Early motion for Achilles tendon ruptures: is surgery important? A randomized, prospective study

Percutaneous, Minimally Invasive Repair of Traumatic and Simultaneous Rupture of Both Achilles Tendons: A Case Report

Achilles injury is a common musculoskeletal disorder. Bilateral rupture of the Achilles tendon, however, is much less common and usually occurs spontaneously. Complete, traumatic, and bilateral ruptures are rare and typically require long periods of immobilization before the patient can return to full weightbearing. A 52-year-old male was hospitalized for bilateral traumatic rupture to both Achilles tendons. No risk factors for tendon rupture were found. Blood samples revealed no peripheral blood pathologic features. Both tendons were repaired with percutaneous, minimally invasive surgery using the Achillon(®) tendon suture system. Rehabilitation was begun 4 weeks later. An ankle-foot orthosis was prescribed to provide ankle support with an adjustable range of movement, and active plantar flexion was set at 0° to 30°. The patient remained non-weightbearing with the ankle-foot orthosis device and performed active range-of-motion exercises. At 8 weeks after surgery, we recommended that he begin walking with partial weightbearing using a foot-tibial orthosis with the range of motion set to 45° plantar flexion and 15° dorsiflexion. At 10 weeks postoperatively, he was encouraged to return to full weightbearing on both feet. Beginning rehabilitation as soon as possible after minimally invasive surgery, compared with 6 weeks of immobilization after surgery, provided a rapid resumption to full weightbearing. We emphasize the clinical importance of a safe, simple treatment program that can be followed for a patient with damage to the Achilles tendons. To our knowledge, ours is the first report of minimally invasive repair of bilateral simultaneous traumatic rupture of the Achilles tendon.

The Achilles tendon resting angle as an indirect measure of Achilles tendon length following rupture, repair, and rehabilitation

Background

Rupture of the Achilles tendon may result in reduced functional activity and reduced plantar flexion strength. These changes may arise from elongation of the Achilles tendon. An observational study was performed to quantify the Achilles tendon resting angle (ATRA) in patients following Achilles tendon rupture, surgical repair, and rehabilitation, respectively.

Methods

Between May 2012 and January 2013, 26 consecutive patients (17 men), with a mean (standard deviation, SD) age of 42 (8) years were included and evaluated following injury, repair, and at 6 weeks, 3 months, 6 months, 9 months, and 12 months, respectively (rehabilitation period). The outcome was measured using the ATRA, Achilles tendon total rupture score (ATRS), and heel-rise test.

Results

Following rupture, the mean (SD) absolute ATRA was 55 (8)° for the injured side compared with 43 (7)° (p < 0.001) for the noninjured side. Immediately after repair, the angle reduced to 37 (9)° (p < 0.001). The difference between the injured and noninjured sides, the relative ATRA, was −12.5 (4.3)° following injury; this was reduced to 7 (7.9)° following surgery (p < 0.001). During initial rehabilitation, at the 6-week time point, the relative ATRA was 2.6 (6.2)° (p = 0.04) and at 3 months it was −6.5 (6.5)° (p < 0.001). After the 3-month time point, there were no significant changes in the resting angle. The ATRS improved significantly (p < 0.001) during each period up to 9 months following surgery, where a score of 85 (10)° was reported. The heel-rise limb symmetry index was 66 (22)% at 9 months and 82 (14)% at 12 months. At 3 months and 6 months, the absolute ATRA correlated with the ATRS (r = 0.63, p = 0.001, N = 26 and r = 0.46, p = 0.027, N = 23, respectively). At 12 months, the absolute ATRA correlated with the heel-rise height (r = −0.63, p = 0.002, N = 22).

Conclusion

The ATRA increases following injury, is reduced by surgery, and then increases again during initial rehabilitation. The angle also correlates with patient-reported symptoms early in the rehabilitation phase and with heel-rise height after 1 year. The ATRA might be considered a simple and effective means to evaluate Achilles tendon function 1 year after the rupture.

Healing of the Achilles tendon in rabbits--evaluation by magnetic resonance imaging and histopathology

Background

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) could provide valuable findings for tendon regeneration. A non-invasive image method that can effectively evaluate the quality of the scar tissue has not yet been employed.

Methods

Thirteen New Zealand rabbits were divided into two groups: group 1—non-treated control (n = 4); group 2—surgical intervention (n = 9). The central portion of the Achilles tendon was resected, and after 30 days, DCE-MRI was performed. Contrast enhancement methods were applied using the region of interest (ROI) technique. In the medium third of the Achilles tendon, the intra-substantial signal intensity and the presence of hyper-intense intra-tendon focus points and of signal heterogeneity were evaluated. Antero-posterior and transversal diameters of the tendon were measured. The Achilles tendon was removed and dissected free from other tissues. Sections from the central part of the tendon were stained for histological analysis.

Results

The difference between the contrast enhancement curves of the control and surgical groups (p < 0.0001) was observed. The surgical group had an intense contrast enhancement in the contrast sequences, enlargement of the diameter and intra-substantial signal intensity alteration, with hyper-signal focus points and widening of the tendon sheath, which presented irregular contours and intense contrast enhancement. On histology, the Achilles tendon presented diffuse widening of the tendon sheath and wedge-shaped areas with scarring tissue rich in disordered collagen fibres. These findings were related to alteration in the intra-substantial signal intensity, with hyper-signal focus points in the DCE-MRI.

Conclusions

MRI with perfusion could be a useful technique for evaluating tissue and fibrous scarring in tendons.

Randomized controlled trial of accelerated rehabilitation versus standard protocol following surgical repair of ruptured Achilles tendon

BACKGROUND

There is no consensus regarding the optimal management of the acutely ruptured Achilles tendon (TA). Functional bracing alone achieves outcomes similar to those of surgical repair. Surgical repair combined with immediate mobilization may improve the clinical outcome further. The purpose of our study was to determine if an accelerated rehabilitation programme following surgical repair of the ruptured TA could improve clinical outcome, relative to the standard protocol.

METHODS

Patients with an acutely ruptured TA were randomly allocated to undergo an accelerated programme (AP) or standard programme (SP), following surgery. Outcome was assessed at 12 months post-surgery using the Achilles tendon Total Rupture Score (ATRS), the heel-raise height and the time taken to return to running.

RESULTS

Fifty-one patients completed the study, 25 in the AP group and 26 in the SP group. At 12 months post-surgery, the ATRS results were similar in the two treatment groups (87.46 in AP with standard error (SE) of 0.735 versus 87.12 in SP with SE of 0.75) while the AP group had less lengthening of the TA (0.385 cm, SE 0.166 versus 1.00 cm, SE 0.169) and a more rapid return to running (17.231 weeks, SE 0.401 versus 21.08 weeks, SE 0.409), than the SP group.

CONCLUSION

The accelerated rehabilitation programme resulted in less tendon lengthening, more rapid return to running, but similar ATRS relative to the standard rehabilitation. Immobilization following TA repair may prolong recovery.

Nonoperative dynamic treatment of acute achilles tendon rupture: the influence of early weight-bearing on clinical outcome: a blinded, randomized controlled trial

BACKGROUND

Dynamic rehabilitation has been suggested to be an important part of nonoperative treatment of acute Achilles tendon rupture that results in functional outcome and rerupture rates comparable with those of operative treatment. However, the optimal role of weight-bearing during early rehabilitation remains unclear. The purpose of this study was to compare immediate weight-bearing with non-weight-bearing in a nonoperative dynamic treatment protocol for Achilles tendon rupture.

METHODS

The study was conducted as a blinded, randomized, controlled, parallel superiority trial. Patients eighteen to sixty years of age were eligible for inclusion. Both groups were treated nonoperatively with controlled early motion. The intervention group was allowed full weight-bearing from day one, and the control group was non-weight-bearing for six weeks. The primary outcome was the Achilles tendon Total Rupture Score (ATRS) after one year. Secondary outcomes included heel-rise work, health-related quality of life, and the rerupture rate. Outcome assessors were blinded to the intervention.

