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Orthopaedic Proceedings
Vol. 105-B, Issue SUPP_9 | Pages 65 - 65
17 Apr 2023
Tacchella C Lombardero SM Clutton E Chen Y Crichton M
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In this work, we propose a new quantitative way of evaluating acute compartment syndrome (ACS) by dynamic mechanical assessment of soft tissue changes. First, we have developed an animal model of ACS to replicate the physiological changes during the condition. Secondly, we have developed a mechanical assessment tool for quantitative pre-clinical assessment of ACS. Our hand-held indentation device provides an accurate method for investigations into the local dynamic mechanical properties of soft tissue and for in-situ non-invasive assessment and monitoring of ACS. Our compartment syndrome model was developed on the cranial tibial and the peroneus tertius muscles of a pig's leg (postmortem). The compartment syndrome pressure values were obtained by injecting blood from the bone through the muscle. To enable ACS assessment by a hand-held indentation device we combined three main components: a load cell, a linear actuator and a 3-axis accelerometer. Dynamic tests were performed at a frequency of 0.5 Hz and by applying an amplitude of 0.5 mm. Another method used to observe the differences in the mechanical properties inside the leg was a 3D Digital Image Correlation (3D-DIC). Videos were taken from two different positions of the pig's leg at different pressure values: 0 mmHg, 15 mmHg and 40 mmHg. Two strains along the x axis (Exx) and y axis (Eyy) were measured. Between the two pressure cases (15 mmHg and 40 mmHg) a clear deformation of the model is visible. In fact, the bigger the pressure, the more visible the increase in strain is. In our animal model, local muscle pressures reached values higher than 40 mmHg, which correlate with observed human physiology in ACS. In our presentation we will share our dynamic indentation results on this model to demonstrate the sensitivity of our measurement techniques. Compartment syndrome is recognised as needing improved clinical management tools. Our approach provides both a model that reflects physiological behaviour of ACS, and a method for in-situ non-invasive assessment and monitoring


Orthopaedic Proceedings
Vol. 105-B, Issue SUPP_16 | Pages 10 - 10
17 Nov 2023
Lim JW Ball D Johnstone A
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Abstract. Background. Progressive muscle ischaemia results in reduced aerobic respiration and increased anaerobic respiration, as cells attempt to survive in a hypoxic environment. Acute compartment syndrome (ACS) is a progressive form of muscle ischaemia that is a surgical emergency resulting in the production of Lactic acid by cells through anaerobic respiration. Our previous research has shown that it is possible to measure H+ ions concentration (pH) as a measure of progressive muscle ischaemia (in vivo) and hypoxia (in vitro). Our aim was to correlate intramuscular pH readings and cell viability techniques with the intramuscular concentration of key metabolic biomarkers [adenosine triphosphate (ATP), Phosphocreatine (PCr), lactate and pyruvate], to assess overall cell health in a hypoxic tissue model. Methods. Nine euthanised Wistar rats were used in a non-circulatory model. A pH catheter was used to measure real-time pH levels from one of the exposed gluteus medius muscles, while muscle biopsies were taken from the contralateral gluteus medius at the start of the experiment and subsequently at every 0.1 of a pH unit decline. The metabolic biomarkers were extracted from the snap frozen muscle biopsies and analyzed with standard fluorimetric method. Another set of biopsies were stained with Hoechst 33342, Ethidium homodimer-1 and Calcein am and imaged with a Zeiss LSM880 confocal microscope. Results. Our study shows that the direct pH electrode readings decrease with time and took an average of 69 minutes to drop to a pH of 6.0. The concentrations of ATP, pyruvate and PCr declined over time, and the concentration of lactate increased over time. At pH 6.0, both ATP and PCr concentrations had decreased by 20% and pyruvate has decreased by 50%, whereas lactate had increased 6-fold. The majority of cells were still viable at a pH of 6.0, suggesting that skeletal muscle cells are remarkably robust to hypoxic insult, although this was a hypoxic model where reperfusion was not possible. Conclusions. Our research suggests that histologically, skeletal muscle cells are remarkably robust to hypoxic insult despite the reduction in the total adenine nucleotide pool, but this may not reflect the full extent of cell injury and quite possibly irreversible injury. The timely restoration of blood flow in theory should halt the hypoxic insult, but late reperfusion results in cellular dysfunction and cell death due to localised free radical formation. Further research investigating the effects of reperfusion in vivo are warranted, as this may identify an optimal time for using pharmacological agents to limit reperfusion injury, around the time of fasciotomy to treat acute compartment syndrome. Declaration of Interest. (b) declare that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported:I declare that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research project


