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Young SW, Patel A, Zhu M, van Dijck S, McNair P, Bevan WP, Tomlinson M. Weight-Bearing in the Nonoperative Treatment of Acute Achilles Tendon Ruptures: A Randomized Controlled Trial. J Bone Joint Surg Am 2014; 96:1073-1079. [PMID: 24990972 DOI: 10.2106/jbjs.m.00248] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
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.
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Affiliation(s)
- Simon W Young
- 836 Peary Lane, Foster City, San Mateo, CA 94404. E-mail address:
| | - Alpesh Patel
- Department of Orthopaedic Surgery, Middlemore Hospital, 100 Hospital Road, Papatoetoe 2025, Auckland, New Zealand
| | - Mark Zhu
- University of Auckland School of Medicine, 85 Park Road, Grafton 1023, Auckland, New Zealand
| | - Stephanie van Dijck
- Department of Orthopaedic Surgery, Middlemore Hospital, 100 Hospital Road, Papatoetoe 2025, Auckland, New Zealand
| | - Peter McNair
- Health & Rehabilitation Research Centre, AUT University, 55 Wellesley Street East, Central Auckland 1010, Auckland, New Zealand
| | - Wesley P Bevan
- Department of Orthopaedic Surgery, Middlemore Hospital, 100 Hospital Road, Papatoetoe 2025, Auckland, New Zealand
| | - Matthew Tomlinson
- Department of Orthopaedic Surgery, Middlemore Hospital, 100 Hospital Road, Papatoetoe 2025, Auckland, New Zealand
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Sun C, Zhuo Q, Chai W, Chen J, Yang W, Tang P, Wang Y. Conservative interventions for treating Achilles tendon ruptures. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2013. [DOI: 10.1002/14651858.cd010765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
OBJECTIVES To 1) review the existing evidence for early mobilization of the critically ill patients in the ICU with polytrauma; 2) provide intensivists with an introduction to the biomechanics, physiology, and nomenclature of injuries; 3) summarize the evidence for early mobilization in each anatomic area; and 4) provide recommendations for the mobilization of these patients. DATA SOURCES A literature search of the MEDLINE and EMBASE databases for articles published in English between 1980 and 2011. STUDY SELECTION Studies pertaining to physical therapy and rehabilitation in trauma patients were selected. Articles were excluded if they dealt with pediatrics, geriatrics, burn injuries, isolated hand injuries, chronic (i.e., not acute) injuries, nontraumatic conditions, and pressure/decubitus ulcers, were in a language other than English, were published only in abstract form, were letters to the editor, were case reports, or were published prior to 1980. DATA EXTRACTION Reviewers extracted data and summarized results according to anatomical areas. DATA SYNTHESIS Of 1,411 titles and abstracts, 103 met inclusion criteria. We found no articles specifically addressing the rehabilitation of polytrauma patients in the ICU setting or patients with polytrauma in general. We summarized the articles addressing the role of mobilization for specific injuries and treatments. We used this evidence, in combination with biologic rationale and physician and surgeon experience and expertise, to summarize the important considerations when providing physical therapy to these patients in the ICU setting. CONCLUSIONS There is a paucity of evidence addressing the role of early mobilization of ICU patients with polytrauma and patients with polytrauma in general. Evidence for the beneficial role of early mobilization of specific injuries exists. Important considerations when applying a strategy of early physical therapy and mobilization to this distinctive patient group are summarized.
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Jackson G, Sinclair VF, McLaughlin C, Barrie J. Outcomes of functional weight-bearing rehabilitation of Achilles tendon ruptures. Orthopedics 2013; 36:e1053-9. [PMID: 23937753 DOI: 10.3928/01477447-20130724-23] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
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.
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Abstract
The incidence of AT rupture has increased in recent decades. AT ruptures frequently occur in the third or fourth decade of life in sedentary individuals who play sport occasionally. Ruptures also occur in elite athletes. Clinical examination must be followed by imaging. Conservative management and early mobilization can achieve excellent results, but the rerupture rate is not acceptable for the management of young, active, or athletic individuals. Open surgery is the most common option for AT ruptures, but there are risks of superficial skin breakdown and wound problems. These problems can be prevented with percutaneous repair.
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Affiliation(s)
- Umile Giuseppe Longo
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, Rome 00128, Italy.
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Osarumwense D, Wright J, Gardner K, James L. Conservative treatment for acute Achilles tendon rupture: survey of current practice. J Orthop Surg (Hong Kong) 2013; 21:44-6. [PMID: 23629986 DOI: 10.1177/230949901302100112] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
PURPOSE To survey the practice of orthopaedic consultants in the Greater London area for treating Achilles tendon ruptures. METHODS 221 orthopaedic consultants working in 28 hospitals within the Greater London area were identified. A questionnaire regarding conservative treatment for acute Achilles tendon ruptures was sent. The choice of immobilisation, the period of immobilisation, the time to weight bearing, the use of heel raises, and the use of diagnostic ultrasonography were enquired about. RESULTS 62 of 86 respondents treated Achilles tendon ruptures conservatively by below-knee casts (n=51), above-knee casts (n=5), or functional braces (n=6). The most common immobilisation regimen (n=7) was to keep the foot in a sequence of an equinus position, a semi-equinus position, and a neutral position (3 weeks in each position). After cast removal, 45 of respondents preferred to use a heel raise for a median duration of 4 (range, 2-36) weeks. Respectively for foot and ankle specialists (n=24) and other orthopaedic specialists (n=38), the median immobilisation period prescribed was 8 (range, 3-13) and 9 (range, 6-36) weeks, respectively (p=0.625), whereas the median time to weight bearing prescribed was 6 (range, 0-9) and 6 (range, 0-12) weeks, respectively (p=0.402). CONCLUSION Functional bracing was not as widely used as below-knee cast immobilisation. There was no consensus on the optimal immobilisation regimen.
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57
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Thevendran G, Sarraf KM, Patel NK, Sadri A, Rosenfeld P. The ruptured Achilles tendon: a current overview from biology of rupture to treatment. Musculoskelet Surg 2013; 97:9-20. [PMID: 23546858 DOI: 10.1007/s12306-013-0251-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2012] [Accepted: 03/21/2013] [Indexed: 06/02/2023]
Abstract
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.
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Affiliation(s)
- G Thevendran
- Department of Trauma and Orthopaedic Surgery, Tan Tock Seng Hospital, Singapore, Singapore
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58
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Wilkins R, Bisson LJ. Operative versus nonoperative management of acute Achilles tendon ruptures: a quantitative systematic review of randomized controlled trials. Am J Sports Med 2012; 40:2154-60. [PMID: 22802271 DOI: 10.1177/0363546512453293] [Citation(s) in RCA: 162] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
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.
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Affiliation(s)
- Ryan Wilkins
- Department of Orthopaedic Surgery, The State University of New York at Buffalo, 33 Linden Avenue, Buffalo, NY 14214, USA.