RESULTS

Thirty patients were randomized to each group; twenty-nine in the weight-bearing group and twenty-seven in the control group were analyzed. The only significant difference between the groups was better health-related quality of life in the weight-bearing group at twelve months (p = 0.009). The mean ATRS at twelve months was 73 in the weight-bearing group and 74 in the control group (p = 0.81). At twelve months, the total heel-rise work performed by the injured limb relative to that by the uninjured limb was 53% in the weight-bearing group and 58% in the control group (p = 0.37). There were three reruptures in the weight-bearing group and two in the control group (p = 1.0).

CONCLUSIONS

The ATRS and heel-rise work results did not differ significantly between the groups. The rerupture rate was 9% overall, and both groups had substantial functional deficits in the injured limb compared with the uninjured limb. Immediate weight-bearing can be recommended as an option in the nonoperative treatment of Achilles tendon rupture.

A retrospective comparative study with historical control to determine the effectiveness of platelet-rich plasma as part of nonoperative treatment of acute achilles tendon rupture

PURPOSE

The aim of this study was to evaluate the effectiveness of platelet-rich plasma (PRP) in the nonoperative treatment of acute Achilles tendon rupture.

METHODS

This was a comparative study that included a prospective cohort and a historical control group. The control group was formed from a randomized trial in which one arm of the trial underwent nonoperative treatment, including accelerated functional rehabilitation after acute Achilles tendon rupture identical to that performed in the prospective treatment group. Patients in the prospective group were recruited consecutively and were administered 2 injections of PRP during the first 2 weeks after the injury. The primary outcome was isokinetic plantar flexion strength at 1 and 2 years after injury. Secondary outcomes included range of motion (ROM), calf circumference, and Leppilahti score. The ankle-hindfoot scale (American Orthopedic Functional Ankle Scale [AOFAS]) was administered to patients who received the PRP injection in the prospective group but was not measured for the historical group.

RESULTS

A total of 73 patients participated in the prospective PRP study group and were compared with a retrospective control group of 72 patients from a previous randomized controlled trial (RCT). The mean difference between groups in isokinetic plantar flexion strength (injured/uninjured) at 1 year after injury was -4.3% (95% confidence interval [CI], -15.9 to 7.3; P = .5) and 2.4% (95% CI, -8.6 to 13.5; P = .7) at 30°/s and 60°/s, respectively. Results at 2 years after injury were -3.1% (95% CI, -13.5 to 7.2; P = .6) and 4.8% (95% CI, -3.5 to 13.1; P = .3) at 30°/s and 60°/s, respectively. All secondary outcomes were also not statistically different.

CONCLUSIONS

The results of this study suggest that there is no measurable clinical benefit to the addition of PRP to the treatment regimen for nonoperatively treated acute Achilles tendon rupture.

LEVEL OF EVIDENCE

Level III, retrospective comparative study.

Weight-Bearing in the Nonoperative Treatment of Acute Achilles Tendon Ruptures: A Randomized Controlled Trial

BACKGROUND

The rate of Achilles tendon ruptures is increasing, but there is a lack of consensus on treatment of acute injuries. The purpose of this trial was to compare outcomes of weight-bearing casts with those of traditional casts in the treatment of acute Achilles tendon ruptures.

METHODS

Eighty-four patients with an acute Achilles tendon rupture were recruited over a two-year period. Patients were randomized to be treated with either a weight-bearing cast with a Böhler iron or a non-weight-bearing cast for eight weeks. Patients underwent muscle dynamometry testing at six months, with additional follow-up at one and two years. The primary outcomes that were assessed were the rerupture rate and the time taken to return to work. Secondary outcomes included return to sports, ankle pain and stiffness, footwear restrictions, and patient satisfaction.

RESULTS

There were no significant differences between groups with regard to patient demographics or activity levels prior to treatment. At the time of follow-up at two years, one (3%) of the thirty-seven patients in the weight-bearing group and two (5%) of the thirty-seven in the non-weight-bearing group had sustained a rerupture (p = 0.62). The patients in the weight-bearing group experienced less subjective stiffness at one year. There were no significant differences in time taken to return to work, Leppilahti scores, patient satisfaction, pain, or return to sports between the groups.

CONCLUSIONS

Use of weight-bearing casts for the nonoperative treatment of Achilles tendon ruptures appears to offer outcomes that are at least equivalent to those of non-weight-bearing casts. The overall rerupture rate in this study was low, supporting the continued use of initial nonoperative management for the treatment of acute Achilles tendon ruptures.

LEVELS OF EVIDENCE

Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.

Defining the terms acute and chronic in orthopaedic sports injuries: a systematic review

BACKGROUND

Although many authors report on acute injuries and chronic injuries in the orthopaedic literature, the actual terms are seldom explicitly defined.

HYPOTHESIS

Much of the literature pertaining to sports injuries that are acute or chronic does not define these terms. It is believed that definitions will provide clarity and specificity in future literature.

STUDY DESIGN

Systematic review.

METHODS

A systematic review of 116 articles was conducted to determine whether and how the terms acute and chronic were defined as they pertain to several commonly treated conditions: Achilles tendon rupture, distal biceps tendon rupture, pectoralis major tendon rupture, anterior cruciate ligament (ACL) tear, anterior shoulder instability, and acromioclavicular (AC) joint dislocation. Articles were isolated from various databases and search engines by use of keywords to identify relevant literature.

RESULTS

This study determined that the terms acute and chronic for each injury are defined, respectively, as follows: Achilles tendon rupture: <1 week, >4 weeks; distal biceps tendon rupture: <6 weeks, >12 weeks; pectoralis major tendon rupture: <6 weeks, >6 weeks; ACL tear: <6 weeks, >6 months; anterior shoulder instability: <2 weeks, >6 months; AC joint dislocation, <3 weeks, >6 weeks.

CONCLUSION

The current literature varies greatly in defining the terms acute and chronic in common sports injuries. The vast majority of authors imply these terms, based on the method of their studies, rather than define them explicitly. Injuries involving tendons showed greater consistency among authors, thus making a definition based on consensus easier to derive. The literature on ACL and shoulder instability in particular showed great variability in defining these terms, likely representing the more complex nature of these injuries and the fact that timing of surgery in the majority of patients does not particularly affect the complexity of the surgical approach and treatment.

CLINICAL RELEVANCE

Defining injuries as acute or chronic is clinically relevant in many cases, particularly concerning tendon injuries, where these terms have implications regarding the anatomic pathologic changes and tissue quality, which may necessitate augmentation and alter the initial surgical plan. In cases where these terms are less pertinent to operative treatment considerations, they bring clarity to the discussion of the acuity of the injury (as it pertains to time from insult).

Stable surgical repair with accelerated rehabilitation versus nonsurgical treatment for acute Achilles tendon ruptures: a randomized controlled study

BACKGROUND

The optimal treatment for acute Achilles tendon ruptures is still a subject of debate. Early loading of the tendon is a factor that has been shown to be beneficial to recovery and to minimize complications. The main outcome of previous studies has been complications such as reruptures and deep infections, without focusing on the functional outcome relevant to the majority of patients who do not experience these complications.

PURPOSE

To evaluate whether stable surgical repair and early loading of the tendon could improve patient-reported outcome and function after an acute Achilles tendon rupture.

STUDY DESIGN

Randomized controlled trial; Level of evidence, 1.

METHODS

A total of 100 patients (86 men, 14 women; mean age, 40 years) with an acute total Achilles tendon rupture were randomized to either surgical treatment, including an accelerated rehabilitation protocol, or nonsurgical treatment. The primary outcome was the Achilles tendon Total Rupture Score (ATRS). The patients were evaluated at 3, 6, and 12 months for symptoms, physical activity level, and function.

RESULTS

There were no significant differences between the groups in terms of symptoms, physical activity level, or quality of life. There was a trend toward improved function in surgically treated patients; the results were significantly superior when assessed by the drop countermovement jump (95% CI, 0.03-0.15; P = .003) and hopping (95% CI, 0.01-0.33; P = .040). No reruptures occurred in the surgical group, while there were 5 in the nonsurgical group (P = .06). There were 6 superficial infections in the surgically treated group; however, these superficial infections had no bearing on the final outcome. Symptoms, reduced quality of life, and functional deficits still existed 12 months after injury on the injured side in both groups.