Orthopaedic Proceedings
Vol. 103-B, Issue SUPP_13 | Pages 32 - 32
1 Nov 2021
Amadio PC
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Carpal tunnel syndrome (CTS) is the most common condition affecting the hand, with a prevalence of 2–3% in most populations, and a lifetime incidence over 10%. There is consensus that CTS results from increased pressure in the carpal tunnel, which eventually affects nerve function, but, aside from direct trauma and space occupying lesions, there is no consensus on what causes the pressure to rise. In the absence of an identifiable biological mechanism, the most common treatment involves surgical opening of the carpal tunnel. Recent data suggests that CTS patients demonstrate, in the carpal tunnel synovium and subsynovial connective tissue (SSCT), evidence of cellular senescence, with a senescence associated secretory phenotype (SASP). This finding suggests the potential for a biological treatment for CTS with senolytic drugs. This presentation will review the evidence for CTS as a disease of cellular senescence, and our preliminary data on the effects of senolytics, including in a relevant animal model of CTS and SSCT fibrosis


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_9 | Pages 89 - 89
1 May 2017
Povoroznyuk V Orlyk T
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The aim of our study is to investigate the relation between the intensity of pain in the thoracic and lumbar spine and morphometric parameters of vertebrae in postmenopausal women. Materials and methods. We have examined 250 postmenopausal women aged 50–79 years divided into two groups: 171 women without vertebral deformations and 79 women with confirmed vertebral fractures. The duration of pain syndrome after fracture was over 6 months. The presence and intensity of pain syndrome in the thoracic and lumbar spine were assessed using a visual analog scale (VAS). Morphometric analysis of the vertebral parameters was carried out using the VFA software of the dual-energy X-ray densitometer «Prodigy» (GE Medical systems, Lunar, model 8743, 2005). Results. The intensity of pain syndrome in the lumbar spine significantly correlates with L1 vertebral indices: A/P (r=−0.37, p=0.01) and M/P (r=−0.29, p=0.03) in women with normal BMD. The intensity of pain in the thoracic region correlates with Th10 vertebral indices: A/P (r=−0.45, p=0.0004) and M/P (r=−0.35, p=0.01) in women with osteopenia. We have not determined any significant relationship between the level of back pain and vertebral body size index in women with osteoporosis and without vertebral fractures. In 11% patients with confirmed wedge and compression vertebral fractures chronic pain syndrome is absent, and the presence of other fractures does not increase the frequency of back pain syndrome (14%). The presence of vertebral fractures significantly increases the risk of pain in the thoracic spine (RR=1.32; 95% CI: 1.09–1.60, p= 0.004). In patients with vertebral fractures the intensity of pain in the thoracic spine significantly correlates with indices of Th11-Th12vertebrae, and relates to the number and localisation of vertebral fractures. The level of pain in the lumbar region does not depend on the location and number of damaged vertebrae. Conclusion. In postmenopausal women without osteoporosis and vertebral fractures level of pain may be associated with initial vertebral deformation, limiting the spine transition zone. The presence of vertebral fractures increases the risk of pain syndrome in the thoracic region depending on the location and number of damaged vertebrae


Orthopaedic Proceedings
Vol. 103-B, Issue SUPP_4 | Pages 97 - 97
1 Mar 2021
Reimer L Jacobsen JS Mechlenburg I
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Greater trochanteric pain syndrome (GTPS) is a common and disabling hip condition. Hypermobility has been suggested as a possible cause of GTPS. The purpose of this study was to report the prevalence of hypermobility and to investigate its impact on hip-related function and awareness in patients with GTPS. This cross-sectional study was based on a cohort of patients diagnosed with GTPS in the 2013–2015 period. Hypermobility was investigated with the Beighton Score and defined by a cut-off score ≥5. Data on patients' current hip function and awareness were collected with the questionnaires the Copenhagen Hip and Groin Outcome Score and the Forgotten Joint Score. A total of 612 patients with GTPS were identified based on the diagnosis system; out of those, 390 patients were assessed for eligibility, and 145 (37%) were included. The prevalence of hypermobility within this cohort was estimated to be 11% (95% confidence interval (CI): 3–26%) for males and 25% (95% CI: 17–34%) for females. No significant association was found between hypermobility and self- reported hip function and awareness. We recommend that future studies of GTPS will include hypermobility and investigate the consequences of hypermobility among patients with GTPS


