Aims. This prospective cohort study aims to determine if the size of the tendon gap following acute rupture of the Achilles tendon shows an association with the functional outcome following non-operative treatment. . Patients and Methods. All patients presenting within two weeks of an acute unilateral rupture of the Achilles tendon between July 2012 and July 2015 were considered for the study. In total, 38 patients (nine female, 29 male, mean age 52 years; 29 to 78) completed the study. Dynamic ultrasound examination was performed to confirm the diagnosis and measure the gap between ruptured tendon ends. Outcome was assessed using dynamometric testing of plantarflexion and the Achilles tendon Total Rupture score (ATRS) six months after the completion of a rehabilitation programme. Results. Patients with a gap ≥ 10 mm with the ankle in the neutral position had significantly greater peak torque deficit than those with gaps < 10 mm (mean 23.3%; 7% to 52% vs 14.3%; 0% to 47%, p = 0.023). However, there was no difference in ATRS between the two groups (mean score 87.2; 74 to 100 vs 87.4; 68 to 97, p = 0.467). There was no significant correlation between gap size and torque deficit (τ = 0.103), suggesting a non-linear relationship. There was also no significant correlation between ATRS and peak torque deficit (τ = -0.305). . Conclusion . This is the first study to identify an association between tendon gap and functional outcome in acute rupture of the Achilles tendon. We have identified 10 mm as a gap size at which deficits in plantarflexion strength become significantly greater, however, the precise relationship between gap size and plantarflexion strength remains unclear. Large, multicentre studies will be needed to clarify this relationship and identify population subgroups in whom deficits in peak torque are reflected in patient-reported outcome measures. . Cite this article: Bone Joint J 2017;99-B:87–93

A total of 80 patients with an acute rupture of tendo Achillis were randomised to operative repair using an open technique (39 patients) or non-operative treatment in a cast (41 patients). Patients were followed up for one year. Outcome measures included clinical complications, range of movement of the ankle, the Short Musculoskeletal Function Assessment (SMFA), and muscle function dynamometry evaluating dorsiflexion and plantar flexion of the ankle. The primary outcome measure was muscle dynamometry. Re-rupture occurred in two of 37 patients (5%) in the operative group and four of 39 (10%) in the non-operative group, which was not statistically significant (p = 0.68). There was a slightly greater range of plantar flexion and dorsiflexion of the ankle in the operative group at three months which was not statistically significant, but at four and six months the range of dorsiflexion was better in the non-operative group, although this did not reach statistically significance either. After 12 weeks the peak torque difference of plantar flexion compared with the normal side was less in the operative than the non-operative group (47% vs 61%, respectively, p < 0.005). The difference declined to 26% and 30% at 26 weeks and 20% and 25% at 52 weeks, respectively. The difference in dorsiflexion peak torque from the normal side was less than 10% by 26 weeks in both groups, with no significant differences. The mean SMFA scores were significantly better in the operative group than the non-operative group at three months (15 vs 20, respectively, p < 0.03). No significant differences were observed after this, and at one year the scores were similar in both groups. We were unable to show a convincing functional benefit from surgery for patients with an acute rupture of the tendo Achillis compared with conservative treatment in plaster

The best management for acute rupture of the Achilles tendon remains controversial. An unacceptably high re-rupture rate following conservative management has been quoted as a reason for surgical management, however, many of these studies do not stand up to critical scrutiny. Since 1989 I have personally treated over 1600 consecutive patients with acute rupture of the tendo-achilles using a conservative functional management protocol. This protocol was developed in the light of experience over a number of years. I will present an independent review of 1044 consecutive patients presenting to my tendo-achilles clinic between 1996 and 2008. After examination, 975 patients were found to have an acute tendon rupture, the rest being gastrocnemius muscle tears, painful Achilles tendonopathy or mis-referrals. Of these 975 patients 29 were late presenters in whom the tendon ends did not approximate well on plantar flexion. These patients were therefore treated surgically. One patient was too obese to be included in the standard protocol, although he was still treated conservatively. With a minimum follow up of two years, the overall re-rupture rate was 2.9%. The re-rupture rate using this management protocol is similar to or better than the published operative re-rupture rates. The protocol, complications and outcome will be discussed and I recommend a well defined and tested non operative functional management protocol for treatment of acute tendo-achilles rupture. This protocol is suitable for all ages including those with significant sporting demands. It is essential that patients have assessment and follow up carried out by a senior and experienced surgeon

