2-11 years). However, there have been 7 patients (20%) with recurrent dislocation and all required reoperation. Dislocation was significantly lower when an elevated rim liner was used...

..These forces may eventually contribute to failure of the component due to loosening, dissociation, breakage, or recurrent dislocation. Studies of these components show a failure rate of 4% to 29% at relatively short-term follow-up...

..The rate of dislocation was significantly higher in the patients treated with isolated acetabular revision, and routine postoperative bracing is now recommended for that group...

..Modular revision can be a successful method of treatment of recurrent dislocation after primary THA, but is much less successful after revision THA...

..However, until additional clinical results are available, a cautious approach is warranted to the widespread use of highly cross-linked polyethylene in total knee arthroplasty...

..5%) knees, respectively. The accuracy of component sizing in this study is greater than previously reported. The prevalence of alignment outliers in this study is less than previously reported for conventional techniques...

..The authors report a case of a highly cross-linked all-polyethylene patellar component that failed as a result of fracture in vivo in a patient 3 years after TKA...

..This was successful in 6 hips. Even with the use of a curved stem, we report a high prevalence of intraoperative fracture of the femur in revision hip arthroplasty...

..3%), and minor femoral osteolysis was seen in 3 hips (4%). Used in this manner in this patient population, precoating is not detrimental to successful fixation at 10 years' mean follow-up of primary hybrid THA...

..Attention to detail during surgery is likely the most critical factor to the success of patellar resurfacing in total knee arthroplasty...

..The result was good at 5 years, with healed fracture and no loosening or osteolysis of either component...

..Antibiotic cement may be used in patients at higher risk for infection. The 10-year results of cemented femoral components in these patient populations are excellent...

..Surgical treatment, consisting of release or resection of the iliopsoas tendon, alone or in combination with acetabular revision for an anterior overhanging component, usually provides permanent pain relief...

..The lateral retinaculum was left open to provide for better motion. At 1 year postoperatively, she ambulated with a cane, with range of motion examination revealing 5 degrees flexion contracture and 80 degrees flexion...

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..However, there are little data on the long-term survival and complications associated with use of these components...

..45%) died within the first 90 days. For the entire group of arthroplasties, the overall mortality at 1 year and 2 years was significantly less (both P <.05) than the number of expected deaths in the general population...

..Abductor tendon repair has had inconsistent results in persons with avulsion following THA. Reconstruction with a gluteus maximus muscle flap or Achilles tendon allograft has provided promising short-term results in small series...