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Chen Y, Wang Y, Zhan H, Geng B, Xia Y. Management of Patellar Instability: A Network Meta-analysis of Randomized Control Trials: Letter to the Editor. Am J Sports Med 2024; 52:NP6-NP7. [PMID: 38690621 DOI: 10.1177/03635465241242297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
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Hu F, Wang C, Du Y, Guo Z, Zhang K, Ma Y, Yang Y, Gong X, Wang H, Liu P, Shi W. Medial Patellofemoral Complex Reconstruction (Combined Reconstruction of Medial Patellofemoral Ligament and Medial Quadriceps Tendon-Femoral Ligament) With Semitendinosus Autograft Resulted in Similar Clinical and Radiographic Outcomes to Medial Patellofemoral Ligament Reconstruction in Treating Recurrent Patellar Dislocation. Arthroscopy 2024; 40:1264-1276.e1. [PMID: 37716628 DOI: 10.1016/j.arthro.2023.08.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 08/17/2023] [Accepted: 08/20/2023] [Indexed: 09/18/2023]
Abstract
PURPOSE To compare clinical and radiographic outcomes of medial patellofemoral ligament reconstruction (MPFL-R) and medial patellofemoral complex reconstruction (MPFC-R) for recurrent patellar dislocation. Outcome measures were compared based on the Insall-Salvati index. METHODS Patients who were diagnosed with recurrent patellar dislocation and underwent either MPFL-R or MPFC-R (combined reconstruction of MPFL and medial quadriceps tendon-femoral ligament) were retrospectively analyzed. Group allocation was based on surgical procedure and patient characteristics were collected. Clinical assessments included patient-reported outcome measures (PROMs) and return-to-sports rates. Minimal clinically important difference analysis was performed. A subgroup analysis of PROMs was carried out between patients with an Insall-Salvati index ≤1.2 versus >1.2. The patellar tilt angle, lateral patellar displacement, and bisect offset ratio were measured pre- and postsurgery. Functional failures and complications were assessed. RESULTS Overall, 70 patients (72 knees) in the MPFL-R group and 58 patients (61 knees) in the MPFC-R group were included. Patient characteristics were comparable between the groups. At a minimum follow-up of 24 (mean, 50.6 ± 22.1) months, all PROMs were substantially improved (P < .001), without significant intergroup differences. The percentages of patients reaching the minimal clinically important difference were similar after MPFL-R and MPFC-R: 98.6% versus 93.4% (International Knee Documentation Committee), 97.2% versus 98.4% (Lysholm), 98.6% versus 100% (Kujala), and 77.8% versus 72.1% (Tegner). The subgroup analysis based on patellar height and the return-to-sport rates also suggested comparable results. Radiographic evaluation demonstrated significantly smaller lateral patellar displacements (P = .004) and bisect offset ratios (P < .001) but similar patellar tilt angles after MPFC-R. Four (5.6%) patients receiving MPFL-R and 2 (3.3%) patients receiving MPFC-R reported recurrence of functional instability, without statistically significant difference. CONCLUSIONS MPFC-R resulted in similar overall clinical and radiographic outcomes to MPFL-R in treating recurrent patellar dislocation. MPFC-R might not provide additional benefits for patients with an Insall-Salvati index >1.2. LEVEL OF EVIDENCE Level IV, therapeutic, retrospective cohort study.
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Affiliation(s)
- Fengyi Hu
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Cheng Wang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Yingying Du
- Peking University Health Science Center, Beijing, China
| | - Zejing Guo
- Peking University Health Science Center, Beijing, China
| | - Keying Zhang
- Peking University Health Science Center, Beijing, China
| | - Yong Ma
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Yuping Yang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Xi Gong
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Haijun Wang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Ping Liu
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China
| | - Weili Shi
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Beijing, China.
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Monaco E, Criseo N, Annibaldi A, Carrozzo A, Pagnotta SM, Cantagalli MR, Orlandi P, Daggett M. Medial Patellofemoral Ligament Reconstruction Using Gracilis Tendon Graft and "All Suture" Knotless Anchors for Patellar Fixation. Arthrosc Tech 2023; 12:e2329-e2334. [PMID: 38196870 PMCID: PMC10773230 DOI: 10.1016/j.eats.2023.08.002] [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] [Received: 05/11/2023] [Accepted: 08/03/2023] [Indexed: 01/11/2024] Open
Abstract
Patellar dislocation is a frequent sports-related knee injury. The primary restraint to lateral translation of patella is medial patellofemoral ligament. Several treatments for patella dislocation have been described in the literature. The purpose of this Technical Note is to describe the surgical technique for medial patellofemoral ligament reconstruction using gracilis tendon and 2 knotless soft anchors, avoiding patella tunneling.