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59
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Wang CC, Chen PY, Wang TM, Wang CL. Ultrasound-guided minimally invasive surgery for achilles tendon rupture: preliminary results. Foot Ankle Int 2012; 33:582-90. [PMID: 22835396 DOI: 10.3113/fai.2012.0582] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Many surgeons prefer surgical repair for Achilles tendon ruptures in an attempt to reduce the risk of rerupture. To minimize wound complications, the use of minimally invasive surgery has become more popular recently. In line with this, the use of ultrasound to guide Achilles tendon repair is reported in this study. METHODS From March 2005 to January 2008, 23 patients with Achilles tendon rupture were repaired by the same surgeon. The ages of the patients ranged from 19 to 67 years old, with an average of 43 years old. The repair of the Achilles tendon was achieved through a stab wound under the guidance of ultrasonography. A control group consisted of 25 patients who received traditional open Achilles tendon repair. RESULTS The average operation time was 52 minutes, and the average wound size was 1.1 cm. The short leg cast was removed 4 weeks after the surgery, and serial casting was used for another 3 to 4 weeks. The postoperative AOFAS ankle-hindfoot scores were 98.7 in the experimental group, 96.5 in the control group with no significant difference. The rates of local infection, stiffness of the ankle, pain of the scar and sural nerve injury were better in the experimental group than in the control group with significant difference. CONCLUSIONS Ultrasound-guided surgery was a good choice due to its availability and real-time soft tissue visualization. It can further minimize the size of the surgical wound. Our method has the potential to achieve reliable results.
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Kearney RS, Costa ML. Current concepts in the rehabilitation of an acute rupture of the tendo Achillis. ACTA ACUST UNITED AC 2012; 94:28-31. [PMID: 22219243 DOI: 10.1302/0301-620x.94b1.28008] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
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.
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Affiliation(s)
- R S Kearney
- University of Warwick, Warwick Orthopaedics, Division of Health Sciences, Warwick Medical School, Clinical Sciences Research Laboratories, University Hospital, Clifford Bridge Road, Coventry CV2 2DX, UK.
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61
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Hashim Z, Dahabreh Z, Bin Jemain MT, Williams HR. Bilateral simultaneous Achilles tendon rupture in the absence of risk factors: a case report. Foot Ankle Spec 2012; 5:68-72. [PMID: 22267867 DOI: 10.1177/1938640011434415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
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.
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Affiliation(s)
- Zaid Hashim
- Trauma and Orthopaedic Surgery, Hull Royal Infirmary, Hull, UK
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62
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Wallace RGH, Heyes GJ, Michael ALR. The non-operative functional management of patients with a rupture of the tendo Achillis leads to low rates of re-rupture. ACTA ACUST UNITED AC 2011; 93:1362-6. [PMID: 21969435 DOI: 10.1302/0301-620x.93b10.26187] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
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.
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Affiliation(s)
- R G H Wallace
- Ulster Hospital Dundonald, Upper Newtownards Road, Dundonald, Belfast BT16 1RH, UK.
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63
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Hashim Z, Dahabreh Z, Bin Jemain MT, Williams HR. Bilateral simultaneous achilles tendon rupture in the absence of risk factors. Foot Ankle Spec 2011; 4:175-8. [PMID: 21421940 DOI: 10.1177/1938640010397657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
UNLABELLED 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.
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Affiliation(s)
- Zaid Hashim
- Trauma and Orthopaedic Surgery, Hull Royal Infirmary, Hull, UK.
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64
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Abstract
The Achilles tendon is the most injured tendon of athletes in the lower extremities and is the most common tendon to rupture spontaneously. Operative repair provides earlier return to sporting activities and lesser rate of rerupture. The general goal is to attempt anastomosis of the acute ruptured ends; however, delayed ruptures may require more extensive procedures. New surgical approaches, including percutaneous and mini-open techniques, are being introduced to potentially diminish perioperative complications. Advent of early protective range of motion and rehabilitation has shown a potential for earlier return to sporting activities for Achilles ruptures.
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Trickett RW, Hodgson P, Lyons K, Thomas R. Effect of knee position on gap size following acute Achilles rupture. Foot Ankle Int 2011; 32:1-4. [PMID: 21288427 DOI: 10.3113/fai.2011.0001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Acute traumatic rupture of the tendoachilles is a common problem. Following a recent Cochrane review, operative treatment has been shown to have a lower re-rupture rate compared with conservative treatment, but is associated with a slightly higher rate of other complications. Debate concerning the method and duration of conservative treatment remains. We aimed to assess the effect of knee position on the gap in acute tendoachilles ruptures. MATERIALS AND METHODS Patients with a history and examination consistent with an acute rupture were collected prospectively. They were investigated by the same musculoskeletal consultant radiologist using ultrasonography. Tendon gap was measured with the foot in neutral and full tolerable equinus with the knee both flexed to 90 degrees and fully extended. A pilot study of 10 patients was used to provide data for a power calculation. Following this a total of 25 consecutive patients were recruited for inclusion. A paired Student t-test was used to compare mean differences between the knee flexed/ankle plantarflexed and knee extended/ankle plantarflexed positions on the gap at the rupture site. RESULTS A diagnosis of acute tendoachilles rupture was confirmed in all patients and tendon gap was measured with the knee flexed and extended with the ankle either neutral or plantarflexed. This confirmed there was no significant difference in the tendon gap with the knee flexed or extended provided the foot was in full equinus (p>0.05). CONCLUSION This study showed that knee position had no significant effect on the tendon gap at the rupture site. This study could have considerable implications on the rationale behind conservative treatment and splinting of acute tendoachilles ruptures with no apparent role for knee flexed immobilization.
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Nilsson-Helander K, Silbernagel KG, Thomeé R, Faxén E, Olsson N, Eriksson BI, Karlsson J. Acute achilles tendon rupture: a randomized, controlled study comparing surgical and nonsurgical treatments using validated outcome measures. Am J Sports Med 2010; 38:2186-93. [PMID: 20802094 DOI: 10.1177/0363546510376052] [Citation(s) in RCA: 274] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
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.
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Affiliation(s)
- Katarina Nilsson-Helander
- Katarina Nilsson-Helander, Department of Orthopaedics, Kungsbacka Hospital, SE-434 40 Kungsbacka, Sweden.
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67
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Abstract
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.
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68
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A new conservative-dynamic treatment for the acute ruptured Achilles tendon. Arch Orthop Trauma Surg 2010; 130:363-8. [PMID: 19340434 DOI: 10.1007/s00402-009-0865-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2009] [Indexed: 10/20/2022]
Abstract
INTRODUCTION There is a trend towards surgical treatment of acute ruptured Achilles tendon. While classical open surgical procedures have been shown to restore good functional capacity, they are potentially associated with significant complications like wound infection and paresthesia. Modern mini-invasive surgical techniques significantly reduce these complications and are also associated with good functional results so that they can be considered as the surgical treatment of choice. Nevertheless, there is still a need for conservative alternative and recent studies report good results with conservative treatment in rigid casts or braces. PATIENTS/METHOD We report the use of a dynamic ankle brace in the conservative treatment of Achilles tendon rupture in a prospective non-randomised study of 57 consecutive patients. Patients were evaluated at an average follow-up time of 5 years using the modified Leppilahti Ankle Score, and the first 30 patients additionally underwent a clinical examination and muscular testing with a Cybex isokinetic dynamometer at 6 and 12 months. RESULTS We found good and excellent results in most cases. We observed five complete re-ruptures, almost exclusively in case of poor patient's compliance, two partial re-ruptures and one deep venous thrombosis complicated by pulmonary embolism. CONCLUSION Although prospective comparison with other modern treatment options is still required, the functional outcome after early ankle mobilisation in a dynamic cast is good enough to ethically propose this method as an alternative to surgical treatment.