CONCLUSION

The results of the present study demonstrate that stable surgical repair with accelerated tendon loading could be performed in all (n = 49) patients without reruptures and major soft tissue-related complications. However, this treatment was not significantly superior to nonsurgical treatment in terms of functional results, physical activity, or quality of life.

Reliability of Achilles tendon resting angle and calf circumference measurement techniques

BACKGROUND

The resting angle of the ankle joint may be altered following apparently successful management of Achilles tendon rupture. The reliability of the Achilles Tendon Resting Angle and Calf Circumference measurements was determined.

METHODS

Three test-retest measurements for reliability assessment were performed on 16 healthy subjects: 10 males and 6 females.

RESULTS

The mean left Achilles Tendon Resting Angle was mean 50.1° (range [26-61]), ICC 0.92 (CI [0.83-0.97]), SEM 2.4°. The mean right Achilles tendon resting angle was mean 49.9° (range [26-60]), ICC 0.91 (CI [0.80-0.96]), SEM 2.6°. The mean left calf circumference was mean 38.5cm (range [33.3-44.2]), ICC 0.97 (CI [0.94-0.98]), SEM 0.6cm, and the mean right calf circumference was mean 38.4cm (range [33.3-43.6]), ICC 0.97 (CI [0.94-0.99]), SEM 0.5cm.

CONCLUSIONS

The Achilles Tendon Resting Angle and Calf Circumference at 15cm from the antero-medial joint line had excellent test-retest reliability. These are simple, quick and inexpensive measurements, which have the potential to correlate with tendon elongation and functional outcome. The Achilles tendon resting angle may be used as a guide to tendon length during intra-operative repair and rehabilitation.

Achilles tendon ruptures

The incidence of acute Achilles tendon ruptures is on the rise. This is thought to be due to the increasing number of middle-aged persons participating in athletic and/or strenuous activity. Ruptures of the Achilles tendon can be severely debilitating, with deficits seen years after the initial incident. Also, these injuries can have substantial socioeconomic impacts regardless of the treatment selected. Debate continues over the optimal treatment of Achilles tendon ruptures, especially the argument whether to treat patients nonoperatively or surgically. Newer evidence shows that functional rehabilitation, including early weight-bearing, should be an integral part of successful treatment of acute Achilles ruptures. Further research is needed to further investigate the ideal treatment and rehabilitation protocols.

Early controlled tension improves the material properties of healing human achilles tendons after ruptures: a randomized trial

BACKGROUND

Weightbearing in a fixed brace after acute Achilles tendon ruptures does not necessarily lead to mechanical tension in the tendon. Early motion has a positive effect on the clinical outcome, but it is not clear if this is because of effects on tendon strength or unspecific effects. The aim of this study was to examine if tensional loading leads to an improvement in the mechanical properties of the healing Achilles tendon.

HYPOTHESIS

The elastic modulus of the tendon callus is increased by early tensional loading.

STUDY DESIGN

Randomized controlled trial; Level of evidence, 2.

METHODS

Thirty-five patients with an acute Achilles tendon rupture were recruited consecutively. They underwent surgery with a single suture and received metal markers in the distal and proximal parts of the tendon. After surgery, the patients were randomized to either cast immobilization for 7 weeks or tensional loading. The latter group wore a cast for 2 weeks and then a removable foam walker boot for 5 weeks. They were instructed to remove the boot twice daily and push a special training pedal to produce a predetermined, gradually increasing tensional load on the healing tendon. At 7, 19, and 52 weeks postoperatively, the patients were investigated with roentgen stereophotogrammetric analysis under different loading conditions and computed tomography. The collected data allowed calculation of the modulus of elasticity. At 52 weeks, the clinical outcome was also examined using the Achilles tendon Total Rupture Score (ATRS) and the heel-raise index.

RESULTS

The elastic modulus at 19 and 52 weeks was higher in the tensional loading group. There was no significant difference in the ATRS or heel-raise index at 52 weeks. As in previous studies, there was a significant correlation between the modulus at 7 weeks and the heel-raise index at 52 weeks. There were no signs of tendon elongation.

CONCLUSION

Early tensional loading improves the mechanical properties of the healing Achilles tendon.

The role of mechanical loading in tendon development, maintenance, injury, and repair

Tendon injuries often result from excessive or insufficient mechanical loading, impairing the ability of the local tendon cell population to maintain normal tendon function. The resident cell population composing tendon tissue is mechanosensitive, given that the cells are able to alter the extracellular matrix in response to modifications of the local loading environment. Natural tendon healing is insufficient, characterized by improper collagen fibril diameter formation, collagen fibril distribution, and overall fibril misalignment. Current tendon repair rehabilitation protocols focus on implementing early, well-controlled eccentric loading exercises to improve repair outcome. Tissue engineers look toward incorporating mechanical loading regimens to precondition cell populations for the creation of improved biological augmentations for tendon repair.

Biomechanical properties of the plantar flexor muscle-tendon complex 6 months post-rupture of the Achilles tendon

We compared the effects of a non-weight bearing protocol (NWB) and a weight bearing (WB) protocol on energy stored, stiffness, and shock absorption in the plantar flexor muscle-tendon unit of patients managed non-operatively following an Achilles tendon rupture. Thirty-eight subjects were randomized to a WB cast fitted with a Bohler iron or a traditional non-weight-bearing cast. At a 6-month follow-up, a biomechanical assessment utilizing an isokinetic dynamometer allowed measurement of peak passive torque, energy stored, shock absorption, and stiffness. The WB group had greater peak passive torque (≈ 20%). Irrespective of group, peak passive torque in unaffected legs was greater (≈ 26%) than affected legs. Across the groups, energy stored in the NWB group was 74% of the WB group. The energy stored in affected legs was 80% of that in unaffected legs. Shock absorption was not significantly different across legs or groups. Irrespective of group, affected legs had significantly less stiffness (20-40%). While the augmentation of plaster with a Bohler iron to allow increased weight bearing had positive effects, deficits in affected compared to unaffected legs irrespective of group were notable, and should be addressed prior to participation in vigorous physical activities.

Validity and reliability of the Achilles tendon total rupture score

The best treatment of acute Achilles tendon rupture remains debated. Patient-reported outcome measures have become cornerstones in treatment evaluations. The Achilles tendon total rupture score (ATRS) has been developed for this purpose but requires additional validation. The purpose of the present study was to validate a Danish translation of the ATRS. The ATRS was translated into Danish according to internationally adopted standards. Of 142 patients, 90 with previous rupture of the Achilles tendon participated in the validity study and 52 in the reliability study. The ATRS showed moderately strong correlations with the physical subscores of the Medical Outcomes Study 36-item Short-Form Health Survey (r = .70 to .75; p < .0001) and Victorian Institute of Sports Assessment-Achilles questionnaire (r = .71; p < .0001). Test-retest of the ATRS showed no significant difference in the mean (2.41; p = .07). The limits of agreement were ±18.53. A strong correlation was found between test and retest (intercorrelation coefficient .908); the standard error of measurement was 6.7, and the minimal detectable change was 18.5. The Danish version of the ATRS showed moderately strong criterion validity. For study and follow-up purposes, the ATRS seems reliable for comparisons of groups of patients. Its usability is limited for repeated assessment of individual patients. The development of analysis guidelines would be desirable.