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Affiliation(s)
- Edoardo Monaco
- Department of Orthopaedic Surgery, S. Andrea Hospital, "Sapienza" University of Rome, Italy
| | - Natale Criseo
- Department of Orthopaedic Surgery, S. Andrea Hospital, "Sapienza" University of Rome, Italy
| | - Alessandro Annibaldi
- Department of Orthopaedic Surgery, S. Andrea Hospital, "Sapienza" University of Rome, Italy
| | - Alessandro Carrozzo
- Department of Orthopaedic Surgery, S. Andrea Hospital, "Sapienza" University of Rome, Italy
| | - Susanna M Pagnotta
- Department of Orthopaedic Surgery, S. Andrea Hospital, "Sapienza" University of Rome, Italy
| | | | - Pierfrancesco Orlandi
- Department of Orthopaedic Surgery, S. Andrea Hospital, "Sapienza" University of Rome, Italy
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Leite CBG, Hinckel BB, Ribeiro GF, Giglio PN, Santos TP, Bonadio MB, Arendt E, Gobbi RG. Medial patellofemoral ligament reconstruction in skeletally immature patients without correction of bony risk factors leads to acceptable outcomes but higher failure rates. J ISAKOS 2023; 8:189-196. [PMID: 36924824 DOI: 10.1016/j.jisako.2023.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/29/2023] [Accepted: 02/25/2023] [Indexed: 03/15/2023]
Abstract
OBJECTIVES To report outcomes and re-dislocation rates of medial patellar stabilizers reconstruction without bone procedures for correction of anatomical risk factors for patellar instability in skeletally immature patients; to compare isolated medial patellofemoral ligament (MPFL) reconstruction to combined MPFL and medial patellotibial ligament (MPTL) reconstruction in this population. METHODS Patients with open physis and bone abnormalities including patella alta and/or increased tibial tubercle-trochlear groove (TT-TG) distance and/or trochlear dysplasia underwent MPFL reconstruction, either isolated or associated with MPTL reconstruction. Preoperative, 1-year follow-up and the latest follow-up (5 years minimum) data were collected. Radiological and clinical evaluations were conducted, with special attention to failure rate. Comparison of results from isolated MPFL and combined MPFL/MPTL reconstructions was performed. RESULTS Twenty-nine patients were included, 19 in the isolated MPFL group (median 14 years old; follow-up 5.8 ± 1.7 years) and 10 in the combined MPFL/MPTL group (median 13.5 years old; follow-up 5.2 ± 1.4 years). Kujala and Tegner scores increased over time, although without statistically significant differences between the two groups at the latest follow-up (p = 0.840 and p > 0.999, respectively). During follow-up, 5 of 19 (26.3%) isolated MPFL and 2 of 10 (20%) MPFL/MPTL reconstructions experienced recurrence of patellar dislocation (p > 0.999). Trochlear dysplasia type D (p = 0.028), knee rotation (p = 0.009) and lateral patellar tilt angle (p = 0.003) were associated with patellar instability recurrence. The isolated MPFL group showed increased laxity on physical exam at the latest follow-up compared to the 1-year follow-up (patellar glide test (p = 0.002), patellar tilt test (p = 0.042) and subluxation in extension (p = 0.019). This increased laxity was not observed in the MPFL/MPTL group (p > 0.999). Comparing both groups, the glide test was significantly better in the combined MPFL/MPTL group in comparison to the isolated MPFL reconstruction group at the latest follow-up (p = 0.021). CONCLUSION MPFL reconstruction in isolation or combined with MPTL reconstruction in skeletally immature patients with additional uncorrected anatomical patellofemoral abnormalities leads to acceptable clinical outcomes within a minimum of 5 years follow-up, although has a high failure rate of 24.1%. Addition of a MPTL reconstruction to the MPFL may result in decreased patellar laxity on physical exams, as demonstrated by better patellar glide test, patellar tilt test and subluxation in extension. LEVEL OF EVIDENCE Level III; retrospective cohort study.
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Affiliation(s)
- Chilan Bou Ghosson Leite
- Instituto de Ortopedia e Traumatologia, Hospital Das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 05403-010, Brazil; Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Betina Bremer Hinckel
- Department of Orthopaedic Surgery, William Beaumont Hospital, Royal Oak, MI 48180, USA.