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_31 | Pages 19 - 19
1 Aug 2013
Dolan R Burns L Lindsay J
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Utilization of nerve conduction studies in the investigation and management of carpal tunnel syndrome varies according to their perceived usefulness and availability. The use of steroid injections and splinting also varies according to service availability and their perceived effectiveness. We present a three year follow up of 230 patients managed in an environment where nerve conduction testing was not readily available. The majority received splinting and a steroid injection in an effort to manage their symptoms conservatively in the first instance. Our results show that a clear majority of patients who were treated with initial splinting and steroid injections saw a recurrence of their symptoms (71.9% and 79.7% respectively) requiring eventual surgical decompression. These results would seem to suggest that conservative management of carpal tunnel does not produce the desired curative results and that there may be an argument for proceeding directly to surgery. We also showed that 55% of patients referred for Nerve Conduction Studies seem to progress to surgical decompression. This would seem to suggest that Nerve Conduction Studies could form a robust part of the standard investigation of carpal tunnel in order to identify those who would benefit from surgery


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_9 | Pages 42 - 42
1 May 2017
Malahais MA Babis G Johnson E Kaseta M Chytas D Nikolaou V
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Background. To investigate the new theory of hydroneurolysis and hydrodissection in the treatment of carpal tunnel syndrome (CTS). Independently of the fluid hydrodissolution works due to mechanical forces and it may have some positive effects in patients with ischemic damage caused by scar tissue pressure at the nerve's surface. Methods. A prospective blind clinical study of 31 patients suffering from carpal tunnel syndrome, established by nerve conduction studies and clinical tests. 14 patients (out of 29), who refused to undergo an open operation as a treatment to their disease at this point of time, were treated with a simple ultrasound-guided injection at the proximal carpal tunnel. In order to exclude the biochemical influence of the fluid in the treating disease we choosed to infiltrate 3 cc. of normal saline 0,9%. In the follow-up period our group was asked to answer to a new Q-DASH score and visual analogue scale (VAS) 100/100 in 2, 4 and 8 weeks. Results. At the end of the second month we found only 2 out of 14 patients of the infiltration's group with clinical improvement. As far as the control group (17 patients), there was just one patient with recovery of the symptoms at the end of the second month who avoided operation. The rest 16 patients experienced insistence or worsening of CTS while they were waiting to be operated (mean time till operation in our department's waiting list: 2 months) and underwent a surgical decompression of the median nerve. Comparing the two groups in Q-DASH score, VAS 100/100 and ultrasound cross sectional area measurements we found no statistical difference between the two groups at the endpoint of our follow-up period. Conclusion. As far as nerve entrapment syndromes we proved that normal saline hydrodissolution appears to be non effective as a conservative treatment. The mechanical way of action seems to have only very short term effects. Level of Evidence. II


Orthopaedic Proceedings
Vol. 102-B, Issue SUPP_11 | Pages 38 - 38
1 Dec 2020
KIDO M IKOMA K SOTOZONO Y MAKI M OHASHI S TAKAHASHI K
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The purpose of this study was to compare the outcomes of arthroscopic unilateral surgery and simultaneous bilateral surgery for posterior ankle impingement syndrome (PAIS) in athletes and to evaluate the usefulness of simultaneous bilateral surgery. A total 48 hindfeet of 41 athletes (14 hindfeet of 14 males, 34 hindfeet of 27 females) who underwent arthroscopic surgery for PAIS were studied. Japanese society for surgery of the foot (JSSF) score and visual analogue scale (VAS) were compared before and after surgery, using Wilcoxon signed-rank test. The operation time and the time to return to sports activity were compared in 10 hindfeet of 5 patients who underwent simultaneous bilateral surgery and 38 hindfeet of 36 patients who underwent unilateral surgery, using Wilcoxon rank sum test. Classic ballet was the most common type of sport that caused PAIS (59%, 24/41 athletes). Soccer (10%, 4/41 athletes), baseball (10%, 4/41 athletes), badminton (5%, 2/41 athletes), volleyball (5%, 2/41 athletes), and athletics (5%, 2/41 athletes) followed. The JSSF score improved significantly from 72.7 preoperatively to 98.9 postoperatively in unilateral surgery, and significantly improved from 75.2 preoperatively to 99.0 postoperatively in simultaneous bilateral surgery. VAS significantly decreased from 64.7 preoperatively to 4.8 postoperatively in unilateral surgery, and significantly decreased from 72.7 preoperatively to 1.0 postoperatively in simultaneous bilateral surgery. The operating time was 53.7 minutes on average for unilateral surgery and 101.0 minutes for simultaneous bilateral surgery, significantly longer in bilateral simultaneous surgery. The mean time to return to sports activity was 4.8 weeks for unilateral surgery and 9.6 weeks for simultaneous bilateral surgery, significantly longer in simultaneous bilateral surgery. Both unilateral and simultaneous bilateral surgeries for PAIS in athletes were useful. It should be noted that the operating time and the time to return to sports will be longer. However, considering the 2 times hospitalizations and 2 times surgeries, simultaneous bilateral surgery is one of the treatment options for PAIS