Outcomes of functional weight-bearing rehabilitation of Achilles tendon ruptures

The introduction of functional rehabilitation for patients with Achilles tendon rupture has dramatically changed treatment programs for this condition. The authors introduced a functional weight-bearing protocol for patients with an acute Achilles tendon rupture treated operatively and nonoperatively in 2002. They hypothesized that no significant differences would exist in the rerupture rates and functional outcomes between the groups. Between 2002 and 2008, the authors collected data on 80 consecutive patients treated with a weight-bearing functional orthosis for complete Achilles tendon rupture. Following evidence-based counseling, 51 patients chose nonoperative treatment and 29 chose operative treatment. Outcome measures included rerupture rates, other complications, and functional scoring. The nonoperative group was a decade older (median age, 47 years [range, 27-80 years]) than the operative group (median age, 37 years [range, 24-55 years]). Rerupture was noted in 2 (4%) patients in the nonoperative treatment group and 1 (3%) patient in the operative group. Two (7%) patients in the operative group developed superficial wound infections and reported no nerve injuries. Median Achilles Tendon Total Rupture Score was 82 points in the nonoperative group and 94 in the operative group. Median Victorian Institute of Sports Assessment-Achilles tendinopathy questionnaire scores were 60 and 91 for the nonoperative and operative groups, respectively. Both groups had low rerupture rates. Functional scores, using the newly validated Achilles Tendon Total Rupture Score, were lower in the nonoperative group.

Local NO synthase inhibition produces histological and functional recovery in Achilles tendon of rats after tenotomy: tendon repair and local NOS inhibition

Repair of injured tendon is a very slow process and involves the release of many molecules, including nitric oxide. We investigate the influence of local nitrergic inhibition in histological and functional recovery of injured Achilles tendon. A standard murine model of tendon injury by rupture was used. The animals were divided into three experimental groups: control, injury + vehicle (normal saline) and injury + Nω-nitro-L-arginine methyl ester (L-NAME). The products were injected into the paratendinous region every 2 days and body weight gain and Achilles functional index (AFI) were evaluated on days 0, 7, 14 and 21 after tendon injury. On day 21 post-injury, the animals were killed to evaluate nitric oxide production and tissue organization. We observed that tendon surgical division led to increased tissue nitrite levels, which were reduced in L-NAME-treated rats. The AFI revealed functional recovery of L-NAME-treated animals on day 21 post-injury, which was not observed in the saline-treated group. Microscopic analysis of hematoxylin-eosin staining and collagen autofluorescence showed that L-NAME-treated rats had more aligned areas of collagen fibers and that the diameter of newly organized collagen in this group was also greater than that in the vehicle-treated one. We demonstrate that local treatment with L-NAME significantly improves the functional parameters and accelerates histomorphological recovery.

Functional Outcome of Percutaneous Achilles Repair: Improvements in Achilles Tendon Total Rupture Score During the First Year

Background:

Randomized studies have so far failed to show a difference in outcome between operative and nonoperative management of Achilles tendon rupture, provided that no rerupture occurs. Percutaneous Achilles repair has been suggested to result in superior patient satisfaction compared with open repair in patients with an acute Achilles tendon rupture, but there are no outcome data available with validated methods describing the progression of recovery during the first year.

Purpose:

To evaluate the outcome of patients with a ruptured Achilles tendon, managed by percutaneous repair, during the first year following repair with a valid, reliable, and responsive outcome measure. Furthermore, the effects of time between injury and surgery, age, and complications on outcome were also evaluated.

Study design:

Case series.

Methods:

A total of 73 patients (60 males and 13 females) with a mean age of 45.5 years were included. Patient age, length of time between injury and surgery, and complications were documented. Patients were evaluated using the Achilles tendon Total Rupture Score (ATRS) at 3, 6, 9, and 12 months following repair.

Results:

The median ATRS results at 3, 6, 9, and 12 months were 42.5, 73, 83, and 89, respectively. The number of patients who reported excellent or good scores (ATRS >84) at 3, 6, 9, and 12 months were 3%, 36%, 57%, and 69%, respectively. There were no significant differences in outcome at each time point for those patients undergoing early (≤48 hours) compared with late surgery or between those <65 and those >65 years of age. The complication rate was 13.5%. Patients who had a complication had a lower ATRS result at 3 months following surgery, but there were no differences after that time point.

Conclusion:

The patients in the present study reported marked improvement in function between 3 and 6 months following surgery, with continuing but less steep improvement up to 1 year following surgery. The presence of a complication other than rerupture did not affect the end-stage outcome but did affect that at 3 months following surgery.

Clinical Relevance:

This study demonstrates improving scores with time over the first year following surgery, against which other treatment methods can be compared.

Treatment of acute Achilles tendon rupture in Scandinavia does not adhere to evidence-based guidelines: a cross-sectional questionnaire-based study of 138 departments

The best treatment of acute Achilles tendon rupture has been discussed for decades. During the past half decade, evidence has increased in favor of nonoperative treatment and dynamic and weightbearing rehabilitation. We hypothesized that the treatment strategies would show great variation and that adherence to evidence-based recommendations would not be as good as desired. The purpose of the present study was to investigate how acute Achilles tendon rupture is treated in Scandinavia. A questionnaire was distributed to all orthopedic departments treating acute Achilles tendon ruptures in Denmark, Sweden, Norway, and Finland. The questionnaire was returned by 138 of 148 departments (response rate 93%). Two-way tables with Fisher's exact test were used for statistical analysis. In Denmark, Norway, Sweden, and Finland, 19 of 23 (83%), 44 of 48 (92%), 26 of 40 (65%), and 8 of 27 (30%) departments recommended surgical treatment (p < .001). Dynamic rehabilitation was used significantly less often in Denmark (5 of 23 [22%]), Norway (17 of 45 [38%]), and Sweden (11 of 40 [28%]) than in Finland (15 of 26 [58%]; p = .015). A significant difference was found among the countries in the educational level of the performing surgeons (p < .001). Surgical treatment was the treatment of choice in Danish, Norwegian, and Swedish hospitals regardless of the increasing evidence favoring nonoperative treatment. Although increasing evidence has favored dynamic rehabilitation, it has gained limited use across Scandinavia. Weightbearing was used in most hospitals. Surgery was performed by junior surgeons in most hospitals across Scandinavia. Treatment algorithms showed considerable variation and often did not adhere to the clinical evidence.

Rerupture rate after early weightbearing in operative versus conservative treatment of Achilles tendon ruptures: a meta-analysis

Whether Achilles tendon rupture benefits from surgery or conservative treatment remains controversial. Moreover, the outcome can be influenced by the rehabilitation protocol. The goal of the present meta-analysis was to compare the rerupture rate after surgical repair of the Achilles tendon followed by weightbearing within 4 weeks versus conservative treatment with weightbearing within 4 weeks. In addition, a secondary analysis was performed to compare the rerupture rates in patients who started weightbearing after 4 weeks. Seven randomized controlled trials published from 2001 to 2012, with 576 adult patients, were included. The primary outcome measure was the rerupture rate. The secondary outcomes were minor and major complications other than rerupture. In the early weightbearing group, 7 of 182 operatively treated patients (4%) experienced rerupture versus 21 of 176 of the conservatively treated patients (12%). A secondary analysis of the patients treated with late weightbearing showed a rerupture rate of 6% (7 of 108) for operatively treated patients versus 10% (11 of 110) for conservatively treated patients. The differences concerning the rerupture rate in both groups were not statistically significant. No differences were found in the occurrence of minor or major complications after early weightbearing in both patient groups. In conclusion, we found no difference in the rerupture rate between the surgically and nonsurgically treated patients followed by early weightbearing. Weightbearing after 4 weeks also resulted in no differences in the rupture rate in the surgical versus conservatively treated patients. However, surgical treatment was associated with a twofold greater complication rate than conservative treatment.

The ruptured Achilles tendon: a current overview from biology of rupture to treatment

The Achilles tendon (AT) is the most frequently ruptured tendon in the human body yet the aetiology remains poorly understood. Despite the extensively published literature, controversy still surrounds the optimum treatment of complete rupture. Both non-operative management and percutaneous repair are attractive alternatives to open surgery, which carries the highest complication and cost profile. However, the lack of a universally accepted scoring system has limited any evaluation of treatment options. A typical UK district general hospital treats approximately 3 cases of AT rupture a month. It is therefore important for orthopaedic surgeons to correctly diagnose and treat these injuries with respect to the best current evidence-based practice. In this review article, we discuss the relevant pathophysiology and diagnosis of the ruptured AT and summarize the current evidence for treatment.