Aim. To determine the effects of knee and ankle position on tendo Achilles (TA) gap distance in patients with acute rupture using ultrasound. Methods. Twenty seven patients with twenty-eight acute complete TA ruptures confirmed on ultrasound were recruited within a week of injury. The mean age at presentation was 42 years (range 23-80 years). Ultrasound measurements included location of the rupture and the gap distance between the superficial tendon edges with the ankle in neutral and knee extended. The gap distance was sequentially measured with the foot in maximum equinus and 0°, 30°, 60° and 90° of knee flexion. Results. The mean distance of the rupture from the enthesis was 52mm (range: 40-76mm). The mean gap distance with the ankle in neutral and knee extended was 11.4mm (95%CI: 9.9, 12.9). This reduced to 4.8mm (95%CI: 3.3, 6.4) when the foot was in maximum equinus, 3.8mm (95%CI: 2.5, 5.1) with 30° knee flexion, 2.6mm (95%CI: 1.7, 3.6) with 60° knee flexion and 1.5mm (95% CI: 0.8, 2.2) with 90° knee flexion. Expressing the reduction in gap distance with each successive position as a percentage of the gap distance with the knee extended and ankle in neutral revealed a mean reduction of 58.9%, 66.9%, 77.1% and 85.9% with maximum equinus and 0°, 30°, 60° and 90° of knee flexion respectively. The difference in gap distance between each of these positions was statistically significant (p<0.05). Discussion. Maximum equinus alone significantly reduces the gap distance in acute TA rupture. Increasing knee flexion demonstrates a lesser effect throughout the initial 90° arc suggesting apposition is encouraged by use of a below knee maximum equinus cast permitting full knee flexion

Introduction

The dichotomy between surgical repair and conservative management of acute Achilles tendon ruptures has been eliminated through appropriate functional management. The orthoses used within functional management however, remains variable. Functional treatment works on the premise that the ankle/hindfoot is positioned in sufficient equinus to allow for early weight-bearing on a ‘shortened’ Achilles tendon. Our aim in this study was to test if 2 common walking orthoses achieved a satisfactory equinus position of the hindfoot.

Aims. To determine whether the findings from a landmark Canadian trial assessing the optimal management of acute rupture of the Achilles tendon influenced the practice patterns of orthopaedic surgeons in Ontario, Canada. Materials and Methods. Health administrative databases were used to identify Ontario residents ≥ 18 years of age with an Achilles tendon rupture from April 2002 to March 2014. The rate of surgical repair (per 100 cases) was calculated for each calendar quarter. A time-series analysis was used to determine whether changes in the rate were chronologically related to the dissemination of results from a landmark trial published in February 2009. Non-linear spline regression was then used independently to identify critical time-points of change in the surgical repair rate to confirm the findings. Results. A total of 29 531 patients sustained an Achilles tendon rupture during the study period. Consistently, around 21 out of every 100 cases underwent surgical repair up to the first quarter of 2010. However, by the first quarter of 2014, only 6.5 cases per 100 had surgery. A statistically significant decrease in the rate of surgical repair was observed within one year of the presentation of landmark trial results in 2009 (p < 0.001). July 2009 was independently identified as a critical time at which the surgical repair rate began to significantly decline (p < 0.001). The dissemination of trial results was associated with a significant drop in the rate of surgical repair at non-teaching hospitals (p = 0.001). Conclusion. The current study demonstrates that large, well-designed randomised trials, have the potential to encourage significant changes in the practice patterns of orthopaedic surgeons. . Cite this article: Bone Joint J 2017;99-B:1629–36

