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Atzmon R, Iohanes E, Dubin J, Rosenthal A, Drexler M, Sherman SL. Bifocal avulsion fracture and fixation of the patellar tendon: a case report. J ISAKOS 2023; 8:497-501. [PMID: 37487912 DOI: 10.1016/j.jisako.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 04/21/2023] [Accepted: 07/04/2023] [Indexed: 07/26/2023]
Abstract
Acute distal patella tendon avulsion from the tibial tubercle (TT) is a relatively rare injury that is usually described in the adolescents or elderly population in their 7th or 8th decades. Bifocal avulsion fractures of the patella tendon from the TT and the distal pole of the patella are exceptionally rare in adults. In this case report, we present a 52-year-old healthy old male who was treated for bifocal avulsion of the patellar tendon with open reduction and internal fixation augmented with two ULTRATAPE sutures. To our knowledge, this is the first case report to describe this injury in a healthy middle-aged patient.
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Affiliation(s)
- Ran Atzmon
- Stanford University, Department of Orthopaedic Surgery, Stanford, CA, 94305, USA.
| | - Eitan Iohanes
- Assuta Medical Center, Department of Orthopaedic Surgery, Affiliated with the Faculty of Health and Science and Ben Gurion University, HaBarzel St 20, Tel Aviv-Yafo, Israel.
| | - Jeremy Dubin
- Tel Aviv Medical Center, Department of Orthopaedic Surgery, Affiliated with the Sackler Faculty of Medicine and Tel Aviv University, Kaufmann St 6, Tel Aviv-Yafo, 6801298, Israel.
| | - Alex Rosenthal
- Assuta Medical Center, Department of Orthopaedic Surgery, Affiliated with the Faculty of Health and Science and Ben Gurion University, HaBarzel St 20, Tel Aviv-Yafo, Israel.
| | - Michael Drexler
- Assuta Medical Center, Department of Orthopaedic Surgery, Affiliated with the Faculty of Health and Science and Ben Gurion University, HaBarzel St 20, Tel Aviv-Yafo, Israel.
| | - Seth L Sherman
- Stanford University, Department of Orthopaedic Surgery, Stanford, CA, 94305, USA.
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Medvecky MJ, Kahan JB, Richter DL, Islam W, McLaughlin WM, Moran J, Alaia MJ, Miller MD, Wascher DC, Treme GP, Campos TVO, Held M, Schenck RC. Extensor Mechanism Disruption Impacts Treatment of Dislocated and Multiligament Injured Knees: Treatment and Schenck Classification Recommendations Based on a Global Delphi Method. J Bone Joint Surg Am 2023:00004623-990000000-00801. [PMID: 37186688 DOI: 10.2106/jbjs.23.00079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
BACKGROUND Multiligament knee injury (MLKI) with associated extensor mechanism (EM) involvement is a rare injury, with limited evidence to guide optimal treatment. The purpose of this study was to identify areas of consensus among a group of international experts regarding the treatment of patients with MLKI and concomitant EM injury. METHODS Utilizing a classic Delphi technique, an international group of 46 surgeons from 6 continents with expertise in MLKI undertook 3 rounds of online surveys. Participants were presented with clinical scenarios involving EM disruption in association with MLKI, classified using the Schenck Knee-Dislocation (KD) Classification. Positive consensus was defined as ≥70% agreement with responses of either "strongly agree" or "agree," and negative consensus was defined as ≥70% agreement with "strongly disagree" or "disagree." RESULTS There was a 100% response rate for rounds 1 and 2 and a 96% response rate for round 3. There was strong positive consensus (87%) that an EM injury in combination with MLKI significantly alters the treatment algorithm. For an EM injury in conjunction with a KD2, KD3M, or KD3L injury, there was positive consensus to repair the EM injury only and negative consensus regarding performing concurrent ligamentous reconstruction at the time of initial surgery. CONCLUSIONS In the setting of bicruciate MLKI, there was overall agreement on the significant impact of EM injury on the treatment algorithm. We therefore recommend that the Schenck KD Classification be updated with the addition of the modifier suffix "-EM" to highlight this impact. Treatment of the EM injury was judged to have the highest priority, and there was consensus to treat the EM injury only. However, given the lack of clinical outcome data, treatment decisions need to be made on a case-by-case basis with consideration of the numerous clinical factors that are encountered. CLINICAL RELEVANCE Little clinical evidence exists to guide the surgeon on the management of EM injury in the setting of a multiligament injured or dislocated knee. This survey highlights the impact that EM injury has on the treatment algorithm and provides some guidance for management until a further large case series or prospective studies are undertaken.
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Affiliation(s)
- Michael J Medvecky
- Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, Connecticut
| | - Joseph B Kahan
- Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, Connecticut
| | - Dustin L Richter
- Department of Orthopaedics and Rehabilitation, University of New Mexico, Albuquerque, New Mexico
| | - Wasif Islam
- Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, Connecticut
| | - William M McLaughlin
- Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, Connecticut
| | - Jay Moran
- Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, Connecticut
| | - Michael J Alaia
- Department of Orthopedic Surgery, New York University Langone Health, New York, NY
| | - Mark D Miller
- Department of Orthopaedic Surgery, University of Virginia, Charlottesville, Virginia
| | - Daniel C Wascher
- Department of Orthopaedics and Rehabilitation, University of New Mexico, Albuquerque, New Mexico
| | - Gehron P Treme
- Department of Orthopaedics and Rehabilitation, University of New Mexico, Albuquerque, New Mexico
| | - Túlio V O Campos
- Departamento de Ortopedia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Michael Held
- Department of Orthopaedic Surgery, University of Cape Town, Cape Town, South Africa
| | - Robert C Schenck
- Department of Orthopaedics and Rehabilitation, University of New Mexico, Albuquerque, New Mexico
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Figueras JH, Johnson BM, Thomson C, Dailey SW, Betz BE, Grawe BM. Team Approach: Treatment of Traumatic Dislocations of the Knee. JBJS Rev 2023; 11:01874474-202304000-00004. [PMID: 37058579 DOI: 10.2106/jbjs.rvw.22.00188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
» Traumatic knee dislocations are complex injuries that can be associated with compromise of the neurovascular structures about the knee. » Various classification systems for knee dislocations exist in the literature but should be used with caution as a prognostic tool because many knee dislocations fit into more than 1 category. » Special populations of knee dislocations, such as obese patients and high-velocity mechanism injuries, require additional caution during the initial evaluation for possible vascular injuries.
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Affiliation(s)
- Jorge H Figueras
- Department of Orthopaedics and Sports Medicine, University of Cincinnati Medical Center, Cincinnati, Ohio
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Sundararajan SR, Ramakanth R, Rajasekaran S. Concomitant Patellar Tendon Tear (PTT) with Cruciate and/ Collateral ligament injury (Multi- Ligamentous Knee Injury -MLKI) and new pathoanatomical -Ganga PTT classification aids to strategize treatment options. Injury 2023; 54:712-721. [PMID: 36428146 DOI: 10.1016/j.injury.2022.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 10/08/2022] [Accepted: 10/30/2022] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Concomitant patellar tendon (PT) tear with cruciate or multi-ligament knee injuries (MLKI) following high-velocity injury requires a systematic approach. METHODS The study is a retrospective case series of patients (2008-2019) with concomitant PT ligament injury with cruciate or collateral ligament injury (MLKI), including bony avulsion injuries. Isolated cruciate and MLKI without patellar tendon tears are excluded. N = 32 patients (1 female and 31 male) are divided into two groups, Group 1 (11 patients) with PT tear and ACL tear and group 2 (21 patients) with PT tear and MLKIs. Patients were taken up for a single stage in types 1,2,3 and staged repair with reconstruction for types 4,5 of our new classification. All the patients are followed up regularly, and IKDC and Lyshom's score and objective radiological stress x-rays taken at each follow-up RESULTS: Incidence of PTT combined injuries among all knee ligament injuries is 0.57%. The mean age was 35.09+/-11.96 SD(group1) and 36.55+/-11.89 SD(group2). The average follow-up was 34.45 months +/- 12.86SD (group 1) and 35.3 months +/- 15.75 SD (group2). Mean post-operative Lysholm score and IKDC score of group 1 and group 2 improvement was statistically significant p-value <=0.01. The mean post-operative ROM of the two groups were 132.73 (SD 6.46) (Group 1) and 111.75 (15.75) (Group 2) and was a statistically significant p-value <0.01. Residual lag of 30° seen in all patients improved by 3rd month in group 1 and 6th month in group 2. Knee stiffness is seen in 2 patients and superficial infection in 2 patients. CONCLUSION PTT combined injuries are rare and occurs due to direct impact injuries. Single-stage PT repair with ACL reconstruction gives adequate stability, and extensor lag is eminent and needs supervised rehabilitation. PT with MLKI is a challenging scenario that can be performed in single-stage/multiple stages, depending on the injuries, surgical expertise, and institutional facilities. Newer simplified classification aids surgeons in planning a treatment strategy.
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Affiliation(s)
- Silvampatti Ramasamy Sundararajan
- Department of Arthroscopy and Sports Medicine, Ganga Medical Center and Hospital, #313, Mettupalyam road near Saibaba Kovil, Coimbatore, Tamil Nadu 641043, India.
| | - Rajagopalakrishnan Ramakanth
- Department of Arthroscopy and Sports Medicine, Ganga Medical Center and Hospital, #313, Mettupalyam road near Saibaba Kovil, Coimbatore, Tamil Nadu 641043, India.
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Mojica ES, Bi AS, Vasavada K, Moran J, Buzin S, Kahan J, Alaia EF, Jazrawi LM, Medvecky MJ, Alaia MJ. Poorer functional Outcomes in Patients with Multi-Ligamentous Knee Injury with Concomitant Patellar Tendon Ruptures at 5 years Follow-Up. Knee Surg Sports Traumatol Arthrosc 2023; 31:325-331. [PMID: 36048200 DOI: 10.1007/s00167-022-07110-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 08/04/2022] [Indexed: 01/25/2023]
Abstract
PURPOSE Multi-ligamentous knee injuries (MLKIs) are high-energy injuries that may infrequently present with concomitant patellar tendon rupture. There is limited information in the literature regarding these rare presentations, with even less information regarding clinical outcomes. Using propensity-score matching, the purpose of this study was to compare the outcomes of MLKIs with and without patellar tendon ruptures and to investigate the overall predictors of these outcomes. METHODS Twelve patients who underwent surgical repair for combined MLKI and patellar tendon rupture from 2011 to 2020 with minimum 1-year follow-up data were identified from two separate institutions. Patients were propensity-score matched with a 1:1 ratio with controls based on age, body mass index (BMI), gender, and time from surgery. Patient-reported outcomes included International Knee Documentation Committee (IKDC) Subjective Knee Form, Lysholm and Tegner scores. RESULTS Twelve MLKIs with concomitant patellar tendon injuries were identified out of a multicenter cohort of 237 (5%) patients sustaining MLKI and were case matched 1:1 with 12 MLKIs without extensor mechanism injuries. The average follow-up was 5.5 ± 2.6 years. There were no differences in Schenck Classification injury patterns. There were significant differences found across IKDC (Patellar Tendon mean: 53.1 ± 24.3, MLKI mean 79.3 ± 19.6, P < 0.001) and Lysholm scores (Patellar Tendon mean: 63.6 ± 22.3, MLKI mean 86.3 ± 10.7, P < 0.001) between the two, illustrating poorer outcomes for patients with concomitant patellar tendon ruptures. CONCLUSION In the setting of MLKI, patients who have a concomitant patellar tendon rupture have worse functional outcomes compared to those without. This information will be important for patient counseling and might be considered to be added to Schenck classification, reflecting its prognostic value. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Edward S Mojica
- Orthopedic Surgery, Division of Sports Medicine, New York University Langone Health, New York, NY, USA.
| | - Andrew S Bi
- Orthopedic Surgery, Division of Sports Medicine, New York University Langone Health, New York, NY, USA
| | - Kinjal Vasavada
- Orthopedic Surgery, Division of Sports Medicine, New York University Langone Health, New York, NY, USA
| | - Jay Moran
- Department of Orthopedics and Rehabilitation, Yale School of Medicine, New Haven, CT, USA
| | - Scott Buzin
- Orthopedic Surgery, Division of Sports Medicine, New York University Langone Health, New York, NY, USA
| | - Joseph Kahan
- Department of Orthopedics and Rehabilitation, Yale School of Medicine, New Haven, CT, USA
| | - Erin F Alaia
- Orthopedic Surgery, Division of Sports Medicine, New York University Langone Health, New York, NY, USA
| | - Laith M Jazrawi
- Orthopedic Surgery, Division of Sports Medicine, New York University Langone Health, New York, NY, USA
| | - Michael J Medvecky
- Department of Orthopedics and Rehabilitation, Yale School of Medicine, New Haven, CT, USA
| | - Michael J Alaia
- Orthopedic Surgery, Division of Sports Medicine, New York University Langone Health, New York, NY, USA
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Ogawa H, Matsumoto K, Yoshioka H, Sengoku M, Akiyama H. Fracture of the tibial tubercle does not affect clinical outcomes in medial opening wedge high tibial osteotomy with distal tibial tubercle osteotomy. Arch Orthop Trauma Surg 2022; 142:607-613. [PMID: 33226460 DOI: 10.1007/s00402-020-03688-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 11/06/2020] [Indexed: 12/28/2022]
Abstract
PURPOSE To investigate whether tibial tubercle fracture affected clinical outcomes and bony union in medial opening wedge high tibial osteotomy with distal tibial tubercle osteotomy (DTO) and to determine the anatomical risk factors for tibial tubercle fracture. MATERIALS AND METHODS All patients who underwent DTO were retrospectively reviewed, and 104 successive patients were included. The Knee Society Score and complications including tibial tubercle fracture were recorded. On radiographs and computed tomography scans, the length, thickness, width, height, and bony union of the osteotomized tibial tubercle and the posterior tibial slope were statistically analysed. RESULTS Fracture of the tibial tubercle occurred intraoperatively in 11 patients (10.6%) and in the postoperative period in 1 (1.0%). The case of postoperative fracture showed non-union. There was no significant difference in the Knee Society Score between the non-fracture and fracture groups. There were significant differences in the posterior tibial slope and the height of the tibial tubercle between the groups (p < 0.0001 for each comparison). The logistic regression analysis showed that the height of the tibial tubercle was associated with a higher risk of the fracture of the tibial tubercle (p < 0.01; OR, 1.548; 95% CI, 1.149-2.085). However, there were no significant differences in the bony union rate of the tibial tubercle at 6 months after surgery between the groups. CONCLUSIONS Tibial tubercle fracture did not affect the clinical outcome and bony union in spite of the relatively high occurrence rate. Anatomical risk factors for the fractures was a lower tibial tubercle position. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Hiroyasu Ogawa
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, 503-0015, Japan.,Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194, Japan
| | - Kazu Matsumoto
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194, Japan.
| | - Hiroki Yoshioka
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194, Japan
| | - Masaya Sengoku
- Department of Orthopaedic Surgery, Ogaki Tokushukai Hospital, Hayashi-machi 6-85-1, Ogaki, 503-0015, Japan
| | - Haruhiko Akiyama
- Department of Orthopaedic Surgery, Gifu University Graduate School of Medicine, Yanagido 1-1, Gifu, 501-1194, Japan
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Allred G, Arevalo A, Brooks R, Greenhill DA. Delayed diagnosis and treatment of a distal patellar tendon avulsion in an adolescent. BMJ Case Rep 2022; 15:e248526. [PMID: 35228250 PMCID: PMC8886437 DOI: 10.1136/bcr-2021-248526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Distal patellar tendon avulsions are uncommon. While much is known about proximal patella tendon ruptures, there are very few reports to guide treatment of a patellar tendon disruption near the tibial tuberosity. Moreover, delayed diagnosis and treatment presents additional challenges. We present a distal patellar tendon avulsion in an adolescent whereby diagnosis and treatment were delayed due to a distracting nearby contaminated wound. The tendon was separated from post-traumatic scar then repaired back to its native footprint using suture anchors. This report aims to increase awareness of this rare diagnosis as well as provide details about our chosen treatment and rehabilitation protocol.
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Affiliation(s)
- Gabrielle Allred
- Drexel University College of Medicine, Philadelphia, Pennsylvania, USA
| | | | | | - Dustin Adam Greenhill
- Orthopaedic Surgery, St Luke's University Health Network, Bethlehem, Pennsylvania, USA
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Pagdal S. Traumatic Rupture of the Patellar Tendon From the Tibial Tuberosity in an Adult: A Case Report. Cureus 2021; 13:e19050. [PMID: 34722013 PMCID: PMC8547195 DOI: 10.7759/cureus.19050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2021] [Indexed: 11/23/2022] Open
Abstract
Patellar tendon ruptures from the tibial tuberosity are very uncommon. Various surgical techniques are described for patellar tendon ruptures from the tibial tuberosity. A 58-year-old male without any predisposing factors had pain and swelling in the right knee due to a road traffic accident. Tense swelling and ecchymosis were present around the right knee with a palpable defect over the patellar tendon and an inability to extend the right knee. An MRI report revealed avulsion of the distal patellar tendon from the tibial tubercle insertion and medial meniscus tear. Primary repair was done with a double-loaded suture anchor and augmentation was done by using a Gracilis tendon. After the months, the knee range of motion (ROM) of the patient reached up to 90 degrees, and there was no extension lag on straight leg raise. Hamstring augmentation with a primary repair is the safest and a good surgical option in elderly patients with patellar tendon ruptures from the tibial tuberosity.
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Affiliation(s)
- Saurabh Pagdal
- Arthroscopic Surgery, Dr Pagdal Ortho Clinic, Sangamner, IND
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Steiger C, Coulin B, Vendeuvre T, Tabard-Fougere A, De Marco G, Habre C, Dayer R, Ceroni D. Distal Patellar Tendon Avulsion Associated with an ACL Tear in a Teenager: A Case Report and Review of the Literature. Case Rep Orthop 2021; 2021:6686487. [PMID: 34327033 DOI: 10.1155/2021/6686487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 07/03/2021] [Indexed: 11/27/2022] Open
Abstract
Distal patellar tendon avulsions are rare injuries in healthy individuals, and to date, no case affecting skeletally mature teenagers and adolescents has been reported. In the majority of cases, distal patellar tendon avulsions are associated with severe intra-articular knee lesions, signifying a high-energy trauma. We present the case of a 15.5-year-old female who was admitted to the emergency department after a knee injury. The mechanism of injury was a combination of landing after a jump off a scooter and sudden deceleration with a fixed foot. Lateral radiographs revealed a distal patellar tendon avulsion. An MRI was conducted to accurately diagnose concomitant lesions. The MRI revealed a complete tear of the ACL, and associated bone bruises on the lateral femoral condyle, and also on the posterolateral tibial plateau. A knee joint exam under general anesthesia demonstrated good stability during valgus stress testing and only a grade 1 positive Lachman test. Therefore, we decided to only reconstruct the extensor mechanism and to abstain from a primary ACL reconstruction. The presented case and review of the literature demonstrate the clinical relevance of this atypical lesion. In fact, a distal patellar tendon avulsion after physeal fusion of the proximal tibia should raise a strong suspicion of severe associated intra-articular knee lesions and requires prompt MRI investigation. However, controversy still exists regarding the management of these injuries, in particular concerning the question of whether to address both injuries in a single stage or in 2 stages.
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Shelton TJ, Delman C, McNary S, Taylor JR, Marder RA. Aging Decreases the Ultimate Tensile Strength of Bone-Patellar Tendon-Bone Allografts. Arthroscopy 2021; 37:2173-2180. [PMID: 33713755 DOI: 10.1016/j.arthro.2021.02.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 02/17/2021] [Accepted: 02/25/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE The purpose of this study was to determine whether aging imparts a clinically significant effect on the (1) mechanism of graft failure and (2) structural, material, and viscoelastic properties of patellar tendon allografts by evaluating these properties in younger donors (≤30 years of age) and older donors (>50 years of age). METHODS A total of 34 younger (≤30 years of age) and 34 older (>50 years of age) nonirradiated, whole bone-tendon-bone allografts were prepared for testing by isolating the central third of the patellar tendon using a double-bladed 10-mm width scalpel under a 10-N load to ensure uniformity of harvest. Bone blocks were potted in polymethylmethacrylate within custom molds. Tendon length and cross-sectional area were measured using an area micrometer. A mechanical loading system was used to precondition the grafts for 100 cycles with a load between 50 N and 250 N (1 Hz). A creep load (500 N) was then applied at a rate of 100 mm/min (10 minutes). Grafts were allowed to recover at 1 N (10 minutes), followed by pull-to-failure at a rate of 100% strain per second. Mechanisms of failure (midsubstance vs avulsion) were noted and the structural, material, and viscoelastic properties calculated and compared between groups. RESULTS There were 33 (97%) midsubstance tears in the younger group and 28 (82%) in the older group (P = .034). Younger grafts showed greater ultimate load to failure (1,782 N [1,533, 2,032] vs 1,319 N [1,103, 1,533]) (P = .006) and ultimate tensile stress (37.4 MPa [32.4, 42.4] vs 27.5 MPa [22.9, 32.0]) (P = .006). There were no significant differences in displacement (P = .595), stiffness (P = .950), strain (P = .783), elastic modulus (P = .114), creep displacement (P = .881), and creep strain (P = .614). CONCLUSIONS This in vitro study suggests that aging weakens the bone-tendon junction and decreases the ultimate tensile strength of patellar tendon allografts. However, aging did not affect the displacement, strain, stiffness, elastic modulus, creep displacement, or creep strain of patellar tendon allografts. CLINICAL RELEVANCE Surgeons should be aware that patellar tendon allografts from donors >50 years of age have a lower ultimate tensile stress than donors ≤30 years of age.
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Affiliation(s)
- Trevor J Shelton
- Department of Orthopaedic Surgery, Southern California Orthopedic Institute, Van Nuys, California, U.S.A..
| | - Connor Delman
- Department of Orthopaedic Surgery, University of California at Davis, Sacramento, California, U.S.A
| | - Sean McNary
- Department of Orthopaedic Surgery, University of California at Davis, Sacramento, California, U.S.A
| | | | - Richard A Marder
- Department of Orthopaedic Surgery, University of California at Davis, Sacramento, California, U.S.A
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Woolnough T, Lovsted G, MacDonald A, Johal H, Al-Asiri JA. Combined Tibial Tubercle Fracture With Patellar Tendon Avulsion in an Adult: A Rare Case and Novel Fixation Technique. Cureus 2020; 12:e7929. [PMID: 32494537 PMCID: PMC7265755 DOI: 10.7759/cureus.7929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Tibial tubercle avulsion fracture with simultaneous patellar tendon avulsion is a rare injury that has only ever been reported in adolescents; the diagnosis and management of this combined lesion has not been described in the adult population. A healthy 62-year-old male presented with acute knee pain and an inability to walk after a fall on ice. Radiographs demonstrated a displaced fracture of the tibial tubercle; patellar tendon integrity could not be verified by ultrasonography. Intraoperatively, the patient was found to have a distal avulsion of the patellar tendon in addition to tubercle fracture. First, the tendon was secured to the tubercle fragment with transosseous sutures. A novel slotted-plate construct was used to fix the tubercle fragment prior to tightening the sutures. Postoperatively, the patient was permitted to bear weight as tolerated with the operative knee immobilized in extension. After six weeks, knee range of motion was gradually increased using a hinged brace. At one year, the patient had achieved excellent range of motion (full extension to 135 degrees of flexion) and strength (5/5 knee flexion and extension) without residual pain or complications. This case represents the first description of diagnosis, management, and rehabilitation of a combined tibial tubercle fracture with distal patellar tendon avulsion in an adult. The unique construct, a slotted-plate over transosseous sutures, provided excellent results and likely has further applications.