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69
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Abstract
Incidence of Achilles tendon injury has increased as people continue to be active in their later years. Although acute rupture of the Achilles tendon is most commonly diagnosed using history and physical examination, improvements in magnetic resonance and ultrasound imaging have led to their routine use in evaluating these injuries. Non-operative versus operative management of acute Achilles tendon ruptures has been the subject of much controversy in the current literature, especially in light of non-operative treatment with functional bracing. This article highlights the current controversy and outlines the rationale for nonsurgical treatment of acute Achilles tendon ruptures.
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Affiliation(s)
- Giselle Tan
- Division of Foot and Ankle Surgery, Department of Orthopedic Surgery, University of Michigan, 2098 South Main Street, Ann Arbor, MI 48103, USA
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70
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Metz R, van der Heijden GJMG, Verleisdonk EJMM, Tamminga R, van der Werken C. Recovery of calf muscle strength following acute achilles tendon rupture treatment: a comparison between minimally invasive surgery and conservative treatment. Foot Ankle Spec 2009; 2:219-26. [PMID: 19825777 DOI: 10.1177/1938640009348338] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of this study was to measure the effect of treatment of acute Achilles tendon ruptures on calf muscle strength recovery. Eighty-three patients with acute Achilles tendon rupture were randomly allocated to either minimally invasive surgery with functional after-treatment or conservative treatment by functional bracing. Calf muscle strength using isokinetic testing was evaluated at 3 months and after 6 or more months posttreatment. To exclusively investigate the effect of treatment on outcome, the authors excluded patients with major complications from the analysis. In 31 of 39 patients in the surgical treatment group and 25 of 34 patients in the conservative treatment group, isokinetic strength tests were performed. In the analysis of differences in mean peak torque, no statistically significant differences were found between surgery and conservative treatment, except for plantar flexion strength at 90 degrees per second at the second measurement, favoring conservative treatment. After 8 to 10 months follow- up, loss of plantar flexion strength was still present in the injured leg in both treatment groups. In conclusion, isokinetic muscle strength testing did not detect a statistically significant difference between minimally invasive surgical treatment with functional after-treatment and conservative treatment by functional bracing of acute Achilles tendon ruptures.
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Affiliation(s)
- Roderik Metz
- Department of Surgery, Diakonessenhuis Utrecht, Utrecht, the Netherlands.
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71
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Abstract
The Achilles tendon (AT) is the most frequently ruptured tendon in the human body, but the etiology of AT ruptures is still not completely understood. Percutaneous repair and conservative management are viable alternatives to open surgery, which carries higher complication rates and is the most costly of the 3 management options. Individual patients will have different needs due to their age, occupation, or level of sporting activity. If the studies reporting a rising incidence of AT rupture are accurate, the field of AT surgery will become an increasingly important one for orthopedic surgeons. A major problem in the evaluation of the outcome of management of AT ruptures has been the lack of a universally accepted scoring system for the evaluation of results of management of AT rupture. The AT Total Rupture Score is a self-administered instrument with high clinical utility, and it can be used for measuring the outcome, related to symptoms and physical activity, after treatment in patients with a total AT rupture. Future developments may include the use of adhesives in tendon surgery. An understanding of the role, which cytokines play in tendon healing may also lead to the advent of new treatments, possibly based on gene therapy. However, such novel interventions are unlikely to be in routine clinical use for some time.
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Khan RJK, Fick DP, Keogh A, Carey Smith RL. WITHDRAWN: Interventions for treating acute Achilles tendon ruptures. Cochrane Database Syst Rev 2009:CD003674. [PMID: 19160221 DOI: 10.1002/14651858.cd003674.pub3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND There is lack of consensus on the best management of the acute Achilles tendon (TA) rupture. Treatment can be broadly classified into operative (open or percutaneous) and non-operative (cast immobilisation or functional bracing). Post-operative splintage can be with a rigid cast (above or below the knee) or a more mobile functional brace. OBJECTIVES To identify and summarise the evidence from randomised controlled trials of the effectiveness of different interventions in the treatment of acute Achilles tendon ruptures. SEARCH STRATEGY We searched multiple databases including the Cochrane Musculoskeletal Injuries Group specialised register (to September 2003), reference lists of articles and contacted trialists. Keywords included Achilles Tendon, Rupture, and Tendon Injuries. SELECTION CRITERIA All randomised and quasi-randomised trials comparing different treatment regimens for acute Achilles tendon ruptures. DATA COLLECTION AND ANALYSIS Three reviewers extracted data and independently assessed trial quality by use of a ten-item scale. MAIN RESULTS Fourteen trials involving 891 patients were included. Several of the studies had poor methodology and inadequate reporting of outcomes.Open operative treatment compared with non-operative treatment (4 trials, 356 patients) was associated with a lower risk of rerupture (relative risk (RR) 0.27, 95% confidence interval (CI) 0.11 to 0.64), but a higher risk of other complications including infection, adhesions and disturbed skin sensibility (RR 10.60, 95%CI 4.82 to 23.28).Percutaneous repair compared with open operative repair (2 studies, 94 patients) was associated with a shorter operation duration, and lower risk of infection (RR 10.52, 95% CI 1.37 to 80.52). These figures should be interpreted with caution because of the small numbers involved.Patients splinted with a functional brace rather than a cast post-operatively (5 studies, 273 patients) tended to have a shorter in-patient stay, less time off work and a quicker return to sporting activities. There was also a lower complication rate (excluding rerupture) in the functional brace group (RR 1.88 95%CI 1.27 to 2.76).Because of the small number of patients involved no definitive conclusions could be made regarding different operative techniques (1 study, 51 patients), different non-operative treatment regimes (2 studies, 90 patients), and different forms of post-operative cast immobilisation (1 study, 40 patients). AUTHORS' CONCLUSIONS Open operative treatment of acute Achilles tendon ruptures significantly reduces the risk of rerupture compared to non-operative treatment, but produces a significantly higher risk of other complications, including wound infection. The latter may be reduced by performing surgery percutaneously. Post-operative splintage in a functional brace appears to reduce hospital stay, time off work and sports, and may lower the overall complication rate.
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Affiliation(s)
- Riaz J K Khan
- Trauma and Orthopaedics, University of Western Australia, 1/14-16 Hamersley Street, Cottesloe, Perth, Western Australia, Australia, 6011.