| | - Gabriel Fernandes Ribeiro
- Instituto de Ortopedia e Traumatologia, Hospital Das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 05403-010, Brazil
| | - Pedro Nogueira Giglio
- Instituto de Ortopedia e Traumatologia, Hospital Das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 05403-010, Brazil
| | - Tarsis Padula Santos
- Instituto de Ortopedia e Traumatologia, Hospital Das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 05403-010, Brazil
| | - Marcelo Batista Bonadio
- Instituto de Ortopedia e Traumatologia, Hospital Das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 05403-010, Brazil
| | - Elizabeth Arendt
- Department of Orthopedic Surgery, University of Minnesota, Minneapolis, MN 55454, USA
| | - Riccardo Gomes Gobbi
- Instituto de Ortopedia e Traumatologia, Hospital Das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP 05403-010, Brazil
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Patel NB, Oak SR, Rogers K, Crawford EA. The Onset and Development of Patella Alta in Children With Patellar Instability. J Pediatr Orthop 2023:01241398-990000000-00273. [PMID: 37104788 DOI: 10.1097/bpo.0000000000002420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
BACKGROUND Patella alta is an anatomic risk factor for patellar instability in adolescents that is also linked to the risk factor of trochlear dysplasia. This study aims to determine the age of onset and age-related incidence of patella alta in a pediatric population of patients with patellar instability. We hypothesized that patellar height ratios would not increase with age, suggesting a congenital rather than the developmental origin of patella alta. METHODS A retrospective cross-sectional cohort of patients was collected with the following inclusion criteria: patients aged 5 to 18 who had a knee magnetic resonance imaging performed from 2000 to 2022 and the International Classification of Diseases code for patellar dislocation. Demographic information and details of the patellar instability episode(s) were collected with a chart review. Sagittal magnetic resonance imaging was used to measure Caton-Deschamps Index (CDI) and the Insall-Salvati Ratio (ISR) by 2 observers. Data were analyzed to assess for associations between patellar height ratios and age of the first dislocation and to assess if the proportion of patients categorized as having patella alta changed with age. RESULTS The 140 knees included in the cohort had an average age of 13.9 years (SD=2.40; range: 8-18) and were 55% female. Patella alta was present in 78 knees (55.7%) using CDI>=1.2 and in 59 knees (42.1%) using ISR>=1.3. The earliest age patella alta was observed was at age 8 using CDI>=1.2 and age 10 using ISR>=1.3. There were no statistically significant associations between CDI and age without adjustment (P=0.14) nor after adjustment for sex and body mass index (P=0.17). The proportion of knees above the CDI threshold for patella alta to the knees below the cutoff did not show a significant change with age (P=0.09). CONCLUSIONS Patella alta, as defined by CDI, is seen in patients as young as 8 years old. Patellar height ratios do not change with age in patients with patellar dislocation, suggesting that patella alta is established at a young age rather than developing during the adolescent years. LEVEL OF EVIDENCE Level III-diagnostic, cross-sectional.
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Affiliation(s)
| | - Sameer R Oak
- University of Michigan Orthopaedic Surgery Department
| | - Kelly Rogers
- University of Michigan Orthopaedic Surgery Department
| | - Eileen A Crawford
- University of Michigan Orthopaedic Surgery Department, Ann Arbor, MI
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Drapeau-Zgoralski V, Swift B, Caines A, Kerrigan A, Carsen S, Pickell M. Lateral Patellar Instability. J Bone Joint Surg Am 2023; 105:397-409. [PMID: 36728086 DOI: 10.2106/jbjs.22.00756] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
➤ Patellar instability represents a common problem with an evolving understanding and multifactorial pathoetiology. Treatment plans should be based on the identification of contributing anatomical factors and tailored to each individual patient. ➤ Risks for recurrent instability are dependent on several patient-specific factors including patella alta, increased tibial tubercle-to-trochlear groove (TT-TG) distance, trochlear dysplasia, younger skeletal age, and ligamentous laxity. ➤ Cartilage or osteochondral lesions and/or fractures are commonly observed in first-time patellar dislocation, and magnetic resonance imaging (MRI) should be strongly considered. Advanced imaging modalities, such as computed tomography (CT) or MRI, should also be obtained preoperatively to identify predisposing factors and guide surgical treatment. ➤ Medial patellofemoral ligament (MPFL) reconstruction with anatomical femoral tunnel positioning is associated with lower recurrence rates compared with MPFL repair and has become a common and successful reconstructive surgical option in cases of instability. ➤ Lateral retinacular tightness can be addressed with lateral retinacular release or lengthening, but these procedures should not be performed in isolation. ➤ Tibial tubercle osteotomy is a powerful reconstructive tool in the setting of underlying skeletal risk factors for instability and can be of particular benefit in the presence of increased TT-TG distance (>20 mm), and/or in the setting of patella alta. ➤ The indications for trochleoplasty are still developing along with the clinical evidence, but trochleoplasty may be indicated in some cases of severe trochlear dysplasia. Several surgical techniques have indications in specific clinical scenarios and populations, and indications, risks, and benefits to each are progressing with our understanding. ➤ Combined femoral derotational osteotomy and MPFL reconstruction can be considered for patients with a femoral anteversion angle of >30° to improve patient outcomes and reduce recurrence rates.
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Affiliation(s)
| | - Brendan Swift
- Division of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Andrew Caines
- Division of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Alicia Kerrigan
- Division of Orthopaedic Surgery, The Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Sasha Carsen
- Division of Orthopaedic Surgery, The Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Michael Pickell
- Division of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada
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Jiang J, Yi Z, Li J, Liu Y, Xia Y, Wu M. Medial Patellofemoral Ligament Reconstruction is Preferred to Repair or Reefing for First-Time Patellar Dislocation: A Systematic Review and Meta-analysis. Indian J Orthop 2023; 57:177-188. [PMID: 36777132 PMCID: PMC9880132 DOI: 10.1007/s43465-022-00770-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 10/21/2022] [Indexed: 11/07/2022]
Abstract
Purpose The purpose of this systematic review aimed to investigate the clinical outcome of medial patellofemoral ligament (MPFL) reconstruction, MPFL repair and medial reefing for patients with first-time patellar dislocation. Methods Databases of PubMed, EMBASE, Cochrane Library and Web of Science were searched up to May 8, 2022. Only articles treating first-time patellar dislocation with MPFL reconstruction, MPFL repair and medial reefing were included in the analysis. Eligible identification, data extraction, quality assessment and statistical analysis were performed by two independent reviewers. The primary outcome measures were the incidences of postoperatively redislocation and reoperation. The second outcomes were the Kujala functional score and complications (including infection, osteoarthritis, and loss of range of motion). Results Twenty-two studies involving 668 patients met the inclusion criteria. Of which, four studies involving 126 patients were in MPFL reconstruction group, ten studies involving 220 patients in MPFL repair group and 9 studies involving 322 patients in medial reefing group. Our results showed that the MPFL reconstruction (1.8%, 95% CI - 0.5 to 4.0%) had a significantly lower rate of postoperative redislocation and reoperation rate than the MPFL repair (15.4%, 95% CI 5.2-25.7%) and medial reefing (18.0%, 95% CI 9.3-26.7%). Besides, no significant differences were found in the Kujala score and complication rate among the three treatments. Conclusion The available evidence demonstrated that MPFL reconstruction could achieve significantly lower redislocation rate and reoperation rate than MPFL repair and medial reefing after first-time patella dislocation. Furthermore, there was not enough evidence to reveal that MPFL reconstruction provided better functional outcome compared with MPFL repair and medial reefing. MPFL reconstruction is a preferred surgical treatment for patients with first-time patellar dislocation. Level of Evidence Level IV, systematic review of Level I-IV.