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_9 | Pages 2 - 2
1 May 2017
Malahias M Nikolaou V Sourlas I Chytas D Chrysikopoulos K Babis G
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Background. We searched -in transverse ultrasound view- the value of the difference (Delta) between -proximal to the tunnel- CSA (a) and -in the tunnel's inlet- CSA (b) for separating normal from abnormal median nerves. Methods. 51 patients –suspicious for CTS- underwent Phalen and Tinnel tests. After that, we used a high frequency ultrasound to measure CSAa, CSAb and Delta CSA in both hands. 33 of our 51 patients did not experience any clinical symptoms at the contralateral hand, so that we could perform a comparative study of normal and pathological median nerves (on the same patients). Then, all of them completed a Q-DASH questionnaire and a visual analogue scale (VAS 100/100) and they carried through with a nerve conduction study (NCS). Results. We found that a CSAb more than 0,010 and a Delta CSA > 0,003 are both very sensitive findings for CTS, but only DeltaCSA has good specificity. Comparing to NCS the Delta CSA>0,003 had no statistical difference in sensitivity, specificity, true negative and true positive results. Furthermore, patients with Delta CSA>0,009 were suffering from heavy CTS according to NCS, Q-DASH and VAS. On the other way, a Delta CSA between 0,003 and 0,006 suggests a mild or moderate CTS. Conclusion. Delta CSA could be the golden standard for the detection of CTS in patients that feel uncomfortable to undergo NCS. We propose a grading scale that distinguish mild or moderate syndromes (where we could try a conservative treatment) from heavy syndromes and help as on decision-making


The Journal of Bone & Joint Surgery British Volume
Vol. 86-B, Issue 6 | Pages 906 - 911
1 Aug 2004
Kearns SR Daly AF Sheehan K Murray P Kelly C Bouchier-Hayes D

Compartment syndrome is a unique form of ischaemia of skeletal muscle which occurs despite patency of the large vessels. Decompression allows the influx of activated leucocytes which cause further injury. Vitamin C is a powerful antioxidant which concentrates preferentially in leucocytes and attenuates reperfusion-induced muscle injury. We have evaluated the use of pretreatment with oral vitamin C in the prevention of injury caused by compartment syndrome in a rat cremasteric muscle model. Acute and delayed effects of pretreatment with vitamin C were assessed at one and 24 hours after decompression of compartment syndrome. Muscle function was assessed electrophysiologically. Vascular, cellular and tissue inflammation was assessed by staining of intercellular adhesion molecule-1 (ICAM-1) and by determination of the activity of myeloperoxidase (MPO) in neutrophils and tissue oedema. Compartment syndrome impaired skeletal muscle function and increased the expression of ICAM-1, activity of MPO and muscle weight increased significantly. Pretreatment with vitamin C preserved muscle function and reduced the expression of ICAM-1, infiltration of the neutrophils and oedema