Efficacy and complications of open and minimally invasive surgery in acute Achilles tendon rupture: a prospective randomised clinical study--preliminary report

PURPOSE

Surgical treatment of an acute Achilles tendon rupture can effectively reduce the risk of re-rupture, but it increases the probability of surgical complications. We postulated that a minimally invasive surgical treatment might reduce the number of complications related to open surgery and improve the functional results.

METHOD

We enrolled 47 patients with acute Achilles tendon ruptures in a prospective, randomised trial to compare clinical results and complications between a minimally invasive procedure with the Achillon(®) device and traditional open surgery with Krackow-type sutures. The average patient age was 46 years. The follow up time was 24 months.

RESULTS

No Achilles tendon re-rupture or nerve injury occurred in treated patients. There were two cases of wound infections in the open surgery group, and one superficial wound infection occurred in the minimally invasive group. The groups were not significantly different in the amount of pain, range of ankle movements, the single heel-rise test, calf circumference, or time to return to work and sports.

CONCLUSION

After a two year follow-up period, we found no significant differences in clinical outcomes between groups treated with traditional open surgery or minimally invasive surgery.

Surgical versus nonsurgical treatment of acute Achilles tendon rupture: a meta-analysis of randomized trials

BACKGROUND

Surgical repair is a common method of treatment of acute Achilles rupture in North America because, despite a higher risk of overall complications, it has been believed to offer a reduced risk of rerupture. However, more recent trials, particularly those using functional bracing with early range of motion, have challenged this belief. The aim of this meta-analysis was to compare surgical treatment and conservative treatment with regard to the rerupture rate, the overall rate of other complications, return to work, calf circumference, and functional outcomes, as well as to examine the effects of early range of motion on the rerupture rate.

METHODS

A literature search, data extraction, and quality assessment were conducted by two independent reviewers. Publication bias was assessed with use of the Egger and Begg tests. Heterogeneity was assessed with use of the I2 test, and fixed or random-effect models were used accordingly. Pooled results were expressed as risk ratios, risk differences, and weighted or standardized mean differences, as appropriate. Meta-regression was employed to identify causes of heterogeneity. Subgroup analysis was performed to assess the effect of early range of motion.

RESULTS

Ten studies met the inclusion criteria. If functional rehabilitation with early range of motion was employed, rerupture rates were equal for surgical and nonsurgical patients (risk difference = 1.7%, p = 0.45). If such early range of motion was not employed, the absolute risk reduction achieved by surgery was 8.8% (p = 0.001 in favor of surgery). Surgery was associated with an absolute risk increase of 15.8% (p = 0.016 in favor of nonoperative management) for complications other than rerupture. Surgical patients returned to work 19.16 days sooner (p = 0.0014). There was no significant difference between the two treatments with regard to calf circumference (p = 0.357), strength (p = 0.806), or functional outcomes (p = 0.226).

CONCLUSIONS

The results of the meta-analysis demonstrate that conservative treatment should be considered at centers using functional rehabilitation. This resulted in rerupture rates similar to those for surgical treatment while offering the advantage of a decrease in other complications. Surgical repair should be preferred at centers that do not employ early-range-of-motion protocols as it decreased the rerupture risk in such patients.

Novel surgical technique and early kinesiotherapy for acute Achilles tendon rupture

BACKGROUND

This prospective study was performed to investigate the contribution of early kinesiotherapy, the active exercise and movement of the ankle and knee joints, following a novel surgical technique for reconstruction of the acutely ruptured Achilles tendon and the underlying mechanisms involved.

MATERIALS AND METHODS

One hundred and seven patients with an acute Achilles tendon rupture received postoperative early kinesiotherapy treatment following the novel ``Pa-bone'' surgical technique. Clinical outcomes were evaluated using the Achilles tendon rupture score, a score for measuring outcomes related to symptoms and physical activity, and bilateral ultrasonographic examination of the Achilles tendon.

RESULTS

Range-of-motion recovery equal to the intact side averaged 7~weeks. Double-legged heel rises and sustained single-leg heel rise exercises were possible at an average of 1~week and 60± 2 days, respectively. All patients could perform single-leg heel rise of the injured foot for 60± 23 seconds at an average of 12 weeks. No rerupture was observed. In addition, ultrasonographic examination revealed that the cross-sectional areas of the ruptured tendon were significantly larger than those of the healthy side. Overall reconstruction of the Achilles tendon was obtained for most of the patients.

CONCLUSION

Postoperative early kinesiotherapy treatment following Pa-bone surgical technique resulted in excellent clinical outcomes and contributed to the overall reconstruction of the Achilles tendon.

Long-term functional outcome of bilateral spontaneous and simultaneous Achilles tendon ruptures

Bilateral simultaneous ruptures are rare comprising less than 1% of all Achilles tendon ruptures. Risk factors for bilateral ruptures include chronic diseases and medications such as corticosteroids and fluoroquinolones. There is little in the literature on the long-term functional outcome of bilateral Achilles tendon ruptures. This article present a series of 3 cases of simultaneous and spontaneous bilateral Achilles tendon ruptures with a minimum of 5-year follow up suggesting a good functional outcome.

Structural and biomechanical characteristics after early mobilization in an Achilles tendon rupture model: operative versus nonoperative treatment

Acute Achilles tendon ruptures are common sports injuries; however, treatment remains a clinical challenge. Studies show a superior effect of early mobilization and full weight bearing on tendon healing and clinical outcome; however, few data exist on structural and biomechanical characteristics in the early healing phase. This study investigated the histological and biomechanical characteristics of early mobilization and full weight bearing in an Achilles tendon rupture model. Eighty rats underwent dissection of a hindpaw Achilles tendon; 40 rats were treated conservatively and 40 underwent open repair of the transected Achilles tendon by suturing. Early mobilization and full weight bearing were allowed in both groups. At 1, 2, 4, and 8 weeks after tenotomy, tensile strength, stiffness, thickness, tissue characteristics (histological analysis), and length were determined. Dissected Achilles tendons healed in all animals during full weight-bearing early mobilization. One and 2 weeks after tenotomy, rats in the operative group showed increased tensile strength and stiffness compared with the nonoperative group. Repair-site diameters were increased at 1, 2, and 8 weeks after tenotomy. Tendon length was decreased in the operative group throughout observation, whereas the nonoperative group showed increased structural characteristics on the cellular level and a more homogeneous collagen distribution. Surgical treatment of dissected rat Achilles tendons showed superior biomechanical characteristics within the first 2 weeks. Conservative treatment resulted in superior histological findings but significant lengthening of the tendon in the early healing phase (weeks 1-8).

Operative versus nonoperative management of acute Achilles tendon ruptures: a quantitative systematic review of randomized controlled trials

BACKGROUND

Despite several randomized controlled trials comparing operative to nonoperative management of Achilles tendon ruptures, the optimal management of this condition remains the subject of significant debate. Rerupture is a known complication, but most level I studies have not shown a significant difference in the incidence of reruptures when comparing operative to nonoperative management.

PURPOSE

The goal of this systematic review was to identify all randomized controlled trials comparing operative and nonoperative management of Achilles tendon ruptures and to meta-analyze the data with reruptures being the primary outcome. Secondary outcomes including strength, time to return to work, and other complications were analyzed as well.

STUDY DESIGN

Meta-analysis.

METHODS

We searched multiple online databases to identify English-language, prospective randomized controlled trials comparing open surgical repair of acute Achilles tendon ruptures to nonoperative management. Rerupture was our primary outcome. Secondary outcomes included strength, time to return to work, deep infections, sural nerve sensory disturbances, noncosmetic scar complaints, and deep venous thrombosis. Coleman methodology scores were calculated for each included study. Data were extracted from all qualifying articles and, when appropriate, pooled and meta-analyzed.

