The aim of this study was to analyze how proximal radial neck resorption (PRNR) starts and progresses radiologically in two types of press-fit radial head arthroplasties (RHAs), and to investigate its clinical relevance. A total of 97 patients with RHA were analyzed: 56 received a bipolar RHA (Group 1) while 41 received an anatomical implant (Group 2). Radiographs were performed postoperatively and after three, six, nine, and 12 weeks, six, nine, 12, 18, and 24 months, and annually thereafter. PRNR was measured in all radiographs in the four radial neck quadrants. The Mayo Elbow Performance Score (MEPS), the abbreviated version of the Disabilities of the Arm, Shoulder, and Hand questionnaire (QuickDASH), and the patient-assessed American Shoulder and Elbow Surgeons score - Elbow (pASES-E) were used for the clinical assessment. Radiological signs of implant loosening were investigated.Aims
Methods
Radial head arthroplasty (RHA) may be used in the treatment of
non-reconstructable radial head fractures. The aim of this study
was to evaluate the mid-term clinical and radiographic results of
RHA. Between 2002 and 2014, 77 RHAs were implanted in 54 men and 23
women with either acute injuries (54) or with traumatic sequelae
(23) of a fracture of the radial head. Four designs of RHA were
used, including the Guepar (Small Bone Innovations (SBi)/Stryker;
36), Evolutive (Aston Medical; 24), rHead RECON (SBi/Stryker; ten)
or rHead STANDARD (SBi/Stryker; 7) prostheses. The mean follow-up
was 74.0 months (standard deviation (Aims
Patients and Methods
We assessed the long-term (more than ten-year) outcomes of the
Kudo type-5 elbow prosthesis in patients with rheumatoid arthritis
(RA). We reviewed 41 elbows (Larsen Grade IV, n = 21; Grade V, n =
20) in 31 patients with RA who had undergone a Kudo type-5 total
elbow arthroplasty (TEA) between 1994 and 2003, and had been followed
up for more than ten years. The humeral component was cementless
and the all-polyethylene ulnar component cemented in every patient. Clinical
outcome was assessed using the Mayo elbow performance score. We
calculated the revision rate and evaluated potential risk factors
for revision. The duration of follow-up was a mean 141 months (120
to 203).Aims
Materials and Methods
Revision total elbow arthroplasty (TEA) is often challenging.
The aim of this study was to report on the clinical and radiological
results of revision arthroplasty of the elbow with the Latitude
TEA. Between 2006 and 2010 we used the Latitude TEA for revision in
18 consecutive elbows (17 patients); mean age 53 years (28 to 80);
14 women. A Kudo TEA was revised in 15 elbows and a Souter-Strathclyde
TEA in three. Stability, range of movement (ROM), visual analogue score (VAS)
for pain and functional scores, Elbow Functional Assessment Scale
(EFAS), the Functional Rating Index of Broberg and Morrey (FRIBM)
and the Modified Andrews’ Elbow Scoring System (MAESS) were assessed
pre-operatively and at each post-operative follow-up visit (six,
12 months and biennially thereafter). Radiographs were analysed
for loosening, fractures and dislocation. The mean follow-up was
59 months (26 to 89).Aims
Patients and Methods
Unlinked, linked and convertible total elbow
arthroplasties (TEAs) are currently available. This study is the
first to report the clinical results of the convertible Latitude
TEA. This was a retrospective study of a consecutive cohort of 63
patients (69 primary TEAs) with a mean age of 60 years (23 to 87).
Between 2006 and 2008 a total of 19 men and 50 women underwent surgery.
The mean follow-up was 43 months (8 to 84). The range of movement,
function and pain all improved six months post-operatively and either
continued to improve slightly or reached a plateau thereafter. The
complication rate is similar to that reported for other TEA systems.
No loosening was seen. Remarkable is the disengagement of the radial
head component in 13 TEAs (31%) with a radial head component implanted. Implantation of both the linked and the unlinked versions of
the Latitude TEA results in improvement of function and decreased
pain, and shows high patient satisfaction at mid-term follow-up. Cite this article:
Medium-term results of the Discovery elbow replacement
are presented. We reviewed 51 consecutive primary Discovery total
elbow replacements (TERs) implanted in 48 patients. The mean age
of the patients was 69.2 years (49 to 92), there were 19 males and
32 females (37%:63%) The mean follow-up was 40.6 months (24 to 69).
A total of six patients were lost to follow-up. Statistically significant
improvements in range movement and Oxford Elbow Score were found
(p <
0.001). Radiolucent lines were much more common in, and
aseptic loosening was exclusive to, the humeral component. Kaplan–Meier
survivorship at five years was 92.2% (95% CI 74.5% to 96.4%) for
aseptic loosening. In four TERs, periprosthetic infection occurred
resulting in failure. A statistically significant association between
infection and increased BMI was found (p = 0.0268). Triceps failure
was more frequent after the Mayo surgical approach and TER performed
after previous trauma surgery. No failures of the implant were noted. Our comparison shows that the Discovery has early clinical results
that are similar to other semi-constrained TERs. We found continued
radiological surveillance with particular focus on humeral lucency
is warranted and has not previously been reported. Despite advances
in the design of total elbow replacement prostheses, rates of complication
remain high. Cite this article:
We determined the short-term clinical outcome
and migration within the bone of the humeral cementless component
of the Instrumented Bone Preserving (IBP) total elbow replacement
in a series of 16 patients. There were four men and 12 women with
a mean age at operation of 63 years (40 to 81). Migration was calculated
using radiostereometric analysis. There were no intra-operative
complications and no revisions. At two-year follow-up, all patients
showed a significant reduction in pain and functional improvement
of the elbow (both p <
0.001). Although ten components (63%)
showed movement or micromovement during the first six weeks, 14
(88%) were stable at one year post-operatively. Translation was
primarily found in the proximal direction (median 0.3 mm (interquartile range
(IQR) -0.09 to 0.8); the major rotational movement was an anterior
tilt (median 0.7° (IQR 0.4° to 1.6°)). One malaligned component
continued to migrate during the second year, and one component could
not be followed beyond three months because migration had caused
the markers to break off the prosthesis. This study shows promising early results for the cementless humeral
component of the IBP total elbow replacement. All patients had a
good clinical outcome, and most components stabilised within six
months of the operation. Cite this article:
