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Yetter TR, Halvorson RT, Wong SE, Harris JD, Allahabadi S. Management of Proximal Hamstring Injuries: Non-operative and Operative Treatment. Curr Rev Musculoskelet Med 2024; 17:373-385. [PMID: 39009901 PMCID: PMC11335994 DOI: 10.1007/s12178-024-09911-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/19/2024] [Indexed: 07/17/2024]
Abstract
PURPOSE OF REVIEW To evaluate the current evidence and literature on treatment options for proximal hamstring injuries. RECENT FINDINGS Patients with 3-tendon complete tears with greater than 2 cm of retraction have worse outcomes and higher complication rates compared to those with less severe injuries. Endoscopic and open proximal hamstring repair both have favorable patient reported outcomes at 5-year follow up. Proximal hamstring repair in patients who are male, with isolated semimembranosus injury, and have proximal hamstring free tendon rupture are more likely to have earlier return to sports. The Parisian Hamstring Avulsion Score (PHAS) is a validated patient-reported outcome measure to predict return to sports. Proximal hamstring injuries may occur in both elite and recreational athletes and may present with varying degrees of chronicity and severity. Injuries occur most commonly during forceful eccentric contraction of the hamstrings and often present with ischial tuberosity tenderness, ecchymosis, and hamstring weakness. Treatment decision-making is dictated by the tendons involved and chronicity. Many proximal hamstring injuries can be successfully treated with non-surgical measures. However, operative treatment of appropriately indicated proximal hamstring tendon injuries can result in significantly better functional outcomes and faster and more reliable return to sports compared to nonoperative treatment. Both endoscopic and open surgical repair techniques show high satisfaction levels and excellent patient-reported outcomes at short- and mid-term follow-up. Postoperative rehabilitation protocols vary across the literature and ongoing study is needed to clarify the optimal program, though emphasis on eccentric hamstring strengthening may be beneficial.
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Thompson JW, Plastow R, Kayani B, Moriarty P, Stirling B, Haddad FS. Operative Repair of Hamstring Injuries From the Jackling Position in Rugby. Orthop J Sports Med 2024; 12:23259671241246699. [PMID: 38840794 PMCID: PMC11151762 DOI: 10.1177/23259671241246699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 02/12/2024] [Indexed: 06/07/2024] Open
Abstract
Background The jackling position within rugby has not been previously described as a mechanism for proximal hamstring injuries. Hypothesis Acute surgical repair of proximal hamstring avulsion injuries sustained from the jackling contact position enables a return to a previous level of sporting activity with low risk of recurrence. Study Design Case series; Level of evidence, 4. Methods This study included 54 professional rugby players (mean age, 26 ± 4.8 years) who underwent acute primary surgical repair of complete, proximal hamstring avulsion injuries. The mean follow-up time was 17 months (range, 12-24 months). Mean isometric hamstring strength and function testing was performed at 3 months and 1 year after repair. Results Of the 54 players, 51 (94.4%) returned to their preinjury level of sporting activity. The mean time from surgical repair to full sporting activity was 7 months (range, 4-12 months). No patients had recurrence of the primary injury. At 1 year postoperatively, patients had significantly restored mean isometric hamstring muscle strength when compared with the uninjured leg at 0° (98.4% ± 2.8%), 15° (95.9% ± 2.9%), and 45° (92.9% ± 4.1%); improved Lower Extremity Functional Score (78.0 ± 2.0); and improved Marx activity rating score (14.3 ± 1.5) (P < .001 for all). Conclusion Acute surgical repair of proximal hamstring avulsion injuries caused by the contact jackling position produced a high return to preinjury level of sporting activity, increased muscle strength, and improved functional outcome scores, with a low risk of recurrence at short-term follow-up.
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Affiliation(s)
- Joshua W. Thompson
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom
- Department of Trauma and Orthopaedic Surgery, University College London Hospital Foundation NHS Trust, London, United Kingdom
| | - Ricci Plastow
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom
- Department of Trauma and Orthopaedic Surgery, University College London Hospital Foundation NHS Trust, London, United Kingdom
| | - Babar Kayani
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom
- Department of Trauma and Orthopaedic Surgery, University College London Hospital Foundation NHS Trust, London, United Kingdom
| | - Peter Moriarty
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom
- Department of Trauma and Orthopaedic Surgery, University College London Hospital Foundation NHS Trust, London, United Kingdom
| | | | - Fares S. Haddad
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom
- Department of Trauma and Orthopaedic Surgery, University College London Hospital Foundation NHS Trust, London, United Kingdom
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Lefèvre N, Freiha K, Moussa MK, Valentin E, Bohu Y, Meyer A, Hardy A. Risk Factors for Rerupture After Proximal Hamstring Avulsion Injury Including the Optimal Timing for Surgery. Am J Sports Med 2024; 52:1173-1182. [PMID: 38482843 PMCID: PMC10986149 DOI: 10.1177/03635465241233734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 12/14/2023] [Indexed: 04/04/2024]
Abstract
BACKGROUND Despite the prevalence of proximal hamstring avulsion injuries (PHAIs), the understanding of rerupture risk factors and the influence of injury chronicity on these rates remain limited. PURPOSE To investigate the rerupture rate after PHAI repair and identify its associated risk factors and the optimal time to primary surgery. STUDY DESIGN Case-control study; Level of evidence, 3. METHOD This is a retrospective analysis of prospectively collected data from the French Proximal Hamstring Avulsion Surgery Cohort Study targeting patients surgically treated for PHAI between 2002 and 2022. The primary outcome measure of this study was the rerupture rate of PHAI repair. The secondary outcome measures included the assessment of the potential risk factors for rerupture as well as the investigation of the incidence rate of rerupture for 100 person-years depending on various injury-surgery delay definitions. RESULTS This study analyzed 740 patients with a mean age of 45.9 years (SD, 13.6 years) and followed up for a mean of 4.9 years (SD, 3.9 years). The rerupture rate was 4.59% (34/740). Most reruptures (75%) occurred within the first 6 months after surgery (median, 88.5 days; interquartile range, 39.5-182 days), and 74% were atraumatic. Univariate analysis identified potential risk factors: longer initial surgery delay (hazard ratio [HR], 1.03; 95% CI, 1.01-1.04; P = .04) and initial complete ruptures (HR, 4.47; 95% CI, 1.07-18.7; P = .04). Receiver operating characteristic curve analysis found the optimal injury-surgery delay cutoff predicting rerupture to be 32 days (area under the curve, 0.62; 95% CI, 0.53-0.71). The relative Youden index was calculated at 0.24, corresponding to a sensitivity of 65% and a specificity of 59%. Surpassing this cutoff showed the highest HR (2.56), narrowest 95% CI (1.27-5.17), and highest incidence of rerupture (1.42 per 100 person-years) (P = .01). In the multivariate analysis, an injury-surgery delay of >32 days (HR, 2.5; 95% CI, 1.24-5.06; P = .01) and initial complete ruptures (HR, 4.33; 95% CI, 1.04-18.08; P = .04) emerged as significant risk factors for rerupture. CONCLUSION This study found a 4.59% rerupture risk after PHAI repair. Most reruptures (75%) occurred within the first 6 months after surgery. Risk factors for rerupture included chronicity and initial complete injury. The optimal threshold for chronicity of PHAI lesions, based on rerupture rate, was marked by an injury-surgery delay of >32 days.
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Allahabadi S, Salazar LM, Obioha OA, Fenn TW, Chahla J, Nho SJ. Hamstring Injuries: A Current Concepts Review: Evaluation, Nonoperative Treatment, and Surgical Decision Making. Am J Sports Med 2024; 52:832-844. [PMID: 37092718 DOI: 10.1177/03635465231164931] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
The purpose of this current concepts review is to highlight the evaluation and workup of hamstring injuries, nonoperative treatment options, and surgical decision-making based on patient presentation and injury patterns. Hamstring injuries, which are becoming increasingly recognized, affect professional and recreational athletes alike, commonly occurring after forceful eccentric contraction mechanisms. Injuries occur in the proximal tendon at the ischial tuberosity, in the muscle belly substance, or in the distal tendon insertion on the tibia or fibula. Patients may present with ecchymoses, pain, and weakness. Magnetic resonance imaging remains the gold standard for diagnosis and may help guide treatment. Treatment is dictated by the specific tendon(s) injured, tear location, severity, and chronicity. Many hamstring injuries can be successfully managed with nonoperative measures such as activity modification and physical therapy; adjuncts such as platelet-rich plasma injections are currently being investigated. Operative treatment of proximal hamstring injuries, including endoscopic or open approaches, is traditionally reserved for 2-tendon injuries with >2 cm of retraction, 3-tendon injuries, or injuries that do not improve with 6 months of nonoperative management. Acute surgical treatment of proximal hamstring injuries tends to be favorable. Distal hamstring injuries may initially be managed nonoperatively, although biceps femoris injuries are frequently managed surgically, and return to sport may be faster for semitendinosus injuries treated acutely with excision or tendon stripping in high-level athletes.
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Affiliation(s)
- Sachin Allahabadi
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
| | - Luis M Salazar
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
| | - Obianuju A Obioha
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
| | - Thomas W Fenn
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
| | - Jorge Chahla
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
| | - Shane J Nho
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
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Fenn TW, Brusalis CM, Allahabadi S, Alvero AB, Ebersole JW, Nho SJ. Association Between Proximal Hamstring Tear Characteristics and Achievement of Clinically Significant Outcomes After Endoscopic and Open Repair at Minimum 2-Year Follow-up. Am J Sports Med 2024; 52:390-400. [PMID: 38179612 DOI: 10.1177/03635465231216118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
BACKGROUND The effect of preoperative tear characteristics and the relative efficacy of open versus endoscopic surgical techniques have not been elucidated for the surgical treatment of proximal hamstring tendon injuries. PURPOSE (1) To report on achievement rates of clinically significant outcomes at a minimum 2-year follow-up for multiple patient-reported outcomes (PROs) after surgical treatment of proximal hamstring injuries, stratified according to severity of proximal hamstring injury, and (2) to compare clinical outcomes associated with endoscopic versus open surgical repair for a subset of similarly classified tears. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A single-surgeon clinical registry was queried for patients who underwent surgical repair for proximal hamstring ruptures between January 2012 and March 2021. Injuries were classified by magnetic resonance imaging as follows: grade 1, incomplete tear with the involvement of 1 or 2 tendons; grade 2, complete tear with the involvement of 3 tendons and ≤2-cm retraction; and grade 3, complete tear with the involvement of 3 tendons and >2-cm retraction. The Patient Acceptable Symptom State (PASS) for multiple PROs was calculated and compared among injury grades and between surgical techniques. RESULTS Among 75 patients with a mean follow-up of 30.5 ± 5.1 months, 20 had grade 1 tears, 24 had grade 2 tears, and 31 had grade 3 tears. Favorable 2-year postoperative PROs were demonstrated by each grade for all measured PROs. Patients with grade 3 tears were noted to have significantly lower rates of 2-year PASS achievement for the Hip Outcome Score-Activities of Daily Living (HOS-ADL) and Hip Outcome Score-Sports Specific (HOS-SS) scales (P≤ .032). Among grade 2 tears, patients treated endoscopically demonstrated significantly greater HOS-SS (endoscopic, 91.7%; open, 58.3%; P = .045) and Patient-Reported Outcomes Measurement Information System for Physical Function (endoscopic, 80.0%; open, 50.0%; P = .033) PASS achievement rates compared with those treated with the open technique. Complication rates were highest in patients with grade 3 tears (45.2%, P = .043). CONCLUSION Surgical repair of proximal hamstring tendon tears with varying extents of tendon retraction resulted in high rates of achieving PASS at the 2-year follow-up. Among complete tears with <2 cm of retraction, endoscopic repairs exhibited equal or higher rates of achieving PASS compared with open repairs across multiple PROs at 2 years postoperatively. However, patients with complete tears and retraction >2 cm achieved lower rates of PASS on the HOS-ADL and HOS-SS scales and had a higher rate of complications.
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Affiliation(s)
- Thomas W Fenn
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
| | - Christopher M Brusalis
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
- Department of Orthopedic Surgery, Division of Sports Medicine, Hospital for Special Surgery, New York, New York, USA
| | - Sachin Allahabadi
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
- Department of Orthopaedic Surgery, Division of Sports Medicine, Houston Methodist, Houston, Texas, USA
| | - Alexander B Alvero
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
| | - John W Ebersole
- Department of Musculoskeletal Radiology, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
| | - Shane J Nho
- Section of Young Adult Hip Surgery, Division of Sports Medicine, Department of Orthopaedic Surgery, Rush Medical College of Rush University, Rush University Medical Center, Chicago, Illinois, USA
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Lawson JJ, Abraham EA, Imbergamo CM, Sequeira SB, Dreese JC, Gould HP. Systematic Review of Complications Associated With Proximal Hamstring Tendon Repair. Orthop J Sports Med 2023; 11:23259671231199092. [PMID: 37781641 PMCID: PMC10536870 DOI: 10.1177/23259671231199092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 05/19/2023] [Indexed: 10/03/2023] Open
Abstract
Background Although several complications of proximal hamstring tendon ruptures have been reported in the literature, few studies have comprehensively analyzed the complication profile of proximal hamstring tendon repair. Purpose To identify the overall rate of complications following proximal hamstring tendon repair and to differentiate these complications into categories. Study Design Systematic review; Level of evidence, 4. Methods Included in this review were studies that examined surgical repair of proximal hamstring tendon ruptures; all studies were in English and had an evidence level of 4 or higher. No restrictions were made regarding publication date or methodological quality. Data regarding complications were extracted to calculate the overall complication rate as well as the rate of major and minor complications. A quantitative data synthesis was conducted using the chi-square test to compare the proportion of patients who experienced complications with the endoscopic versus open approach. Results A total of 43 articles including 2833 proximal hamstring tendon repairs were identified. The overall postoperative complication rate was 15.3% (n = 433). The rate of major complications was 4.6%, including a 1.7% rate of sciatic nerve injury, 0.8% rate of venous thromboembolism, 0.8% reoperation rate, 0.8% rerupture rate, and 0.4% rate of deep infection. Minor complications included a 2.4% rate of posterior femoral cutaneous nerve injury, 2.3% rate of persistent hamstring myopathy, 2.2% rate of persistent sitting pain, 1.8% rate of peri-incisional numbness, 1.1% rate of superficial infection, and 0.8% rate of hematoma/seroma. Conclusion Proximal hamstring tendon repair is associated with an overall complication rate of 15.3%, including a 4.6% rate of major complications.
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Affiliation(s)
- Jonathan J. Lawson
- MedStar Orthopaedic Institute, Union Memorial Hospital, Baltimore, Maryland, USA
| | - Eliza A. Abraham
- MedStar Orthopaedic Institute, Union Memorial Hospital, Baltimore, Maryland, USA
| | - Casey M. Imbergamo
- MedStar Orthopaedic Institute, Union Memorial Hospital, Baltimore, Maryland, USA
| | - Sean B. Sequeira
- MedStar Orthopaedic Institute, Union Memorial Hospital, Baltimore, Maryland, USA
| | - James C. Dreese
- MedStar Orthopaedic Institute, Union Memorial Hospital, Baltimore, Maryland, USA
| | - Heath P. Gould
- MedStar Orthopaedic Institute, Union Memorial Hospital, Baltimore, Maryland, USA
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Gattringer M, Schalamon G, Pichler H, Breulmann FL, Buerger H, Mattiassich G, Bischofreiter M. Sciatic Nerve Compression after a Chronic Proximal Hamstring Tear: A Report of Two Cases and a Narrative Review of the Literature. Life (Basel) 2023; 13:1762. [PMID: 37629619 PMCID: PMC10455575 DOI: 10.3390/life13081762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 08/11/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Proximal hamstring tears are among the most common injuries afflicting athletes and middle-aged individuals. Sciatic nerve compression after a proximal hamstring injury, which can occur due to scar formation and subsequent irritation or compression of the nerve, is an infrequent but severe complication with few cases documented in the literature. No evidence is available about the optimal treatment for sciatic nerve symptoms after proximal hamstring injuries. In this case report, we present two cases involving patients primarily treated conservatively at another institution after suffering from a proximal hamstring injury and developing sciatic nerve symptoms over the course of a few months. Both were treated with open neurolysis at our institution without reattachment of the ruptured muscles to the ischial tuberosity due to the chronicity of the injuries. Both patients exhibited neurological symptoms over two years, which recovered after surgery. These two cases show that neurolysis of the sciatic nerve without reattachment of the proximal hamstring muscles is an applicable option for the treatment of chronic proximal hamstring tears with sciatic nerve compression. Further studies will be needed to validate this hypothesis.
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Affiliation(s)
- Michael Gattringer
- Department of Orthopedic and Trauma Surgery, Clinic Diakonissen Schladming, 8970 Schladming, Austria
- Department of Orthopedic Surgery, Ordensklinikum Barmherzige Schwestern Linz, Vinzenzgruppe Center of Orthopedic Excellence, Teaching Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Georg Schalamon
- Department of Orthopedic and Trauma Surgery, Clinic Diakonissen Schladming, 8970 Schladming, Austria
| | - Hannes Pichler
- Department of Orthopedic Surgery, Ordensklinikum Barmherzige Schwestern Linz, Vinzenzgruppe Center of Orthopedic Excellence, Teaching Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
| | - Franziska Lioba Breulmann
- Department of Orthopedic Sports Medicine, Klinikum Rechts der Isar, Technical University of Munich, 81675 Munich, Germany
| | - Heinz Buerger
- Department of Orthopedic and Trauma Surgery, Clinic Diakonissen Schladming, 8970 Schladming, Austria
| | - Georg Mattiassich
- Department of Orthopedic and Trauma Surgery, Clinic Diakonissen Schladming, 8970 Schladming, Austria
| | - Martin Bischofreiter
- Department of Orthopedic and Trauma Surgery, Clinic Diakonissen Schladming, 8970 Schladming, Austria
- Department of Orthopedic Surgery, Ordensklinikum Barmherzige Schwestern Linz, Vinzenzgruppe Center of Orthopedic Excellence, Teaching Hospital of the Paracelsus Medical University Salzburg, 5020 Salzburg, Austria
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8
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Laszlo S, Jonsson KB. Increasing incidence of surgically treated hamstring injuries: a nationwide registry study in Sweden between 2001 and 2020. Acta Orthop 2023; 94:336-341. [PMID: 37417907 PMCID: PMC10327580 DOI: 10.2340/17453674.2023.13650] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 05/21/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND AND PURPOSE Data on incidence and on trends in treatment of hamstring injuries, including proximal hamstring tendon avulsions (PHA), is limited. We aimed to investigate the incidence, trends in operative treatment, age, and sex distribution of hamstring injuries in Sweden between 2001 and 2020. PATIENTS AND METHODS We obtained data recorded in the National Patient Register between 2001 and 2020 on patients between 18 and 90 years of age, with the ICD-10 code S76.3, to calculate the incidence of patients treated operatively for hamstring injuries in Sweden. Patients with the NOMESCO classification NFL49 were considered as having been treated operatively. Data on quadriceps and Achilles tendon injuries were obtained for comparison. To calculate incidences, adult population data for every year were obtained from the Statistics Sweden website. RESULTS The incidence of patients diagnosed with hamstring injuries increased from 2.2 to 7.3 per 100,000 person-years. There was a rising trend of surgical treatment per diagnosed case from 3.0% to 14.2%. Patients diagnosed in units with the highest experience of surgical treatment of hamstring injuries tended to be operated on more often (22.2%) than patients diagnosed in units with limited experience (5.1%), although the fraction of operated patients was increasing in both groups. CONCLUSION Between 2001 and 2020 there was an increase in the proportion of operatively treated hamstring injuries.
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Affiliation(s)
- Sofia Laszlo
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden.
| | - Kenneth B Jonsson
- Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
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9
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Plastow R, Kerkhoffs GMMJ, Wood D, Paton BM, Kayani B, Pollock N, Court N, Giakoumis M, Head P, Kelly S, Moore J, Moriarty P, Murphy S, Read P, Stirling B, Tulloch L, van Dyk N, Wilson M, Haddad F. London International Consensus and Delphi study on hamstring injuries part 2: operative management. Br J Sports Med 2023; 57:266-277. [PMID: 36650033 DOI: 10.1136/bjsports-2021-105383] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2022] [Indexed: 01/19/2023]
Abstract
The key indications for surgical repair of hamstring injuries (HSIs) remain unclear in the literature due to a lack of high-level evidence and expert knowledge. The 2020 London International Hamstring Consensus meeting aimed to highlight clear surgical indications and to create a foundation for future research. A literature review was conducted followed by a modified Delphi process, with an international expert panel. Purposive sampling was used with two rounds of online questionnaires and an intermediate round involving a consensus meeting. The initial information gathering (round 1) questionnaire was sent to 46 international experts, which comprised open-ended questions covering decision-making domains in HSI. Thematic analysis of responses outlined key domains, which were evaluated by a smaller international subgroup (n=15) comprising clinical academic sports medicine physicians, physiotherapists and orthopaedic surgeons in a consensus meeting. After group discussion of each domain, a series of consensus statements were prepared, debated and refined. A round 2 questionnaire was sent to 112 international hamstring experts to vote on these statements and determine level of agreement. The consensus threshold was set a priori at 70% agreement. Rounds 1 and 2 survey respondents were 35/46 (76%) and 99/112 (88.4%), respectively. The consensus group agreed that the indications for operative intervention included: gapping at the zone of tendinous injury (87.2% agreement) and loss of tension (70.7%); symptomatic displaced bony avulsions (72.8%); and proximal free tendon injuries with functional compromise refractory to non-operative treatment (72.2%). Other important considerations for operative intervention included: the demands of the athlete/patient and the expected functional outcome (87.1%) based on the anatomy of the injury; the risk of functional loss/performance deficit with non-operative management (72.2%); and the capacity to restore anatomy and function (87.1%). Further research is needed to determine whether surgery can reduce the risk of reinjury as consensus was not reached within the whole group (48.2%) but was agreed by surgeons (70%) in the cohort. The consensus group did not support the use of corticosteroids or endoscopic surgery without further evidence. These guidelines will help standardise treatment of HSIs, specifically the indications and decision-making for surgical intervention.
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Affiliation(s)
- Ricci Plastow
- Trauma & Orthopaedic Surgery, University College London Hospitals NHS Foundation Trust, London, UK
| | - Gino M M J Kerkhoffs
- Department of Orthopedic Surgery and Sports Medicin, Amsterdam Movement Sciences, Amsterdam University Medical Centers, Amsterdam, The Netherlands.,Amsterdam Collaboration for Health and Safety in Sports (ACHSS), Amsterdam IOC Research Center, Amsterdam, The Netherlands
| | - David Wood
- Trauma & Orthopaedic Surgery, North Sydney Orthopaedic and Sports Medicine Centre, Sydney, New South Wales, Australia
| | - Bruce M Paton
- Division of Medicine, Institute of Sport Exercise Health, University College London, London, UK.,Physiotherapy, University College London Hospitals NHS Foundation Trust, London, UK
| | - Babar Kayani
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Noel Pollock
- British Athletics Medical Team, London, UK.,Sports Medicine, Institute of Sport Exercise and Health, London, UK
| | | | | | - Paul Head
- School of Sport, Health and Applied Science, St. Mary's University, London, UK
| | - Sam Kelly
- Salford City Football Club, Salford, UK.,Blackburn Rovers FC, Blackburn, Lancashire, UK
| | - James Moore
- Sports & Exercise Medicine, Centre for Human Health and Performance, London, UK
| | - Peter Moriarty
- Division of Surgery and Interventional Science, University College London, London, UK
| | - Simon Murphy
- Sports Medicine, Arsenal Football Club, London, UK
| | - Paul Read
- Institute of Sport Exercise & Health, London, UK.,Princess Grace Hospital, London, London, UK
| | | | | | - Nicol van Dyk
- High Performance Unit, Irish Rugby Football Union, Dublin, Ireland.,Section Sports Medicine, University of Pretoria, Pretoria, South Africa
| | - Mathew Wilson
- Princess Grace Hospital, London, London, UK.,Targeted Intervention, University College London, London, UK
| | - Fares Haddad
- Trauma & Orthopaedic Surgery, University College London Hospitals NHS Foundation Trust, London, UK.,Institute of Sport Exercise & Health, London, UK
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10
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Jokela A, Stenroos A, Kosola J, Valle X, Lempainen L. A systematic review of surgical intervention in the treatment of hamstring tendon ruptures: current evidence on the impact on patient outcomes. Ann Med 2022; 54:978-988. [PMID: 35416097 PMCID: PMC9009934 DOI: 10.1080/07853890.2022.2059560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Hamstring injuries are among the most common muscle injuries. They have been reported in many different sports, such as running, soccer, track and field, rugby, and waterskiing. However, they are also present among the general population. Most hamstring injuries are mild strains, but also moderate and severe injuries occur. Hamstring injuries usually occur in rapid movements involving eccentric demands of the posterior thigh. Sprinting has been found to mainly affect the isolated proximal biceps femoris, whereas stretching-type injuries most often involve an isolated proximal injury of the semimembranosus muscle. The main cause of severe 2- or 3-tendon avulsion is a rapid forceful hip flexion with the ipsilateral knee extended. Most hamstring injuries are treated non-surgically with good results. However, there are also clear indications for surgical treatment, such as severe 2- or 3-tendon avulsions. In athletes, more aggressive recommendations concerning surgical treatment can be found. For a professional athlete, a proximal isolated tendon avulsion with clear retraction should be treated operatively regardless of the injured tendon. Surgical treatment has been found to have good results in severe injuries, especially if the avulsion injury is repaired in acute phase. In chronic hamstring injuries and recurring ruptures, the anatomical apposition of the retracted muscles is more difficult to be achieved. This review article analyses the outcomes of surgical treatment of hamstring ruptures. The present study confirms the previous knowledge that surgical treatment of hamstring tendon injuries causes good results with high satisfaction rates, both in complete and partial avulsions. Early surgical repair leads to better functional results with lower complication rates, especially in complete avulsions.KEY MESSAGEsSurgical treatment of hamstring tendon ruptures leads to high satisfaction and return to sport rates.Both complete and partial hamstring tendon ruptures have better results after acute surgical repair, when compared to cases treated surgically later.Athletes with hamstring tendon ruptures should be treated more aggressively with operative methods.
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Affiliation(s)
- Aleksi Jokela
- Faculty of Medicine, University of Turku, Turku, Finland
| | - Antti Stenroos
- Department of Orthopedics and Traumatology, Helsinki University Central Hospital, Helsinki, Finland
| | - Jussi Kosola
- Department of Surgery, Kanta-Häme Central Hospital, Hämeenlinna, Finland
| | - Xavier Valle
- Medical Department, FC Barcelona, Barcelona, Spain
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11
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Hillier-Smith R, Paton B. Outcomes following surgical management of proximal hamstring tendon avulsions. Bone Jt Open 2022; 3:415-422. [PMID: 35549447 PMCID: PMC9134830 DOI: 10.1302/2633-1462.35.bjo-2021-0196.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Aims Avulsion of the proximal hamstring tendon origin can result in significant functional impairment, with surgical re-attachment of the tendons becoming an increasingly recognized treatment. The aim of this study was to assess the outcomes of surgical management of proximal hamstring tendon avulsions, and to compare the results between acute and chronic repairs, as well as between partial and complete injuries. Methods PubMed, CINAHL, SPORTdiscuss, Cochrane Library, EMBASE, and Web of Science were searched. Studies were screened and quality assessed. Results In all, 35 studies (1,530 surgically-repaired hamstrings) were included. Mean age at time of repair was 44.7 years (12 to 78). A total of 846 tears were acute, and 684 were chronic, with 520 tears being defined as partial, and 916 as complete. Overall, 92.6% of patients were satisfied with the outcome of their surgery. Mean Lower Extremity Functional Score was 74.7, and was significantly higher in the partial injury group. Mean postoperative hamstring strength was 87.0% of the uninjured limb, and was higher in the partial group. The return to sport (RTS) rate was 84.5%, averaging at a return of 6.5 months. RTS was quicker in the acute group. Re-rupture rate was 1.2% overall, and was lower in the acute group. Sciatic nerve dysfunction rate was 3.5% overall, and lower in the acute group (p < 0.05 in all cases). Conclusion Surgical treatment results in high satisfaction rates, with good functional outcomes, restoration of muscle strength, and RTS. Partial injuries could expect a higher functional outcome and muscle strength return. Acute repairs result in a quicker RTS with a reduced rate of re-rupture and sciatic nerve dysfunction. Cite this article: Bone Jt Open 2022;3(5):415–422.
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Affiliation(s)
| | - Bruce Paton
- Institute of Sport Exercise and Health, University Colleage London, University College London Hospitals NHS Foundation Trust, London, UK
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12
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Rudisill SS, Kucharik MP, Varady NH, Martin SD. Evidence-Based Management and Factors Associated With Return to Play After Acute Hamstring Injury in Athletes: A Systematic Review. Orthop J Sports Med 2021; 9:23259671211053833. [PMID: 34888392 PMCID: PMC8649106 DOI: 10.1177/23259671211053833] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/10/2021] [Indexed: 01/14/2023] Open
Abstract
Background: Considering the lengthy recovery and high recurrence risk after a hamstring injury, effective rehabilitation and accurate prognosis are fundamental to timely and safe return to play (RTP) for athletes. Purpose: To analyze methods of rehabilitation for acute proximal and muscular hamstring injuries and summarize prognostic factors associated with RTP. Study Design: Systematic review; Level of evidence, 4. Methods: In August 2020, MEDLINE, CINAHL, Cochrane Central Register of Controlled Trials, and SPORTDiscus were queried for studies examining management and factors affecting RTP after acute hamstring injury. Included were randomized controlled trials, cohort studies, case-control studies, and case series appraising treatment effects on RTP, reinjury rate, strength, flexibility, hamstrings-to-quadriceps ratio, or functional assessment, as well as studies associating clinical and magnetic resonance imaging factors with RTP. Risk of bias was assessed using the Cochrane Risk-of-Bias Tool for Randomized Trials or the Methodological Index for Non-Randomized Studies (MINORS). Results: Of 1289 identified articles, 75 were included. The comparative and noncomparative studies earned MINORS scores of 18.8 ± 1.3 and 11.4 ± 3.4, respectively, and 12 of the 17 randomized controlled trials exhibited low risk of bias. Collectively, studies of muscular injury included younger patients and a greater proportion of male athletes compared with studies of proximal injury. Surgery for proximal hamstring ruptures achieved superior outcomes to nonoperative treatment, whereas physiotherapy incorporating eccentric training, progressive agility, and trunk stabilization restored function and hastened RTP after muscular injuries. Platelet-rich plasma injection for muscular injury yielded inconsistent results. The following initial clinical findings were associated with delayed RTP: greater passive knee extension of the uninjured leg, greater knee extension peak torque angle, biceps femoris injury, greater pain at injury and initial examination, “popping” sound, bruising, and pain on resisted knee flexion. Imaging factors associated with delayed RTP included magnetic resonance imaging-positive injury, longer lesion relative to patient height, greater muscle/tendon involvement, complete central tendon or myotendinous junction rupture, and greater number of muscles injured. Conclusion: Surgery enabled earlier RTP and improved strength and flexibility for proximal hamstring injuries, while muscular injuries were effectively managed nonoperatively. Rehabilitation and athlete expectations may be managed by considering several suitable prognostic factors derived from initial clinical and imaging examination.
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Affiliation(s)
- Samuel S Rudisill
- Sports Medicine Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Partners Health System, Boston, Massachusetts, USA.,Rush Medical College of Rush University, Chicago, Illinois, USA
| | - Michael P Kucharik
- Sports Medicine Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Partners Health System, Boston, Massachusetts, USA
| | - Nathan H Varady
- Sports Medicine Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Partners Health System, Boston, Massachusetts, USA.,Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, New York, USA
| | - Scott D Martin
- Sports Medicine Center, Department of Orthopaedic Surgery, Massachusetts General Hospital, Partners Health System, Boston, Massachusetts, USA
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13
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Lawton CD, Sullivan SW, Hancock KJ, Burger JA, Nawabi DH, Kelly BT, Ranawat AS, Nwachukwu BU. Achievement of the minimal clinically important difference following open proximal hamstring repair. J Hip Preserv Surg 2021; 8:348-353. [PMID: 35505799 PMCID: PMC9052411 DOI: 10.1093/jhps/hnab068] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/05/2021] [Accepted: 08/18/2021] [Indexed: 11/29/2022] Open
Abstract
There is a paucity of literature on patient-reported outcome measures (PROMs) following proximal hamstring repair beyond return to play, patient satisfaction and pain improvement. The minimal clinically important difference (MCID) defines the minimum degree of quantifiable improvement that a patient can perceive, but the MCID and predictors of this measure have not been defined for this patient population. This study aimed to define the MCID and determine the efficacy of open proximal hamstring repair through achievement of MCID and identify characteristics predictive of achieving MCID. A retrospective cohort review of an institutional hip registry was conducted, analyzing the modified Harris Hip Score (mHHS) and International Hip Outcome Tool (iHOT-33). MCID was calculated using a distribution-based method. Demographic and clinical variables predictive of achieving MCID were analyzed using univariable and multivariate logistic regression analyses. Thirty-nine patients who underwent open proximal hamstring repair were included. The mean patient age was 48.5 ± 12.4 years, with a mean follow-up of 37.1 ± 28 months. The MCID was determined for each PROM (mHHS—11.8; iHOT-33—12.6). A high percentage of patients achieved MCID for both PROMs (mHHS—85.7%; iHOT-33—91.4%). Univariate logistical regression demonstrated increased age (P = 0.163), increased body mass index (BMI; P = 0.072), requirement for inpatient admission (P = 0.088) and pre-operative iHOT-33 (P = 0.104) trended towards clinically significant predictors of not achieving MCID. A high percentage of patients achieved MCID while age, BMI, inpatient admission and pre-operative iHOT-33 appear to influence the achievement of clinically significant outcome in patients undergoing open proximal hamstring repair.
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Affiliation(s)
- Cort D Lawton
- Sports Medicine Institute, Hospital for Special Surgery, New York, NY 10021, USA
| | - Spencer W Sullivan
- Sports Medicine Institute, Hospital for Special Surgery, New York, NY 10021, USA
| | - Kyle J Hancock
- Sports Medicine Institute, Hospital for Special Surgery, New York, NY 10021, USA
| | - Joost A Burger
- Sports Medicine Institute, Hospital for Special Surgery, New York, NY 10021, USA
| | - Danyal H Nawabi
- Sports Medicine Institute, Hospital for Special Surgery, New York, NY 10021, USA
- Weill Cornell Medical College, New York, NY 10021, USA
| | - Bryan T Kelly
- Sports Medicine Institute, Hospital for Special Surgery, New York, NY 10021, USA
- Weill Cornell Medical College, New York, NY 10021, USA
| | - Anil S Ranawat
- Sports Medicine Institute, Hospital for Special Surgery, New York, NY 10021, USA
- Weill Cornell Medical College, New York, NY 10021, USA
| | - Benedict U Nwachukwu
- Sports Medicine Institute, Hospital for Special Surgery, New York, NY 10021, USA
- Weill Cornell Medical College, New York, NY 10021, USA
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14
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[Clinical results after refixation of proximal hamstring tendon ruptures comparing different anchor systems]. Unfallchirurg 2021; 124:560-567. [PMID: 34143256 DOI: 10.1007/s00113-021-01020-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Injuries to the hamstring muscles and tendon complex are among the most frequent muscular injuries with proximal hamstring tendon avulsion being a particularly severe form. The surgical treatment of these injuries is superior to conservative management with respect to patient satisfaction, recovery of muscle strength and function as well as return to sport rates. It is therefore the method of choice. OBJECTIVE Presentation and comparison of the surgical results after treatment with titanium, polyether ether ketone (PEEK) and all suture anchors. MATERIAL AND METHODS A systematic search was carried out in the PubMed medical database and the results are summarized. RESULTS All systems exhibit comparable biomechanical properties regarding elongation and ultimate failure load. Tendon repair with these anchors results in good to excellent clinical outcomes and shows high return to sport and low complication rates. Patient satisfaction after hamstring tendon repair is reported to be over 90% and return to sport rate is 80-100%. The muscle strength recovers to 80-90% in comparison to the contralateral side. CONCLUSION All available anchors systems provide good to excellent clinical outcomes and an explicit advantage for one anchor system could so far not be shown.
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15
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Ahearn N, Wood DG. Distal avulsion of reconstituted hamstring tendons. Knee Surg Sports Traumatol Arthrosc 2021; 29:1722-1727. [PMID: 32767079 DOI: 10.1007/s00167-020-06202-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 07/31/2020] [Indexed: 11/30/2022]
Abstract
PURPOSE Hamstring tendon autograft (semitendinosus and gracilis) is the most commonly used graft in anterior cruciate ligament (ACL) reconstruction. Distal hamstring tendons avulsion is a rare condition, and this paper describes a previously unreported injury, local management of this rare injury pattern, and the existing literature regarding treatment options. METHODS Two cases are presented of distal hamstring avulsion from the tibia of reconstituted tendons, together with additional 12 cases of distal hamstrings tendon avulsion. Functional outcomes following treatment of this injury are presented, together with a literature review of management options. RESULTS Early surgical reattachment using suture anchor fixation was performed and excellent results were achieved in 93% of cases (13 out of 14 patients). Patient-reported outcome measures demonstrated a median Marx score 14.5 (IQR 4) and median SHORE score 34.5 (IQR 4). The mean time to surgery was 22 days (range 5-60), with mean time to return to sport at pre-injury level 5.5 months (range 2.5-12). CONCLUSIONS Distal hamstring tendon avulsion is a rare condition, with no consensus regarding optimal management options. Acute surgical repair leads to excellent results, with a return to pre-injury level of sporting activity. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Nathanael Ahearn
- North Sydney Orthopaedic and Sports Medicine Centre, Mater Clinic, Wollstonecraft, NSW, 2065, Australia.
| | - David G Wood
- North Sydney Orthopaedic and Sports Medicine Centre, Mater Clinic, Wollstonecraft, NSW, 2065, Australia
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16
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Reza T, Hinkle AJ, Perez-Chaumont A, Brown SM, Mulcahey MK. Systematic Review of Outcome Measures Used After Proximal Hamstring Repair. Orthop J Sports Med 2021; 9:23259671211005101. [PMID: 33997081 PMCID: PMC8113800 DOI: 10.1177/23259671211005101] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 12/14/2020] [Indexed: 11/16/2022] Open
Abstract
Background: Patient-reported outcome measures are important to determine outcomes after
orthopaedic procedures. There is currently no standard for outcome measures
in the evaluation of patient outcomes after proximal hamstring repair. Purpose: To identify and evaluate outcome measures used after proximal hamstring
repair. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review was performed to identify all English-language articles
assessing outcomes after proximal hamstring repair in PubMed, Embase, CINAHL
via EBSCOhost, MEDLINE via OvidSP, and Web of Science between 2000 and 2019.
After duplicates were removed, studies were selected using eligibility
criteria established by the authors. Image reviews, anatomic/histology
studies, literature reviews, surgical technique reports, systematic reviews,
narrative reviews, case studies, and studies with <5 patients were
excluded. Extraction, synthesis, and analysis of outcome measure data were
performed using Microsoft Excel. Quality assessment of included studies was
performed using Methodological Index for Non-Randomized Studies
criteria. Results: After duplicate articles were removed, a total of 304 unique articles were
identified and 27 met the inclusion criteria. The mean number of patients
with proximal hamstring repairs per study was 40. The most frequently
reported outcome measures were return to sport (14/27; 51.9%), custom
survey/questionnaire (13/27; 48.1%), and isokinetic hamstring strength
testing (13/27; 48.1%). Six of the 10 most commonly used outcome measures
were validated and included Lower Extremity Functional Scale, 12-Item Short
Form Health Survey, visual analog scale for pain, Perth Hamstring Assessment
Tool (PHAT), Single Assessment Numeric Evaluation, and Tegner Activity
Scale. Of those, PHAT was the only validated outcome measure designed for
proximal hamstring repair. Conclusion: There is currently no consensus on the best outcome measurements for the
evaluation of patients after proximal hamstring repair. We recommend an
increased commitment to the use of return to sport, isokinetic strength
testing, Lower Extremity Functional Scale, and PHAT when assessing such
injuries. Future studies should aim to define the most reliable methods of
outcome measurement in this patient population through consistent use of
tools that are clinically relevant and important to patients and can easily
be employed in a variety of clinical scenarios.
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Affiliation(s)
- Tara Reza
- School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Andrew J Hinkle
- School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | | | - Symone M Brown
- Department of Orthopaedic Surgery, School of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Mary K Mulcahey
- Department of Orthopaedic Surgery, School of Medicine, Tulane University, New Orleans, Louisiana, USA
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17
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Thompson JW, Plastow R, Kayani B, Moriarty P, Asokan A, Haddad FS. Surgical Repair of Distal Biceps Femoris Avulsion Injuries in Professional Athletes. Orthop J Sports Med 2021; 9:2325967121999643. [PMID: 33855098 PMCID: PMC8013639 DOI: 10.1177/2325967121999643] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/08/2021] [Indexed: 01/12/2023] Open
Abstract
Background Understanding the optimal management of distal biceps femoris avulsion injuries is critical for restoring preinjury function, restoring hamstring muscle strength, increasing range of motion, and minimizing risk of complications and recurrence. Due to the rarity of these injuries, prognosis and outcomes within the literature are limited to case reports and small case series. Purpose To assess the effect of surgical repair for acute distal avulsion injuries of the biceps femoris tendon on (1) return to preinjury level of sporting function and (2) time to return to preinjury level of sporting function, patient satisfaction, and complications. Study Design Case series; Level of evidence, 4. Methods This prospective single-surgeon study included 22 elite athletes (18 men [82%], 4 women [18%]; mean age, 26 years; age range, 17-35 years; mean body mass index, 25.3 ± 4.1 kg/m2) undergoing primary suture anchor repair of avulsion injuries of the distal biceps femoris confirmed on preoperative magnetic resonance imaging. Predefined outcomes relating to time for return to sporting activity, patient satisfaction, complications, and injury recurrence were recorded at regular intervals after surgery. Minimum follow-up time was 12 months (range, 12.0-26.0 months) from the date of surgery. Results The mean time from injury to surgical intervention was 12 days (range, 2-28 days). All study patients returned to their preinjury level of sporting activity, predominately professional soccer or rugby. Mean time from surgical intervention to return to full sporting activity was 16.7 ± 8.7 weeks. At 1- and 2-year follow-up, all study patients were still participating at their preinjury level of sporting activity. There was no incidence of primary injury recurrence, and no patients required further operation to the biceps origin. Conclusion Surgical repair of acute avulsion injuries of the distal biceps femoris facilitated early return to preinjury level of function with low risk of recurrence, low complication rate, and high patient satisfaction in elite athletes. Suture anchor repair of these injuries should be considered a reliable treatment option in athletes with high functional demands to permit an early return to sport with restoration of hamstring strength.
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Affiliation(s)
- Joshua W Thompson
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom.,Department of Trauma & Orthopaedic Surgery, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Ricci Plastow
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom.,Department of Trauma & Orthopaedic Surgery, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Babar Kayani
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom.,Department of Trauma & Orthopaedic Surgery, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Peter Moriarty
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom.,Department of Trauma & Orthopaedic Surgery, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Ajay Asokan
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom.,Department of Trauma & Orthopaedic Surgery, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - Fares S Haddad
- Department of Orthopaedic Surgery, The Princess Grace Hospital, London, United Kingdom.,Department of Trauma & Orthopaedic Surgery, University College London Hospitals NHS Foundation Trust, London, United Kingdom
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18
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Hamula MJ, Cady A, Yousefzadeh K, Banffy M. Endoscopic Implantation of Bioinductive Patch for Chronic Partial Retearing After Hamstring Repair. Arthrosc Tech 2021; 10:e311-e316. [PMID: 33680761 PMCID: PMC7917025 DOI: 10.1016/j.eats.2020.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/08/2020] [Indexed: 02/03/2023] Open
Abstract
Proximal hamstring tendon avulsions are a relatively rare type of hamstring injury associated with persistent morbidity, including pain, weakness, and functional limitations. Open or endoscopic surgical repair is the standard treatment for complete tendon avulsions or partial tears that remain symptomatic despite conservative management in relatively young, healthy, and active patients. However, complications known to occur include retearing of the hamstring, infection, nerve injury, inability to return to work or sport, subjective persistent weakness, and subjective persistent pain. In the case of persistent pain where the repair is partially retorn, a careful history, physical examination, and scrutiny of radiologic studies can help guide management. We describe a technique for using revision endoscopy and augmentation with a bovine bioinductive patch in a case of chronic persistently painful partial retear after a proximal hamstring repair.
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Affiliation(s)
- Mathew J. Hamula
- Cedars-Sinai Kerlan-Jobe Institute, Los Angeles, California, U.S.A
| | - Adam Cady
- Cedars-Sinai Kerlan-Jobe Institute, Los Angeles, California, U.S.A
| | - Keon Yousefzadeh
- Cedars-Sinai Kerlan-Jobe Institute, Los Angeles, California, U.S.A
| | - Michael Banffy
- Cedars-Sinai Kerlan-Jobe Institute, Los Angeles, California, U.S.A
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19
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Bertiche P, Mohtadi N, Chan D, Hölmich P. Proximal hamstring tendon avulsion: state of the art. J ISAKOS 2020; 6:237-246. [PMID: 34272300 DOI: 10.1136/jisakos-2019-000420] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 09/17/2020] [Accepted: 09/24/2020] [Indexed: 11/04/2022]
Abstract
Complete proximal hamstring tendon avulsions from the ischial tuberosity, though infrequent, are the most severe type of hamstring muscle injury in the field of sport medicine. These serious injuries are commonly associated with a delayed or even misdiagnosis, despite obvious clinical findings. The published literature favours surgical repair even though the studies represent lower levels of evidence. Non-surgical treatment is a viable option for lower physical demand patients. This state-of-the-art article reviews the relevant anatomy, the clinical assessment including specific physical examination signs and diagnostic testing in patients suspected of a proximal hamstring avulsion. Up-to-date evidence is reviewed to address surgical and non-surgical treatment options and outcome assessment. The authors provide a detailed description of what would be considered the current worldwide standard of care; an open, suture-anchor-based repair of the avulsed tendon complex (semitendinosus, long head of biceps femoris and semimembranosus) securely to the ischial tuberosity. Also included are surgical tips and tricks, with advice on postsurgical management and rehabilitation. Future perspectives should involve higher quality, prospective research to better define the indications for surgery, evaluate the emerging role of endoscopic repair and disclose complications along with measuring patient-reported outcomes.
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Affiliation(s)
- Pablo Bertiche
- Department of Sport Medicine and Arthroscopic Surgery, Sanatorio Allende, Cordoba, Argentina
| | - Nicholas Mohtadi
- University of Calgary Sport Medicine Centre, Calgary, Alberta, Canada
| | - Denise Chan
- University of Calgary Sport Medicine Centre, Calgary, Alberta, Canada
| | - Per Hölmich
- Sports Orthopedic Research Center, Copenhagen, Denmark.,Department of Orthopedic Surgery, Arthroscopic Center Hvidovre, Hvidovre, Denmark
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20
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Return to Sport After Surgical Management of Proximal Hamstring Avulsions: A Systematic Review and Meta-analysis. Clin J Sport Med 2020; 30:598-611. [PMID: 30444732 DOI: 10.1097/jsm.0000000000000688] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To assess the rates and timing of return to sport for the surgical management of proximal hamstring avulsions (PHAs). METHODS Three databases, PubMed, MEDLINE, and EMBASE, were searched from database inception until October 7, 2017, by 2 reviewers independently and in duplicate. The inclusion criteria were studies reporting return to sport outcomes for surgical management of acute, chronic, complete, and partial PHA. The rate of return to sports was combined in a meta-analysis of proportions using a random-effects model. RESULTS Overall, 21 studies with a total of 846 patients met the inclusion criteria, with a mean age of 41.4 years (range, 14-71 years) and a mean follow-up of 37.8 months (range, 6-76 months). Two studies were of prospective comparative design (level II), 2 were retrospective comparative (level III), 8 were prospective case series (level IV), and 9 were retrospective case series (level IV). The overall mean time to return to sport was 5.8 months (range, 1-36 months). The pooled rate of return to any sport participation was 87% [95% confidence interval (CI), 77%-95%]. The pooled rate of return to preinjury level of sport was 77% (95% CI, 66%-86%). CONCLUSIONS Pooled results suggest a high rate of return to sport after surgical management of PHA; however, this was associated with a lower preinjury level of sport. No major differences in return to sport were found between partial versus complete and acute versus chronic PHA.
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21
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Abstract
Injuries to the hamstring muscle complex are common in athletes, accounting for between 12% and 26% of all injuries sustained during sporting activities. Acute hamstring injuries often occur during sports that involve repetitive kicking or high-speed sprinting, such as American football, soccer, rugby, and athletics. They are also common in watersports, including waterskiing and surfing. Hamstring injuries can be career-threatening in elite athletes and are associated with an estimated risk of recurrence in between 14% and 63% of patients. The variability in prognosis and treatment of the different injury patterns highlights the importance of prompt diagnosis with magnetic resonance imaging (MRI) in order to classify injuries accurately and plan the appropriate management. Low-grade hamstring injuries may be treated with nonoperative measures including pain relief, eccentric lengthening exercises, and a graduated return to sport-specific activities. Nonoperative management is associated with highly variable times for convalescence and return to a pre-injury level of sporting function. Nonoperative management of high-grade hamstring injuries is associated with poor return to baseline function, residual muscle weakness and a high-risk of recurrence. Proximal hamstring avulsion injuries, high-grade musculotendinous tears, and chronic injuries with persistent weakness or functional compromise require surgical repair to enable return to a pre-injury level of sporting function and minimize the risk of recurrent injury. This article reviews the optimal diagnostic imaging methods and common classification systems used to guide the treatment of hamstring injuries. In addition, the indications and outcomes for both nonoperative and operative treatment are analyzed to provide an evidence-based management framework for these patients. Cite this article: Bone Joint J 2020;102-B(10):1281-1288.
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Affiliation(s)
- Justin S Chang
- Department of Trauma and Orthopaedic Surgery, University College London Hospitals, London, UK
| | - Babar Kayani
- Department of Trauma and Orthopaedic Surgery, University College London Hospitals, London, UK.,The Princess Grace Hospital, London, UK
| | - Ricci Plastow
- Department of Trauma and Orthopaedic Surgery, University College London Hospitals, London, UK
| | - Sandeep Singh
- Department of Trauma and Orthopaedic Surgery, University College London Hospitals, London, UK
| | - Ahmed Magan
- Department of Trauma and Orthopaedic Surgery, University College London Hospitals, London, UK
| | - Fares S Haddad
- Department of Trauma and Orthopaedic Surgery, University College London Hospitals, London, UK.,The Princess Grace Hospital, London, UK
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22
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Abstract
Aims Despite the increase in the surgical repair of proximal hamstring tears, there exists a lack of consensus in the optimal timing for surgery. There is also disagreement on how partial tears managed surgically compare with complete tears repaired surgically. This study aims to compare the mid-term functional outcomes in, and operating time required for, complete and partial proximal hamstring avulsions, that are repaired both acutely and chronically. Methods This is a prospective series of 156 proximal hamstring surgical repairs, with a mean age of 48.9 years (21.5 to 78). Functional outcomes were assessed preinjury, preoperatively, and postoperatively (six months and minimum three years) using the Sydney Hamstring Origin Rupture Evaluation (SHORE) score. Operating time was recorded for every patient. Results Overall, significant improvements in SHORE scores were seen at both six months and mid-term follow-up. Preoperatively, acute patients (median score 27.1 (interquartile range (IQR) 22.9)) reported significantly poorer SHORE scores than chronic patients (median score 42.9 (IQR 22.1); p < 0.001). However, this difference was not maintained postoperatively. For partial tears, acutely repaired patients reported significantly lower preoperative SHORE scores compared to chronically reapired partial tears (median score 24.3 (IQR 15.7) vs median score 40.0 (IQR 25.0); p < 0.001) but also significantly higher SHORE scores at six-month follow-up compared to chronically repaired partial tears (median score 92.9 (IQR 10.7) vs. median score 82.9 (IQR 14.3); p < 0.001). For complete tears, there was only a difference in preoperative SHORE scores between acute and chronic groups. Overall, acute repairs had a significantly shorter operating time (mean 64.67 minutes (standard deviation (SD) 12.99)) compared to chronic repairs (mean 74.71 minutes (SD = 12.0); t = 5.12, p < 0.001). Conclusion Surgical repair of proximal hamstring avulsions successfully improves patient reported functional outcomes in the majority of patients, irrespective of the timing of their surgery or injury classification. However, reducing the time from injury to surgery is associated with greater improvement in patient outcomes and an increased likelihood of returning to preinjury functional status. Acute repair appears to be a technically less complex procedure, as indicated by reduced operating times, postoperative neurological symptoms and number of patients requiring bracing. Acute repair is therefore a preference among many surgeons. Cite this article: Bone Joint J 2020;102-B(10):1419–1427.
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Affiliation(s)
- David Wood
- North Sydney Orthopaedics and Sports Medicine Centre, Sydney, Australia
| | - Sofie R. French
- Australian Institute of Musculoskeletal Research, Sydney, Australia
| | - Selin Munir
- Australian Institute of Musculoskeletal Research, Sydney, Australia
| | - Rajiv Kaila
- North Sydney Orthopaedics and Sports Medicine Centre, Sydney, Australia
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Shambaugh BC, Wuerz TH, Miller SL. Does Time From Injury to Surgery Affect Outcomes After Surgical Repair of Partial and Complete Proximal Hamstring Ruptures? Orthop J Sports Med 2020; 8:2325967120946317. [PMID: 32923506 PMCID: PMC7457414 DOI: 10.1177/2325967120946317] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 03/13/2020] [Indexed: 11/15/2022] Open
Abstract
Background No previous study has compared the outcomes of repair for partial and complete proximal hamstring ruptures at various intervals after the injury. Purpose The primary aim was to determine whether time from injury to surgery affected outcomes after primary repair of partial and complete proximal hamstring ruptures. The secondary aim was to assess patients' experiences from initial evaluation to finding a treating surgeon. Study Design Cohort study; Level of evidence, 3. Methods Records from 2007 to 2016 from a single surgeon's practice were reviewed. A total of 124 proximal hamstring repair procedures in 121 patients were identified. There were 92 patients who completed questionnaires: a custom survey, the standard Lower Extremity Functional Scale (LEFS), a custom LEFS, the standard Marx activity scale, a custom Marx activity scale, and the University of California Los Angeles (UCLA) activity score. Results were analyzed for partial and complete repair procedures performed at ≤3 weeks, ≤6 weeks, and >6 weeks after the injury. Results The mean follow-up was 43 months (median, 38 months). Of 93 repair procedures reviewed, 51% (9/28 partial; 38/65 complete), 79% (16/28 partial; 57/65 complete), and 22% (12/28 partial; 8/65 complete) were performed at ≤3 weeks, ≤6 weeks, and >6 weeks, respectively. At those various intervals, no statistical difference was found in standard LEFS, custom LEFS, standard Marx, custom Marx, or UCLA scores. Female sex, older age, and body mass index >30 kg/m2 were negative predictors of outcome measures. When repaired >6 weeks after the injury, a greater percentage of patients reported weakness of the operative leg compared with the contralateral side (partial tears: 6.3% vs 25%, respectively; complete tears: 24.6% vs 50%, respectively) in addition to greater sitting intolerance (partial tears: 0% vs 25%, respectively; complete tears: 7.1% vs 12.5%, respectively). Patients repaired >6 weeks after the injury visited, on average, 2.6 practitioners before an evaluation by the treating surgeon compared with 1.6 treated surgically at ≤6 weeks (P = .008). Conclusion Patients with proximal hamstring repair performed in the acute and chronic settings can expect successful outcomes but may experience more subjective weakness and difficulty with prolonged sitting when the repair is performed >6 weeks after the injury. Patients faced challenges in receiving the correct diagnosis and referral to an appropriate treating surgeon, emphasizing the need for an increased awareness of the injury.
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Affiliation(s)
| | - Thomas H Wuerz
- Boston Sports & Shoulder Center, Waltham, Massachusetts, USA
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Excellent clinical outcome and low complication rate after proximal hamstring tendon repair at mid-term follow up. Knee Surg Sports Traumatol Arthrosc 2020; 28:1230-1235. [PMID: 31650312 DOI: 10.1007/s00167-019-05748-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 10/09/2019] [Indexed: 02/03/2023]
Abstract
PURPOSE Proximal hamstring tendon avulsions lead to a significant loss of strength and a functional deficit of the respective lower limb and surgery is the recommended treatment. Only little is known about the clinical outcomes and complications when comparing acute and chronic management as well as partial and complete tears. Therefore, the purpose of this study was to investigate the clinical results and the complication rate of patients after surgical treatment of proximal hamstring tendon injuries. It was hypothesized that surgical treatment of an acute proximal hamstring avulsion would lead to a superior clinical outcome with a low complication rate and high return to sports rate compared to chronic cases and partial avulsions. METHODS Patients who underwent proximal hamstring tendon repair between 2008 and 2015 were retrospectively evaluated with a minimum follow up of 2 years. Outcome measurements were obtained by means of Lysholm score, Harris Hip Score, Visual Analog Scale, and Tegner Activity Scale. Return to sports (RTS) rate was determined. Postoperative adverse events were recorded and complications reported. Patients' outcomes were compared between acute/chronic repair and partial/complete injury patterns. RESULTS Ninety-four of 120 (78.3%) were available for final assessment at a mean follow-up of 56.2 ± 27.2 months. Clinical outcome measures were excellent and did not differ between the treatment groups or between the different injury patterns. RTS was achieved by 86.2% of the patients and was significantly superior after acute treatment (p < 0.05). The overall complication rate was 8.5% and significantly higher in complete tears compared to partial tears and in delay compared to acute surgery (p < 0.05). CONCLUSION Surgical treatment of proximal hamstring tendon avulsions results in excellent clinical outcome scores and a high RTS rate. Open surgical treatment has shown to be a safe procedure with a low complication rate. Surgical timing is important, as early surgical intervention provides a higher RTS rate and a lower complication rate than delayed surgery and should therefore be preferred in clinical practice. Repair of partial and complete tears lead to similar clinical outcome, but a higher complication rate in complete avulsions. LEVEL OF EVIDENCE Level IV.
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Kayani B, Ayuob A, Begum F, Khan N, Haddad FS. Surgical Management of Chronic Incomplete Proximal Hamstring Avulsion Injuries. Am J Sports Med 2020; 48:1160-1167. [PMID: 32178527 DOI: 10.1177/0363546520908819] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Chronic incomplete proximal hamstring avulsion injuries are debilitating injuries associated with prolonged periods of convalescence and poor return to preinjury level of function. This study explores the efficacy of operative intervention for these injuries on patient satisfaction, muscle strength, range of motion, functional performance, return to preinjury level of sporting activity, and injury recurrence. HYPOTHESIS Surgical intervention of chronic incomplete proximal hamstring avulsion injuries enables return to preinjury level of sporting function with low risk of clinical recurrence. STUDY DESIGN Case series: Level of evidence, 4. METHODS This prospective single-surgeon study included 41 patients with incomplete proximal hamstring avulsion injuries refractory to 6 months of nonoperative treatment. All study patients underwent primary operative repair of the avulsed proximal hamstring tendon and received standardized postoperative rehabilitation. Predefined outcomes were recorded at regular intervals after surgery. Mean follow-up time was 28.2 months (range, 25.0-35.0 months) from date of surgery. RESULTS All patients returned to their preinjury level of sporting activity. Mean ± SD time from surgery to return to full sporting activity was 22.2 ± 6.7 weeks. There were no episodes of clinical recurrence. At 3 months after surgery, 39 patients (95.1%) were satisfied/very satisfied with the outcomes of their surgery, and as compared with preoperative values, improvements were recorded in isometric hamstring muscle strength at 0° (84.9% ± 10.9% vs 40.4% ± 8.8%; P < .001), 15° (89.6% ± 7.6% vs 44.2% ± 11.1%; P < .001), and 45° (94.1% ± 5.1% vs 66.4% ± 9.0%; P < .001); mean passive straight leg raise angle (71.2°± 13.5° vs 45.4°± 11.9°; P < .001); mean lower extremity functional score (70.9 ± 5.1 vs 48.4 ± 5.2; P < .001); and mean Marx activity rating score (5.6 ± 2.8 vs 2.7 ± 1.0; P < .001). High patient satisfaction and functional outcome scores were maintained at 1- and 2-year follow-up. CONCLUSION Operative repair of chronic incomplete proximal hamstring avulsion injuries enabled return to preoperative level of sporting function with no episodes of clinical recurrence at short-term follow-up. Surgical intervention was associated with high patient satisfaction and improved isometric hamstring muscle strength, range of motion, and functional outcome scores as compared with preoperative values. High patient satisfaction and improved functional outcomes were sustained at 2-year follow-up.
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Affiliation(s)
- Babar Kayani
- Department of Trauma and Orthopaedic Surgery, University College Hospital, Fitzrovia, London, UK.,Department of Orthopaedic Surgery, The Princess Grace Hospital, Marylebone, London, UK
| | - Atif Ayuob
- Department of Trauma and Orthopaedic Surgery, University College Hospital, Fitzrovia, London, UK.,Department of Orthopaedic Surgery, The Princess Grace Hospital, Marylebone, London, UK
| | - Fahima Begum
- Department of Trauma and Orthopaedic Surgery, University College Hospital, Fitzrovia, London, UK.,Department of Orthopaedic Surgery, The Princess Grace Hospital, Marylebone, London, UK
| | - Natalia Khan
- Department of Trauma and Orthopaedic Surgery, University College Hospital, Fitzrovia, London, UK.,Department of Orthopaedic Surgery, The Princess Grace Hospital, Marylebone, London, UK
| | - Fares S Haddad
- Department of Trauma and Orthopaedic Surgery, University College Hospital, Fitzrovia, London, UK.,Department of Orthopaedic Surgery, The Princess Grace Hospital, Marylebone, London, UK
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Irger M, Willinger L, Lacheta L, Pogorzelski J, Imhoff AB, Feucht MJ. Proximal hamstring tendon avulsion injuries occur predominately in middle-aged patients with distinct gender differences: epidemiologic analysis of 263 surgically treated cases. Knee Surg Sports Traumatol Arthrosc 2020; 28:1221-1229. [PMID: 31541291 DOI: 10.1007/s00167-019-05717-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 09/11/2019] [Indexed: 11/28/2022]
Abstract
PURPOSE Epidemiologic data of proximal hamstring avulsions have mainly been reported in relatively small patient cohorts. Detailed information on patient demographics, injury mechanism, and injury patterns is lacking in the literature. Since these injuries are rare and frequently misdiagnosed, a better understanding may help to increase awareness and to improve diagnosis of proximal hamstring avulsions. METHODS A chart review was performed to identify all patients who had undergone surgical repair for complete proximal hamstring avulsions between 01/2006 and 02/2019 at the authors' institution. The following demographic and injury-specific data were obtained: Sex, age, body mass index (BMI), cause of injury (sports, activities of daily living, and others), presence of neurologic symptoms referable to the sciatic nerve, time to surgery, injury pattern (affected tendons), tendon retraction, and type of injury according to Wood et al.`s classification (Type 1: osseous avulsions, Type 2: tear at the musculotendinous junction, Type 3: incomplete avulsion from bone, Type 4: complete avulsion with only minimal retraction, and Type 5: complete avulsion with retraction > 2 cm). Data were analyzed for the entire study population and group comparison was performed with regard to sex, cause of injury, and the type of injury. RESULTS A total of 263 patients were included (53% male). The mean age was 49 ± 13 years with most patients (56%) aged between 45-59 years. Most injuries occurred while participating in sports (52%) and injury type 5 was most commonly diagnosed (66%). Five percent of patients had sensory deficits referable to the sciatic nerve. Gender comparison showed that female patients were significantly older, predominantly represented in the age group 45-59 years, and most commonly injured during activities of daily living, whereas male patients were significantly more often represented in younger age groups, and the most common cause of injury was sports. Compared to Type 4 and 5 injuries, patients with a Type 1 injury were significantly younger and had a significantly longer time to surgery. CONCLUSION Proximal hamstring avulsion occurs predominately in the middle-aged patient and only rarely in patients under the age of 30 years. No gender dominance exists. Female patients are typically older and get injured during activities of daily living, whereas male patients are younger and get injured more often during sports. These epidemiologic data may help physicians to make an accurate and early diagnosis. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Markus Irger
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Lukas Willinger
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Lucca Lacheta
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Jonas Pogorzelski
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany
| | - Andreas B Imhoff
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany.
| | - Matthias J Feucht
- Department for Orthopedic Sports Medicine, Technical University Munich, Ismaninger Str. 22, 81675, Munich, Germany.,Department of Orthopaedics and Trauma Surgery, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
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McInnis KC, Chen ET, Finnoff JT, Roh EY, Borg Stein J. Orthobiologics for the Hip Region: A Narrative Review. PM R 2020; 12:1045-1054. [PMID: 31953917 DOI: 10.1002/pmrj.12327] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 01/13/2020] [Indexed: 12/19/2022]
Abstract
Management of hip region disorders is challenging. Orthobiologic treatments including platelet rich plasma (PRP), mesenchymal stem cells, and amniotic injectables have gained popularity as promising treatments despite a lack of robust evidence for their effectiveness. We review rationale and current evidence for orthobiologics for three common hip region conditions: hip osteoarthritis, gluteal tendinopathy, and proximal hamstring tendinopathy. Overall, the current state of evidence is extremely limited for orthobiologic treatments and is predominantly relevant to PRP injections. There is currently a lack of data to support the use of mesenchymal stem cells or amniotic injectables in these conditions of the hip.
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Affiliation(s)
- Kelly C McInnis
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA
| | - Eric T Chen
- Department of Rehabilitation Medicine, University of Washington, Seattle, WA
| | - Jonathan T Finnoff
- Department of Physical Medicine and Rehabilitation, Mayo Clinic College of Medicine and Science, Rochester, MN
| | - Eugene Y Roh
- Department of Orthopedic Surgery, Physical Medicine and Rehabilitation, Stanford University, Redwood City, CA
| | - Joanne Borg Stein
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA
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28
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Fouasson-Chailloux A, Menu P, Mesland O, Dauty M. Strength assessment after proximal hamstring rupture: A critical review and analysis. Clin Biomech (Bristol, Avon) 2020; 72:44-51. [PMID: 31812036 DOI: 10.1016/j.clinbiomech.2019.11.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/26/2019] [Accepted: 11/26/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Muscular strength should be one of the main parameters to assess the interest or not of surgery after proximal hamstring rupture. Yet, this parameter is difficult to compare between the different studies because of the heterogeneous assessment methods. METHODS We realized a critical review of strength assessment methods used to evaluate treatments performed after proximal hamstring rupture. The studies were selected from several medical databases with the keywords: "proximal hamstring rupture" OR "proximal hamstring avulsion" AND "strength" OR "isokinetic". FINDINGS 24 articles evaluated muscular strength after proximal hamstring rupture. 7 have been excluded because the method was not described. 6 types of dynamometric evaluation were used: 2 with an isometric method, 3 with a pneumatic isotonic method and 13 with an isokinetic method. Muscular strengths after non-surgical treatment could not be compared because of the low number of studies and different methods of assessment. After surgery, only isokinetic results measured at the angular speed of 60°/s could have been weighted. A 15% strength deficit was shown at >12 months after surgery. INTERPRETATION Muscular strength assessment methods currently used to evaluate the strength after proximal hamstring rupture are too disparate to clearly define the strength deficit after rupture and surgery. Strength evaluation should be more rigorous in order to prove the real interest of the surgical management.
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Affiliation(s)
- Alban Fouasson-Chailloux
- CHU Nantes, Physical Medicine and Rehabilitation Department, Hôpital Saint Jacques, 85 rue Saint Jacques, 44093 Nantes Cedex 03, France; CHU Nantes, Sports Medicine Department, Hôpital Saint Jacques, 85 rue Saint Jacques, 44093 Nantes Cedex 03, France; Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes F-44042, France.
| | - Pierre Menu
- CHU Nantes, Physical Medicine and Rehabilitation Department, Hôpital Saint Jacques, 85 rue Saint Jacques, 44093 Nantes Cedex 03, France; CHU Nantes, Sports Medicine Department, Hôpital Saint Jacques, 85 rue Saint Jacques, 44093 Nantes Cedex 03, France; Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes F-44042, France
| | - Olivier Mesland
- CHU Nantes, Physical Medicine and Rehabilitation Department, Hôpital Saint Jacques, 85 rue Saint Jacques, 44093 Nantes Cedex 03, France; CHU Nantes, Sports Medicine Department, Hôpital Saint Jacques, 85 rue Saint Jacques, 44093 Nantes Cedex 03, France
| | - Marc Dauty
- CHU Nantes, Physical Medicine and Rehabilitation Department, Hôpital Saint Jacques, 85 rue Saint Jacques, 44093 Nantes Cedex 03, France; CHU Nantes, Sports Medicine Department, Hôpital Saint Jacques, 85 rue Saint Jacques, 44093 Nantes Cedex 03, France; Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes F-44042, France
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Abstract
Objective: Proximal ischial hamstring avulsion injuries are relatively uncommon. As such, the management of these injuries is often highly variable. Consensus agreement is lacking for the indications for repair, along with the operative technique, and post-operative rehabilitation. The purpose of this study was to survey surgeons who treat proximal hamstring avulsion injuries to identify current trends in the management of this injury.Methods: After IRB approval, a 46-question cross-sectional survey was distributed using a secure electronic survey portal. The survey sought to determine surgeon experience, diagnostic preferences, treatment patterns, surgical indications/technique, perceived patient outcomes, surgical complications, as well as post-operative management and rehab protocols. Surveys were completed electronically and anonymously, with invitations distributed to members of the American Orthopedic Society for Sports Medicine (AOSSM) and Arthroscopy Association of Canada (AAC).Results: A total of 108 surgeons who manage proximal hamstring injuries completed the survey. Most respondents (77%) treat one to five of these injuries per year. MRI was the preferred imaging modality to confirm diagnosis. Despite 98% of respondents indicating that there was a role for surgical management of proximal hamstring avulsions, operative treatment was reportedly undertaken in only 50% of cases seen by each respondent. The top three reported surgical indications were: number of tendons involved (most important factor = 42%, second most = 26%, third most = 13%), amount of tendon retraction (28%, 41%, 16%), and patient activity level (16%, 18%, 24%).Conclusion: Based on the practice patterns of the surgeons who completed the survey, there is continued disparity in the management of proximal hamstring avulsions. A lack of agreement exists with regards to surgical indications, operative technique, and post-operative protocols. Most striking is the rate of non-operative treatment and perceived rate of poor outcomes within this cohort. Future research should focus on objective evaluation of non-operative management, and additional variables involved in surgical treatment and post-operative rehabilitation.
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Affiliation(s)
- Nicholas Pasic
- Department of Surgery, Schulich School of Medicine and Dentistry, London, ON, Canada.,Fowler Kennedy Sport Medicine Clinic, Western University, London, ON, Canada
| | - J Robert Giffin
- Department of Surgery, Schulich School of Medicine and Dentistry, London, ON, Canada.,Fowler Kennedy Sport Medicine Clinic, Western University, London, ON, Canada
| | - Ryan M Degen
- Department of Surgery, Schulich School of Medicine and Dentistry, London, ON, Canada.,Fowler Kennedy Sport Medicine Clinic, Western University, London, ON, Canada
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Engler ID, Bragg JT, Miller SL. Incidence of Deep Venous Thrombosis Associated With Proximal Hamstring Rupture. Orthop J Sports Med 2019; 7:2325967119888486. [PMID: 31903398 PMCID: PMC6927196 DOI: 10.1177/2325967119888486] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background: Rates of deep venous thrombosis (DVT) have been studied for most common orthopaedic injuries. However, rates and risk factors have not been published for proximal hamstring injuries. Purpose: To determine the incidence of symptomatic DVT associated with proximal hamstring rupture and associations with prophylactic anticoagulation. Study Design: Case series; Level of evidence, 4. Methods: Inclusion criteria included all complete and, in a separate cohort, partial proximal hamstring ruptures treated by the senior author from 2007 through 2018 with at least 8 weeks of follow-up. Tendinopathy without tear was excluded. No DVT screening was performed. Charts of patients with symptomatic DVT were reviewed for the treatment method, the presence of imaging-confirmed DVT or pulmonary embolism, and risk factors for DVT. No patients received postinjury DVT prophylaxis. Surgical patients were routinely instructed to take aspirin (325 mg bid) or apixaban (2.5 mg bid) for 4 weeks. Patients with risk factors for DVT received enoxaparin (40 mg daily) for 2 weeks followed by aspirin (325 mg bid) for 2 weeks. Results: A total of 144 complete proximal hamstring ruptures were included: 132 treated operatively and 12 treated nonoperatively. There were 10 DVTs associated with the injury, for an overall rate of 6.9%. Five of the DVTs were diagnosed preoperatively in patients who had not received DVT prophylaxis; the other 5 were diagnosed postoperatively in patients on DVT prophylaxis. Six of the 10 DVTs had identifiable risk factors. All patients with postoperatively diagnosed DVTs were on prophylactic aspirin or enoxaparin. In the partial proximal hamstring rupture cohort of 114 ruptures, there were no DVTs. Conclusion: There is a high incidence of DVT associated with complete proximal hamstring ruptures (6.9%) despite many patients receiving DVT prophylaxis. This is substantially higher than that in other lower extremity injuries. Clinicians should have a high index of suspicion for DVT after these injuries, and postinjury DVT prophylaxis may be warranted.
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Affiliation(s)
- Ian D Engler
- Department of Orthopaedics, Tufts Medical Center, Boston, Massachusetts, USA
| | - Jack T Bragg
- Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Suzanne L Miller
- Boston Sports and Shoulder Center, Waltham, Massachusetts, USA.,New England Baptist Hospital, Boston, Massachusetts, USA
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Crupnik J, Silveti S, Wajnstein N, Rolon A, Vollhardt A, Stiller P, Schmitz C. Is radial extracorporeal shock wave therapy combined with a specific rehabilitation program (rESWT + RP) more effective than sham-rESWT + RP for acute hamstring muscle complex injury type 3b in athletes? Study protocol for a prospective, randomized, double-blind, sham-controlled single centre trial. J Orthop Surg Res 2019; 14:234. [PMID: 31337441 PMCID: PMC6651966 DOI: 10.1186/s13018-019-1283-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/16/2019] [Indexed: 12/29/2022] Open
Abstract
Background Acute injuries of the hamstring muscle complex (HMC) type 3b (interfascicle/bundle-tear) are frequently observed in various sports disciplines both in elite and recreational sport. The treatment of choice of acute HMC injuries type 3b is a progressive physiotherapeutic exercise programme. Besides this, there is currently only insufficient scientific evidence to support other treatment methods, including local infiltrations and injections of platelet-rich-plasma. Very recently, it was demonstrated that extracorporeal shock wave therapy (ESWT) may accelerate regeneration after acute skeletal muscle injury. The aim of the present study is to test the hypothesis that the combination of radial ESWT (rESWT) and a specific rehabilitation program (RP) is effective and safe in treatment of acute HMC injury type 3b in athletes, and is statistically significantly more effective than the combination of sham-rESWT and RP. Methods We will perform a double blind, randomized, sham-controlled clinical trial at the clinic KinEf Kinesiología Deportiva, Ciudad Autónoma de Buenos Aires, Argentina. Forty patients with acute HMC injury type 3b will be randomly allocated to receive either rESWT (nine rESWT sessions; three sessions per week; 2500 radial extracorporeal shock waves (rESWs) per session; energy density depending on what the patient tolerates) or sham-rESWT. In addition, all patients will receive a specific rehabilitation program that will last for 8 weeks. The primary outcome measure will be the individual time (days) necessary to return to play. Secondary outcomes will include the presence or absence of reinjury during a time period of 6 months after inclusion into the study. Discussion Because of the lack of adequate treatment options for acute HMC injury type 3b in athletes and particularly the high reinjury rate, we hypothesize that the results of this trial will be of importance and have impact on clinical practice. Trial registration ClinicalTrials.gov ID NCT03473899. Registered March 22, 2018.
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Affiliation(s)
| | | | | | | | - Alisa Vollhardt
- Extracorporeal Shock Wave Research Unit, Chair of Neuroanatomy, Institute of Anatomy, Faculty of Medicine, LMU Munich, 80336, Munich, Germany
| | - Peter Stiller
- Department of General Medicine, Clinic Lechhausen, Augsburg, Germany.,Medical Team, FC Augsburg 1907 Football Club, Augsburg, Germany
| | - Christoph Schmitz
- Extracorporeal Shock Wave Research Unit, Chair of Neuroanatomy, Institute of Anatomy, Faculty of Medicine, LMU Munich, 80336, Munich, Germany.
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van der Made AD, Hölmich P, Kerkhoffs GMMJ, Gouttebarge V, D’Hooghe P, Tol JL. Proximal hamstring tendon avulsion treatment choice depends on a combination of clinical and imaging-related factors: a worldwide survey on current clinical practice and decision-making. J ISAKOS 2019. [DOI: 10.1136/jisakos-2019-000292] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
ObjectivesTo evaluate current practice in the treatment of proximal hamstring tendon avulsions and identify decision-making preferences.MethodsAn invitation to an anonymous e-survey containing 32 questions was sent to 3475 members of the International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS) and the European College of Sports and Exercise Physicians (ECOSEP).ResultsWe received 403 (12%) unique responses with a completion rate of 79%. Participants were orthopaedic/trauma surgeons (90%), sports medicine physicians (7%) or physical therapists (2%). For 83% of the participants, the preferred treatment (ie, surgical or non-operative) depends on the individual case. Participants base their decision-making process on patient- and injury-related factors (decision modifiers). The five most frequently selected decision modifiers that support the choice for surgical treatment were diminished function (84%), neurological symptoms (74%), involved tendons (82%), tendon retraction on MRI (84%) and patient preference for surgery (78%). The majority prefer early surgical repair (<2 weeks after injury) to achieve highest functional outcome (63%) and ensure a low complication risk (61%). Suture anchors are used by 93% of the participants for tendon reattachment. Estimated recovery duration (ie, time to return to sports) was a median 12 weeks (IQR: 12–20) for non-operative treatment and 17 weeks (IQR: 12–24) for surgical treatment. Estimated reinjury risk was a median 25% (IQR: 10–31.5) and 10% (IQR: 5–20), respectively.ConclusionThis survey among experienced medical professionals has summarised current practice and identified treatment decision-making preferences. The typical surgical patient has a retracted (>2 cm) two-tendon avulsion (ie, common tendon and semimembranosus tendon), is unable to engage in sports or activities of daily life, reports sciatic symptoms and prefers surgical treatment. Surgery is thought to prolong recovery and decrease reinjury risk compared with non-operative treatment and is preferably performed early.Level of evidenceLevel V.
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Pihl E, Skoldenberg O, Nasell H, Jonhagen S, Kelly Pettersson P, Hedbeck CJ. Patient-reported outcomes after surgical and non-surgical treatment of proximal hamstring avulsions in middle-aged patients. BMJ Open Sport Exerc Med 2019; 5:e000511. [PMID: 31191968 PMCID: PMC6539150 DOI: 10.1136/bmjsem-2019-000511] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2019] [Indexed: 11/03/2022] Open
Abstract
Objectives In the literature on proximal hamstring avulsions, only two studies report the outcomes of non-surgically treated patients. Our objective was to compare subjective recovery after surgical and non-surgical treatment of proximal hamstring avulsions in a middle-aged cohort. Methods We included 47 patients (33 surgically and 14 non-surgically treated) with a mean (SD) age of 51 (±9) years in a retrospective cohort study. Follow-up time mean (SD) of 3.9 (±1.4) years. The outcome variables were the Lower Extremity Functional Scale (LEFS) and questions from the Proximal Hamstring Injury Questionnaire. Outcome variables were adjusted in regression models for gender, age, American Society of Anestesiologits (ASA) classification and MRI findings at diagnosis. Results The baseline characteristics showed no differences except for the MRI result, in which the surgically treated group had a larger proportion of tendons retracted ≥ 2 cm. The mean LEFS score was 74 (SD±12) in the surgically treated cohort and 72 (SD±16) in the non-surgically treated cohort. This was also true after adjusting for confounders. The only difference in outcome at follow-up was the total hours performing physical activity per week, p=0.02; surgically treated patients reported 2.5 hours or more (5.2 vs 2.7). Conclusion This study on middle-aged patients with proximal hamstring avulsions was unable to identify any difference in patient-reported outcome measures between surgically and non-surgically treated patients. The vast majority of patients treated surgically had complete proximal hamstring avulsions with ≥ 2 cm of retraction. We conclude that to obtain an evidence-based treatment algorithm for proximal hamstring avulsions studies of higher scientific level are needed.
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Affiliation(s)
- Elsa Pihl
- Ortopedkliniken Danderyds sjukhus, Karolinska Institutet Department of Clinical Sciences Danderyd Hospital, Danderyd, Sweden
| | - Olof Skoldenberg
- Ortopedkliniken Danderyds sjukhus, Karolinska Institutet Department of Clinical Sciences Danderyd Hospital, Danderyd, Sweden
| | - Hans Nasell
- Ortopedkliniken Danderyds sjukhus, Karolinska Institutet Department of Clinical Sciences Danderyd Hospital, Danderyd, Sweden
| | - Sven Jonhagen
- Ortopedkliniken Danderyds sjukhus, Karolinska Institutet Department of Clinical Sciences Danderyd Hospital, Danderyd, Sweden
| | - Paula Kelly Pettersson
- Ortopedkliniken Danderyds sjukhus, Karolinska Institutet Department of Clinical Sciences Danderyd Hospital, Danderyd, Sweden
| | - Carl Johan Hedbeck
- Ortopedkliniken Danderyds sjukhus, Karolinska Institutet Department of Clinical Sciences Danderyd Hospital, Danderyd, Sweden
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Abstract
PURPOSE OF REVIEW To outline the typical presentation, physical examination, diagnostic imaging, and therapeutic treatment options for proximal hamstring injuries to improve awareness, expedient diagnosis, and definitive management. RECENT FINDINGS Proximal hamstring tendinopathy and partial-thickness tears can often successfully be managed with a combination of non-operative modalities, including physiotherapy focused on eccentric strengthening, extracorporeal shock wave therapy, or peri-tendinous injections. Surgery is reserved for refractory cases, but can yield good outcomes. Contrastingly, non-operative treatment often leads to unsatisfactory outcomes in complete ruptures, with residual weakness and reduced function with poor return-to-sport rates. Instead, surgical repair can provide satisfactory outcomes, with good-to-excellent functional outcomes and strength, with acute treatment preferred over delayed, chronic repair. Hamstring tendinopathy and partial-thickness tears can be successfully treated non-operatively with good functional outcomes, with surgical repair reserved for refractory cases. Complete tears are best managed with surgical repair, allowing improved strength and functional outcomes.
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Affiliation(s)
- Ryan M Degen
- Fowler Kennedy Sport Medicine Clinic, 3M Centre, Western University, 1151 Richmond Street, London, ON, N6A 3K7, Canada.
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Bowman EN, Marshall NE, Gerhardt MB, Banffy MB. Predictors of Clinical Outcomes After Proximal Hamstring Repair. Orthop J Sports Med 2019; 7:2325967118823712. [PMID: 30800686 PMCID: PMC6378442 DOI: 10.1177/2325967118823712] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Background Proximal hamstring avulsions cause considerable morbidity. Operative repair results in improved pain, function, and patient satisfaction; however, outcomes remain variable. Purpose To evaluate the predictors of clinical outcomes after proximal hamstring repair. Study Design Case series; Level of evidence, 4. Methods We retrospectively reviewed proximal hamstring avulsions repaired between January 2014 and June 2017 with at least 1-year follow-up. Independent variables included patient demographics, medical comorbidities, tear characteristics, and repair technique. Primary outcome measures were the Single Assessment Numerical Evaluation (SANE), International Hip Outcome Tool-12 (iHOT-12), and Kerlan-Jobe Orthopaedic Clinic (KJOC) Athletic Hip score. Secondary outcome measures included satisfaction, visual analog scale for pain, Tegner score, and timing of return to sports. Results Of 102 proximal hamstring repairs, 86 were eligible, 58 were enrolled and analyzed (67%), and patient-reported outcomes were available for 45 (52%), with a mean 29-month follow-up. The mean patient age was 51 years, and 57% were female. Acute tears accounted for 66%; 78% were complete avulsions. Open repair was performed on 90%. Overall satisfaction was 94%, although runners were less satisfied compared with other athletes (P = .029). A majority of patients (88%) returned to sports by 7.6 months, on average, with 72% returning at the same level. Runners returned at 6.3 months, on average, but to the same level 50% of the time and at a decreased number of miles per week compared to nonrunners (15.7 vs 7.8, respectively; P < .001). Postoperatively, 78% had good/excellent SANE Activity scores, but the mean Tegner score decreased (from 5.5 to 5.1). Acute tears had higher SANE Activity scores. The mean iHOT-12 and KJOC scores were 99 and 77, respectively. Endoscopic repairs had equivalent outcome scores to open repairs, although conclusions were limited given the small number of patients in the endoscopic group. Greater satisfaction was noted in patients older than 50 years (P = .024), although they were less likely to return to running (P = .010). Conclusion Overall, patient satisfaction and functionality were high. With the numbers available, we were unable to detect any significant differences in functional outcome scores based on patient age, sex, body mass index, smoking status, medical comorbidities, tear grade, activity level, or open versus endoscopic technique. Acute tears had better SANE Activity scores. Runners should be cautioned that they may be unable to return to the same preinjury activity level after proximal hamstring repair. Clinical Relevance When counseling patients with proximal hamstring tears, runners and those with chronic tears should set appropriate expectations.
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Affiliation(s)
- Eric N Bowman
- Department of Orthopaedic Surgery and Rehabilitation, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | | | | | - Michael B Banffy
- Cedars-Sinai Kerlan-Jobe Institute, Los Angeles, California, USA
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Bodendorfer BM, Curley AJ, Kotler JA, Ryan JM, Jejurikar NS, Kumar A, Postma WF. Outcomes After Operative and Nonoperative Treatment of Proximal Hamstring Avulsions: A Systematic Review and Meta-analysis. Am J Sports Med 2018; 46:2798-2808. [PMID: 29016194 DOI: 10.1177/0363546517732526] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND No meta-analysis has compared outcomes of operative and nonoperative proximal hamstring avulsion treatment. PURPOSE To compare outcomes of operative and nonoperative proximal hamstring avulsion treatment, including acute, chronic, partial, and complete repairs. STUDY DESIGN Meta-analysis. METHODS PubMed, CINAHL, SPORTdiscus, Cochrane Library, EMBASE, and Web of Science were searched up to July 2016. Three authors screened the studies and performed quality assessment using criteria from the Methodologic Index for Nonrandomized Studies. A best evidence synthesis was subsequently used. RESULTS Twenty-four studies (795 proximal hamstring avulsions) were included. Twenty-two studies included proximal hamstring avulsion repairs; 1 study had proximal hamstring avulsion repairs and a control group of nonoperatively treated proximal hamstring avulsions; and 1 study had solely nonoperatively treated proximal hamstring avulsions. The majority of studies were of low methodological quality. Overall, repairs had significantly higher patient satisfaction (90.81% vs 52.94%), hamstring strength (85.01% vs 63.95%), Lower Extremity Functional Scale scores (72.77 vs 69.53), and single-legged hop test results (119.1 vs 56.62 cm) (all P < .001); complications occurred in 23.17% of cases. Compared with chronic repairs, acute avulsion repairs had greater patient satisfaction (95.48% vs 83.79%), less pain (1.07 vs 3.71), and greater strength (85.2% vs 82.8%), as well as better scores for the Lower Extremity Functional Scale (75.64 vs 71.5), UCLA activity scale (University of California, Los Angeles; 8.57 vs 8.10), and Single Assessment Numeric Evaluation (93.36 vs 86.50) (all P < .001). Compared with partial avulsion repairs, complete avulsion repairs had higher patient satisfaction (89.64% vs 81.35%, P < .001), less pain (1.87 vs 4.60, P < .001), and higher return to sport or preinjury activity level, but this was insignificant (81.43% vs 73.83%, P = .082). Partial avulsion repairs had better hamstring strength (86.04% vs 83.71%, P < .001) and endurance (107.13% vs 100.17%, P < .001). Complete repairs had significantly higher complication rates (29.38% vs 11.27%, P = .001). CONCLUSION Proximal hamstring avulsion repair resulted in superior outcomes as compared with nonoperative treatment, although the complication rate was 23.17%. The nonoperative group was quite small, making a true comparison difficult. Acute repairs have better outcomes than do chronic repairs. Complete avulsion repairs had higher patient satisfaction, less pain, and a higher complication rate than partial avulsion repairs, although partial avulsion repairs had better hamstring strength and endurance. Studies of high methodological quality are lacking in terms of investigating the outcomes of proximal hamstring avulsion repairs.
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Affiliation(s)
- Blake M Bodendorfer
- Department of Orthopaedic Surgery, MedStar Georgetown University Hospital, Washington, DC, USA
| | - Andrew J Curley
- Department of Orthopaedic Surgery, MedStar Georgetown University Hospital, Washington, DC, USA
| | - Joshua A Kotler
- Bone & Joint/Sports Medicine Institute, Naval Medical Center Portsmouth, Portsmouth, Virginia, USA
| | - James M Ryan
- School of Medicine, Georgetown University, Washington, DC, USA
| | | | - Anagha Kumar
- Department of Orthopaedic Surgery, MedStar Georgetown University Hospital, Washington, DC, USA
| | - William F Postma
- Department of Orthopaedic Surgery, MedStar Georgetown University Hospital, Washington, DC, USA
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Shambaugh BC, Olsen JR, Lacerte E, Kellum E, Miller SL. A Comparison of Nonoperative and Operative Treatment of Complete Proximal Hamstring Ruptures. Orthop J Sports Med 2017; 5:2325967117738551. [PMID: 29201925 PMCID: PMC5697601 DOI: 10.1177/2325967117738551] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Background: The early repair of acute proximal hamstring ruptures provides better clinical results than delayed repair. However, it is unclear how nonoperative treatment compares with the operative treatment of these injuries. Purpose: To compare the clinical results of the nonoperative and operative treatment of acute proximal hamstring ruptures. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 25 patients with complete, retracted proximal hamstring ruptures presenting to 1 institution were retrospectively reviewed. All patients were given the option of proximal hamstring repair at the time of the initial evaluation. Patients with at least 12 months of follow-up from the time of surgery or injury were included in the evaluation. Both nonoperative and operative treatment groups were evaluated using the same outcome measures. The primary outcome measure was the Lower Extremity Functional Scale (LEFS). Secondary outcome measures included the Short Form–12 (SF-12) physical and mental component summaries, strength testing, a single-leg hop test, the patient’s perception of strength, and the ability to return to activity. Results: There were 11 patients treated nonoperatively, with a mean follow-up of 2.48 ± 3.66 years, and 14 patients treated operatively, with a mean follow-up of 3.56 ± 2.11 years. The mean LEFS scores for the nonoperative and operative groups were 68.50 ± 7.92 and 74.71 ± 5.38, respectively (P = .07). No statistical differences were found between the groups regarding SF-12 scores and mean single-leg hop distance compared with the uninjured leg. Isometric testing of the injured hamstring in the nonoperative group demonstrated significant clinical weakness compared with the uninjured side at both 45° and 90° of flexion (57.54% ± 7.8% and 67.73% ± 18.8%, respectively). Isokinetic testing of the injured leg in the operative group demonstrated 90.87% ± 16.3% strength of the uninjured leg. All patients in the operative group were able to return to preinjury activities, whereas 3 patients in the nonoperative group were unable to return (chi-square = 4.33, P = .07). Conclusion: Patients with acute proximal hamstring ruptures treated surgically regained approximately 90% strength of the uninjured extremity and tended to have a greater likelihood of returning to preinjury activities than patients treated nonoperatively.
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Affiliation(s)
| | - Joshua R Olsen
- Canandaigua Orthopaedic Associates, Canandaigua, New York, USA
| | | | - Ethan Kellum
- Regenerative Solutions Sports and Orthopedics, Franklin, Tennessee, USA
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Ernlund L, Vieira LDA. Hamstring injuries: update article. Rev Bras Ortop 2017; 52:373-382. [PMID: 28884093 PMCID: PMC5582808 DOI: 10.1016/j.rboe.2017.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 08/19/2016] [Indexed: 11/09/2022] Open
Abstract
Hamstring (HS) muscle injuries are the most common injury in sports. They are correlated to long rehabilitations and have a great tendency to recur. The HS consist of the long head of the biceps femoris, semitendinosus, and semimembranosus. The patient's clinical presentation depends on the characteristics of the lesion, which may vary from strain to avulsions of the proximal insertion. The most recognized risk factor is a previous injury. Magnetic resonance imaging is the method of choice for the injury diagnosis and classification. Many classification systems have been proposed; the current classifications aim to describe the injury and correlate it to the prognosis. The treatment is conservative, with the use of anti-inflammatory drugs in the acute phase followed by a muscle rehabilitation program. Proximal avulsions have shown better results with surgical repair. When the patient is pain free, shows recovery of strength and muscle flexibility, and can perform the sport's movements, he/she is able to return to play. Prevention programs based on eccentric strengthening of the muscles have been indicated both to prevent the initial injury as well as preventing recurrence.
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40
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Startzman AN, Fowler O, Carreira D. Proximal Hamstring Tendinosis and Partial Ruptures. Orthopedics 2017; 40:e574-e582. [PMID: 28195608 DOI: 10.3928/01477447-20170208-05] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 08/22/2016] [Indexed: 02/03/2023]
Abstract
Proximal hamstring tendinosis and partial hamstring origin ruptures are painful conditions of the proximal thigh and hip that may occur in the acute, chronic, or acute on chronic setting. Few publications exist related to their diagnosis and management. This systematic review discusses the incidence, treatment, and prognosis of proximal hamstring tendinosis and partial hamstring ruptures. Conservative treatment measures include nonsteroidal anti-inflammatory drugs, physical therapy, rest, and ice. If these measures fail, platelet-rich plasma or shockwave therapy may be considered. When refractory to conservative management, these injuries may be treated with surgical debridement and hamstring reattachment. [Orthopedics. 2017; 40(4):e574-e582.].
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Piposar JR, Vinod AV, Olsen JR, Lacerte E, Miller SL. High-Grade Partial and Retracted (<2 cm) Proximal Hamstring Ruptures: Nonsurgical Treatment Revisited. Orthop J Sports Med 2017; 5:2325967117692507. [PMID: 28321428 PMCID: PMC5347437 DOI: 10.1177/2325967117692507] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND High-grade partial proximal hamstring tears and complete tears with retraction less than 2 cm are a subset of proximal hamstring injuries where, historically, treatment has been nonoperative. It is unknown how nonoperative treatment compares with operative treatment. HYPOTHESIS The clinical and functional outcomes of nonoperative and operative treatment of partial/complete proximal hamstring tears were compared. We hypothesize that operative treatment of these tears leads to better clinical and functional results. STUDY DESIGN Case series; Level of evidence, 4. METHODS A retrospective review identified patients with a high-grade partial or complete proximal hamstring rupture with retraction less than 2 cm treated either operatively or nonoperatively from 2007 to 2015. All patients had an initial period of nonoperative treatment. Surgery was offered if patients had continued pain and/or limited function refractory to nonoperative treatment with physical therapy. Outcome measures were each patient's strength perception, ability to return to activity, Lower Extremity Functional Scale (LEFS) score, Short Form-12 (SF-12) physical and mental component outcome scores, distance traversed by a single-leg hop, and Biodex hamstring strength testing. RESULTS A total of 25 patients were enrolled in the study. The 15 patients who were treated nonoperatively sustained injuries at a mean age of 55.73 ± 14.83 years and were evaluated 35.47 ± 30.35 months after injury. The 10 patients who elected to have surgery sustained injuries at 50.40 ± 6.31 years of age (P = .23) and were evaluated 30.11 ± 19.43 months after surgery. LEFS scores were significantly greater for the operative group compared with the nonoperative group (77/80 vs 64.3/80; P = .01). SF-12 physical component scores for the operative group were also significantly greater (P = .03). Objectively, operative and nonoperative treatment modalities showed no significant difference in terms of single-leg hop distance compared with each patient's noninjured leg (P = .26) and torque deficit at isokinetic speeds of 60 and 180 deg/s (P = .46 and .70, respectively). CONCLUSION Patients who undergo operative and nonoperative treatment of high-grade partial and/or complete proximal hamstring tears with <2 cm retraction demonstrate good clinical and functional outcomes. In our series, 40% of patients treated nonoperatively with physical therapy went on to have surgery. For those patients with persistent pain and/or loss of function despite conservative treatment, surgical repair is a viable treatment option that is met with good results.