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_11 | Pages 176 - 176
1 Jul 2014
Dhir R Lambert S
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Summary Statement. Sprengel's deformity is a rare congenital anomaly, with scapula malposition. We present a unique subgroup of Sprengel's possessing a cleithrum, an ancestral remnant of shoulder-girdle development found in bony-fish. This challenges management providing valuable insight into scapular embryology and development. Introduction. Sprengel's deformity is a rare congenital anomaly of the shoulder girdle characterised by scapula malposition, associated with atrophy of periscapular muscles causing disfigurement and limited shoulder movement. Traditionally, it has been managed by omovertebral bar excision and muscle transplantation procedures guided by age and Cavendish grading. We present a unique, previously undescribed observation in humans: a case series of patients with Sprengel's deformity possessing a cleithrum, an ancestral remnant of shoulder-girdle development found in archaic bony fish. Methods. Nine patients presented with a so-called ‘Sprengel deformity’ to a tertiary referral shoulder clinic. All were assessed clinically and radiologically with scapular radiographs, and CT and/or MRI scans. The clinical (functional and cosmetic) and radiological features were classified according to Cavendish and Rigault systems, respectively and scapular ratio, assessed. Results. All patients were classed grade 4 on the Cavendish scale. Six were grade 2 and three were grade 3 on the Rigault scale. Mean scapular ratio was 1.04. Associated renal, craniocervical and cervicothoracic anomalies were present. The distinguishing surgical patho-anatomical feature was partial endomuscular ossification of medial scapular suspension muscles, analogous with the cleithrum of bony fish. The bone commonly articulated with the spinal column through pseudarthroses. Conclusions. This finding of the cleithrum not only challenges classic management of this rare patient group, as it cannot be managed by traditional muscle transplantation procedures, but offers insight into scapular embryology and development. The association of scapular developmental and urogenital anomalies suggests screening investigation of renal tracts in those with undescended scapula syndrome is relevant, and further genetic investigation might be pertinent to understand scapular development and pathology. We suggest, to emphasise the nature of the incomplete scapular descent and associated congenital anomalies, and clarify the imprecise common usage of the term ‘Sprengel’ this condition be called the ‘Congenital Undescended Scapula Syndrome


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVI | Pages 17 - 17
1 Aug 2012
Dheerendra S Khan W Smitham P Goddard N
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Background & Objectives. Sensory and motor manifestations in carpal tunnel syndrome (CTS) are well documented, whereas the associated autonomic dysfunction is often overlooked. The aim of this study is to demonstrate that autonomic dysfunction of the CTS hands can be quantified by measuring skin capacitance. Methods. Patients with clinical and electrophysiological signs of idiopathic carpal tunnel syndrome meeting the inclusion criteria were recruited. The patients were also scored based on the Brigham carpal tunnel severity score. Skin capacitance was measured using Corneometer CM825 (C&K Electronic, GmbH). The measurements were taken from the palmar aspect of distal phalanx of the index and little finger of the affected hand. Normal healthy patients with no signs and symptoms of carpal tunnel syndrome were recruited as controls and skin capacitance was measured in a similar fashion as the CTS group. Results. The CTS group consisted of 25 patients (18 female & 7 male) and 35 hands with an average age of 59.2 years (33-83 years). The mean symptom severity score was 2.80 (1.27-4.18; SD 0.82) and functional status score was 2.53 (1-4.26; SD 1.08). The mean ratio of skin hydration between the index and little finger was 0.85 (0.6-1.25; SD 0.155). Using the paired t-test to determine paired differences between index and little finger measurements, the mean difference was 12.6 (p<0.001). The control group consisted of 15 people (9 female and 6 male) and 30 hands. The average age was 47.3 years. The mean ratio of skin hydration between the index and little finger was 0.97 (0.77-1.42 SD 0.105). Using the paired t-test to determine paired differences between index and little finger measurements, the mean difference was 1.31 (p=0.317). The difference in skin hydration between the index and little finger was directly compared between the controls and CTS group, this difference was statistically significant, p=0.002. Conclusion. A simple method to determine dysautonomia, using Corneometer CM825, by the clinician has been demonstrated. Measurement of skin capacitance will reduce the dependence on electrophysiological studies, thus reducing the time for arriving at a diagnosis, improved patient satisfaction and cost-effectiveness