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Rocha de Faria JL, de Barros Carvalho M, Marques AC, Cavanellas NT, Branco de Sousa E, Barretto JM, Mozella AP. Surgical Treatment for Chronic Rupture of the Patellar Tendon Performed in 2 Stages. Arthrosc Tech 2020; 9:e159-66. [PMID: 32021790 DOI: 10.1016/j.eats.2019.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/13/2019] [Indexed: 02/03/2023] Open
Abstract
Patellar tendon rupture is an uncommon but disabling lesion. It usually occurs in men younger than 40 years, through direct or indirect trauma. Obtaining satisfactory results with treatment of chronic injuries and re-ruptures in which the patella retracts owing to quadriceps contraction is a challenge. This is of major concern especially in cases in which the patella cannot be positioned in its anatomic position when distal traction is performed. In these cases, V-Y stretching of the quadriceps can be performed in an attempt to perform reconstruction in 1 stage. Instead, a 2-stage procedure can be chosen, in which the first stage relies on patellar trans-skeletal traction to achieve distalization of the patella. In 1981, a technique for the treatment of chronic injuries of the patellar tendon in 2 stages was described. In that procedure, the first stage consisted of transpatellar traction and the second stage was tendon-tendon suturing with fascia lata reinforcement. We describe a surgical technique performed in 2 stages; in the first stage, trans-skeletal traction is performed, and in the second stage, the technique of Kelikian et al. with our modification is performed. This technique is used in patients with chronic rupture of the patellar tendon associated with a high patella with nonreducible quadriceps shortening.
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Abstract
Introduction: Pre-existing conditions and surgical interventions, such as those associated with Osgood-Schlatter disease, can lead to atypical patellar tendon ruptures. These cases can present irregularly and be challenging to diagnose. Patellar tendon rupture from the tibial tubercle insertion region is a rare, and currently undocumented condition, requiring surgical intervention to restore knee joint functionality for daily activities. This presentation requires a unique treatment approach, as standard reconstruction techniques do not apply. Case Report: A 65-year-old Caucasian male, with a remote history of gout and surgical intervention for symptomatic Osgood-Schlatter disease, suffered sudden hyperflexion with eccentric contraction of the right knee while hiking. The patient presented with massive right knee effusion and significant tenderness over the tibial tubercle, with an inability to extend the knee. After radiographs were inconclusive, magnetic resonance imaging was performed showing a tear of the medial aspect of the distal patellar tendon. Conclusion: Surgical intervention for Osgood-Schlatter disease can be a potential risk factor for patellar tendon rupture from the tibial tubercle. Since a variety of surgical interventions for symptomatic Osgood-Schlatter disease exist, it is important to consider the long-term effects and counsel patients on the associated risks of the procedures. Initial diagnosis of patellar tendon rupture can be surprisingly challenging when the presentation is atypical. Attention to detail during physical examination and evaluation of imaging is a necessity for early detection and treatment, which can afford excellent functional outcomes
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Affiliation(s)
- Sarah Dawn Lang
- Department of Orthopaedics, Mammoth Orthopedic Institute, PO Box 660, Mammoth Lakes, California 93546, U.S.A
| | - Matthew Robert Henry Irons
- Department of Orthopaedics, Mammoth Orthopedic Institute, PO Box 660, Mammoth Lakes, California 93546, U.S.A
| | - Brian Brandon Gilmer
- Department of Orthopaedics, Mammoth Orthopedic Institute, PO Box 660, Mammoth Lakes, California 93546, U.S.A
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14
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Abstract
Knee dislocations are devastating when they occur on the athletic field or secondary to motor sports. The complexity of presentation and spectrum of treatment options makes these injuries unique and extremely challenging to even the most experienced knee surgeons. An astute appreciation of the treatment algorithm is essential to plan individualized management since no two complex knee dislocations are ever the same. Moreover, attention to detail and finesse of surgical technique are required to obtain a good functional result and ensure return to play. Over the past 10 years, our service has treated 43 competitive sportsmen with knee dislocations, and this experience forms the basis for this narrative review.
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Affiliation(s)
- Dinshaw N Pardiwala
- Centre for Sports Medicine, Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India,Address for correspondence: Dr. Dinshaw N Pardiwala, Kokilaben Dhirubhai Ambani Hospital, Four Bungalows, Andheri (W), Mumbai - 400 053, Maharashtra, India. E-mail:
| | - Nandan N Rao
- Centre for Sports Medicine, Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
| | - Karthik Anand
- Centre for Sports Medicine, Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
| | - Alhad Raut
- Centre for Sports Medicine, Kokilaben Dhirubhai Ambani Hospital, Mumbai, Maharashtra, India
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