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Affiliation(s)
- Jonathan R. Piposar
- New England Baptist Hospital, Boston, Massachusetts, USA
- Jonathan R. Piposar, MD, Orthopedic Partners, 11 Industrial Park Road, Niantic, CT 06357, USA ()
| | - Amrit V. Vinod
- University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | | | - Edward Lacerte
- Boston Celtics and Prosports Therapy, Waltham, Massachusetts, USA
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Buckwalter J, Westermann R, Amendola A. Complete proximal hamstring avulsions: is there a role for conservative management? A systematic review of acute repairs and non-operative management. J ISAKOS 2017. [DOI: 10.1136/jisakos-2016-000105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Thompson SM, Fung S, Wood DG. The prevalence of proximal hamstring pathology on MRI in the asymptomatic population. Knee Surg Sports Traumatol Arthrosc 2017; 25:108-111. [PMID: 27492382 DOI: 10.1007/s00167-016-4253-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Accepted: 07/27/2016] [Indexed: 11/30/2022]
Abstract
PURPOSE Injury to the proximal hamstring complex (PHC) is becoming more frequently diagnosed. Patients attending our tertiary referral centre demonstrated 'pathological changes' in the unaffected normal contralateral PHC on MRI. The prevalence of PHC pathology, however, has not been previously documented in the literature in asymptomatic subjects. It is the hypothesis of this study that the natural history of asymptomatic pathological change on MRI in the PHC is not clear. The aim is to quantify the natural history of PHC degeneration. METHOD Two hundred and fifty-three consecutive patients with an asymptomatic PHC were reviewed retrospectively between 2009 and 2010. The PHC was assessed in multiple MRI planes by a specialist musculoskeletal consultant radiologist. RESULTS Five hundred and six proximal hamstrings complexes were reviewed. Eighty-nine patients (35 %) were radiological normal both sides, median age 51 years (range 13-88). Thirty-four patients (13 %) had unilateral pathology, median age 55 years (range 25-89). Of these, 3 patients (1 %) had presence of a complete tear, median age 81 years (range 72-87). Sixteen patients (7 %) had tendinosis, median age 60 years (range 37-78). Fifteen patients (6 %) had a unilateral partial tear, median age 57 years (range 35-78). One hundred and thirty patients (52 %) had bilateral pathology, median age 65 years (range 25-89). Fifty-three patients (21 %) had the presence of bilateral tendinopathy alone, median age 56 years (range 25-89). Twenty-seven patients (11 %) had a partial tear on one side and tendinosis on the other, median age 68 years (range 38-89). Thirty-nine patients (15 %) had evidence of bilateral partial tears, median age 63 years (range 36-89), with 52 % demonstrating a torn conjoined and semi-membranosus tendon. The remaining 48 % had either an isolated tear of the conjoined or the semi-membranosus (the more commonly injured tendon 74 % of the time). Four patients (2 %) had bilateral complete ruptures with a median age of 68 years (range 59-78). Six patients (2 %) had a complete tear on one side and a partial tear on the other, median age 68 years (range 34-83). One patient had a complete tear on one side and tendinosis on the other, age 81 years. CONCLUSION There is a higher prevalence of pathology in the asymptomatic population, 15 % have bilateral partial tears, and 2 % have bilateral complete tears. The semi-membranosus being the most affected, this may help clinically stratify the need for surgical intervention. LEVEL OF EVIDENCE I.
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Affiliation(s)
- S M Thompson
- Chelsea and Westminster NHS Foundation Trust, 369 Fulham Road, London, SW10 9NH, UK.
| | - S Fung
- Mater Imaging, 3 Gillies St, Wollstonecraft, Sydney, 2068, Australia
| | - D G Wood
- North Sydney Othopaedic and Sports Medicine Centre, 3 Gillies St, Wollstonecraft, Sydney, 2068, Australia
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Gross anatomical and dimensional characteristics of the proximal hamstring origin. Knee Surg Sports Traumatol Arthrosc 2015; 23:2576-82. [PMID: 24929658 DOI: 10.1007/s00167-014-3124-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 06/03/2014] [Indexed: 10/25/2022]
Abstract
PURPOSE The current study was undertaken to better define the gross anatomical and dimensional characteristics of the proximal hamstring origin. METHODS Twelve paired whole-lower extremities from six embalmed cadavers were dissected. The gross anatomy of the proximal hamstrings was studied. With the tendons attached to the ischial tuberosity, the width and thickness of each tendon was measured 1 cm distally to their origin, and the distance from the most proximal border of the common origin of the semitendinosus (ST) and long head of the biceps (LB) to their distal junction was assessed. After removal of the hamstring group, the shape, orientation, and dimension of the tendon footprints were determined. RESULTS One cadaver demonstrated unique anatomy, which was considered as an anatomic variant and was therefore excluded from the study group. The ST and LB had a common origin on the posterolateral aspect of the ischial tuberosity (ST/LB), whereas the semimembranosus (SM) had a separated origin at the anterolateral aspect. The mean distance from the most proximal border of the ST/LB origin to the distal junction was 10.0 ± 1.3 cm. The shape of both footprints was longitudinal-oval, with the longitudinal axes of the SM and ST/LB footprints parallel aligned. Mean tendon width was 3.4 ± 0.5 cm for the common ST/LB complex and 4.2 ± 0.9 cm for the SM (p = 0.009). The corresponding values for tendon thickness were 1.0 ± 0.3 cm (ST/LB) and 0.8 ± 0.2 cm (SM), respectively (n.s.). Mean footprint length was 3.9 ± 0.4 cm for ST/LB and 4.5 ± 0.5 cm for SM (p = 0.002). The corresponding values for footprint height were 1.4 ± 0.5 cm (ST/LB) and 1.2 ± 0.3 cm (SM), respectively (n.s.). CONCLUSION The ST and LB had a common origin, whereas the SM originated separately. The site of origin of both tendons was the lateral aspect of the ischial tuberosity, with the SM footprint lying directly anterior to the footprint of the ST/LB complex. The footprint of the SM was significantly wider than the footprint of the ST/LB. The reported gross anatomic findings and dimensions may aid surgeons in anchor placement at the anatomical attachment site, thereby facilitating anatomic hamstring repair. In addition, the provided data may improve diagnosis and conservative treatment of proximal hamstring tendinopathy, since detailed knowledge about the normal anatomy is crucial for recognizing tendon abnormalities and for several conservative treatment modalities such as shockwave application or ultrasound-guided injections.
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Conservative Treatment of Subacute Proximal Hamstring Tendinopathy Using Eccentric Exercises Performed With a Treadmill: A Case Report. J Orthop Sports Phys Ther 2015; 45:557-62. [PMID: 25996362 PMCID: PMC4615691 DOI: 10.2519/jospt.2015.5762] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
STUDY DESIGN Case report. BACKGROUND Proximal hamstring tendinopathy in runners is characterized by pain with passive hip flexion with the knee extended, active hip extension, and pain with sitting. Relatively little literature exists on the condition, and publications on nonsurgical treatment protocols are even more scarce. Surgical intervention, which comprises the majority of literature for treatment of this condition, is an option for cases that fail to respond to nonsurgical treatment. CASE DESCRIPTION The patient was a 34-year-old, otherwise healthy male triathlete with unilateral proximal hamstring tendinopathy diagnosed by ultrasound, who had pain only with running and prolonged sitting. After he failed to respond to 4 weeks of eccentric knee flexion and lumbopelvic musculature strengthening exercises, an eccentric hip extensor strengthening program using a treadmill was initiated. This treadmill exercise was performed on a daily basis, in addition to a lumbopelvic musculature strengthening program. OUTCOMES The patient noted a decrease in pain within 2 weeks of initiating the new exercise, and was able to return to gradual running after 4 weeks and to speed training after 12 weeks. He returned to competition shortly thereafter and had no recurrence for 12 months after the initiation of therapy. His score on the Victorian Institute of Sport Assessment-proximal hamstring tendons improved from 23 on initial presentation to 83 at 12 weeks after the initiation of therapy. DISCUSSION We described the management of a triathlete with subacute proximal hamstring tendinopathy, who responded well to nonsurgical treatment using eccentric hip extension strengthening using a treadmill. LEVEL OF EVIDENCE Therapy, level 4.
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Boutin RD, Fritz RC. MRI of Musculotendinous Injuries—What’s New? Part II: Strain Injuries. CURRENT RADIOLOGY REPORTS 2015. [DOI: 10.1007/s40134-015-0109-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Hamming MG, Philippon MJ, Rasmussen MT, Ferro FP, Turnbull TL, Trindade CAC, LaPrade RF, Wijdicks CA. Structural properties of the intact proximal hamstring origin and evaluation of varying avulsion repair techniques: an in vitro biomechanical analysis. Am J Sports Med 2015; 43:721-8. [PMID: 25527082 DOI: 10.1177/0363546514560878] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Although surgical repair has been reported to provide improved outcomes compared with nonoperative treatment in the management of complete proximal hamstring origin avulsions, no intact or avulsion repair biomechanical data exist to support various repair strategies or guide postoperative rehabilitation. PURPOSE To compare failure load among 4 proximal hamstring tendon conditions: (1) intact, (2) repair with 2 small anchors (2S), (3) repair with 2 large anchors (2L), and (4) repair with 5 small anchors (5S). STUDY DESIGN Controlled laboratory study. METHODS Twenty-four human cadaveric hemipelvises were randomly allocated to 1 of the 4 testing groups. Intact and repaired specimens were subjected to cyclic loading at 1 Hz between 25 N and a progressively increasing maximum load that was incremented by 200 N every 50 cycles, beginning at 200 N and increasing to 1600 N. Displacement, maximum load, stiffness, number of cycles to failure, and mode of failure during cyclic loading were recorded and analyzed. RESULTS The intact proximal hamstring tendons failed at the highest cyclic force of all tested groups, yet no significant differences existed between the intact (1405 ± 157 N) and 5S repair (1164 ± 294 N) conditions. Both the 2S and the 2L repair groups failed at a level significantly lower than the intact hamstring (474 ± 145 N [P < .001] and 543 ± 245 N [P < .001], respectively). The maximum load attained by the 5S repairs was significantly greater than the loads attained by the 2S (P = .005) and 2L (P = .013) repairs. CONCLUSION Repairs using 5 small anchors were similar to the intact tendon and were significantly stronger than repairs using only 2 large or 2 small anchors in the repair of complete avulsions of the proximal hamstring tendons. Additionally, no significant differences in strength were observed when only anchor size differed. CLINICAL RELEVANCE This finding supports the clinical investigation of postoperative range of motion rehabilitation protocols that permit full flexion and extension of the hip and knee when a 5-anchor repair construct is used.
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Affiliation(s)
- Mark G Hamming
- Steadman Philippon Research Institute, Vail, Colorado, USA The Steadman Clinic, Vail, Colorado, USA
| | - Marc J Philippon
- Steadman Philippon Research Institute, Vail, Colorado, USA The Steadman Clinic, Vail, Colorado, USA
| | | | | | | | | | - Robert F LaPrade
- Steadman Philippon Research Institute, Vail, Colorado, USA The Steadman Clinic, Vail, Colorado, USA
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A qualitative and quantitative analysis of the attachment sites of the proximal hamstrings. KNEE SURGERY, SPORTS TRAUMATOLOGY, ARTHROSCOPY : OFFICIAL JOURNAL OF THE ESSKA 2014. [PMID: 24859732 DOI: 10.1007/s00167-014-3074-6.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
PURPOSE Proximal hamstring tears represent a challenge. Surgical repair of such tears has been reported utilizing both open and endoscopic techniques. It was hypothesized that the proximal attachments of the hamstring muscle group could be reproducibly and consistently measured from pertinent bony anatomical reference landmarks. METHODS Fourteen fresh-frozen, human cadaveric specimens were dissected, and measurements were taken regarding the proximal attachments of the hamstring muscle group in reference to bony landmarks. A highly precise coordinate measuring device was used for three-dimensional measurements of tendon footprints and bony landmarks, and relevant distances between structures were calculated. RESULTS The semitendinosus and long head of the biceps femoris shared a proximal origin (conjoined tendon), having an oval footprint with an average area of 567.0 mm(2) [95 % CI 481.0-652.9]. The semimembranosus (SM) footprint was crescent-shaped and located anterolateral to the conjoined tendon, with an average area of 412.4 mm(2) [95 % CI 371.0-453.8]. The SM footprint had an accessory tendinous extension that extended anteromedially forming a distinct footprint. A consistent bony landmark was found at the medial ischial margin, 14.6 mm [95 % CI 12.7-16.5] from the centre of the conjoined tendon footprint, which coincided with the distal insertion of the sacrotuberous ligament. CONCLUSION The conjoined tendon was the largest attachment of the proximal hamstring group. Two other distinct attachment footprints were identified as the SM footprint and the accessory tendinous extension. The sacrotuberous ligament insertion served as a bony landmark. The anatomical data established in this study may aid in better restoring the anatomy during repair of proximal hamstring tears.
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