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Metz R, Verleisdonk EJMM, van der Heijden GJMG, Clevers GJ, Hammacher ER, Verhofstad MHJ, van der Werken C. Acute Achilles tendon rupture: minimally invasive surgery versus nonoperative treatment with immediate full weightbearing--a randomized controlled trial. Am J Sports Med 2008; 36:1688-94. [PMID: 18645042 DOI: 10.1177/0363546508319312] [Citation(s) in RCA: 141] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Surgical repair of acute Achilles tendon ruptures is considered superior to nonoperative treatment, but complications other than rerupture range up to 34%. Nonoperative treatment by functional bracing seems a promising alternative. HYPOTHESIS Nonoperative treatment of acute Achilles tendon rupture with functional bracing reduces the number of complications compared with surgical treatment with a minimally invasive technique. STUDY DESIGN Randomized controlled clinical trial; Level of evidence, 2. METHOD Using concealed random allocation, 83 patients with acute Achilles tendon rupture were assigned to nonoperative treatment by functional bracing or minimally invasive surgical treatment followed by tape bandage. Patients were allowed full weightbearing, and follow-up was 1 year. RESULTS Complications risk other than rerupture by intention-to-treat basis was 9 in 42 patients (21%) for surgical treatment and 15 in 41 patients (36%) for nonoperative treatment (risk ratio, 0.59; 95% confidence interval, 0.29-1.19). Reruptures risk was 5 in 41 patients after nonoperative treatment and 3 in 42 patients for surgical treatment (risk ratio, 0.59; 95% confidence interval, 0.15-2.29). The mean time to work was 59 days (SD, 82) after surgical treatment and 108 days (SD, 115) after nonoperative treatment (difference, 49 days; 95% confidence interval, 4-94; P < .05). The difference between treatments for return to sports (risk ratio, 0.55; 95% confidence interval, 0.23-1.29), pain, and treatment satisfaction did not reach statistical significance. CONCLUSION There appears to be a clinically important difference in the risk of complications between minimally invasive surgical treatment and nonoperative treatment for acute Achilles tendon ruptures, but this was not statistically significant.
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Affiliation(s)
- Roderick Metz
- Diakonessenhuis, Bosboomstraat 1, 3582 KE Utrecht, Netherlands.
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75
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Twaddle BC, Poon P. Early motion for Achilles tendon ruptures: is surgery important? A randomized, prospective study. Am J Sports Med 2007; 35:2033-8. [PMID: 17885221 DOI: 10.1177/0363546507307503] [Citation(s) in RCA: 154] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Comparisons of surgically and nonsurgically treated Achilles tendon ruptures have demonstrated that those treated with surgery allow earlier motion and tend to show superior results. However, early motion enhances tendon healing with or without surgery and may be the important factor in optimizing outcomes in patients with Achilles tendon rupture. HYPOTHESIS There is no difference in the outcome of acute Achilles tendon rupture treated nonoperatively or operatively if controlled early motion is allowed as part of the rehabilitation program. STUDY DESIGN Randomized, controlled clinical trial; Level of evidence, 1. METHODS Patients with acute rupture of the Achilles tendon were randomized to surgery or no surgery, with both groups receiving early motion controlled in a removable orthosis, progressing to full weightbearing at 8 weeks from treatment. Both groups were followed prospectively for 12 months with measurements of range of motion, calf circumference, and the Musculoskeletal Functional Assessment Instrument (MFAI) outcome score; any reruptures and any complications were noted. RESULTS Both groups were comparable for age and sex. There were no significant differences between the 2 groups in plantar flexion, dorsiflexion, calf circumference, or the MFAI scores measured at 2, 8, 12, 26, or 52 weeks. One patient in each group was noncompliant and required surgical rerepair of the tendon. There were no differences in complications and a similar low number of reruptures in both groups. CONCLUSION This study supports early motion as an acceptable form of rehabilitation in both surgically and nonsurgically treated patients with comparable functional results and a low rerupture rate. There appears to be no difference between the 2 groups, suggesting that controlled early motion is the important part of treatment of ruptured Achilles tendon.
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Affiliation(s)
- Bruce C Twaddle
- Department of Orthopaedics, Auckland City Hospital, Private Bag 92-024, Auckland 1, New Zealand.
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Metz R, Kerkhoffs GM, Verleisdonk EJM, van der Heijden GJ. Acute Achilles tendon rupture: minimally invasive surgery versus non operative treatment, with immediate full weight bearing. Design of a randomized controlled trial. BMC Musculoskelet Disord 2007; 8:108. [PMID: 17986319 PMCID: PMC2194676 DOI: 10.1186/1471-2474-8-108] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2006] [Accepted: 11/06/2007] [Indexed: 12/28/2022] Open
Abstract
Background We present the design of an open randomized multi-centre study on surgical versus conservative treatment of acute Achilles tendon ruptures. The study is designed to evaluate the effectiveness of conservative treatment in reducing complications when treating acute Achilles tendon rupture. Methods/Design At least 72 patients with acute Achilles tendon rupture will be randomized to minimally invasive surgical repair followed by functional rehabilitation using tape bandage or conservative treatment followed by functional rehabilitation with use of a functional bracing system. Both treatment arms use a 7 weeks post-rupture rehabilitation protocol. Four hospitals in the Netherlands will participate. Primary end-point will be reduction in complications other than re-rupture. Secondary end-point will be re-rupturing, time off work, sporting activity post rupture, functional outcome by Leppilahti score and patient satisfaction. Patient follow-up will be 12 month. Discussion By making this design study we wish to contribute to more profound research on AT rupture treatment and prevent publication bias for this open-labelled randomized trial. Trial registration ISRCTN50141196
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Affiliation(s)
- Roderik Metz
- Department of Surgery, University Medical Centre Utrecht, The Netherlands.
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77
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Ceccarelli F, Berti L, Giuriati L, Romagnoli M, Giannini S. Percutaneous and minimally invasive techniques of Achilles tendon repair. Clin Orthop Relat Res 2007; 458:188-93. [PMID: 17290155 DOI: 10.1097/blo.0b013e3180396f07] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Despite the controversy regarding the best treatment for an acute Achilles tendon rupture, percutaneous and minimally invasive techniques seem to offer good results in terms of low risks of rerupture and complications with satisfactory clinical and functional outcomes. A comparison between a percutaneous surgical technique and a minimally invasive one has not been reported in the literature. We consecutively evaluated 12 patients who had a modified Ma and Griffith percutaneous Achilles tendon repair and 12 patients who had a minimally invasive technique. The same semifunctional rehabilitation protocol was used after surgery in both groups. At a minimum followup of 24 months (mean, 33 months; range, 24-42 months), we observed no reruptures or major complications in either group. Both groups had similarly high values for the American Orthopaedic Foot and Ankle Society score. The two techniques allowed equivalent time for return to work and sports. In the group of patients treated with the modified Ma and Griffith suture only, the mean loss of calf circumference in the injured leg was greater, compared with the contralateral leg. The two groups were isokinetically similar. In this study, the percutaneous and minimally invasive techniques of repair of the Achilles tendon yielded essentially identical clinical and functional outcomes.
