Age and gender related differences in infection, thromboembolism, revision and death in knee arthroplasty in a Scottish population.

Background And Aims: The aim of this large population based study was to investigate the effect of patient age and gender on the complication rates of knee arthroplasty surgery using data from the Scottish Arthroplasty Project joint registry.

Methods And Results: 55,636 knee arthroplasty procedures were included in the study and divided into four age categories (<55, 55-64, 65-75 and >75 years) for comparison of the 90-day deep vein thrombosis or pulmonary embolism (DVT/PE) and one-year infection rates and the mortality and revision rates up to ten-year follow up. The mean rate of DVT/PE was 1.

The Role of Lateral Extra-articular Tenodesis in Primary Anterior Cruciate Ligament Reconstruction: A Systematic Review With Meta-analysis and Best-Evidence Synthesis.

Background: The role of lateral extra-articular tenodesis (LEAT) to augment primary anterior cruciate ligament reconstruction (ACLR) remains controversial.

Purpose: To determine whether the addition of LEAT to primary ACLR provides greater control of rotational laxity and improves clinical outcomes compared with ACLR alone and to assess the impact of early versus delayed ACLR.

Study Design: Systematic review; Level of evidence, 3.

Surgical treatments of cartilage defects of the knee: Systematic review of randomised controlled trials.

Background: The aim of this systematic review was to identify high quality randomised controlled trials (RCTs) and to provide an update on the most appropriate surgical treatments for knee cartilage defects.

Methods: Two reviewers independently searched three databases for RCTs comparing at least two different treatment techniques for knee cartilage defects. The search strategy used terms mapped to relevant subject headings of MeSH terms.

Standing balance and inter-limb balance asymmetry at one year post primary anterior cruciate ligament reconstruction: Sex differences in a cohort study of 414 patients.

Background: Static standing balance can be safely assessed early following anterior cruciate ligament reconstruction (ACLR), and deficits may have important implications for long-term outcomes. This study includes a large cohort of people post-ACLR and has the primary aim of establishing whether inter-limb and sex differences exist, with a secondary aim of assessing the association between static balance variables and other outcome measures.

Methods: A total of 414 patients with a primary ACLR performed a 30-s static single leg balance test.

Improved Accuracy of Component Positioning with Robotic-Assisted Unicompartmental Knee Arthroplasty: Data from a Prospective, Randomized Controlled Study.

Background: Higher revision rates have been reported in patients who have undergone unicompartmental knee arthroplasty compared with patients who have undergone total knee arthroplasty, with poor component positioning identified as a factor in implant failure. A robotic-assisted surgical procedure has been proposed as a method of improving the accuracy of component implantation in arthroplasty. The aim of this prospective, randomized, single-blinded, controlled trial was to evaluate the accuracy of component positioning in unicompartmental knee arthroplasty comparing robotic-assisted and conventional implantation techniques.

Accuracy and early outcomes in medial unicompartmental knee arthroplasty performed using patient specific instrumentation.

Unicompartmental knee arthroplasty (UKA) is a technically demanding procedure and poor implant positioning has been identified as a factor in early failure. The aim of this study was to evaluate the accuracy and clinical outcomes of the patient specific instrumentation implementation technique with a fixed bearing UKA. We carried out a prospective study of 41 patients (44 procedures) between December 2011 and April 2013.

Component rotational alignment in unexplained painful primary total knee arthroplasty.

Background: Rotational malalignment of the components in total knee arthroplasty (TKA) can be a factor in poor outcomes but has yet to be defined. This study compares the rotational alignment of components in a cohort of 56 patients with unexplained pain following total knee arthroplasty with a matched control cohort of 56 patients with cemented Nex Gen Legacy posterior stabilised (LPS) flex fixed bearing TKA between March 2006 and May 2010. The aim of the study was to define an acceptable limit of rotation in total knee replacement.

Primary osseous tumors of the hindfoot: why the delay in diagnosis and should we be concerned?

Background: Bony tumors of the foot account for approximately 3% of all osseous tumors. Diagnosis is frequently delayed as a result of lack of clinician familiarity and as a result of their rarity. The reasons for the delays, however, are unclear.