The Swansea Morriston Achilles Rupture Treatment (SMART) programme was introduced in 2008. This paper summarises the outcome of this programme. Patients with a rupture of the Achilles tendon treated in our unit follow a comprehensive management protocol that includes a dedicated Achilles clinic, ultrasound examination, the use of functional orthoses, early weight-bearing, an accelerated exercise regime and guidelines for return to work and sport. The choice of conservative or surgical treatment was based on ultrasound findings. . The rate of re-rupture, the outcome using the Achilles Tendon Total Rupture Score (ATRS) and the Achilles Tendon Repair Score, (AS), and the complications were recorded. An elementary cost analysis was also performed. . Between 2008 and 2014 a total of 273 patients presented with an acute rupture 211 of whom were managed conservatively and 62 had surgical repair. There were three re-ruptures (1.1%). There were 215 men and 58 women with a mean age of 46.5 years (20 to 86). Functional outcome was satisfactory. Mean ATRS and AS at four months was 53.0 (. sd . 14), 64.9 (. sd. 15) (n = 135), six months 67.8 (. sd. 16), 73.8 (. sd. 15) (n = 103) and nine months (72.4; . sd. 14) 72.3 (. sd. 13) (n = 43). The programme realised estimated cost savings exceeding £91 000 per annum. The SMART programme resulted in a low rate of re-rupture, a satisfactory outcome, a reduced rate of surgical intervention and a reduction in healthcare costs. Cite this article: Bone Joint J 2015; 97-B:510–15

Aims

Achilles tendon re-rupture (ATRR) poses a significant risk of postoperative complication, even after a successful initial surgical repair. This study aimed to identify risk factors associated with Achilles tendon re-rupture following operative fixation.

Introduction:. The treatment of acute rupture of the tendo-achilles remains controversial. There is good evidence to suggest that outcomes are the same for both operative and non-operative treatment when a functional rehabilitation program is utilised. However, debate continues as to whether the radiological gap-size between the proximal and distal remnants of the tendon has an influence on the suitability for non-operative management. Methods:. All adult patients who attended the emergency department with a clinically suspected tendo-achilles rupture were place in a plantarflexed cast, and underwent MRI scanning to confirm the diagnosis. They were then counselled on the risks and benefits of operative versus non-operative treatment. Patients opting for non-operative treatment were asked to take part in the study and treated using a functional rehabilitation programme. Gap sizes were determined using a standardised protocol by a single musculoskeletal radiologist blinded to the clinical outcomes. Results:. A total of 69 patients have been recruited into the study, 40 have complete their one year review. There were two re-ruptures. The average age was 42.4 years (range 19–70). The average gap size recorded by MRI was 40.4mm (range 6–110). The average ATRS score was 80 (range 17–100) and the single limb heel raise percentage of contralateral side was 64.8% (range 4–115). The Spearman rank correlation coefficient comparing gap size and ATRS score was 0.272 (p=0.045) and for gap size and strength was 0.158 (p=0.165). Conclusion:. This study shows a weak positive correlation between MRI measured gap size of the ruptured tendo-achilles and the Achilles tendon Total Rupture Score at one year. No correlation could be demonstrated between gap size and strength at one year. These results suggest that the MRI measured gap size is unimportant in predicting outcome and hence suitability for non-operative treatment of tendo-achilles rupture using functional rehabilitation

Evidence-based orthopaedic surgery emphasizes the need to properly design and perform high-quality randomized controlled trials to minimize bias and to truly ensure the effectiveness of orthopaedic interventions. The currently available best evidence suggests to load and move the Achilles tendon after an open or percutaneous repair for an acute rupture. Following repair of the torn AT, patients are immobilized with their ankle in gravity equines. They are encouraged to bear weight on the operated limb as soon as possible to full weightbearing, and discharged home on the day of the procedure. All patients are given an appointment for review 2 weeks postoperatively, when they receive a single cast change, with the ankle accommodated in a removable anterior splint in a plantigrade position, secured to the lower leg and foot with Velcro straps. Removal of the foot straps under supervision of a physiotherapist allowes the ankle to be plantar flexed fully but not dorsiflexed. These exercises are performed against manual resistance. At 6 weeks postoperatively, the anterior splint is removed, and the patient referred to physiotherapy for active mobilization. At 12 weeks postoperatively, patients are assessed as to whether they are able to undertake more vigorous physiotherapy, and encouraged to gradually return to their normal activities. Progressive activities are incorporated as strength allowed, with the aim to return to unrestricted activities 6 months following surgery