Orthopaedic Proceedings
Vol. 100-B, Issue SUPP_16 | Pages 26 - 26
1 Nov 2018
Oishi T Kobayashi N Inaba Y Kobayashi D Higashihira S Saito T
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The pathology of the posterior acetabular legion in femoroacetabular impingement (FAI) syndrome, so called “contre-coup region”, is still unclear. . 18. F-fluoride positron emission tomography (PET) is a functional imaging modality, which reflects the osteoblast activity. Recent technological advances in PET combined with computed tomography (CT) imaging allowed us to obtain detailed 3-dimensional (3D) morphological information. We evaluated the abnormal uptake of . 18. F-fluoride PET/CT on posterior acetabular lesion in FAI syndrome cases. We enrolled forty-one hips from 41 patients who were diagnosed as FAI syndrome and were performed . 18. F-fluoride PET/CT between October 2014 and October 2016. In each hip, the maximum standardized uptake value (SUV. max. ) on the posterior acetabular was measured. The cases were divided into 4 groups; cam-type (11 cases), pincer-type (7), combined-type (11), dysplastic developmental hip (DDH) with cam morphology (12). The average SUV. max. of the pincer-type was significantly smaller than that of the other 3 groups (p < .05). The percentage of the cases with SUV. max. ≥ 6 was 81.8% in cam-type, 28.6% in pincer-type, 90.9% in combined-type, 91.7% in DDH with cam morphology. Furthermore, the average degree of α angle of the cases of SUV. max. ≥ 6 was significantly higher than that of the cases of SUV. max. < 6 (p = .005). Although actual biomechanical mechanism in contre-coup region is still controversial, this result indicated that the cam morphology related to the posterior acetabular lesion with accelerated bone metabolism


Orthopaedic Proceedings
Vol. 99-B, Issue SUPP_8 | Pages 74 - 74
1 Apr 2017
Raval P Ogollah R Hall A Foster N Roddy E
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Introduction. Subacromial corticosteroid injection is widely used in the treatment of Subacromial Impingement Syndrome (SIS). There is increasing interest in using ultrasound (US) to improve the accurate placement of injections. This study investigated whether the accuracy of placement of US-guided subacromial corticosteroid injections influences patients' outcome of pain and function. Method. Secondary analysis of data from a 2−2 factorial randomised controlled trial investigating exercise and corticosteroid injection for pain and function in SIS. US-guided injections were delivered according to a pre-defined protocol. Video images were reviewed to categorise accuracy of injection into the subacromial bursa into 3 accuracy groups using pre-defined criteria: 1) not in the subacromial bursa; 2) probably in the subacromial bursa; and 3) definitely in the subacromial bursa. The primary outcome measure was the self-reported Shoulder Pain and Disability Index (SPADI) total score, compared at 6 weeks and 6 months. Secondary outcomes included SPADI pain and function subscales and participant global rating of overall change from baseline. A mixed effects model was used to compare accuracy groups' outcomes at 6 weeks and 6 months, adjusted for baseline covariates. Results. US-guided injection accuracy data were available for 114 participants; with 22 participants in group 1, 21 in group 2 and 71 in group 3. There were no significant differences in mean SPADI scores among the three injection accuracy groups at 6 weeks (group 2 vs. 1: 8.22 (95% CI −4.01, 20.50); group 3 vs. 1: −0.57 (−10.27, 9.13)) and 6 months (group 2 vs. 1: 12.38 (−5.34, 30.10); group 3 vs. 1: 3.10 (−11.04, 17.23)). Similarly, no differences between accuracy groups were seen in SPADI pain, SPADI function or participant global rating of change. Conclusion. The accuracy of US-guided subacromial corticosteroid injection in SIS does not influence clinical response to the injection, questioning the need for guided injections. Larger, adequately powered studies are required to explore this further


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_13 | Pages 4 - 4
1 Mar 2013
McCarthy I Kostic D Hu X Tan W Sathiananda S Cohen H Wolman R
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We have studied patients with Joint Hypermobility Syndrome (JHS) admitted to the Royal National Orthopaedic Hospital (RNOH) for a three-week in-patient rehabilitation programme. Ten patients were investigated at the start and end of this programme, and so far eight patients have been followed up at three months review. Postural stability was measured using a force plate, and the path of the centre of force (CoF) was tracked while patients were asked to attempt a series of more challenging tasks: double leg stance with eyes open and then with eyes closed, followed by single leg stance with eyes open and closed. Patients also completed a number of questionnaires at the same time points. We found the results of the double stance eyes closed test of postural stability to be the most informative. The ellipse area (EA) containing 95% of the points of the path of the CoF decreased from 21.5 + 14.8 cm2 to 9.0 + 11.5 cm2 over the course of the in-patient programme. In the eight patients followed up at three months, EA has remained the same (9.6 + 14.6 cm2). We conclude that the effects of the exercise programme and advice on subsequent exercise can be maintained over three months