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Affiliation(s)
- Jin Jiang
- Department of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730030 Gansu China
| | - Zhi Yi
- Department of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730030 Gansu China
| | - Junmin Li
- Department of Pharmacy, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730030 Gansu China
| | - Yan Liu
- School of Pharmacy, Lanzhou University, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730030 Gansu China
| | - Yayi Xia
- Department of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730030 Gansu China
| | - Meng Wu
- Department of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730030 Gansu China
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Hu F, Shi W, Wang H, Wang C. A Novel Technique of Arthroscopic Femoral Tunnel Placement during Medial Patellofemoral Ligament Reconstruction for Recurrent Patellar Dislocation. J Clin Med 2023; 12:jcm12020680. [PMID: 36675609 PMCID: PMC9860788 DOI: 10.3390/jcm12020680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/06/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
Recurrent patellar dislocation is a commonly encountered patellofemoral disease. Prompt surgical intervention is indicated for recurrent dislocation to restore patellofemoral stability. As one of the most preferred procedures, medial patellofemoral ligament (MPFL) reconstruction has been implemented on a large scale. Femoral tunnel placement remains a crucial technical issue during MPFL reconstruction and is critical to ensure the isometry and proper tension of the graft. Currently, visual-palpatory anatomic landmarks and fluoroscopy-guided radiographic landmarks comprise the main approaches to intraoperative femoral tunnel positioning. However, the accuracy of both methods has been questioned. This article introduces an arthroscopic femoral tunnel placement technique. Apart from traditional anteromedial and anterolateral portals, two auxiliary arthroscopic portals are specially designed. The adductor tubercle, the medial epicondyle and the posterior edge are selected as main anatomic landmarks and are directly visualized in sequence under arthroscope. The relative position between the femoral attachment of the MPFL and the three landmarks is measured on preoperative three-dimensional computed tomography, providing semi-quantified reference for intraoperative localization. This technique achieves minimally invasive tunnel placement without X-ray exposure, and especially suits obese patients for whom palpatory methods are difficult to perform.
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Sherman SL, Rund JM, Welsh JW, Ray T, Worley JR, Oladeji LO, Gray AD, Hinckel BB. Medial Patellofemoral Ligament Reconstruction in Obese Patients Results in Low Complication Rates and Improved Subjective Outcomes. Arthrosc Sports Med Rehabil 2023; 5:e257-e262. [PMID: 36866317 PMCID: PMC9971998 DOI: 10.1016/j.asmr.2022.11.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/10/2022] [Indexed: 01/06/2023] Open
Abstract
Purpose To compare outcomes, activity scores, and complication rates of obese and non-obese patients undergoing medial patellofemoral ligament (MPFL) reconstruction. Methods A retrospective review identified patients undergoing MPFL reconstruction for recurrent patellofemoral instability. Patients were included if they had undergone MPFL reconstruction and had follow-up for a minimum of 6 months. Patients were excluded if they underwent surgery less than 6 months earlier, had no outcome data recorded, or underwent concomitant bony procedures. Patients were divided into 2 groups based on body mass index (BMI): BMI of 30 or greater and BMI less than 30. Presurgical and postsurgical patient-reported outcomes including Knee Injury and Osteoarthritis Outcome Score (KOOS) domains and the Tegner score were collected. Complications requiring reoperation were recorded. P < .05 was defined as a statistically significant difference. Results A total of 55 patients (57 knees) were included. There were 26 knees with a BMI of 30 or greater and 31 knees with a BMI less than 30. There were no differences in patient demographic characteristics between the 2 groups. Preoperatively, no significant differences were found in KOOS subscores or Tegner scores (P = .21) between groups. At minimum 6-month follow-up (range, 6.1-70.5 months), patients with a BMI of 30 or greater showed statistically significant improvements in the KOOS Pain, Activities of Daily Living, Symptoms, and Sport/Recreation subscores. Patients with a BMI less than 30 showed a statistically significant improvement in the KOOS Quality of Life subscore. The group with a BMI of 30 or greater had significantly lower KOOS Quality of Life (33.34 ± 19.10 vs 54.47 ± 28.00, P = .03) and Tegner (2.56 ± 1.59 vs 4.78 ± 2.68, P = .05) scores. Complication rates were low, with 2 knees (7.69%) requiring reoperation in the cohort with a BMI of 30 or greater and 4 knees (12.90%) requiring reoperation in the cohort with a BMI less than 30, including 1 reoperation for recurrent patellofemoral instability (P = .68). Conclusions In this study, MPFL reconstruction in obese patients was safe and effective, with low complication rates and improvements in most patient-reported outcomes. Compared with patients with a BMI less than 30, obese patients had lower quality-of-life and activity scores at final follow-up. Level of Evidence Level III, retrospective cohort study.
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Affiliation(s)
- Seth L. Sherman
- Department of Orthopaedic Surgery, Stanford University, Palo Alto, California, U.S.A.,Address correspondence to Seth L. Sherman, M.D., 450 Broadway Pavilion A, Redwood City, CA 94063, U.S.A.
| | - Joseph M. Rund
- Department of Orthopaedic Surgery, University of Iowa, Iowa City, Iowa, U.S.A
| | - John W. Welsh
- Department of Anesthesiology, Virginia Mason Medical Center, Seattle, Washington, U.S.A
| | - Taylor Ray
- Department of Orthopaedic Surgery, Stanford University, Palo Alto, California, U.S.A
| | - John R. Worley
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri, U.S.A
| | - Lasun O. Oladeji
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri, U.S.A
| | - Aaron D. Gray
- Department of Orthopaedic Surgery, University of Missouri, Columbia, Missouri, U.S.A
| | - Betina B. Hinckel
- Oakland University, Rochester, Michigan, U.S.A.,Department of Orthopaedic Surgery, William Beaumont Hospital, Royal Oak, Michigan, U.S.A
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Arthroscopic Anatomical Double-Bundle Medial Patellofemoral Complex Reconstruction Improves Clinical Outcomes in Treating Recurrent Patellar Dislocation Despite Trochlear Dysplasia, Elevated Tibial Tubercle-Trochlear Groove Distance, and Patellar Alta. Arthroscopy 2023; 39:102-111. [PMID: 35840069 DOI: 10.1016/j.arthro.2022.06.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 06/25/2022] [Accepted: 06/26/2022] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate the clinical outcomes of arthroscopically assisted double-bundle medial patellofemoral complex reconstruction (MPFC-R). METHODS A retrospective review was carried out among adult patients who experienced at least 2 patellar dislocations and underwent primary arthroscopically assisted MPFC-R between January 2014 and November 2019. Dejour classification, tibial tubercle-trochlear groove (TT-TG) distance, and patellar height (with Insall-Salvati index) were measured. Pre- and postoperative patellar tilt were compared. Information on outcome scores, ability to return to sports, postoperative recurrent dislocations, and complications was recorded. RESULTS A total of 42 MPFC-Rs in 39 patients were included. Mean age at surgery was 22.2 ± 7.6 years; 69.2% of patients were female. Mean follow-up was 47.3 ± 20.2 months. Seventy-four percent of cases had Dejour B (19.0%), C (33.3%), and D (21.4%) trochlear dysplasia; mean TT-TG distance was 19.6 ± 3.5 mm, and mean Insall-Salvati index was 1.21 ± 0.17. Mean patellar tilt decreased from 27.6 ± 11.6° to 9.4 ± 6.5° (P < .001). All patients had statistically significant (P < .001) improvement in mean International Knee Documentation Committee (IKDC) (44.9 ± 18.2 to 87.5 ± 6.9), Lysholm (61.4 ± 16.6 to 94.1 ± 6.4), Kujala (56.0 ± 16.8 to 92.9 ± 5.3), and Tegner score (2.7 ± 1.3 to 4.6 ± 1.4). The majority of patients (96.9%) returned to sports, with 90.3% returning to the same or greater level of activity. No postoperative dislocations or subluxations were reported. CONCLUSIONS Arthroscopically assisted double-bundle MPFC-R is a promising procedure to treat recurrent patellar instability at 2- to 7-year mid-term follow-up, despite the presence of trochlear dysplasia, elevated TT-TG distance and patellar alta. The improvement of IKDC score exceeded the minimal clinically important difference in 95.2% patients, and 66.7% surpassed the patient acceptable symptomatic state based on postoperative IKDC score with no redislocations being reported at latest follow-up. LEVEL OF EVIDENCE Level IV, case series, retrospective.
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Frings J, Dust T, Meyer J, Krause M, Frosch KH, Adam G, Henes FO, Spink C, Maas KJ. The Influence of Surgical Realignment Procedures on Dynamic Patellar Tracking: A Dynamic Magnetic Resonance Imaging-Controlled Feasibility Study. Diagnostics (Basel) 2022; 12:diagnostics12112761. [PMID: 36428821 PMCID: PMC9689423 DOI: 10.3390/diagnostics12112761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
Persisting patellar maltracking following surgical realignment often remains unseen. The aim of this study was to analyze the effects of realignment procedures on patellofemoral kinematics in patients with patellofemoral instability (PFI) and patellofemoral maltracking (PM) by using dynamic magnetic resonance imaging (MRI). Patients planned for surgical patellar realignment due to PFI and a clinically and radiologically apparent PM between December 2019 and May 2022 were included. Patients without PM, limited range of motion, joint effusion, or concomitant injuries were excluded. Dynamic mediolateral translation (dMPT) and patella tilt (dPT) were measured preoperatively and three months postoperatively. In 24 patients (7 men, 17 women; mean age 23.0 years), 10 tibial tubercle transfers, 5 soft tissue patella tendon transfers, 6 trochleoplasties, 3 lateral lengthenings, 1 varizating distal femoral osteotomy (DFO), and 1 torsional DFO were performed. At final follow-up, dMPT (from 10.95 ± 5.93 mm to 4.89 ± 0.40 mm, p < 0.001) and dPT (from 14.50° ± 10.33° to 8.44° ± 7.46°, p = 0.026) were significantly improved. All static radiological parameters were corrected to physiological values. Surgical patellar realignment contributed to the significant improvement of patellofemoral kinematics, with an approximation to normal values. The postoperative application of dynamic MRI allowed for a quantification of the performed correction, allowing for a postoperative control of success.
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Affiliation(s)
- Jannik Frings
- Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
- Correspondence:
| | - Tobias Dust
- Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Jennifer Meyer
- Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Matthias Krause
- Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Karl-Heinz Frosch
- Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
- Department of Trauma Surgery, Orthopaedics and Sports Traumatology, BG Hospital Hamburg, 21033 Hamburg, Germany
| | - Gerhard Adam
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Frank Oliver Henes
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
- Department of Diagnostic and Interventional Radiology, BG Hospital Hamburg, 21033 Hamburg, Germany
| | - Clemens Spink
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Kai-Jonathan Maas
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
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12
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Žlak N, Kacin A, Martinčič D, Drobnič M. Age, body mass index, female gender, and patellofemoral cartilage degeneration predict worse patient outcome after patellofemoral instability surgery. Knee Surg Sports Traumatol Arthrosc 2022; 30:3751-3759. [PMID: 35524797 DOI: 10.1007/s00167-022-06986-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 04/11/2022] [Indexed: 12/26/2022]
Abstract
PURPOSE To evaluate predicting factors for patient-reported outcomes and revision interventions following surgical treatment of patients with patellofemoral instability. METHODS From a prospective database at the university Orthopedic Department, 138 knees from 116 patients who underwent patellofemoral instability surgery (2012-2019) were enrolled in a retrospective analysis: 34 cases of isolated MPFLrec; 92 cases of MPFLrec plus tibial tuberosity transfer; and 12 cases of MPFLrec plus trochleoplasty. Patient-reported outcome measures were recorded for knee-specific function (KOOS), general quality of life (EQ-5D), and activity level (Tegner scale). Post-operative revision interventions were also actively recorded. As potential predicting factors, patient demographic (gender, age, BMI) and radiographic (pre-operative: patellar height and tilt, tibial tuberosity-trochlear groove distance, trochlear dysplasia, knee osteoarthritis; post-operative: MPFL insertion point; intra-operative: isolated vs. combined procedures, chondropenia severity score) parameters were analyzed using multivariate linear regression models. RESULTS With median follow-up of 4.4 (1.0-8.9) years, all patient-reported outcome measures had significantly improved from pre-operative levels: KOOS cumulative, from 71 (15) to 78 (16); EQ-5D, from 0.68 (0.20) to 0.78 (0.21); and Tegner activity scale, from 3 (0-10) to 4 (0-10). No patellofemoral instability revision procedures were performed. One-fifth (27/138) of the operated knees required second surgical interventions, predominately due to hardware or arthrofibrosis. Patients who required post-operative knee manipulation under anesthesia or arthroscopic debridement showed lower post-operative improvement for KOOS cumulative and EQ-5D. Age, BMI, patellofemoral knee osteoarthritis, and shorter follow-up time revealed significant negative correlations to some of the post-operative KOOS subscales. Age was negatively correlated to post-operative EQ-5D, while post-operative Tegner activity scale was negatively correlated to female gender and patellofemoral chondropenia severity score. Femoral MPFL insertion point revealed no association with any outcome measures. CONCLUSION Patellofemoral instability surgery for isolated or combined MPFLrec is safe and substantially improves knee function and patient quality of life and activity levels. Serious adverse events are rare, with no recurrent patellofemoral instability. Patients who required post-operative knee manipulation or arthroscopic debridement showed less improvement in subjective measures of treatment outcomes. Older age, higher BMI, worse pre-operative patellofemoral cartilage status, and female gender had negative effects on outcome. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Nik Žlak
- Department of Orthopedic Surgery, University Medical Centre Ljubljana, Zaloška cesta 9, 1000, Ljubljana, Slovenia. .,Chair of Orthopedics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia.
