To compare radiographic failure and re-operation rates of anatomical
coracoclavicular (CC) ligament reconstructional techniques with
non-anatomical techniques after chronic high grade acromioclavicular
(AC) joint injuries. We reviewed chronic AC joint reconstructions within a region-wide
healthcare system to identify surgical technique, complications,
radiographic failure and re-operations. Procedures fell into four
categories: Aims
Patients and Methods
This study aims to assess first, whether mutations in the epidermal
growth factor receptor (EGFR) and Kirsten rat sarcoma (kRAS) genes
are associated with overall survival (OS) in patients who present
with symptomatic bone metastases from non-small cell lung cancer
(NSCLC) and secondly, whether mutation status should be incorporated into
prognostic models that are used when deciding on the appropriate
palliative treatment for symptomatic bone metastases. We studied 139 patients with NSCLC treated between 2007 and 2014
for symptomatic bone metastases and whose mutation status was known.
The association between mutation status and overall survival was
analysed and the results applied to a recently published prognostic
model to determine whether including the mutation status would improve
its discriminatory power.Aims
Patients and Methods
Few studies have assessed outcomes following non-metal-on-metal hip arthroplasty (non-MoMHA) revision surgery performed for adverse reactions to metal debris (ARMD). We assessed outcomes following non-MoMHA revision surgery performed for ARMD, and identified predictors of re-revision. We performed a retrospective observational study using data from the National Joint Registry for England and Wales. All non-MoMHAs undergoing revision surgery for ARMD between 2008 and 2014 were included (185 hips in 185 patients). Outcome measures following ARMD revision were intra-operative complications, mortality and re-revision surgery. Predictors of re-revision were identified using Cox regression.Objectives
Methods
To determine ten-year failure rates following 36 mm metal-on-metal
(MoM) Pinnacle total hip arthroplasty (THA), and identify predictors
of failure. We retrospectively assessed a single-centre cohort of 569 primary
36 mm MoM Pinnacle THAs (all Corail stems) followed up since 2012
according to Medicines and Healthcare Products Regulation Agency
recommendations. All-cause failure rates (all-cause revision, and
non-revised cross-sectional imaging failures) were calculated, with predictors
for failure identified using multivariable Cox regression.Aims
Patients and Methods
The purpose of this study was to determine the lifetime risk
of revision surgery for patients undergoing Charnley cemented total
hip arthroplasty (THA), with 40-year follow up, using death as a
competing risk. We retrospectively reviewed 2000 cemented Charnley THAs, with
51 living hips available at 40 years. Aims
Materials and Methods
We examined risk of developing acute renal failure and the associated
mortality among patients aged >
65 years undergoing surgery for
a fracture of the hip. We used medical databases to identify patients who underwent
surgical treatment for a fracture of the hip in Northern Denmark
between 2005 and 2011. Acute renal failure was classified as stage
1, 2 and 3 according to the Kidney Disease Improving Global Outcome
criteria. We computed the risk of developing acute renal failure
within five days after surgery with death as a competing risk, and
the short-term (six to 30 days post-operatively) and long-term mortality
(31 days to 365 days post-operatively). We calculated adjusted hazard
ratios (HRs) for death with 95% confidence intervals (CIs).Aims
Patients and Methods
The goals of this study were to define the risk factors, characteristics,
and chronology of fractures in 5417 revision total hip arthroplasties
(THAs). From our hospital’s prospectively collected database we identified
all patients who had undergone a revision THA between 1969 and 2011
which involved the femoral stem. The patients’ medical records and
radiographs were examined and the relevant data extracted. Post-operative
periprosthetic fractures were classified using the Vancouver system.
A total of 5417 revision THAs were identified.Aims
Patients and Methods
The October 2015 Foot &
Ankle Roundup360 looks at: TightRope in Weber C fractures; A second look at the TightRope; Incisional VAC comes of age?; Platelet-derived growth factor and ankle fusions; Achilles tendon rehab in the longer term following surgery; Telemedicine for diabetic foot ulcer
Our aim was to compare polylevolactic acid screws
with titanium screws when used for fixation of the distal tibiofibular
syndesmosis at mid-term follow-up. A total of 168 patients, with
a mean age of 38.5 years (18 to 72) who were randomly allocated
to receive either polylevolactic acid (n = 86) or metallic (n =
82) screws were included. The Baird scoring system was used to assess
the overall satisfaction and functional recovery post-operatively.
The demographic details and characteristics of the injury were similar
in the two groups. The mean follow-up was 55.8 months (48 to 66).
The Baird scores were similar in the two groups at the final follow-up.
Patients in the polylevolactic acid group had a greater mean dorsiflexion
(p = 0.011) and plantar-flexion of the injured ankles (p <
0.001).
In the same group, 18 patients had a mild and eight patients had
a moderate foreign body reaction. In the metallic groups eight had
mild and none had a moderate foreign body reaction (p <
0.001).
