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Orthopaedic Proceedings
Vol. 103-B, Issue SUPP_10 | Pages 8 - 8
1 Aug 2021
Clewes P Lohan C Stevenson H Coates G Wood R Blackburn S Tritton T Knaggs R Dickson A Walsh D
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Due to limitations of existing pharmacological therapies for the management of chronic pain in osteoarthritis (OA), surgical interventions remain a major component of current standard of care, with total joint replacements (TJRs) considered for people who have not responded adequately to conservative treatment. This study aimed to quantify the economic burden of moderate-to-severe chronic pain in patients with OA in England prior to TJR.

A retrospective, longitudinal cohort design was employed using Clinical Practice Research Datalink GOLD primary care data linked to Hospital Episode Statistics secondary care data in England. Patients (age ≥18 years) with an existing OA diagnosis of any anatomical site (Read/ICD-10) were indexed (Dec-2009 to Nov-2017) on a moderate-to-severe pain event (which included TJR) occurring within an episode of chronic pain. 5-year TJR rates from indexing were assessed via Kaplan-Meier estimates. All-cause healthcare resource utilisation and direct medical costs were evaluated in the 1–12 and 13–24 months prior to the first TJR experienced after index. Statistical significance was assessed via paired t-tests.

The study cohort comprised 5,931 eligible patients (57.9% aged ≥65 years, 59.2% female). 2,176 (36.7%) underwent TJR (knee: 54.4%; hip: 42.8%; other: 2.8%). The 5-year TJR rate was 45.4% (knee: 24.3%; hip: 17.5%; other: 6.8%). Patients experienced more general practitioner consultations in 1–12 months pre-TJR compared with 13–24 months pre-TJR (means: 12.13 vs. 9.61; p<0.0001), more outpatient visits (6.68 vs. 3.77; p<0.0001), more hospitalisations (0.74 vs. 0.62; p=0.0032), and more emergency department visits (0.29 vs. 0.25, p=0.0190). Total time (days) spent as an inpatient was higher in 1–12 months pre-TJR (1.86 vs. 1.07; p<0.0001). Mean total per-patient cost pre-TJR increased from £1,771 (13–24 months) to £2,621 (1–12 months) (p<0.0001).

Resource-use and costs incurred were substantially greater in the 12 months immediately prior to TJR, compared with 13–24 months prior. Reasons for increased healthcare and economic burden in the pre-TJR period deserve further exploration as potential targets for efforts to improve patient experience and efficiency of care.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXIX | Pages 157 - 157
1 Sep 2012
Singhal R Perry D Khan F Cohen D Stevenson H James L Sampath J Bruce C
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Background

Establishing the diagnosis in a child presenting with an atraumatic limp can be difficult. Clinical prediction algorithms have been devised to distinguish septic arthritis (SA) from transient synovitis (TS). Within Europe measurement of the Erythrocyte Sedimentation Rate (ESR) has largely been replaced with assessment of C-Reactive Protein (CRP) as an acute phase protein. We produce a prediction algorithm to determine the significance of CRP in distinguishing between TS and SA.

Method

All children with a presentation of ‘atraumatic limp’ and a proven effusion on hip ultrasound between 2004 and 2009 were included. Patient demographics, details of the clinical presentation and laboratory investigations were documented to identify a response to each of the four variables (Weight bearing status, WCC >12,000 cells/m3, CRP >20mg/L and Temperature >38.5°C). SA was defined based upon culture and microscopy of the operative findings.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVI | Pages 11 - 11
1 Aug 2012
Singhal R Perry D Khan F Cohen D Stevenson H James L Sampath J Bruce C
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Background

Establishing the diagnosis in a child presenting with an atraumatic limp can be challenging. There is particular difficulty distinguishing septic arthritis (SA) from transient synovitis (TS) and consequently clinical prediction algorithms have been devised to differentiate the conditions using the presence of fever, raised erythrocyte sedimentation rate (ESR), raised white cell count (WCC) and inability to weight bear. Within Europe measurement of the ESR has largely been replaced with assessment of C-reactive protein (CRP) as an acute phase protein. We have evaluated the utility of including CRP in a clinical prediction algorithm to distinguish TS from SA.

Method

All children with a presentation of ‘atraumatic limp’ and a proven effusion on hip ultrasound between 2004 and 2009 were included. Patient demographics, details of the clinical presentation and laboratory investigations were documented to identify a response to each of four variables (Weight bearing status, WCC >12,000 cells/m3, CRP >20mg/L and Temperature >38.5 degrees C. The definition of SA was based upon microscopy and culture of the joint fluid collected at arthrotomy.


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_II | Pages 189 - 190
1 May 2011
Panchani S Stevenson H Gudena R James L Bruce C
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Introduction: There is a paucity in the literature regarding the long term outcome of children with septic hips. Often, there is a delay in diagnosis which may lead to complications such as growth arrest, deformity and leg length discrepancy. We investigated the outcome of these patients and report the observed complications.

Methods: We performed a retrospective review of all children who underwent arthrotomy and washout for septic arthritis of the hip over a ten year period. Patients were identified from hospital databases and the coding department. Medical records were reviewed and data including demographics, method of presentation, laboratory investigations and outcome were recorded.

Results: We analysed the records of 70 patients who underwent formal arthrotomy and washout of their septic hip. Two patients had bilateral washouts (n = 72 hips). There were 36 (51%) female patients. 24 patients were under 1 year of age at presentation, with 11 of these in the neonatal period.

Temperature data was available for 48 patients, with a mean of 38.2 degrees Celsius at presentation. The mean ESR was 55.8. 28 patients (40%) grew an organism on culture of the hip fluid. The most common organism was Staphylococcus Aureus (64% of positive cultures).

66% (n=16) of patients in the < 1 year old group developed complications relating to growth arrest and leg length discrepancy. Seven of these patients (43%) underwent further surgery to correct deformity at a later date. In contrast, only 4.3% of patients in the > 1 year old group developed complications. The mean delay to surgery in patients who developed complications was 6.3 days with a mean delay to surgery of 3.1 days in patients who did not develop complications (p = 0.03, student’s T-Test).

Discussion: Paediatric Septic Arthritis remains a complex issue for both the patient and the surgeon. We have demonstrated that an increased delay in patients undergoing washout can lead to increased complications although this predominantly affects patients under 1 year of age. This can be explained by the lack of clinical signs in a < 1 year old child. Clinicians should have a high index of suspicion of septic arthritis in patients with features of sepsis with an unknown cause.