The Journal of Bone & Joint Surgery British Volume
Vol. 80-B, Issue 2 | Pages 365 - 369
1 Mar 1998
Abraham P Leftheriotis G Saumet JL

Chronic compartment syndrome (CCS) is usually considered to be due to ischaemia of muscle. We have attempted to use the direct measurement of muscle blood flow for diagnosis since the assessment of intracompartmental pressure does not provide accurate knowledge of the vascular state. We recorded simultaneously continuous measurements of the laser Doppler flow (LDF) in muscle and the intracompartment pressure (ICP) after exercise in seven patients with CCS, and in seven control subjects. The mean ICP was 74.1 ± 4.4 mmHg in CCS patients and 24.2 ± 3.4 mmHg in control subjects one minute after exercise, decreasing to 34.6 ± 2.3 mmHg and 15.0 ± 1.6 mmHg at 20 min, respectively. The LDF was 0.80 ± 0.11 arbitrary units (AU) in control subjects and 1.09 ± 0.14 AU in CCS patients one minute after exercise, and 0.41 ± 0.11 AU and 0.27 ± 0.04 AU, respectively, at the end of the recovery period. The ICP showed a progressive decrease over time in both groups. The LDF decreased sharply during the first minutes of recovery in control subjects, but in patients with CCS there was a delayed hyperaemic peak with blood flow reaching 0.84 ± 0.10 AU at nine minutes as against 0.33 ± 0 .06 AU for control subjects (p < 0.01). The ICP increased in both control subjects and CCS patients after exercise with no clear cut-off point between the groups. By contrast, changes in muscle blood flow over time were clearly different between control subjects and patients with CCS. For this reason, LDF should be investigated further as a technique for the diagnosis of CCS


The Journal of Bone & Joint Surgery British Volume
Vol. 85-B, Issue 2 | Pages 299 - 305
1 Mar 2003
Hyvönen P Melkko J Lehto VP Jalovaara P

Our aim was to evaluate bursal involvement at different stages of the impingement syndrome as judged by conventional histopathological examination and expression of tenascin-C, which is known to reflect active reparative processes in different tissues and disorders. Samples of subacromial bursa were taken from 33 patients with tendinitis, 11 with a partial tear and 18 with a complete tear of the rotator cuff, and from 24 control shoulders. We assessed the expression of tenascin-C, the thickness of the bursa, and the occurrence and degree of fibrosis, vascularity, haemorrhage and inflammatory cells. The expression of tenascin-C was significantly more pronounced in the complete tear group (p < 0.001) than in the partial tear, tendinitis or control groups. It was more pronounced in the tendinitis group than in the control group (p = 0.06), and there was more fibrosis in all the study groups than in the control group. The changes in the other parameters were not equally distinctive. Expression of tenascin-C did not correlate with the conventional histopathological parameters, suggesting that these markers reflect different phases of the bursal reaction. Tenascin-C seems to be a general indicator of bursal reaction, being especially pronounced at the more advanced stages of impingement and this reaction seems to be an essential part of the pathology of impingement at all its stages


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XVIII | Pages 91 - 91
1 May 2012
Hindmarsh D Davenport J Selvaratnam V Ampat G
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Background. Recent articles in the medical press highlight the potential dangers of Cauda Equina Syndrome (CES). CES has the highest rates of litigation due to its long-term neurological impairment, which can lead to devastating outcome on patients. The aim of this study was to assess health care professionals knowledge with regards to the urinary symptoms of CES and the timeframe in which treatment should be offered. Objectives. To assess health care professionals knowledge with regards to urinary symptoms of CES and when treatment should be offered. Design. A 4-part questionnaire established profession and number of cases seen per week. The participant was asked to rank 15 urinary symptoms, 7 of these symptoms were not related to CES. The participants were asked the ideal time to surgical intervention for Complete CES and Incomplete CES. Setting. Primary and Secondary Care. Participants. 60 questionnaires were complete. Participants had to successfully complete the first three parts of the questionnaire (n = 44). Any who failed to complete section four were excluded from analysis from that part only (n = 41). Interventions. Nil. Outcome measures. As design. Results. A total of 44 questionnaires were analysed. Both doctors and physiotherapists ranked the CES symptoms on average significantly higher than then the non-CES symptoms. The physiotherapists rated the CES symptoms significantly higher than the doctors (P = 0.05) and on average rated the non-CES symptoms significantly lower than doctors (P < 0.05). 87.8% thought that complete CES should be treated < 24 hours and 9.76% thought that complete CES should be treated from 24-48 hours. 46.34% thought that CESI should be treated < 24 hours and 43.9% thought that CESI should be treated from 24-48 hours. Conclusion. These results demonstrate that physiotherapists are better than Doctors at identifying the urinary symptoms in CES. The majority of health care professional who took part in this study stated that they would offer surgical intervention for both Complete and Incomplete CES within 24 hours. The gap in knowledge highlights the need for education to all medical professionals in the symptoms of CES and also the timing of treatment