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78
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Kotnis R, David S, Handley R, Willett K, Ostlere S. Dynamic ultrasound as a selection tool for reducing achilles tendon reruptures. Am J Sports Med 2006; 34:1395-400. [PMID: 16801690 DOI: 10.1177/0363546506288678] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The optimal method of treatment for acute tendo-Achilles ruptures continues to be debated. HYPOTHESIS The reported lower rerupture rate for operatively treated patients is an effect of tendon end apposition during the healing process, and patients in whom apposition can be demonstrated using ultrasound will have a similar rate of rerupture if treated nonoperatively. STUDY DESIGN Cohort study; Level of evidence, 2. METHOD The authors reviewed all patients with an Achilles tendon rupture who were treated to a standard protocol during a 5-year period (2000-2005). Patients with a gap of 5 mm or more in equinus on ultrasound underwent surgery; those with a gap of less than 5 mm received nonoperative treatment. All patients were followed up to a minimum of 12 months. RESULTS After exclusions, 125 patients were included: 67 treated operatively and 58 nonoperatively. There were 2 reruptures in the nonoperative group and 1 with surgery. There was no significant difference between the groups for any complication. CONCLUSION Reduction of rerupture and surgery risks may be possible using dynamic ultrasound case selection. Further studies are needed to show whether functional results are the same with surgical and nonsurgical treatment when dynamic ultrasound criteria are used for case selection.
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Affiliation(s)
- Rohit Kotnis
- MBChB, Bsc, MRCS, Kadoorie Centre for Critical Care and Research, Level 3, John Radcliffe Hospital, Headington, Oxford, OX3 7LD UK.
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79
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Costa ML, MacMillan K, Halliday D, Chester R, Shepstone L, Robinson AHN, Donell ST. Randomised controlled trials of immediate weight-bearing mobilisation for rupture of the tendo Achillis. ACTA ACUST UNITED AC 2006; 88:69-77. [PMID: 16365124 DOI: 10.1302/0301-620x.88b1.16549] [Citation(s) in RCA: 155] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We performed two independent, randomised, controlled trials in order to assess the potential benefits of immediate weight-bearing mobilisation after rupture of the tendo Achillis. The first trial, on operatively-treated patients showed an improved functional outcome for patients mobilised fully weight-bearing after surgical repair. Two cases of re-rupture in the treatment group suggested that careful patient selection is required as patients need to follow a structured rehabilitation regimen. The second trial, on conservatively-treated patients, provided no evidence of a functional benefit from immediate weight-bearing mobilisation. However, the practical advantages of immediate weight-bearing did not predispose the patients to a higher complication rate. In particular, there was no evidence of tendon lengthening or a higher re-rupture rate. We would advocate immediate weight-bearing mobilisation for the rehabilitation of all patients with rupture of the tendo Achillis.
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Affiliation(s)
- M L Costa
- School of Medicine, The University of East Anglia, Norwich NR4 7TJ, Norfolk, UK.
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80
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Affiliation(s)
- Christopher P Chiodo
- Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA 02115, USA.
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81
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Besch S, Peyre M, Rodineau J, Dupre J. Traitement conservateur des ruptures du tendon d’Achille. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/s0762-915x(06)71371-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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82
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Yeung CK, Guo X, Ng YF. Pulsed ultrasound treatment accelerates the repair of Achilles tendon rupture in rats. J Orthop Res 2006; 24:193-201. [PMID: 16435348 DOI: 10.1002/jor.20020] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A rat tenotomy model was used to investigate the effect of combined conservative management and pulsed ultrasound (PUS) on the repair of tenotomized Achilles tendon. Hemitenotomy of right medial Achilles tendon was performed in 48 rats without suture, and patella tenotomy was performed to mimic immobilization and limb disuse of an injured limb. PUS and sham PUS were applied to the healing wound for the treatment group and control group for 5 min, 3 times per week for 2 or 4 weeks, respectively. Tensile tests showed that the ultimate tensile strength (UTS) and stiffness of the repaired tendon in the treatment group at 2 weeks reached 48.92+/-8.39% and 62.48+/-32.46% of the contralateral normal tendon strength, which were significantly higher than those of the control group (UTS, 30.36+/-15.46%; stiffness, 33.90+/-17.59; p<0.05). At 4 weeks, UTS increased to 77.09+/-15.31% and stiffness to 92.48+/-31.12% in the treatment group, significantly higher than those in the control group (UTS, 54.33+/-18.40%, p<0.01; stiffness, 65.02+/-25.48%, p<0.05). Light microscopy revealed more regular, denser, and better aligned collagen fibers in the healing scar of the PUS-treated healing tendons. The findings suggested that PUS were able to accelerate the healing of the ruptured tendons.
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Affiliation(s)
- Chi Keung Yeung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong
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83
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Ingvar J, Tägil M, Eneroth M. Nonoperative treatment of Achilles tendon rupture: 196 consecutive patients with a 7% re-rupture rate. Acta Orthop 2005; 76:597-601. [PMID: 16195079 DOI: 10.1080/17453670510041619] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The best treatment for acute Achilles tendon rupture is unknown. PATIENTS AND METHODS We assessed the outcome of nonoperative treatment in 196 consecutive individuals with an acute total Achilles tendon rupture who were followed until healing. The mean duration of treatment in cast or orthosis was 8 weeks. After 4 years, a questionnaire was sent to all patients who were still alive (182) to supplement and confirm the retrospective data. The questionnaire was completed by 176/182 patients (97%). RESULTS The re-rupture frequency was 7% (n = 14). 7 patients suffered other complications (7 deep venous thrombosis and 1 pulmonary embolism). At follow-up, 62% of the patients reported full recovery. INTERPRETATION The low re-rupture rate after nonoperative treatment challenges the claim in recent studies that acute rupture of the Achilles tendon should be operated.
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Affiliation(s)
- Jonas Ingvar
- Department of Orthopedics, Lund University Hospital, Sweden.
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84
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Abstract
Achilles tendon ruptures are common, and their incidence is increasing. The evidence for best management is controversial, and, in selected patients, conservative management and early mobilization achieves excellent results. Surgery is associated with an increased risk of superficial skin breakdown; however, modern techniques of percutaneous repair that are performed under local anesthesia and followed by early functional rehabilitation are becoming increasingly common, and should be considered when managing such patients.
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Affiliation(s)
- Tomas Movin
- Department of Orthopaedics, Huddinge Hospital, Karolinska Institute, S-14186 Stockholm, Sweden
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85
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van der Linden-van der Zwaag HMJ, Nelissen RGHH, Sintenie JB. Results of surgical versus non-surgical treatment of Achilles tendon rupture. INTERNATIONAL ORTHOPAEDICS 2004; 28:370-3. [PMID: 15241626 PMCID: PMC3456894 DOI: 10.1007/s00264-004-0575-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2004] [Accepted: 05/21/2004] [Indexed: 11/24/2022]
Abstract
Between 1990 and 2001, 292 patients with acute Achilles tendon rupture were admitted to our institution. Depending on the day of admission patients were allocated either to the Department of Trauma Surgery or to the Department of Orthopaedics. Two hundred and twelve patients (mean age 37+/-9.4 years) were treated with surgical suture followed by plaster for 6 weeks. Eighty patients were treated non-surgically with splinting for 12 weeks. For both groups mean follow-up was 6+/-3 years. There were 14 re-ruptures, ten after surgical repair and four after non-surgical treatment. In the surgical group there were seven major wound problems, 11 minor wound complications and six patients with complaints from the sural nerve. In the non-surgical group one patient suffered a pulmonary embolism after a re-rupture, 3 months after the initial rupture. There was no difference in mean ankle score and patient-satisfaction score between groups. Only 52% regained their original sports activity level, slightly better in the surgically treated group. With a non-significant difference in re-rupture rate but relatively more complications after surgical repair, non-surgical treatment is preferred. With a slightly better recovery of sports activity after surgical repair, this might be used as an argument for surgical treatment in young athletes.