| | - Alan Kacin
- Department of Physiotherapy, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
| | - David Martinčič
- Department of Orthopedic Surgery, University Medical Centre Ljubljana, Zaloška cesta 9, 1000, Ljubljana, Slovenia.,Chair of Orthopedics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Matej Drobnič
- Department of Orthopedic Surgery, University Medical Centre Ljubljana, Zaloška cesta 9, 1000, Ljubljana, Slovenia.,Chair of Orthopedics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
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Shatrov J, Colas A, Fournier G, Batailler C, Servien E, Lustig S. Tibial tuberosity osteotomy and medial patellofemoral ligament reconstruction for patella dislocation following total knee arthroplasty: A double fixation technique. SICOT J 2022; 8:23. [PMID: 35699459 PMCID: PMC9196027 DOI: 10.1051/sicotj/2022023] [Citation(s) in RCA: 2] [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: 02/04/2022] [Accepted: 05/13/2022] [Indexed: 11/24/2022] Open
Abstract
Introduction: Patella instability post total knee arthroplasty (TKA) is a rare complication. Tibial tubercle osteotomy (TTO) with medial patellofemoral ligament reconstruction (MPFLr) has not been well described for this indication. This paper describes a surgical technique to address the unique challenges faced when performing TTO and MPFLr in the prosthetic knee. Technique: This technique and video describe a TTO and MPFLr via an extensile incision and medial sub-vastus approach. A 6 cm long TTO is performed, if indicated, to medialise the extensor mechanism up to 1 cm and fixed with ×2 4.5 mm cortical screws. For the MPFLr, a quadriceps tendon autograft is utilized, with the natural insertion to the superior pole of the patella being left undisturbed. The graft is first attached with an interference screw and then reinforced with an endobutton to provide crucial cortical fixation to overcome the problem of low bone mineral density encountered in this area of the femur following TKA. Results: Five patients underwent MPFLr using the described technique. No failures or recurrence of instability occurred at the last follow-up. Pre-operative mean patella tilt and shift were 44° and 3.5 cm, respectively. Post-operatively, mean tilt and shift were 4.1° and 0.4 cm, respectively. There was one wound dehiscence requiring surgical debridement and closure. Conclusion: This paper describes a surgical technique to perform a TTO and MPFLr for patella instability post-TKA. The described method highlights key adaptations to address the unique challenges in this patient population.
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Affiliation(s)
- Jobe Shatrov
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
| | - Antoine Colas
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
| | - Gaspard Fournier
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France
| | - Cécile Batailler
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France - Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622 Lyon, France
| | - Elvire Servien
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France - Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622 Lyon, France
| | - Sébastien Lustig
- Orthopaedics Surgery and Sports Medicine Department, FIFA Medical Center of Excellence, Croix-Rousse Hospital, Lyon University Hospital, 103 Grande Rue de la Croix Rousse, 69004 Lyon, France - Univ Lyon, Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, 69622 Lyon, France
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Shimodaira H, Tensho K, Koyama S, Iwaasa T, Kumaki D, Horiuchi H, Takahashi J. Simultaneous Medial Patellofemoral Ligament and Medial Quadriceps Tendon-Femoral Ligament Reconstructions Using an Artificial Ligament for Lateral Patella Instability. Arthrosc Tech 2022; 11:e1021-e1026. [PMID: 35782857 PMCID: PMC9244637 DOI: 10.1016/j.eats.2022.02.007] [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] [Received: 12/03/2021] [Accepted: 02/05/2022] [Indexed: 02/03/2023] Open
Abstract
Recent studies on the detailed anatomy of the medial patellar stabilizer have revealed that the medial patellofemoral ligament (MPFL) not only attaches to the patella but also has fibers that attach to the quadriceps muscle, known as the medial quadriceps tendon femoral ligament (MQTFL). Reconstruction of the medial stabilizer for patellar dislocation that includes both the MPFL and MQTFL may achieve better anatomical and physiological correction. In this Technical Note, we will describe a simultaneous reconstruction technique of the MPFL and MQTFL for patellar dislocation using an artificial ligament.
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Affiliation(s)
| | - Keiji Tensho
- Address correspondence to Keiji Tensho, M.D., Ph.D., Department of Orthopedic Surgery, Shinshu University School of Medicine, Asahi 3-1-1, Matsumoto, 390-8621, Japan.
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15
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Watson R, Sullivan B, Stone AV, Jacobs C, Malone T, Heebner N, Noehren B. Lateral Patellar Dislocation: A Critical Review and Update of Evidence-Based Rehabilitation Practice Guidelines and Expected Outcomes. JBJS Rev 2022; 10:01874474-202205000-00004. [PMID: 35748823 DOI: 10.2106/jbjs.rvw.21.00159] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
» Nonoperative treatment of a lateral patellar dislocation produces favorable functional results, but as high as 35% of individuals experience recurrent dislocations. » Medial patellofemoral ligament reconstruction is an effective treatment to prevent recurrent dislocations and yield excellent outcomes with a high rate of return to sport. » Both nonoperative and postoperative rehabilitation should center on resolving pain and edema, restoring motion, and incorporating isolated and multijoint progressive strengthening exercises targeting the hip and knee. » Prior to return to sports, both functional and isolated knee strength measurements should be used to determine leg symmetry strength and to utilize patient-reported outcome measures to assess the patient's perceived physical abilities and patellofemoral joint stability.