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_7 | Pages 19 - 19
1 Apr 2014
Baird E Duncan R
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The purpose of this study was to describe the clinical course of patients with Down's syndrome (DS) and congentital talipes equinovarus (CTEV) treated with the Ponseti regimen. The members of the United Kingdom Ponseti Users Group were contacted to provide details of patients with DS and CTEV, whom they had treated using the Ponseti regimen. Nine patients (13 feet: 7 right, 6 left) were identified, and the case notes were reviewed. Six patients were male, 3 female. In all but one case, the DS was diagnosed postnatally. Co-morbidites included atrioventricular septal defect, hearing deficiencies and plagiocephaly. The initial mean Pirani score was 4.5 (range 3.0 to 6.0). Casting was commenced at a mean of 25 days (range 12–84 days). The mean number of casts required was 7 (range 3 to 12), taking a mean of 6.5 weeks (range 3–12) to achieve correction. 6 of the 13 feet (46%) required a tendoachilles tenotomy, and 2 of 13 (15%) required re-casting. No patients have required a tibialis anterior transfer, soft tissue releases or bony procedures, at a mean follow up of 44 months (9–65 months). The results of the Ponseti regimen have not been described in patients with DS. From this small series, we can conclude that all patients responded to the regime. A tendoachilles tenotomy was required in just under half, and further casting was required in only 15% of the treated feet. No patient has required further surgery. The tenotomy rate is lower than in most series, but otherwise, the results are comparable to those for idiopathic CTEV for which the Ponseti regimen has become the gold standard. Parents of children with DS can be reassured that in the short term their feet will respond well to Ponseti treatment


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XVIII | Pages 98 - 98
1 May 2012
Dando M Sparkes V
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Aim. To identify differences in hip muscle strength, knee valgus during a single leg squat (SLS),and function between subjects with Greater Trochanter Pain Syndrome (GTPS) and healthy(H) subjects. To determine associations between pain, function, hip strength and SLS in GPTS subjects. Study Design: Observational study of 14 (3 male 11 female) PFP patients (mean symptom duration 17 months), matched for age height and weight with 14 healthy (H) subjects, All subjects fulfilled specific inclusion and exclusion criteria. Appropriate Ethical approval was obtained. Measures for both groups were Knee valgus angle during SLS using 2D motion capture and SiliconCoach software for measurement of knee valgus angles, hip abduction, internal and external rotation muscle strength using hand held dynamometry, visual analogue scale for pain. Lower Extremity Functional Scale (LEFS). All measures were taken on the affected leg for GPTS subjects and matched for the equivalent leg in healthy group. Strength was reported as a percentage of body weight. SiliconCoach was reliable for intra-rater reliability of knee valgus angle (ICC.996). Results. There were no significant differences in age, height and weight (p=.85,.57,.51 respectively). Significant differences existed in hip abduction strength p=.005(GPTS13.72 (7.65), H21.49 (5.55)) and LEFS p=0.001(GPTS 57.28(16.55), H76.92(4.44)). There were no significant differences in internal and external rotation and knee valgus angles p=.509, p=.505, p=.159 respectively. There was a negative correlation between pain and function r=.879) p=0.001) and a moderate positive correlation between function and hip abduction strength r=.428 (p=.127). This preliminary study shows that patients with GPTS have reduced strength in hip abductor musculature when compared to healthy subjects. This may be due to pain inhibition; however the true causes of pain need to be determined. Pain and to a lesser extent hip abductor strength appears to have an effect on function in GPTS patients. In summary the results indicate that hip abductor muscle strengthening and management strategies to reduce pain should be included in the rehabilitation programmes of patients with GPTS. Further research with larger numbers of subjects should be developed to investigate this subject