RESULTS

Seven level I trials involving 677 patients met inclusion criteria. Coleman scores were 95, 95, 95, 89, 78, 97, and 92. Open repair was associated with a significantly lower rerupture rate compared with nonoperative treatment (3.6% vs 8.8%; odds ratio, 0.425; 95% confidence interval, 0.222-0.815). The incidence of deep infections was significantly higher for patients treated with surgery (P = .0113). The incidences of noncosmetic scar complaints and sural nerve sensory disturbances were also significantly higher in patients treated with surgery (P < .001 for each). Strength measurements were not standardized and therefore could not be meta-analyzed.

CONCLUSION

Open surgical repair of acute Achilles tendon ruptures significantly reduces the risk of reruptures when compared with nonoperative management. Several other complications, which are clearly avoided with nonoperative treatment, occur with a significantly higher incidence when surgical repair is performed. The available literature makes it difficult to compare the return of strength in the involved lower extremity after operative or nonoperative management. Future studies may focus on testing strength in a more functional and reproducible manner than isokinetic testing.

Ability to perform a single heel-rise is significantly related to patient-reported outcome after Achilles tendon rupture

This study evaluated the short-term recovery of function after an acute Achilles tendon rupture, measured by a single-legged heel-rise test, with main emphasis on the relation to the patient-reported outcomes and fear of physical activity and movement (kinesiophobia). Eighty-one patients treated surgically or non-surgically with early active rehabilitation after Achilles tendon rupture were included in the study. Patient's ability to perform a single-legged heel-rise, physical activity level, patient-reported symptoms, general health, and kinesiophobia was evaluated 12 weeks after the injury. The heel-rise test showed that 40 out of 81 (49%) patients were unable to perform a single heel-rise 12 weeks after the injury. We found that patients who were able to perform a heel-rise were significantly younger, more often of male gender, reported a lesser degree of symptoms, and also had a higher degree of physical activity at 12 weeks. There was also a significant negative correlation between kinesiophobia and all the patient-reported outcomes and the physical activity level. The heel-rise ability appears to be an important early achievement and reflects the general level of healing, which influences patient-reported outcome and physical activity. Future treatment protocols focusing on regaining strength early after the injury therefore seem to be of great importance. Kinesiophobia needs to be addressed early during the rehabilitation process.

Open repair of the acutely torn Achilles tendon under local anaesthetic

BACKGROUND

Where surgery has been preferred, the torn Achilles tendon (AT) has most commonly been repaired under general or spinal anaesthetic (GA). Repair using local anaesthetic (LA) has been reported, but does not appear to be widely used.

METHODS

We retrospectively reviewed 87 patients, following open repair using either GA or LA at Nelson Hospital, 2001–2005. Calf strength and ankle range of motion (ROM) were assessed. Subjective pain and function were assessed using the American Academy of Orthopaedic Surgeons Foot and Ankle Questionnaire. Complications, time off work and sport, time in theatre, and hospital were recorded.

RESULTS

Fifty-nine tendons were repaired under GA (68%) and 28 under LA (32%). Outcomes were similar for each group. There was no significant difference in strength and ROM. Foot and Ankle Questionnaire scores were similar. Total theatre time averaged 57 min for GA and 37 min for LA (P = 0.01). LA repairs (82%) were performed as a day case compared with 10% of the GA repairs (P = 0.01). LA patients had a quicker return to work. GA complications included two deep vein thromboses and two pulmonary emboli. One patient from each group had a re-rupture.

CONCLUSION

A repair of the acutely ruptured AT under LA is at least as effective as repair under GA with regard to function, long-term pain and patient satisfaction. LA repair results in significant cost savings due to less theatre time, fewer anaesthetic costs, and a shorter hospital stay.

Current concepts in the rehabilitation of an acute rupture of the tendo Achillis

Rupture of the tendo Achillis is a common injury with a rising incidence. Traditionally the key question following this injury has been whether or not to operate. However a contemporary Cochrane review highlighted that the method of rehabilitation may also have an important contribution to the outcome. Since this review, various early weight-bearing rehabilitation protocols have been described. Currently evidence points to the use of early functional rehabilitation, regardless of operative or non-operative management. However, there is no consensus on which exact functional rehabilitation protocol should be used. Future research should be directed towards improving our understanding of how the different rehabilitative components interact in the tendo Achillis as it heals.

Bilateral simultaneous Achilles tendon rupture in the absence of risk factors: a case report

The Achilles tendon is the most frequently ruptured tendon in the lower limb and comprises approximately 20% of all large tendon ruptures.Spontaneous rupture of the Achilles tendon is usually observed in healthy, active individuals in the third to fifth decades of life and is twice as common in males. It usually occur following high-performance activities.The authors report a case of unusual presentation of bilateral simultaneous Achilles tendon ruptures that occurred following a low-effort-level sport and in the absence of risk factors. In the case presented, nonoperative treatment led to a successful outcome.

Operative versus nonoperative treatment for acute Achilles tendon rupture: a meta-analysis based on current evidence

PURPOSE

The aim of this study was to evaluate, in a meta-analysis, the clinical effectiveness of operative treatment for acute Achilles tendon rupture (AATR) compared with nonoperative treatment.

METHODS

We systematically searched six electronic databases (Medline, Embase, Clinical Ovid, BIOSIS and Cochrane registry of controlled clinical trials) to identify randomised controlled trials (RCTs) in which operative treatment was compared with nonoperative treatment for AATR from 1980 to 2011. Trial quality was assessed using the modified Jadad scale. The data was using fixed-effects and random-effects models with mean differences and risk ratios for continuous and dichotomous variables, respectively.

RESULTS

Ten RCTs with a total of 894 patients were screened. The results showed that operative was superior to nonoperative treatment regarding lower risk of re-rupture (P = 0.002) and shorter time for sick leave (P = 0.009) but inferior to nonoperative treatment regarding complication risks (P = 0.004). No significant difference was identified between the two methods regarding the number of patients who successfully returned to pre-injury sports (P = 0.30). Subgroup analyses revealed significant differences in relation to scar adhesion (P < 0.00001), superficial infection (P = 0.05), and sensibility disturbance (P = 0.0003). However, no significant differences were found between the two interventions in relation to deep infection (P = 0.22), deep vein thrombosis (DVT) (P = 0.14), and extreme Achilles tendon lengthening (P = 0.31). Little consensus was obtained in the functional recovery from current trials as a result of an inconsistent assessment system.

CONCLUSIONS

Compared with conservative treatment, operative treatment can effectively reduce the risk of re-rupture but increase the probability of complications. The increased complication risk may be associated with open repair surgery. However, no sufficient evidence is available from current studies to support the belief that operation may lead to better functional recovery.

Wound complications with posterior midline and posterior medial leg incisions: a systematic review

There is no consensus on the optimal incisional approach at the posterior leg to avoid wound healing complications. The purpose of this systematic review is to report and compare complication rates associated with two common incisions used to approach the Achilles tendon in order to provide additional recommendations for optimal incision placement.

MATERIALS AND METHODS

Four electronic databases were searched using keywords for procedures using posterior leg incisions. A total of 8724 studies were analyzed and subjected to inclusion and exclusion criteria. Once inclusion criteria were met, each article was placed in 1 of 2 groups based on incision placement: midline (group 1) or posterior medial (group 2). Study format, patient demographics, surgical indication and other details, and wound complications were recorded. The data obtained was reviewed for trends between the two groups.

RESULTS

38 articles met the inclusion criteria. Seven articles used the midline approach (group 1) whereas 31 articles used the posterior medial incision (group 2). The 38 articles included 1287 patients, of whom 25.6% were female with an average age of 43.9 years. Group 1 included 142 patients and group 2 had 1145 patients. The total wound complication rate among all reports was determined to be 8.2%, with 7.0% and 8.3% between groups 1 and 2, respectively.

DISCUSSION

Although incision placement may influence wound healing complications, it appears that additional factors such as advanced age, delay in surgical intervention, gender, comorbid conditions, prior surgery, and postoperative protocols also play a role. This report suggests that a midline approach is no less precarious in avoidance of wound complications regardless of patient demographics or other surgical details in comparison with a posterior medial incision.

LEVEL OF EVIDENCE

Therapeutic, Level IV.