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86
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Lynch RM. Achilles tendon rupture: surgical versus non-surgical treatment. ACTA ACUST UNITED AC 2004; 12:149-58. [PMID: 15234712 DOI: 10.1016/j.aaen.2003.11.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2003] [Accepted: 11/18/2003] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To ascertain the treatment method of choice for Achilles tendon rupture, which results in the most favourable functional outcome. METHODS A comprehensive literature search was performed to retrieve relevant English language articles comparing surgical with non-surgical treatment. RESULTS The literature search identified five prospective randomised controlled trials, three of which compare surgical with non-surgical treatment, one which compares functional early mobilisation with cast immobilisation after surgical repair and one which compares functional and cast immobilisation in non-surgical management of Achilles tendon rupture. CONCLUSION Surgical treatment of Achilles tendon rupture is associated with a significantly lower incidence of re-rupture and therefore is the treatment method of choice. Non-surgical treatment may be acceptable for patients who refuse surgery or who are unfit for surgery. Functional early mobilisation appears to be associated with an improved functional outcome and should be considered in preference to plaster cast immobilisation where appropriate.
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Affiliation(s)
- Richard M Lynch
- Accident and Emergency Department, Cavan General Hospital, Cavan, Ireland.
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87
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Khan RJK, Fick D, Brammar TJ, Crawford J, Parker MJ. Interventions for treating acute Achilles tendon ruptures. Cochrane Database Syst Rev 2004:CD003674. [PMID: 15266495 DOI: 10.1002/14651858.cd003674.pub2] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND There is lack of consensus on the best management of the acute Achilles tendon (TA) rupture. Treatment can be broadly classified into operative (open or percutaneous) and non-operative (cast immobilisation or functional bracing). Post-operative splintage can be with a rigid cast (above or below the knee) or a more mobile functional brace. OBJECTIVES To identify and summarise the evidence from randomised controlled trials of the effectiveness of different interventions in the treatment of acute Achilles tendon ruptures. SEARCH STRATEGY We searched multiple databases including the Cochrane Musculoskeletal Injuries Group specialised register (to September 2003), reference lists of articles and contacted trialists. Keywords included Achilles Tendon, Rupture, and Tendon Injuries. SELECTION CRITERIA All randomised and quasi-randomised trials comparing different treatment regimens for acute Achilles tendon ruptures. DATA COLLECTION AND ANALYSIS Three reviewers extracted data and independently assessed trial quality by use of a ten-item scale. MAIN RESULTS Fourteen trials involving 891 patients were included. Several of the studies had poor methodology and inadequate reporting of outcomes. Open operative treatment compared with non-operative treatment (4 trials, 356 patients) was associated with a lower risk of rerupture (relative risk (RR) 0.27, 95% confidence interval (CI) 0.11 to 0.64), but a higher risk of other complications including infection, adhesions and disturbed skin sensibility (RR 10.60, 95%CI 4.82 to 23.28). Percutaneous repair compared with open operative repair (2 studies, 94 patients) was associated with a shorter operation duration, and lower risk of infection (RR 10.52, 95% CI 1.37 to 80.52). These figures should be interpreted with caution because of the small numbers involved. Patients splinted with a functional brace rather than a cast post-operatively (5 studies, 273 patients) tended to have a shorter in-patient stay, less time off work and a quicker return to sporting activities. There was also a lower complication rate (excluding rerupture) in the functional brace group (RR 1.88 95%CI 1.27 to 2.76). Because of the small number of patients involved no definitive conclusions could be made regarding different operative techniques (1 study, 51 patients), different non-operative treatment regimes (2 studies, 90 patients), and different forms of post-operative cast immobilisation (1 study, 40 patients). REVIEWERS' CONCLUSIONS Open operative treatment of acute Achilles tendon ruptures significantly reduces the risk of rerupture compared to non-operative treatment, but produces a significantly higher risk of other complications, including wound infection. The latter may be reduced by performing surgery percutaneously. Post-operative splintage in a functional brace appears to reduce hospital stay, time off work and sports, and may lower the overall complication rate.
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Affiliation(s)
- R J K Khan
- Trauma and Orthopaedics, Perth Orthopaedic Institute, PO Box 1125, Nedlands, Perth, WA, Australia, 6011
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88
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Abstract
Certain similarities can clearly be appreciated between Achilles and patellar tendon ruptures. Both are strong tendons that transmit force bridging at least one joint of the lower limb. When healthy, both require massive forces to be disrupted, and both can be weakened through certain systemic disease processes, steroids, and fluoroquinones. Both allow for a variety of innovative management possibilities that ultimately lend themselves to individual surgical preference. We feel that, although surgical management plays an important role in restoring continuity in knee extension and in plantar flexion, functional outcome inevitably relies on patient motivation and a well-established physiotherapy regime. Sports physicians should be able to identify both conditions early in their presentation, but still hold a high index of suspicion for these problems in athletes who have an acute exacerbation of ongoing tendinopathy.
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Affiliation(s)
- Nicola Maffulli
- Department of Trauma and Orthopaedics, Keele University School of Medicine, Thornburrow Drive, Hartshill ST47QB, UK.
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89
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Costa ML, Shepstone L, Darrah C, Marshall T, Donell ST. Immediate full-weight-bearing mobilisation for repaired Achilles tendon ruptures: a pilot study. Injury 2003; 34:874-6. [PMID: 14580826 DOI: 10.1016/s0020-1383(02)00205-x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Recent experimental and clinical evidence suggests that early loading and mobilisation for Achilles tendon ruptures may improve functional outcomes. This paper presents the results of a pilot study designed to assess the safety of immediate weight-bearing mobilisation. Twenty-eight operatively repaired patients were randomised to either immediate loading in an orthosis or traditional serial plaster casting. An independent observer, blinded to treatment, assessed the results. Improved clinical, anthropometric, and functional outcomes were noted in the immediate loading group. Ultrasound assessment confirmed no deleterious effects upon the tenodesis. There was one re-rupture of the tendon at a minimum follow-up of 1 year.
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Affiliation(s)
- M L Costa
- UEA Musculo-Skeletal Research Group and Department of Orthopaedics, The Institute of Orthopaedics, The Norfolk and Norwich University Hospital, Colney Lane, Norwich NR4 7UY, UK.
