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Orthopaedic Proceedings
Vol. 103-B, Issue SUPP_12 | Pages 1 - 1
1 Oct 2021
Cherry J Downie S Harding T Gill S Johnson S
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Global surgical literature suggests that female trainees have less operative autonomy than their male counterparts. This pilot study had the primary objective to identify difference in autonomy by gender, and to power a national study to carry out further quantitative and qualitative research on this.

This was a retrospective, cross-sectional study utilising eLogbook data for all orthopaedic trainees (ST2-8) and consultants with CCT date 2016–2021 in a single Scottish deanery. The primary outcome measure was percentage of procedures undertaken as lead surgeon. 15 trainees and four recent consultants participated, of which 12 (63%) were male (mean grade 5.2), and 7 (37%) were female (mean grade 4.3). Trainees were lead surgeon on 64% of procedures (17595/27558), with autonomy rising with grade (37% ST1 to 85% ST8, OR 9.4). Operative autonomy was higher in male vs female trainees (66.5% and 61.4% respectively, p=<0.0001), with female trainees more likely to operate with a supervisor present (STU/S vs P/T, f 48%:13%, m 45%:20%).

This pilot study found that there was a significant difference in operative autonomy between male and female trainees, however this may be explained by differences in mean grade of male vs female trainees. Five trainees took time OOT, 4/5 of whom were female. Extension to a national multi-centre study should repeat the quantitative method of this study with additional qualitative analysis including assessing effect of time OOT to explore the reason for any gender discrepancies seen across different deaneries in the UK.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_14 | Pages 2 - 2
1 Oct 2014
Johnson S Jafri M Jariwala A Mcleod G
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Management of irreparable rotator cuff tears is challenging and controversial. Surgeons have been utilising biological tissue scaffolding to augment repairs, but there are concerns regarding viability and function. We wished to investigate this viability and clinical outcome in a small group of patients.

All procedures were performed by a single surgeon over a three-year period. Inclusion criteria were patients with large cuff tears and failure of non-operative treatment. Exclusion criteria were patients with glenohumeral arthritis and where cuff repair could not be successfully performed. Open rotator cuff repair followed by augmentation with Graft Jacket® Regenerative Tissue Matrix (Wright Medical) was performed in all patients. A structured cuff repair physiotherapy protocol was then followed. Follow-up was at six months and at minimum twenty-four months post-operatively where Constant scores (CS) and Oxford Shoulder scores (OSS) were noted and a repeat ultrasound performed.

Fourteen patients underwent the procedure. No patient was lost to follow-up. There were seven males and seven females with a mean age of 63 years (range 31–77). At minimum twenty-four month follow-up, thirteen patients had flexion and abduction above 90 degrees and symmetrical external rotation. Mean CS was 81 (range 70–91) and mean OSS was 46 (range 41–48). Shoulder ultrasound revealed an intact Graft Jacket® in all thirteen patients. The final patient had lower functional movement and lower CS (34) and OSS (25) and ultrasound identified a re-rupture.

This study indicates that augmentation of large rotator cuff repairs with biological tissue scaffolding is a viable option and has good functional results.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_3 | Pages 8 - 8
1 Feb 2014
Cousins G Rickhuss P Tinning C Gill S Johnson S
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Pain produced by the tourniquet is a common source of complaint for patients undergoing carpal tunnel decompression. Practice varies as to tourniquet position. There is little evidence to suggest benefit of one position over another. Our aim was to compare the experience of both the patient and the surgeon with the tourniquet placed either on the arm or the forearm.

Ethical approval was granted. Following power calculation and a significance level set at 0.05, 100 patients undergoing open carpal tunnel decompression under local anaesthetic were randomised to arm or forearm group. Visual Analogue Scores (VAS) (0–100) for pain, blood pressure and heart rate were taken at 2 minute intervals. The operating surgeon provided a VAS for bloodless field achieved and obstruction caused by the tourniquet.

The demographics of the groups was similar. There were no statistically significant differences in any measure between the groups.

Average tourniquet times were 8.8 minutes (forearm) and 8.2 minutes (arm). The average VAS score for forearm and arm was 13 and 11 respectively for bloodless field, 9 and 2 for obstruction. Average overall VAS for pain was 27 in each group, however interval VAS scores for pain were higher in the arm group. The average change Mean Arterial Pressure was −5 mmHg (forearm) −2 mmHg (arm) pulse rate was −1 bpm (forearm) and −2 bpm (arm).

Tourniquet placement on the arm does not result in significant difference in patient pain, physiological response or length of operation. Surgeons reported less obstruction and better bloodless fields with an arm tourniquet, however there was a trend for forearm tourniquet to result in less pain for the patient.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_25 | Pages 4 - 4
1 May 2013
Johnson S Wang W Hadden W
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Two knee arthroplasty implants with very different design principles were previously available in our region. Kinemax is PCL retaining with a fixed bearing and cemented components. LCS is PCL sacrificing, fully uncemented and incorporates a rotating bearing. The aim of this study was to compare the outcome of these two radically different knee designs.

Between 1994 and 2004, 300 consecutive patients were recruited and underwent a knee replacement performed by the senior author. Each patient was randomised via sealed envelopes to receive either LCS or Kinemax implants. All patients were followed up by an audit nurse and patient satisfaction and Knee Society Scores (KSSs) were recorded.

By 2012, 135 patients had complete data at a minimum of 10-years of follow-up. The remaining 165 had either died before 10-year review or had not reached the 10-year mark. No patient was lost to follow-up. There were 69 patients in the Kinemax group and 68 in the LCS group. The pre-operative demographics were not significantly different between the two groups.

At 10-years of follow-up, each implant design demonstrated significant improvements in the KSS (p=0.001 kinemax, p=0.001 LCS) over pre-operative values. No significant difference could be identified between the two designs at 10 years. There were only two revisions in the whole study population and both were for kinemax implants at less than five years post-operatively.

In conclusion, there was no statistically significant difference in outcome between the two radically different knee designs at ten years with both designs performing equally well.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_5 | Pages 10 - 10
1 Feb 2013
Johnson S Cox Q
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Digital Mucous Cysts (DMCs) arise from the distal inter-phalangeal joints of the digits. They often rupture spontaneously and nail deformities are common. Although surgical excision is recognised as the most successful treatment, there is no clear consensus as to the most appropriate operative technique.

We performed a retrospective review identifying all patients who underwent excision of a DMC using a local rotation skin flap by the senior author over a ten-year period. Patients were all seen pre-operatively and at a minimum of six months post-operatively. Sixty-nine patients were included in the study and were reviewed at an average of 37.7 months post-operatively. No patients were lost to follow-up. There was only one cyst recurrence (1.4%). Sixty-seven (97.1%) patients were happy with the scar and sixty-three patients (91.3%) said they would have the procedure performed again. Sixty-six patients (95.7%) were content with their post-operative range of movement, which was on average 8.1° less than pre-operative values. Thirty-six patients had a nail deformity pre-operatively and twenty-one reported that the deformity grew out following the procedure. Only one patient (3.0%) developed a new deformity post-operatively. Five patients reported infection post-operatively with four prescribed oral antibiotics, but all resolved following one week of treatment.

This study, which is one of the largest analyses of an operative treatment for DMCs, demonstrates that cyst excision with a local rotation skin flap is a safe and effective technique with a low recurrence rate and a high patient satisfaction.