Introduction. Chronic ruptures of the Achilles tendon pose a significant management challenge to the clinician. Numerous methods of surgical reconstruction have been described and are generally associated with a higher complication rate than with immediate repair. We report our results with a single 5cm incision technique to reconstruct chronic Achilles tendon ruptures with transfer of FHL. This simple technique also enables easy tensioning of the graft/reconstruction to match the uninjured leg and early mobilisation. Materials & Methods. All patients undergoing late Achilles tendon reconstruction (over 4 months from rupture) during the period September 2006 to January 2010 were included in the study. All patients were treated using a single incision technique and posterior ankle FHL harvest with bio absorbable interference screw fixation in the calcaneum. Weight bearing was allowed from 2 weeks post operatively with a dynamic rehabilitation regime identical to that which we use following repair of acute ruptures. A retrospective review of the records was performed and a further telephone review undertaken. Results. 15 ‘late’ Achilles tendon reconstructions were undertaken in the study period. Their mean age was 55 years (38-80). Mean time from rupture was 16 months (5-96). Significant co-morbities included diabetes, chronic renal failure, multiple schlerosis and Parkinson's disease. The mean duration of follow-up was 20 months (7–38). There were no post-operative complications. AOFAS score improved significantly in all patients and all reported good or excellent improvement in strength and return to pre-injury function (including sport in 2 cases). Conclusion. This less invasive single incision technique of FHL transfer reconstruction of chronic Achilles tendon ruptures as previously published from our unit seems to be a safe and reliable undertaking in patients with symptomatic chronic Achilles ruptures and is our preferred technique for all chronic ruptures especially in the presence of significant co-morbities

A total of seven patients (six men and one woman) with a defect in the Achilles tendon and overlying soft tissue underwent reconstruction using either a composite radial forearm flap (n = 3) or an anterolateral thigh flap (n = 4). The Achilles tendons were reconstructed using chimeric palmaris longus (n = 2) or tensor fascia lata (n = 2) flaps or transfer of the flexor hallucis longus tendon (n = 3). Surgical parameters such as the rate of complications and the time between the initial repair and flap surgery were analysed. Function was measured objectively by recording the circumference of the calf, the isometric strength of the plantar flexors and the range of movement of the ankle. The Achilles tendon Total Rupture Score (ATRS) questionnaire was used as a patient-reported outcome measure. Most patients had undergone several previous operations to the Achilles tendon prior to flap surgery. The mean time to flap surgery was 14.3 months (2.1 to 40.7).

At a mean follow-up of 32.3 months (12.1 to 59.6) the circumference of the calf on the operated lower limb was reduced by a mean of 1.9 cm (sd 0.74) compared with the contralateral limb (p = 0.042). The mean strength of the plantar flexors on the operated lower limb was reduced to 88.9% of that of the contralateral limb (p = 0.043). There was no significant difference in the range of movement between the two sides (p = 0.317). The mean ATRS score was 72 points (sd 20.0). One patient who had an initial successful reconstruction developed a skin defect of the composite flap 12 months after free flap surgery and this resulted in recurrent infections, culminating in transtibial amputation 44 months after reconstruction.

These otherwise indicate that reconstruction of the Achilles tendon combined with flap cover results in a successful and functional reconstruction.

Cite this article: Bone Joint J 2015;97-B:215–20.

Aims

Flexor hallucis longus (FHL) tendon transfer is a well-recognized technique in the treatment of the neglected tendo Achillis (TA) rupture.

Sporting injuries around the ankle vary from simple sprains that will resolve spontaneously within a few days to severe injuries which may never fully recover and may threaten the career of a professional athlete. Some of these injuries can be easily overlooked altogether or misdiagnosed with potentially devastating effects on future performance. In this review article, we cover some of the common and important sporting injuries involving the ankle including updates on their management and outcomes.

Cite this article: Bone Joint J 2016;98-B:874–83.

The incidence of acute and chronic conditions of the tendo Achillis appear to be increasing. Causation is multifactorial but the role of inherited genetic elements and the influence of environmental factors altering gene expression are increasingly being recognised. Certain individuals’ tendons carry specific variations of genetic sequence that may make them more susceptible to injury. Alterations in the structure or relative amounts of the components of tendon and fine control of activity within the extracellular matrix affect the response of the tendon to loading with failure in certain cases.

This review summarises present knowledge of the influence of genetic patterns on the pathology of the tendo Achillis, with a focus on the possible biological mechanisms by which genetic factors are involved in the aetiology of tendon pathology. Finally, we assess potential future developments with both the opportunities and risks that they may carry.

Cite this article: Bone Joint J 2013;95-B:305–13.