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90
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Weber M, Niemann M, Lanz R, Müller T. Nonoperative treatment of acute rupture of the achilles tendon: results of a new protocol and comparison with operative treatment. Am J Sports Med 2003; 31:685-91. [PMID: 12975187 DOI: 10.1177/03635465030310050901] [Citation(s) in RCA: 111] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Excellent results are reported from both nonoperative and operative treatment of Achilles tendon rupture. PURPOSE To describe a new nonoperative treatment protocol for Achilles tendon ruptures and compare outcomes with operative treatment. STUDY DESIGN Retrospective cohort study. METHODS We treated 23 patients nonoperatively with an equinus ankle cast and boot and compared their outcome with that of a group of 24 patients previously treated operatively. Muscle strengthening and walking with full weightbearing were started as soon as tolerated in both groups. Follow-up examinations were performed for 18 nonoperatively treated patients after 23 months and for 15 operatively treated patients after 49 months. RESULTS Subsidence of pain, return to unaided walking, and return to work was faster in the nonoperatively treated group. Patient satisfaction, return to sports, and ultimate strength was the same for both groups. The complication rate was similar, except for reruptures: four early in the nonoperative group and one late in the operative group. Two types of reruptures occurred in the nonoperative group: 1). normally healing tendon subjected to new trauma, rerupturing in the healing zone, and achieving a good result with continued nonoperative treatment; and 2). tendon failing proximal to the initial rupture at the muscle-tendon junction, without trauma, requiring operative repair and augmentation. CONCLUSIONS Results of operative and nonoperative treatment were equivalent.
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Affiliation(s)
- Martin Weber
- Department of Orthopaedic Surgery, University of Bern, Inselspital, Bern, Switzerland
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91
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Kannus P, Parkkari J, Järvinen TLN, Järvinen TAH, Järvinen M. Basic science and clinical studies coincide: active treatment approach is needed after a sports injury. Scand J Med Sci Sports 2003; 13:150-4. [PMID: 12753486 DOI: 10.1034/j.1600-0838.2003.02225.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The basic response to injury at the tissue level is well known and consists of acute inflammatory phase, proliferative phase, and maturation and remodeling phase. Knowing these phases, the treatment and rehabilitation program of athletes' acute musculoskeletal injuries should use a short period of immobilization followed by controlled and progressive mobilization. Both experimental and clinical trials have given systematic and convincing evidence that this program is superior to immobilization - a good example where basic science and clinical studies do coincide - and therefore active approach is needed in the treatment of these injuries.
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Affiliation(s)
- P Kannus
- Accident and Trauma Research Center and Research Center of Sports Medicine, UKK Institute, Tampere, Finland
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92
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Forslund C. BMP treatment for improving tendon repair. Studies on rat and rabbit Achilles tendons. ACTA ORTHOPAEDICA SCANDINAVICA. SUPPLEMENTUM 2003; 74:I, 1-30. [PMID: 12640969 DOI: 10.1080/000164702760300006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Carina Forslund
- Department of Orthopedics, Lund University Hospital, LUND, Sweden
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93
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Wong J, Barrass V, Maffulli N. Quantitative review of operative and nonoperative management of achilles tendon ruptures. Am J Sports Med 2002; 30:565-75. [PMID: 12130412 DOI: 10.1177/03635465020300041701] [Citation(s) in RCA: 192] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND There is no consensus on the best method for management of acute Achilles tendon ruptures. Individual preferences, drawn from experience and study, determine whether treatment is operative or nonoperative. PURPOSE Our goal was to review the literature to try to determine what management method was the most popular and effective. We wanted to ascertain the best results in terms of complication rates and patient outcomes. STUDY DESIGN Retrospective review of retrospectively and prospectively collected data. METHODS We analyzed 125 articles in peer-reviewed journals for year of publication, patient numbers, sex, management method, follow-up complications, and patient satisfaction. Each article was graded using a validated methods score. Methods, patient satisfaction, and complication rates were correlated with the year each article was published. RESULTS Skin-healing complications were lowest in conservatively managed patients (3 of 578, 0.5%) and highest in open repair and immobilized patients (543 of 3718, 14.6%). General complication rates were lowest in open repair and early-mobilization groups (16 of 238, 6.7%) and highest in percutaneous and early-mobilization groups (19 of 122, 15.6%). Rerupture rates were highest in immobilized conservative management groups (62 of 578, 10.7%) and lowest in groups with external fixation (0%). CONCLUSIONS In general, the number of publications reporting Achilles tendon ruptures is increasing, the quality of articles is increasing, and the trend for the number of reported complications is decreasing. The published articles had a low methods score (mean, 50.9; range, 25 to 77) and showed a trend toward earlier mobilization. Open repair and early mobilization give the best functional recovery and an acceptable complication rate.
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Affiliation(s)
- Jason Wong
- Department of Orthopaedic Surgery, University of Aberdeen Medical School, Aberdeen, Scotland
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94
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Abstract
Non-operative treatment of closed ruptures of the Achilles tendon within 48 h of injury has been shown to produce results comparable with surgical treatment [1,2]. We report 49 patients treated using a dynamised cast, with a mean follow-up of 42 months, in which there has been only one case of re-rupture. A total of 33 patients were reviewed clinically and measurements revealed a mean calf circumference deficit of 1 cm and a mean functional range of ankle motion deficit of 3 degrees and plantar-flexion strength of 81-90%, when compared with the contra-lateral uninjured limb. Early mobilisation of the injured Achilles tendon using a dynamised cast has produced a re-rupture rate and functional recovery that compare favourably with previously published results for patients treated operatively. Non-operative management, in this way, is well tolerated by patients and is of low cost.
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Affiliation(s)
- C P Roberts
- Addenbrooke's Hospital, Box 37, Clinic 1, Hills Road, CB2 2QQ, Cambridge, UK
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95
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Abstract
Experimental and clinical studies demonstrate that early, controlled mobilization is superior to immobilization for primary treatment of acute musculoskeletal soft-tissue injuries and postoperative management. Optimal treatment and rehabilitation follow four steps that address response to trauma. First is treating the damaged area with PRICES: protection, rest, ice, compression, elevation, and support. Second, during the first 1 to 3 weeks after the injury, immobilization of the injured tissue areas allows healing without extensive scarring. Third, when soft-tissue regeneration begins, controlled mobilization and stretching of muscle and tendons stimulate healing. Fourth, at 6 to 8 weeks postinjury, the rehabilitative goal is full return to preinjury level of activity.
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Affiliation(s)
- P Kannus
- Tampere Research Center of Sports Medicine, UKK Institute, Tampere, FIN-33501, FI.
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96
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Affiliation(s)
- N Maffulli
- Department of Orthopaedic Surgery, University of Aberdeen Medical School, Foresterhill, Scotland.
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97
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Murrell GA, Jang D, Deng XH, Hannafin JA, Warren RF. Effects of exercise on Achilles tendon healing in a rat model. Foot Ankle Int 1998; 19:598-603. [PMID: 9763165 DOI: 10.1177/107110079801900906] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The effects of motion, or lack of it, on Achilles tendon healing are not well defined. We have recently shown that immobilization has a detrimental effect on tendon healing in a rat model. The aim of this experiment was to determine whether enforced exercise had an additional beneficial effect on the mechanical and functional recovery of divided Achilles tendons in rats. Male Sprague-Dawley rats were randomly allocated into a nonexercise and an exercise group (N = 10 for each group). In both groups the right Achilles tendon was surgically transected. The left, uninjured lower limb served as an internal control. Both groups of animals were housed under identical conditions with the exception that the exercise group swam for 15 minutes per day. Functional performance was determined from the measurement of hindpaw prints of walking rats preoperatively and on alternate postoperative days. On day 15, the animals were killed and weighed, and biomechanical evaluations were performed on both the injured and uninjured Achilles tendon constructs. There were no differences in weight at time of death. All animals had an initial functional deficit that returned to near-normal by day 15. There were significant differences in the morphological and the mechanical properties of the healing Achilles tendon constructs at day 15 when comparing the injured with the uninjured Achilles tendon constructs. Supplemental exercise, however, had no effect on the functional or mechanical recovery of injured or uninjured Achilles tendons in the rat model.
