John B Meding

..The purpose of the present study was to evaluate the minimum ten-year results of primary total hip arthroplasty performed with use of a proximally porous-coated, plasma-sprayed, straight-stemmed, titanium-alloy femoral component...

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

..We believe our data should raise doubts about the use of patellofemoral arthroplasty in any patient. LEVEL OF EVIDENCE: Level IV, therapeutic study. See the Guidelines for Authors for a complete description of levels of evidence...

..Polyethylene wear may be affected by the type of polyethylene resin, manufacturing technique, degree of thermal stabilization, and sterilization technique...

..However, some reports suggest some patients have unexplained hip and early failures with these implants. Thus, the potential benefits may be offset by these concerns. However, the incidence of these problems is not clearly established...

..TKA provides demonstrable pain relief and improved health-related quality of life. Yet, a decline in physical function may occur over the long term despite the absence of implant-related problems...

..Level of Evidence: Level III, therapeutic study. See Guidelines for Authors for a complete description of levels of evidence...

..The purpose of this study was to determine the effect of tibiofemoral alignment, femoral and tibial component alignment, and body-mass index (BMI) on implant survival following total knee replacement...

..The choice of either alignment system should be determined by the patient's anatomy; however, the overall alignment is not as precise using the extramedullary system...

..Osteolysis was observed in one knee after secondary evaluation. Hybrid fixation in a selected patient population can result in excellent results in middle to long-term followup...

..When comparing the results of this study to the results of a similar study of primary total knee arthroplasties, flexion improved less following revision than following primary total knee arthroplasty...

..The purpose of the present study was to evaluate the effect of stuffing the patellofemoral compartment on the outcome of primary total knee arthroplasty...

..The significant influence of this often-unrecognized surgical variable has not been previously reported and must be carefully considered during TKA...

..The purpose of this study was to analyze the effect of preoperative knee alignment on implant survival after total knee arthroplasty...

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..The purpose of this study was to assess the outcomes of manipulation following total knee arthroplasty...

..4684). We conclude that improvement after TKA is similar for men and women, with few clinically significant differences. Sex-specific implants would appear to offer no clinical advantage...

..Whether a previous high tibial osteotomy (HTO) influences the long-term function or survival of a total knee arthroplasty (TKA) is controversial...

..0001). Cups initially placed at an angle of 45.0 degrees to 50.5 degrees had the highest survival rate compared with all possible angle ranges (P < .0158)...

..9%). Preoperative range of motion is an important variable that should be taken into consideration during operative planning to help reduce the risk of dislocation...

..0024). The average age in our infection cohort was 64.3 and 68.4 in the noninfected cohort. In this retrospective review study, obesity, diabetes, and younger age were found to be risk factors for joint arthroplasty infection...

..Routine use of the TEA is recommended for determining femoral component rotation in TKA...

..Survival rates for loosening or revision of any component for any reason were 98.9%, 97.5%, 95.1%, and 93.2% at 5-, 10-, 15-, and 18-years, respectively...

..At a mean of 6.6-year follow-up, the survivorship of the revised tibial components and retained femoral components, with aseptic loosening as the end point, was 100%...

..We correlated this with high, average, or poor postoperative Harris hip scores. Hip motion was found to be correlated with postoperative hip function and may be more useful than previously thought in evaluating hip outcome...

..0004 and 0.0081, respectively). There was no effect of the ISR upon ROM, Knee Society Score, or pain scores. Optimal outcomes occurred in patients where the ISR was not decreased after TKA, with superior stair and function scores...

..8% for uncemented stems and 91.7% for cemented stems. In the absence of fracture, stem survivorship was 98.6% for cemented stems and 100% for circumferentially coated tapered titanium uncemented stems...

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..7). Total knee arthroplasties without lateral patellar contact had a 1.61 times odds of experiencing postoperative pain compared with those TKAs with lateral patellar contact (P = .0025)...

..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...

..Simultaneous bilateral total hip arthroplasty has advantages where both hips are symptomatic and has less risk in younger patients with understanding of the increased risk of pulmonary complications...

..We found an increased rate of tibial component loosening and implant migration in patients with a higher mass and smaller tibial component size...

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..The Luque wires, which cost 29.79 US dollars each, performed equally to the cables, which cost 275.40 US dollars each, suggesting that wiring may be the preferred cerclage technique...

..These findings indicate excellent short-term clinical and radiographic results can be achieved with an extended trochanteric osteotomy and proximally porous-coated calcar replacement prosthesis...

..There was only 1 death within 3 months of the operation. The severity of these patients' deformity may necessitate these procedures be done at 1 operation with consideration of mortality and morbidity risks...

..Patients identified with an increased risk of perioperative cardiac problems were those with a preoperative diagnosis of valvular heart disease (P = .0077), congestive heart failure (P = .0093), or diabetes mellitus (P = .0187)...

..Designs neglecting to adequately address deformational changes in vivo could be susceptible to diminished cup survival, increased wear, and premature revision...

..The informed selection of alternatives based on preoperative assessment of hematologic status, estimated blood loss, and sources for blood replacement may enhance blood management practices in major elective orthopaedic surgery...

..4599), range of motion (P = .7361), Knee Society Score (P = .7247), or function scores (P = .6786). Patients whose fat pad had been removed were nearly twice as likely to experience postoperative pain (P = .0005)...