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The Bone & Joint Journal
Vol. 95-B, Issue 3 | Pages 407 - 410
1 Mar 2013
Legg AJ Hamer AJ

We have recently shown that waste heat from forced-air warming blankets can increase the temperature and concentration of airborne particles over the surgical site. The mechanism for the increased concentration of particles and their site of origin remained unclear. We therefore attempted to visualise the airflow in theatre over a simulated total knee replacement using neutral-buoyancy helium bubbles. Particles were created using a Rocket PS23 smoke machine positioned below the operating table, a potential area of contamination. The same theatre set-up, warming devices and controls were used as in our previous study. This demonstrated that waste heat from the poorly insulated forced-air warming blanket increased the air temperature on the surgical side of the drape by > 5°C. This created convection currents that rose against the downward unidirectional airflow, causing turbulence over the patient. The convection currents increased the particle concentration 1000-fold (2 174 000 particles/m. 3. for forced-air warming vs 1000 particles/m. 3. for radiant warming and 2000 particles/m. 3. for the control) by drawing potentially contaminated particles from below the operating table into the surgical site. Cite this article: Bone Joint J 2013;95-B:407–10


The Bone & Joint Journal
Vol. 99-B, Issue 11 | Pages 1545 - 1551
1 Nov 2017
Makki D Elgamal T Evans P Harvey D Jackson G Platt S

Aims

The aim of this paper was to present the clinical features of patients with musculoskeletal sources of methicillin-sensitive Staphylococcus aureus (MSSA) septicaemia.

Patients and Methods

A total of 137 patients presented with MSSA septicaemia between 2012 and 2015. The primary source of infection was musculoskeletal in 48 patients (35%). Musculoskeletal infection was considered the primary source of septicaemia when endocarditis and other obvious sources were excluded. All patients with an arthroplasty at the time were evaluated for any prosthetic involvement.


Bone & Joint 360
Vol. 6, Issue 4 | Pages 13 - 15
1 Aug 2017


The Journal of Bone & Joint Surgery British Volume
Vol. 88-B, Issue 12 | Pages 1660 - 1665
1 Dec 2006
Surendran S Kim SH Jee BK Ahn SH Gopinathan P Han CW

We stably transfected early passage chondrocytes with an anti-apoptotic Bcl-2 gene in vitro using a retrovirus vector. Samples of articular cartilage were obtained from 11 patients with a mean age of 69 years (61 to 75) who were undergoing total knee replacement for osteoarthritis. The Bcl-2-gene-transfected chondrocytes were compared with non-transfected and lac-Z-gene-transfected chondrocytes, both of which were used as controls. All three groups of cultured chondrocytes were incubated with nitric oxide (NO) for ten days. Using the Trypan Blue exclusion assay, an enzyme-linked immunosorbent assay and flow cytometric analysis, we found that the number of apoptotic chondrocytes was significantly higher in the non-transfected and lac-Z-transfected groups than in the Bcl-2-transfected group (p < 0.05). The Bcl-2-transfected chondrocytes were protected from NO-induced impairment of proteoglycan synthesis. We conclude that NO-induced chondrocyte death involves a mechanism which appears to be subject to regulation by an anti-apoptotic Bcl-2 gene. Therefore, Bcl-2 gene therapy may prove to be of therapeutic value in protecting human articular chondrocytes


The Journal of Bone & Joint Surgery British Volume
Vol. 93-B, Issue 12 | Pages 1679 - 1679
1 Dec 2011
Scott J

P. Bollars, J.-P. Luyckx, B. Innocenti, L. Labey, J. Victor, J. Bellemans.Femoral component loosening in high-flexion total knee replacement: An in vitro comparison of high-flexion versus conventional designs. J Bone Joint Surg Br 2011 93-B: 1355-1361


Bone & Joint 360
Vol. 6, Issue 3 | Pages 14 - 16
1 Jun 2017


The Bone & Joint Journal
Vol. 99-B, Issue 7 | Pages 917 - 920
1 Jul 2017
Bloch BV Shah A Snape SE Boswell TCJ James PJ

Aims

Infection following total hip or knee arthroplasty is a serious complication. We noted an increase in post-operative infection in cases carried out in temporary operating theatres. We therefore compared those cases performed in standard and temporary operating theatres and examined the deep periprosthetic infection rates.

Patients and methods

A total of 1223 primary hip and knee arthroplasties were performed between August 2012 and June 2013. A total of 539 (44%) were performed in temporary theatres. The two groups were matched for age, gender, body mass index and American Society of Anesthesiologists grade.


Bone & Joint 360
Vol. 6, Issue 5 | Pages 35 - 38
1 Oct 2017


Bone & Joint 360
Vol. 6, Issue 2 | Pages 14 - 17
1 Apr 2017


The Bone & Joint Journal
Vol. 100-B, Issue 1 | Pages 6 - 10
1 Jan 2018
Lovelock TM Broughton NS

The number of arthroplasties of the hip and knee is predicted to increase rapidly during the next 20 years. Accompanying this is the dilemma of how to follow-up these patients appropriately. Current guidelines recommend long-term follow-up to identify patients with aseptic loosening, which can occur more than a decade postoperatively. The current guidelines and practices of orthopaedic surgeons vary widely. Existing models take up much clinical time and are expensive. Pilot studies using ‘virtual’ clinics and advanced-practice physiotherapists have shown promise in decreasing the time and costs for orthopaedic surgeons and patients.

This review discusses current practices and future trends in the follow-up of patients who have an arthroplasty.

Cite this article: Bone Joint J 2018;100-B:6–10.


