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Orthopaedic Proceedings
Vol. 105-B, Issue SUPP_14 | Pages 3 - 3
10 Oct 2023
Verma S Malaviya S Barker S
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Technological advancements in orthopaedic surgery have mainly focused on increasing precision during the operation however, there have been few developments in post-operative physiotherapy. We have developed a computer vision program using machine learning that can virtually measure the range of movement of a joint to track progress after surgery. This data can be used by physiotherapists to change patients’ exercise regimes with more objectively and help patients visualise the progress that they have made. In this study, we tested our program's reliability and validity to find a benchmark for future use on patients.

We compared 150 shoulder joint angles, measured using a goniometer, and those calculated by our program called ArmTracking in a group of 10 participants (5 males and 5 females). Reliability was tested using adjusted R squared and validity was tested using 95% limits of agreement. Our clinically acceptable limit of agreement was ± 10° for ArmTracking to be used interchangeably with goniometry.

ArmTracking showed excellent overall reliability of 97.1% when all shoulder movements were combined but there were lower scores for some movements like shoulder extension at 75.8%. There was moderate validity shown when all shoulder movements were combined at 9.6° overestimation and 18.3° underestimation.

Computer vision programs have a great potential to be used in telerehabilitation to collect useful information as patients carry out prescribed exercises at home. However, they need to be trained well for precise joint detections to reduce the range of errors in readings.


Orthopaedic Proceedings
Vol. 98-B, Issue SUPP_18 | Pages 5 - 5
1 Nov 2016
Mcmillan T Neilly D Gardner T Cairns D Kumar K Barker S
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Lateral Epicondylitis is a common condition caused by angiofibroblastic hyperplasia of the tendinous insertion. Its treatment is varied and includes rest, physiotherapy, corticosteroid injection and surgical release. Of late, the role of Platelet Rich Plasma (PRP) injections have been explored, with positive results.

We prospectively assessed the outcomes of lateral epicondylitis treated with PRP injections and compared the outcomes of ultrasound guided and ‘blind’ injection.

This was a single centre prospective cohort study. Patient were assessed with the Disabilities of the Arm, Shoulder and Hand (DASH) Score. PRP was injected into and around the common extensor origin either with or without ultrasound guidance. The primary outcome measure was DASH score at 3 months.

45 (23F:22M) patients were recruited. The mean age was 50 years (range 35 to 79). The mean duration of follow-up was 106 days. The average pre-injection DASH score for both groups combined was 45.5 (11.7–87.5). The mean DASH score at 3 months follow-up was 27.7. The ultrasound guided injection group had a mean improvement in DASH score from 45.5 to 31.2. The “blind” injection group had a mean improvement in DASH from 44.4 to 27.7. No complications were noted. There was no statistically significant difference in improvement in DASH score between the two groups.

Our study provides further evidence to support of the use of PRP injections in the treatment of epicondylitis of the elbow. Interestingly, however, we found that the use of Ultrasound guidance does not appear to improve patient outcomes.


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_17 | Pages 9 - 9
1 Dec 2015
Hamlin K Barker S McKenna S Munro C Kumar K
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The best surgical treatment of lateral epicondylitis remains uncertain. Recently radiofrequency microtenotomy (RFMT) has been proposed as a suitable surgical treatment. We aim to compare open release with RFMT and present the results of our randomised controlled trial.

Patients with symptoms of tennis elbow for at least 6 months who had failed to respond to conservative management were included in the trial. They were randomised to open release or RFMT. Outcome measures included grip strength, pain and DASH scores.

41 patients were randomised, 23 to RFMT and 18 to open release, 2 patients withdrew from the study. Our results show that both treatments give a significant benefit at all time points for DASH and pain scores, but only open release gives a significant improvement in grip strength. Comparing the two treatments the only significant difference is the open group have better pain scores at 6 weeks, but this is not seen at later follow up.

In conclusion both groups have shown benefit from the treatments, but one is not shown to be clearly superior.