The non-operative functional management of patients with a rupture of the tendo Achillis leads to low rates of re-rupture

Controversy surrounds the most appropriate treatment method for patients with a rupture of the tendo Achillis. The aim of this study was to assess the long term rate of re-rupture following management with a non-operative functional protocol. We report the outcome of 945 consecutive patients (949 tendons) diagnosed with a rupture of the tendo Achillis managed between 1996 and 2008. There were 255 female and 690 male patients with a mean age of 48.97 years (12 to 86). Delayed presentation was defined as establishing the diagnosis and commencing treatment more than two weeks after injury. The overall rate of re-rupture was 2.8% (27 re-ruptures), with a rate of 2.9% (25 re-ruptures) for those with an acute presentation and 2.7% (two re-ruptures) for those with delayed presentation. This study of non-operative functional management of rupture of the tendo Achillis is the largest of its kind in the literature. Our rates of re-rupture are similar to, or better than, those published for operative treatment. We recommend our regime for patients of all ages and sporting demands, but it is essential that they adhere to the protocol.

Percutaneous & Mini Invasive Achilles tendon repair

Rupture of the Achilles tendon is a considerable cause of morbidity with reduced function following injury. Recent studies have shown little difference in outcome between the techniques of open and non-operative treatment using an early active rehabilitation programme. Meta-analyses have shown that non-operative management has increased risk of re-rupture whereas surgical intervention has risks of complications related to the wound and iatrogenic nerve injury. Minimally invasive surgery has been adopted as a way of reducing infections rates and wound breakdown however avoiding iatrogenic nerve injury must be considered. We discuss the techniques and outcomes of percutaneous and minimally invasive repairs of the Achilles tendon.

Acute Achilles tendon rupture

Achilles tendon rupture is a common sports-related injury, with the incidence of acute ruptures continuing to increase. Achilles ruptures can be missed, or presentation may be delayed. Clinical tests assist diagnosis, with the Thompson and Matles tests being the most sensitive and specific. Ultrasound provides a valuable adjunct for diagnosing acute Achilles tendon ruptures. Traditionally, operative management has led to lower re-rupture rates than conservative treatment, but surgery increases the risk of complications such as adhesions and wound infection. More recently, however, non-operative treatment consisting of early mobilisation and rehabilitation, produces comparable re-rupture rates and functional outcomes to surgery. Percutaneous surgery may reduce the risk of operative complications, but needs to be more widely practised. In the present review we discuss the anatomy, aetiology, mechanism of injury, clinical assessment and investigations for diagnosing acute Achilles tendon ruptures. The debate regarding operative versus non-operative management is also considered.

Major functional deficits persist 2 years after acute Achilles tendon rupture

PURPOSE

The purpose of this prospective randomized controlled study was to evaluate the long-term results after an acute Achilles tendon rupture in patients treated surgically or non-surgically. The focus was to evaluate whether any improvements occurred between the one and 2-year evaluation.

METHOD

Eighty-one patients (67 men, 14 women) with a mean (SD) age of 42 (9.1) were included in this study. Forty-two patients were treated surgically, and 39 treated non-surgically otherwise the treatment was identical for the two groups. All patients were evaluated using the Achilles tendon Total Rupture Score (ATRS), the Physical Activity Scale (PAS) and validated functional tests one and 2 years after injury.

RESULTS

There were significant functional deficits on the injured side compared with the contralateral side 2 years after Achilles tendon rupture, regardless of treatment. Only minor improvements, even though statistically significant, occurred between the 1- and 2-year evaluations. The physical activity level remained significantly reduced as compared with prior to injury, but the ATRS mean was relatively high in both groups (89 and 90).

CONCLUSION

This long-term follow-up indicates that the majority of patients with an Achilles tendon rupture have not fully recovered (in regards to symptoms, physical activity level and function) 2 years after injury regardless of surgical or non-surgical treatment. Furthermore, only minor improvements occur between the 1- and 2-year evaluations. This indicates that to enhance the final outcome the focus should be on improvements in treatment within the first year. The patients appear to have adjusted to their impairments since the patient-reported outcome is relatively high in spite of functional deficits and lower activity level compared with pre-injury.

LEVEL OF EVIDENCE

Prospective randomized study, Level I.

Bilateral simultaneous achilles tendon rupture in the absence of risk factors

The Achilles tendon is the most frequently ruptured tendon in the lower limb and comprises approximately 20% of all large tendon ruptures. Spontaneous rupture of the Achilles tendon is usually observed in healthy, active individuals in the third to fifth decades of life and is twice as common in males. It usually occurs following high-performance activities. The authors report a case of unusual presentation of bilateral simultaneous Achilles tendon ruptures that occurred following a low-effort-level sport and in the absence of risk factors. In the case presented, nonoperative treatment led to a successful outcome.

LEVEL OF EVIDENCE

Therapeutic, Level IV, retrospective case study.

Epidemiology and outcomes of acute Achilles tendon rupture with operative or nonoperative treatment using an identical functional bracing protocol

BACKGROUND

This study reports on the demographics of acute Achilles tendon rupture in our region and compares the results of a selective approach to operative and nonoperative treatment using an identical rehabilitation program with functional bracing.

MATERIALS AND METHODS

A consecutive series of 363 patients, aged 15 to 60 years, treated over 8.5 years by either open operative repair (143) or nonoperatively (220) were compared with respect to demographics, re-rupture rate, and major wound complication.

RESULTS

There was an almost equal number of males (159) and females (152) up to age 50 years but males comprised 73% of patients aged 51 to 60 years. Netball was the most common cause of injury and explains the relatively high incidence in females. In the 143 patients treated surgically there were two re-ruptures (1.4%) and two reoperations for wound complications (1.4%). In the 220 patients treated nonoperatively there were 19 re-ruptures (8.6%), 13 of 113 males (11.5%) and six of 107 females (5.6%). There was a significantly lower re-rupture rate, and reoperation rate in the surgical group (p < 0.05). In the nonoperative group there was a significantly lower rate of re-rupture in patients over 40 (six of 119) (4.1%) compared with those 40 years and under (13 of 99, 13.1%) and between females over 40 when compared with males 40 years and under.

CONCLUSION

In our region there is a high incidence of Achilles tendon rupture among women due to netball and results in a younger age of injury than previously reported. Our results support surgery in patients less than 40 years, particularly males, if there are no contraindications. Functional bracing as part of nonoperative treatment can result in low re-rupture rates in patients over 40, especially in females.

Achilles tendon ruptures in elite athletes

BACKGROUND

The management of Achilles tendon (AT) ruptures in elite athletes can be challenging. We performed a retrospective review of prospectively collected data study to evaluate the results of percutaneous repair of an acute AT rupture in elite athletes.

MATERIALS AND METHODS

Seventeen elite athletes with prodromal tendinous problems sustained an acute tear of the AT and underwent percutaneous surgical repair. We performed preoperative evaluations the day of surgery, and report the results of postoperative evaluation at a final followup at an average of 72 months from the procedure. Each patient was evaluated for limb dominance, trauma history, duration and type of preoperative symptoms, and postoperative AT Total Rupture Score (ATRS).

RESULTS

All patients were able to fully weightbear on the operated limb by the end of the 8th postoperative week. The average time to return to full sport participation was 4.8±0.9 months. Two of the 15 elite athletes on whom we have full data suffered from a superficial infection of the surgical wound.

CONCLUSION

Our study suggests that percutaneous repair of the AT is a good option for elite athletes, allowing a safe and prompt return to sport activities.

Operative versus nonoperative treatment of acute Achilles tendon ruptures: a multicenter randomized trial using accelerated functional rehabilitation

BACKGROUND

To date, studies directly comparing the rerupture rate in patients with an Achilles tendon rupture who are treated with surgical repair with the rate in patients treated nonoperatively have been inconclusive but the pooled relative risk of rerupture favored surgical repair. In all but one study, the limb was immobilized for six to eight weeks. Published studies of animals and humans have shown a benefit of early functional stimulus to healing tendons. The purpose of the present study was to compare the outcomes of patients with an acute Achilles tendon rupture treated with operative repair and accelerated functional rehabilitation with the outcomes of similar patients treated with accelerated functional rehabilitation alone.