The Bone & Joint Journal
Vol. 99-B, Issue 5 | Pages 623 - 631
1 May 2017
Blaney J Harty H Doran E O’Brien S Hill J Dobie I Beverland D

Aims

Our aim was to examine the clinical and radiographic outcomes in 257 consecutive Oxford unicompartmental knee arthroplasties (OUKAs) (238 patients), five years post-operatively.

Patients and Methods

A retrospective evaluation was undertaken of patients treated between April 2008 and October 2010 in a regional centre by two non-designing surgeons with no previous experience of UKAs. The Oxford Knee Scores (OKSs) were recorded and fluoroscopically aligned radiographs were assessed post-operatively at one and five years.


The Bone & Joint Journal
Vol. 99-B, Issue 9 | Pages 1190 - 1196
1 Sep 2017
Swarup I Henn CM Nguyen JT Dines DM Craig EV Warren RF Gulotta LV Henn III RF

Aims

Few studies have evaluated the relationship between patients’ pre-operative expectations and the outcome of orthopaedic procedures. Our aim was to determine the effect of expectations on the outcome after primary anatomical total shoulder arthroplasty (TSA). We hypothesised that patients with greater expectations would have better outcomes.

Patients and Methods

Patients undergoing primary anatomical TSA completed the Hospital for Special Surgery’s Shoulder Expectations Survey pre-operatively. The American Shoulder and Elbow Surgeons (ASES), Shoulder Activity Scale (SAS), Short-Form-36 (SF-36), and visual analogue scale (VAS) for pain, fatigue, and general health scores were also collected pre-operatively and two years post-operatively. Pearson correlations were used to assess the relationship between the number of expectations and the outcomes. Differences in outcomes between those with higher and lower levels of expectations for each expectation were assessed by independent samples t-test. Multivariable linear regression analysis was used to control for potential confounding factors.


The Bone & Joint Journal
Vol. 99-B, Issue 7 | Pages 912 - 916
1 Jul 2017
Vandeputte F Vandenneucker H

Aims

The aim of this study was to compare the outcome of revision total knee arthroplasty (TKA) with and without proximalisation of the tibial tubercle in patients with a failed primary TKA who have pseudo patella baja.

Patients and Methods

All revision TKAs, performed between January 2008 and November 2013 at a tertiary referral University Orthopaedic Department were retrospectively reviewed. Pseudo patella baja was defined using the modified Insall-Salvati and the Blackburne-Peel ratios. A proximalisation of the tibial tubercle was performed in 13 patients with pseudo patella baja who were matched with a control group of 13 patients for gender, age, height, weight, body mass index, length of surgery and Blackburne-Peel ratio. Outcome was assessed two years post-operatively using the Knee Society Score (KSS).


The Bone & Joint Journal
Vol. 99-B, Issue 10 | Pages 1298 - 1303
1 Oct 2017
Schouten R Malone AA Frampton CM Tiffen C Hooper G

Aims

The primary aim of this independent prospective randomised trial was to compare serum metal ion levels for ceramic-on-metal (CoM) and metal-on-metal (MoM) bearing surfaces in total hip arthroplasty (THA). Our one-year results demonstrated elevation in metal ion levels above baseline with no significant difference between the CoM and MoM groups. This paper reviews the five-year data.

Patients and Methods

The implants used in each patient differed only in respect to the type of femoral head (ceramic or metal). At five-year follow-up of the 83 enrolled patients, data from 67 (36 CoM, 31 MoM) was available for comparison.


The Bone & Joint Journal
Vol. 100-B, Issue 3 | Pages 294 - 295
1 Mar 2018
Sprowson† AP Jensen C Ahmed I Parsons N Partington P Emmerson K Carluke I Asaad S Pratt R Muller S Reed MR


Bone & Joint 360
Vol. 7, Issue 2 | Pages 40 - 42
1 Apr 2018
Foy MA


The Bone & Joint Journal
Vol. 99-B, Issue 7 | Pages 951 - 957
1 Jul 2017
Poole WEC Wilson DGG Guthrie HC Bellringer SF Freeman R Guryel E Nicol SG

Aims

Fractures of the distal femur can be challenging to manage and are on the increase in the elderly osteoporotic population. Management with casting or bracing can unacceptably limit a patient’s ability to bear weight, but historically, operative fixation has been associated with a high rate of re-operation. In this study, we describe the outcomes of fixation using modern implants within a strategy of early return to function.

Patients and Methods

All patients treated at our centre with lateral distal femoral locking plates (LDFLP) between 2009 and 2014 were identified. Fracture classification and operative information including weight-bearing status, rates of union, re-operation, failure of implants and mortality rate, were recorded.


The Bone & Joint Journal
Vol. 100-B, Issue 4 | Pages 475 - 479
1 Apr 2018
Ali AA Forrester RA O’Connor P Harris NJ

Aims

The aim of this study was to present a series of patients with aseptic failure of a total ankle arthroplasty (TAA) who were treated with fusion of the hindfoot using a nail.

Patients and Methods

A total of 23 TAAs, in 22 patients, were revised for aseptic loosening and balloon osteolysis to a hindfoot fusion by a single surgeon (NH) between January 2012 and August 2014. The procedure was carried out without bone graft using the Phoenix, Biomet Hindfoot Arthrodesis Nail. Preoperative investigations included full blood count, CRP and ESR, and radiological investigations including plain radiographs and CT scans. Postoperative plain radiographs were assessed for fusion. When there was any doubt, CT scans were performed.


Bone & Joint 360
Vol. 6, Issue 3 | Pages 35 - 37
1 Jun 2017


Bone & Joint 360
Vol. 7, Issue 2 | Pages 12 - 15
1 Apr 2018