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_4 | Pages 10 - 10
1 May 2015
Munro C Barker S
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The upper age limit for Paediatric Orthopaedic referrals and admissions has recently been increased from 14 to 16 years. This has many benefits but will change the volume of cases as well as influencing both case mix and the resources required. We analysed the operations and admissions in our department for the year preceding and succeeding the change in age limit in order to evaluate the impact on the service. Our outcome measures were number of trauma and elective cases treated, time spent operating, case mix and cost to the service.

Admission and operative logs for the aforementioned years were analysed to obtain number of admissions, length of stay and operative intervention as well as time in theatre. National reference data from Information Services Division Scotland was used in order to get accurate costs for theatre time and inpatient stays in our hospital.

Results showed an increase in total number of cases from 438 per year to 499. Trauma cases increased from 133 (30.4%) to 202 (40.5%). Of these, 35 (17.3%) were over 14 years. The number of children over 14 years which had an operation, doubled from 51 to 102. Hours spent operating increased from 681.25 to 830.25. The percentage time operating on those aged over 14 increased from 13.2% to 23.8%. Theatre costs increased by £148005 (21.9%) to £822442.50.

The change in age limit has significantly increased case variety and numbers. This has significant financial implications and as such needs adequately resourced to ensure high quality clinical care.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_33 | Pages 11 - 11
1 Sep 2013
Munro C Barker S Kumar K
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Frozen shoulder is a common condition that affects the working population. The longevity and severity of symptoms often results in great economic burden to health services and absence from work. This prospective cohort study aimed to investigate whether early intervention with arthroscopic capsular release resulted in improvement of symptoms and any potential economic benefit to society.

Patients were recruited prospectively. Data was gathered by way of questionnaire to ascertain demographics, previous primary care treatment and absence from work. Oxford Shoulder Score (OSS) was also calculated. Arthroscopic capsular release was performed and further data gathered at four week post-operative follow up. Economic impact of delay to treatment and cost of intervention was calculated using government data from the national tariff which costs different forms of treatment. Statistical analysis was then performed on the results.

Twenty five patients enrolled. Mean pre-operative OSS: 37.4 (range 27–58, SD 7.4). Mean post-operative OSS: 15.9 (range 12–22, SD 2.3). P<0.01. Mean improvement in OSS: 21.5 (range 12–38, SD 7.1)

The cost of non-operative treatment per patient was £3954. The cost of arthroscopic capsular release per patient was £1861, a difference of £2093. There were no complications

Arthroscopic capsular release improved shoulder function on OSS within four weeks. The cost of arthroscopic capsular release is significantly less than the cost of treating the patients non-operatively. Early surgical intervention may improve symptoms quickly and reduce economic burden of the disease. A randomised controlled trial comparing timings of intervention would further elucidate potential benefits.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_25 | Pages 3 - 3
1 May 2013
Baliga S Maheshwari R Dougall T Barker S Elliott K
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The 8-plate (Orthofix, SRL, Italy) is a titanium extraperiosteal plate with 2 screws which acts as a hinge at the outer limits of the physis. It has been used for correction of both angular and sagittal deformity around the knee. To our knowledge this is the first study describing the use of 8-plates in leg length discrepancy (LLD) correction.

We aimed to evaluate outcomes of temporary 8-plate epiphysiodesis in LLD, and to assess the complications associated with its usage.

This retrospective study included 30 patients between 2007 and 2010 whom underwent 8-plate epiphysiodesis to address LLD.

Leg length measurements were recorded using erect full leg length scanograms and comparison made between pre-operative, interval and final scanograms. Any deviations of the mechanical axis were also recorded.

During the study period 34 epiphysiodeses were performed on 30 patients. There were 17 males and 14 females. The average age at the time of procedure was 10.7 years (range 3–15). Average time to final follow-up was 24 months (range 52–10). The average pre-operative LLD was 2.5 cm (range 1.5–6 cm). The mean overall rate of correction was 1.0 cm per year. The mean residual LLD at end of treatment was 1.1 cm (range 0–4.5 cm). Two patients experienced genu recurvatum deformity. This was associated with placement of distal femoral plates anterior to the mid-lateral line.

Based on our experience 8-plate epiphysiodesis is a reversible, minimally invasive procedure with reliable results in length correction. However, careful device placement is required to prevent deformity.