In total, three patients in the polylevolactic acid group and none
in the metallic group had heterotopic ossification (p = 0.246). We conclude that both screws provide adequate fixation and functional
recovery, but polylevolactic acid screws are associated with a higher
incidence of foreign body reactions. Cite this article:
We sought to establish the incidence of joint failure secondary to adverse reaction to metal debris (ARMD) following metal-on-metal hip resurfacing in a large, three surgeon, multicentre study involving 4226 hips with a follow-up of 10 to 142 months. Three implants were studied: the Articular Surface Replacement; the Birmingham Hip Resurfacing; and the Conserve Plus. Retrieved implants underwent analysis using a co-ordinate measuring machine to determine volumetric wear. There were 58 failures associated with ARMD. The median chromium and cobalt concentrations in the failed group were significantly higher than in the control group (p <
0.001). Survival analysis showed a failure rate in the patients with Articular Surface Replacement of 9.8% at five years, compared with <
1% at five years for the Conserve Plus and 1.5% at ten years for the Birmingham Hip Resurfacing. Two ARMD patients had relatively low wear of the retrieved components. Increased wear from the metal-on-metal bearing surface was associated with an increased rate of failure secondary to ARMD. However, the extent of tissue destruction at revision surgery did not appear to be dose-related to the volumetric wear.
The August 2015 Knee Roundup360 looks at: Two days as good as three in TKA; Bilateral TKA: minimising the risks; Tranexamic acid in knee arthroplasty: everyone should be using it, but how?; Initial follow-up for knee arthroplasty?; Navigation finds its niche?; Another take on navigation?; Multimodal care for early knee osteoarthritis; ACL graft fixation methods under the spotlight
Between 1988 and 1998 we implanted 318 total hip replacements (THRs) in 287 patients using the Plasmacup (B. Braun Ltd, Sheffield, United Kingdom) and a conventional metal-on-polyethylene articulation. The main indications for THR were primary or secondary osteoarthritis. At follow-up after a mean 11.6 years (7.6 to 18.4) 17 patients had died and 20 could not be traced leaving a final series of 280 THRs in 250 patients. There were 62 revisions (22.1%) in 59 patients. A total of 43 acetabular shells (15.4%) had been revised and 13 (4.6%) had undergone exchange of the liner. The most frequent indications for revision were osteolysis and aseptic loosening, followed by polyethylene wear. The mean Kaplan-Meier survival of the Plasmacup was 91% at ten years and 58% at 14 years. Osteolysis was found around 36 (17.1%) of the 211 surviving shells. The median annual rate of linear wear in the surviving shells was 0.12 mm/year and 0.25 mm/year in those which had been revised (p <
0.001). Polyethylene wear was a strong independent risk factor for osteolysis and aseptic loosening. The percentage of patients with osteolysis increased proportionately with each quintile of wear-rate. There is a high late rate of failure of the Plasmacup. Patients with the combination of this prosthesis and bearing should be closely monitored after ten years.
The December 2013 Shoulder &
Elbow Roundup360 looks at: Platelet-rich plasma; Arthroscopic treatment of sternoclavicular joint osteoarthritis; Synchronous arthrolysis and cuff repair; Arthroscopic arthrolysis; Regional blockade in the beach chair; Recurrent instability; Avoiding iatrogenic nerve injury in elbow arthroscopy; and Complex reconstruction of total elbow revisions
The February 2014 Hip &
Pelvis Roundup360 looks at: length of stay; cementless metaphyseal fixation; mortality trends in over 400,000 total hip replacements; antibiotics in hip fracture surgery; blood supply to the femoral head after dislocation; resurfacing and THR in metal-on-metal replacement; diabetes and hip replacement; bone remodelling over two decades following hip replacement; and whether bisphosphonates affect acetabular fixation.
Fractures of the odontoid peg are common spinal
injuries in the elderly. This study compares the survivorship of
a cohort of elderly patients with an isolated fracture of the odontoid
peg A total of 32 patients with an isolated odontoid fracture were
identified. The rate of mortality was 37.5% (n = 12) at one year.
The period of greatest mortality was within the first 12 weeks.
Time made a lesser contribution from then to one year, and there
was no impact of time on the rate of mortality thereafter. The rate
of mortality at one year was 41.2% for male patients (7 of 17) compared
with 33.3% for females (5 of 15). The rate of mortality at one year was 32% (225 of 702) for patients
with a fracture of the hip and 4% (9 of 221) for those with a fracture
of the wrist. There was no statistically significant difference
in the rate of mortality following a hip fracture and an odontoid
peg fracture (p = 0.95). However, the survivorship of the wrist
fracture group was much better than that of the odontoid peg fracture
group (p <
0.001). Thus, a fracture of the odontoid peg in the
elderly is not a benign injury and is associated with a high rate
of mortality, especially in the first three months after the injury. Cite this article:
The June 2013 Oncology Roundup360 looks at: whether allograft composite is superior to megaprosthesis in massive reconstruction; pain from glomus tumours; thromboembolism and orthopaedic malignancy; bone marrow aspirate and cavity lesions; metastasectomy in osteosarcoma; spinal giant cell tumour; post-atomic strike sarcoma; and superficial sarcomas and post-operative infection rates.
The June 2013 Foot &
Ankle Roundup360 looks at: soft-tissue pain following arthroplasty; pigmented villonodular synovitis of the foot and ankle; ankles, allograft and arthritis; open calcaneal fracture; osteochondral lesions in the longer term; severe infections in diabetic feet; absorbable first ray fixation; and showering after foot surgery.
The February 2013 Children’s orthopaedics Roundup360 looks at: ABC treated with suction and curettage; peri-acetabular osteotomy; cast index; Perthes’ disease associated with accidental injury; brachial plexus birth palsy; MRI assessment of DDH; total meniscectomy; and paediatric septic arthritis.
The April 2013 Knee Roundup360 looks at: graft tension and outcome; chondrocytes at the midterm; pre-operative deformity and failure; the designer effect; whether chondroitin sulphate really does work; whether ACL reconstruction is really required; analgesia after TKR; and degenerative meniscus.