Failure of Cemented Constrained Acetabular Component at the Bipolar Outer Femoral Head Interface in Revision Hip Arthroplasty.

Constrained acetabular components are used as a salvage option for unstable total hip arthroplasties particularly in elderly low demand patients. Their indications include multiple failed revisions with abductor deficiency, neurologic or neuromuscular impairment, recurrent dislocations where the cause of instability cannot be identified despite well-aligned components. Failure of these components occurred due to increased forces across the bone-component interface or failure of the locking mechanisms.

Two-stage revisions of infected hip replacements: Subspecialisation and patient-reported outcome measures.

Background: Two-stage revision arthroplasty remains the gold standard for managing infected hip replacements. Subspecialisation, high-volume hospitals and surgeons have been linked to improved clinical outcomes. The aim of this study was to assess clinical outcomes of 2-stage revision infected hip replacements of a subspecialist surgeon.

Custom-Made Cement-Linked Distal Femoral Replacement for Interprosthetic Femur Fractures: Five-Year Follow-Up.

Interprosthetic femur fractures between total hip and total knee replacements are challenging injuries with rising incidence. Stability of the either implants, quality, and quantity of remaining bone as well as patients' comorbidities play an important role in operative management. Open reduction and internal fixation, advanced revision arthroplasty techniques, and megaprostheses are available options.

Assessment and management of infected total knee replacements.

Infection following total knee replacement surgery is a challenging and devastating complication. Clinical assessment including history, examination, radiographs, blood tests and knee aspirations helps to establish the diagnosis. Revision surgery is typically required to eradicate infection and restore function.

Higher failure rate of two-stage revision for infected knee arthroplasties in significantly compromised (host-C) patients.

Purpose: To evaluate clinical outcomes of two-stage revision arthroplasty for managing infected knee arthroplasties in significantly compromised patients (host-C).

Methods: This was a prospective consecutive series of two-stage revisions of infected total knee arthroplasties in host-C-type patients with a minimum 2-year follow-up using objective and patient-reported outcome measures. Thirteen consecutive patients were included and prospectively followed with a median 5-year follow-up (range 2-10).

Infected total hip replacements: assessment and management.

Infected total hip replacements pose a diagnostic and management challenge. Careful history, clinical examination, blood tests, plain radiographs and hip aspiration are all part of the clinical assessment. International consensus on establishing the diagnosis helps surgeons to formulate management plans.

Outcomes of Implant-Arthrodesis as Limb Salvage for Failed Total Knee Arthroplasties with Significant Bone Loss: Case Series.

Purpose: We sought to evaluate our consecutive series of knee-implant arthrodesis patients for failed total knee arthroplasties with medium term clinical and radiographic outcomes.

Methods: We conducted a retrospective review of a consecutive series of 4 patients (average age, 75 years; range, 69-79) with failed knee arthroplasties and deficient extensor mechanism who underwent implant arthrodesis with a minimum 2-year follow-up. The primary outcome measure was the patient's reported outcome measures (Short-Form 12) and visual analogue scale for knee pain at final follow-up.