This study investigated the influence of body mass index (BMI)
on patients’ function and quality of life ten years after total
knee arthroplasty (TKA). A total of 126 patients who underwent unilateral TKA in 2006
were prospectively included in this retrospective study. They were
categorized into two groups based on BMI: < 30 kg/m2 (control)
and ≥ 30 kg/m2 (obese). Functional outcome was assessed
using the Knee Society Function Score (KSFS), Knee Society Knee
Score (KSKS), and Oxford Knee Score (OKS). Quality of life was assessed
using the Physical (PCS) and Mental Component Scores (MCS) of the 36-Item
Short-Form Health Survey.Aims
Patients and Methods
Little is known about the relative outcomes of revision of unicompartmental
knee arthroplasty (UKA) and high tibial osteotomy (HTO) to total
knee arthroplasty (TKA). The aim of this study is to compare the
outcomes of revision surgery for the two procedures in terms of
complications, re-revision and patient-reported outcome measures (PROMs)
at a minimum of two years follow-up. This study was a retrospective review of data from an institutional
arthroplasty registry for cases performed between 2001 and 2014.
A total of 292 patients were identified, of which 217 had a revision
of HTO to TKA, and 75 had revision of UKA to TKA. While mean follow-up
was longer for the HTO group compared with the UKA group, patient
demographics (age, body mass index and Charlson co-morbidity index)
and PROMs (Short Form-36, Oxford Knee Score, Knee Society Score,
both objective and functional) were similar in the two groups prior
to revision surgery. Outcomes included the rate of complications
and
re-operation, PROMS and patient-reported satisfaction at six months
and two years post-operatively. We also compared the duration of
surgery and the need for revision implants in the two groups. Aims
Patients and Methods
External fixators are the traditional fixation method of choice for contaminated open fractures. However, patient acceptance is low due to the high profile and therefore physical burden of the constructs. An externalised locking compression plate is a low profile alternative. However, the biomechanical differences have not been assessed. The objective of this study was to evaluate the axial and torsional stiffness of the externalised titanium locking compression plate (ET-LCP), the externalised stainless steel locking compression plate (ESS-LCP) and the unilateral external fixator (UEF). A fracture gap model was created to simulate comminuted mid-shaft tibia fractures using synthetic composite bones. Fifteen constructs were stabilised with ET-LCP, ESS-LCP or UEF (five constructs each). The constructs were loaded under both axial and torsional directions to determine construct stiffness.Objectives
Methods
This study investigated the influence of body mass index (BMI)
on the post-operative fall in the level of haemoglobin (Hb), length
of hospital stay (LOS), 30-day re-admission rate, functional outcome
and quality of life, two years after total knee arthroplasty (TKA). A total of 7733 patients who underwent unilateral primary TKA
between 2001 and 2010 were included. The mean age was 67 years (30
to 90). There were 1421 males and 6312 females. The patients were
categorised into three groups: BMI <
25.0 kg/m2 (normal);
BMI between 25.0 and 39.9 kg/m2 (obese); and BMI ≥ 40.0
kg/m2 (morbidly obese).Aims
Patients and Methods
The success of total knee replacement (TKR) depends
on optimal soft-tissue balancing, among many other factors. The
objective of this study is to correlate post-operative anteroposterior
(AP) translation of a posterior cruciate ligament-retaining TKR
with clinical outcome at two years. In total 100 patients were divided
into three groups based on their AP translation as measured by the
KT-1000 arthrometer. Group 1 patients had AP translation <
5
mm, Group 2 had AP translation from 5 mm to 10 mm, and Group 3 had
AP translation >
10 mm. Outcome assessment included range of movement
of the knee, the presence of flexion contractures, hyperextension,
knee mechanical axes and functional outcome using the Knee Society
score, Oxford knee score and the Short-Form 36 questionnaire. At two years, patients in Group 2 reported significantly better
Oxford knee scores than the other groups (p = 0.045). A positive
correlation between range of movement and AP translation was noted,
with patients in group 3 having the greatest range of movement (mean
flexion: 117.9° (106° to 130°)) (p <
0.001). However, significantly
more patients in Group 3 developed hyperextension >
10° (p = 0.01). In this study, the best outcome for cruciate-ligament retaining
TKR was achieved in patients with an AP translation of 5 mm to 10
mm.