METHODS

Patients were randomized to operative or nonoperative treatment for acute Achilles tendon rupture. All patients underwent an accelerated rehabilitation protocol that featured early weight-bearing and early range of motion. The primary outcome was the rerupture rate as demonstrated by a positive Thompson squeeze test, the presence of a palpable gap, and loss of plantar flexion strength. Secondary outcomes included isokinetic strength, the Leppilahti score, range of motion, and calf circumference measured at three, six, twelve, and twenty-four months after injury.

RESULTS

A total of 144 patients (seventy-two treated operatively and seventy-two treated nonoperatively) were randomized. There were 118 males and twenty-six females, and the mean age (and standard deviation) was 40.4 ± 8.8 years. Rerupture occurred in two patients in the operative group and in three patients in the nonoperative group. There was no clinically important difference between groups with regard to strength, range of motion, calf circumference, or Leppilahti score. There were thirteen complications in the operative group and six in the nonoperative group, with the main difference being the greater number of soft-tissue-related complications in the operative group.

CONCLUSIONS

This study supports accelerated functional rehabilitation and nonoperative treatment for acute Achilles tendon ruptures. All measured outcomes of nonoperative treatment were acceptable and were clinically similar to those for operative treatment. In addition, this study suggests that the application of an accelerated-rehabilitation nonoperative protocol avoids serious complications related to surgical management.

Acute achilles tendon rupture: a randomized, controlled study comparing surgical and nonsurgical treatments using validated outcome measures

BACKGROUND

There is no consensus regarding the optimal treatment for patients with acute Achilles tendon rupture. Few randomized controlled studies have compared outcomes after surgical or nonsurgical treatment with both groups receiving early mobilization.

PURPOSE

This study was undertaken to compare outcomes of patients with acute Achilles tendon rupture treated with or without surgery using early mobilization and identical rehabilitation protocols.

STUDY DESIGN

Randomized, controlled trial; Level of evidence, 1.

METHODS

Ninety-seven patients (79 men, 18 women; mean age, 41 years) with acute Achilles tendon rupture were treated and followed for 1 year. The primary end point was rerupturing. Patients were evaluated using the Achilles tendon Total Rupture Score (ATRS), functional tests, and clinical examination at 6 and 12 months after injury.

RESULTS

There were 6 (12%) reruptures in the nonsurgical group and 2 (4%) in the surgical group (P = .377). The mean 6- and 12-month ATRS were 72 and 88 points in the surgical group and 71 and 86 points in the nonsurgical group, respectively. Improvements in ATRS between 6 and 12 months were significant for both groups, with no significant between-group differences. At the 6-month evaluation, the surgical group had better results compared with the nonsurgically treated group in some of the muscle function tests; however, at the 12-month evaluation there were no differences between the 2 groups except for the heel-rise work test in favor of the surgical group. At the 12-month follow-up, the level of function of the injured leg remained significantly lower than that of the uninjured leg in both groups.

CONCLUSION

The results of this study did not demonstrate any statistically significant difference between surgical and nonsurgical treatment. Furthermore, the study suggests that early mobilization is beneficial for patients with acute Achilles tendon rupture whether they are treated surgically or nonsurgically. The preferred treatment strategy for patients with acute Achilles tendon rupture remains a subject of debate. Although the study met the sample size dictated by the authors' a priori power calculation, the difference in the rerupture rate might be considered clinically important by some.

Surgical interventions for treating acute Achilles tendon ruptures

BACKGROUND

There is a lack of consensus on the best management of the acute Achilles tendon rupture. Treatment can be broadly classified into surgical (open or percutaneous) and non-surgical (cast immobilisation or functional bracing).

OBJECTIVES

To evaluate the relative effects of surgical versus non-surgical treatment, or different surgical interventions, for acute Achilles tendon ruptures in adults.

SEARCH STRATEGY

We searched the Cochrane Bone, Joint and Muscle Trauma Group Specialised Register (July 2009), the Cochrane Central Register of Controlled Trials (The Cochrane Library 2009, Issue 3), MEDLINE (1966 to 20th July 2009), EMBASE (1966 to 2009 week 29), CINAHL (1983 to July 2007) and reference lists of articles.

SELECTION CRITERIA

All randomised and quasi-randomised trials comparing surgical versus non-surgical treatment or different surgical methods for acute Achilles tendon ruptures in adults.

DATA COLLECTION AND ANALYSIS

Two review authors independently selected potentially eligible trials; trials were then assessed for quality using a 10-item scale. Where possible, data were pooled.

MAIN RESULTS

Twelve trials involving 844 participants were included. One trial tested two comparisons.Quality assessment revealed a poor level of methodological rigour in many studies, particularly with regard to concealment of allocation and the lack of assessor blinding.Open surgical treatment compared with non-surgical treatment (6 trials, 536 participants) was associated with a statistically significant lower risk of rerupture (risk ratio (RR) 0.41, 95% confidence interval (CI) 0.21 to 0.77), but a higher risk of other complications including infection (RR 4.89, 95% CI 1.09 to 21.91), adhesions and disturbed skin sensibility (numbness). Functional status including sporting activity was variably and often incompletely reported, including frequent use of non standardised outcome measures, and the results were inconclusive.Open surgical repair compared with percutaneous repair (4 trials, 174 participants) was associated with a higher risk of infection (RR 9.32, 95% CI 1.77 to 49.16). These figures should be interpreted with caution because of the small numbers involved. Similarly, no definitive conclusions could be made regarding different tendon repair techniques (3 trials, 147 participants).

AUTHORS' CONCLUSIONS

Open surgical treatment of acute Achilles tendon ruptures significantly reduces the risk of rerupture compared with non-surgical treatment, but produces significantly higher risks of other complications, including wound infection. The latter may be reduced by performing surgery percutaneously.

Diagnosis and treatment of acute Achilles tendon rupture

This clinical practice guideline is based on a series of systematic reviews of published studies in the available literature on the diagnosis and treatment of acute Achilles tendon rupture. None of the 16 recommendations made by the work group was graded as strong; most are graded inconclusive; four are graded weak; two are graded as moderate strength; and two are consensus statements. The two moderate-strength recommendations include the suggestions for early postoperative protective weight bearing and for the use of protective devices that allow for postoperative mobilization.

Novel approach to repair of acute achilles tendon rupture: early recovery without postoperative fixation or orthosis

BACKGROUND

Immobilization or orthosis is required after conventional Achilles tendon surgery. Hypothesis This new Achilles tendon repair approach enables early rehabilitation without any postoperative immobilization or orthosis.

STUDY DESIGN

Case series; Level of evidence, 4.

METHODS

Twenty consecutive patients (14 men and 6 women; mean age, 43.4 years; range, 16-70 years) who had acute subcutaneous Achilles tendon rupture were treated by the new method, with an average follow-up of 2.9 years (range, 2-4.8 years). Among them, 15 injuries were sports-related and 5 were work-related. The authors applied a side-locking loop technique of their own design for the core suture, using braided polyblend suture thread, with peripheral cross-stitches added. The patients started active and passive ankle mobilization from the next day, partial weightbearing walking from 1 week, full-load walking from 4 weeks, and double-legged heel raises from 6 weeks after surgery.

RESULTS

The range of motion recovery equal to the intact side averaged 3.2 weeks. Double-legged heel raises and 20 continuous single-legged heel raise exercises were possible at an average of 6.3 weeks and 9.9 weeks, respectively. T2-weighted magnetic resonance signal intensity recovered to equal that of the intact portion of the same tendon at 12 weeks. The patients resumed sports activities or heavy labor at an average of 14.4 weeks. The Achilles tendon rupture score averaged 98.3 at 24 weeks. There were no complications.

CONCLUSION

This new Achilles tendon repair approach enables early mobilization exercise without costly specialized orthosis or immobilization and allows an early return to normal life and sports activities, reducing the physical and economic burden on patients.