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Affiliation(s)
- G A Murrell
- The Laboratory for Soft Tissue Research and Sports Medicine Service, The Hospital for Special Surgery, New York, New York, USA
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98
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Abstract
There are only a few epidemiological studies on the incidence of Achilles tendon (AT) ruptures. These show an increase in incidence in the West during the past few decades. The main reason is probably the increased popularity of recreational sports among middle-aged people. Ball games constitute the cause of over 60% of AT ruptures in many series. The 2 most frequently discussed pathophysiological theories involve chronic degeneration of the tendon and failure of the inhibitory mechanism of the musculotendinous unit. There are reports of AT ruptures related to the use of corticosteroids, either systemically or locally, but the role of corticosteroids in large patient series is marginal. In addition, recent studies do not confirm earlier findings of blood group O dominance in patients with AT rupture. Comparable series have been published with surgical versus nor surgical treatment and postoperative cast immobilisation versus early functional treatment. Although conservative treatment has its own supporters, surgical treatment seems to have been the method of choice in the late 1980s and the 1990s in athletes and young people and in cases of delayed ruptures. Early ruptures in non-athletes can also be treated conservatively. In small series of compliant, well motivated patients, functional postoperative treatment has been reported to be well tolerated, safe and effective. The lack of a universal, consistent protocol for subjective and objective evaluation of AT ruptures has prevented any direct comparison of the results. The results have been often assessed according to the criteria of Lindholm or Percy and Conochie, but no scoring is available for the analysis. We assessed a new scoring method and analysed the prognostic factors related to the results. There is also no single, uniformly accepted surgical technique. Although early ruptures have been treated successfully with simple end-to-end suture, many authors have combined simple tendon suture with plastic procedures of various types. No randomised study comparing simple suture technique and repair with augmentation could be found in the literature. The major complaint against surgical treatment has been the high rate of complications. Most are minor wound complications, which delay improvement but do not influence the final outcome. Major complications are rare, but often difficult to treat with minor procedures. For instance, large postoperative skin and soft tissue defects in the Achilles region can be treated successfully with a microvascular free flap reconstruction. The complications of conservative treatment include mostly reruptures and residual lengthening of the tendon, which may result in significant calf muscle weakness. It has been postulated that a physically inactive lifestyle leads to a decrease in tendon vascularisation, while maintenance of a continuous level of activity counteracts the structural changes within the musculotendinous unit induced by inactivity and aging. Proper warm-up and stretching are essential for preventing musculotendinous injuries, but improper or excessive stretching or warming-up can predispose to these injuries.
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Affiliation(s)
- J Leppilahti
- Department of Surgery, Oulu University Hospital, Finland
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99
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McComis GP, Nawoczenski DA, DeHaven KE. Functional bracing for rupture of the Achilles tendon. Clinical results and analysis of ground-reaction forces and temporal data. J Bone Joint Surg Am 1997; 79:1799-808. [PMID: 9409793 DOI: 10.2106/00004623-199712000-00005] [Citation(s) in RCA: 110] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Fifteen patients who had sustained a rupture of the Achilles tendon were managed non-operatively with use of a functional bracing protocol, and clinical and functional performance measures were assessed after a mean duration of follow-up of thirty-one months (range, twenty-four to forty-five months). An age and gender-matched group of fifteen subjects was assessed to provide normative data for the comparison of side-to-side differences. Numerical scores were generated on the basis of subjective responses to a questionnaire, clinical measurements of the range of motion of the ankle and the circumference of the calf, and the results of the Thompson squeeze test and a single-limb heel-rise test. A 100-point scoring system was used to categorize the outcome as excellent, good, fair, or poor. In addition, ground-reaction forces and temporal data were assessed during functional dynamic activities that included walking, a single-limb power hop, and a thirty-second single-limb heel-rise endurance test. The result was graded as excellent for three patients, good for nine, fair for two, and poor for one. An increase in passive dorsiflexion of the treated ankle was the only clinical measure that was significantly different between the groups (p = 0.02). This increase in dorsiflexion was positively correlated with vertical force output between the mid-stance and terminal-stance phases of gait (r = 0.40, p = 0.05). With the numbers available, we could detect no significant differences between the groups with regard to the kinetic or temporal variables that were measured during functional dynamic activities. Patients who generated less peak vertical force and vertical height during the single-limb power-hop test tended to have poorer clinical scores. We believe that non-operative functional bracing may prove to be a viable alternative to operative intervention or use of a plaster cast for the treatment of acute ruptures of the Achilles tendon. The goals of treatment are to prevent the musculoskeletal changes that are associated with immobilization, to reduce the time needed for rehabilitation, and to facilitate an early return to work and to preinjury activities.
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Affiliation(s)
- G P McComis
- University of Rochester Medical Center and Ithaca College Department of Physical Therapy, New York 14623, USA.
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100
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Murrell GA, Lilly EG, Goldner RD, Seaber AV, Best TM. Effects of immobilization on Achilles tendon healing in a rat model. J Orthop Res 1994; 12:582-91. [PMID: 8064487 DOI: 10.1002/jor.1100120415] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The aim of this study was to evaluate the effects of immobilization and mobilization on the functional and biomechanical recovery of injured Achilles tendons. Male Sprague-Dawley rats were allocated randomly into four groups: (a) sham operation, (b) division only (surgical transection of the Achilles tendon without immobilization), (c) "dummy" external fixation (division of the Achilles tendon and application of Kirschner wires), and (d) rigid external fixation (division of the Achilles tendon and immobilization with Kirschner wires connected by two triangular frames). All procedures were performed on the right lower limb; the left, uninjured, lower limb served as an internal control. Kirschner wires and external fixators were removed on day 12. Functional performance was determined from measurements of hind pawprints of rats walking preoperatively and on postoperative days 1, 3, 5, 7, 9, 11, 13, and 15. On day 15, the animals were killed and biomechanical evaluations were performed on both the injured and the uninjured Achilles tendon constructs. No functional or mechanical deficits were observed in the sham-operation group. Animals subjected to division of the Achilles tendon had an initial functional deficit that returned to near normal by day 15. The application of Kirschner wires was associated with an impairment of the functional performance of the rat as well as of the mechanical properties of the tendon-bone constructs. Immobilization by connection of the Kirschner wires to an external frame had an additional, highly significant (p < 0.001) detrimental effect on the functional and mechanical recovery of Achilles tendon-calcaneal complexes.
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Affiliation(s)
- G A Murrell
- Orthopaedic Research Laboratories, Duke University Medical Center, Durham, North Carolina
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