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Affiliation(s)
- Richard Watson
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky
| | - Breanna Sullivan
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Austin V Stone
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Cale Jacobs
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Terry Malone
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky
| | - Nicholas Heebner
- Department of Athletic Training, University of Kentucky, Lexington, Kentucky
| | - Brian Noehren
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky
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Giesler P, Baumann FA, Weidlich D, Karampinos DC, Jung M, Holwein C, Schneider J, Gersing AS, Imhoff AB, Bamberg F, Jungmann PM. Patellar instability MRI measurements are associated with knee joint degeneration after reconstruction of the medial patellofemoral ligament. Skeletal Radiol 2022; 51:535-547. [PMID: 34218322 PMCID: PMC8763754 DOI: 10.1007/s00256-021-03832-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/24/2021] [Accepted: 05/24/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To qualitatively and quantitatively evaluate the 2-year magnetic resonance imaging (MRI) outcome after MPFL reconstruction at the knee and to assess MRI-based risk factors that predispose for inferior clinical and imaging outcomes. MATERIALS AND METHODS A total of 31 patients with MPFL reconstruction were included (22 ± 6 years, 10 female). MRI was performed preoperatively in 21/31 patients. Two-year follow-up MRI included quantitative cartilage T2 and T1rho relaxation time measurements at the ipsilateral and contralateral knee. T2relative was calculated as T2patellofemoral/T2femorotibial. Morphological evaluation was conducted via WORMS scores. Patellar instability parameters and clinical scores were obtained. Statistical analyses included descriptive statistics, t-tests, multivariate regression models, and correlation analyses. RESULTS Two years after MPFL reconstruction, all patellae were clinically stable. Mean total WORMS scores improved significantly from baseline to follow-up (mean difference ± SEM, - 4.0 ± 1.3; P = 0.005). As compared to patients with no worsening of WORMS subscores over time (n = 5), patients with worsening of any WORMS subscore (n = 16) had lower trochlear depth, lower facetal ratio, higher tibial-tuberosity to trochlear groove (TTTG) distance, and higher postoperative lateral patellar tilt (P < 0.05). T2relative was higher at the ipsilateral knee (P = 0.010). T2relative was associated with preoperatively higher patellar tilt (P = 0.021) and higher TTTG distance (P = 0.034). TTTG distance, global T2 values, and WORMS progression correlated with clinical outcomes (P < 0.05). CONCLUSION MPFL reconstruction is an optimal treatment strategy to restore patellar stability. Still, progressive knee joint degeneration and patellofemoral cartilage matrix degeneration may be observed, with patellar instability MRI parameters representing particular risk factors.
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Affiliation(s)
- Paula Giesler
- Department of Diagnostic and Interventional Radiology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Strasse 55, 79106 Freiburg, Germany
| | - Frederic A. Baumann
- Clinical and Interventional Angiology, University Hospital of Zurich, University of Zurich, Raemistrasse 100, 8091 Zurich, Switzerland
| | - Dominik Weidlich
- Department of Diagnostic and Interventional Radiology, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Dimitrios C. Karampinos
- Department of Diagnostic and Interventional Radiology, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Matthias Jung
- Department of Diagnostic and Interventional Radiology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Strasse 55, 79106 Freiburg, Germany
| | - Christian Holwein
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Julia Schneider
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Alexandra S. Gersing
- Department of Diagnostic and Interventional Radiology, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
- Department of Neuroradiology, University Hospital, LMU Munich, Marchioninistraße 15, 81377 Munich, Germany
| | - Andreas B. Imhoff
- Department of Orthopaedic Sports Medicine, Technical University of Munich, Ismaninger Strasse 22, 81675 Munich, Germany
| | - Fabian Bamberg
- Department of Diagnostic and Interventional Radiology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Strasse 55, 79106 Freiburg, Germany
| | - Pia M. Jungmann
- Department of Diagnostic and Interventional Radiology, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Hugstetter Strasse 55, 79106 Freiburg, Germany
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17
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Medial patellofemoral ligament reconstruction is superior to active rehabilitation in protecting against further patella dislocations. Knee Surg Sports Traumatol Arthrosc 2022; 30:3428-3437. [PMID: 35347375 PMCID: PMC9464184 DOI: 10.1007/s00167-022-06934-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 03/04/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Isolated reconstruction of the medial patellofemoral ligament (MPFL-R) has become the predominant stabilizing procedure in the treatment of recurrent lateral patellar dislocation (LPD). To minimize the risk of re-dislocations, isolated MPFL-R is recommended in patients with no significant trochlea dysplasia and tibial tuberosity trochlear groove distance < 20 mm on computed tomography (CT). Incidentally, these criteria are the same that are used to identify first time LPD patients where conservative treatment is recommended. The purpose of this study was therefore to compare MPFL-R with active rehabilitation for patients with recurrent LPD (RLPD) in absence of the above mentioned underlying anatomical high-risk factors for further patellar dislocations. METHODS RLPD-patients aged 12-30 without underlying anatomical high-risk factors for further LPD were randomized into treatment either with isolated MPFL-R or active rehabilitation provided and instructed by a physiotherapist. All patients underwent diagnostic arthroscopy for concomitant problems. The main outcome measure was persistent patellar instability at 12 months. Knee function at baseline and 12 months was asses using the following patient reported outcomes measures (PROMS); KOOS, Kujala, Cincinnati knee rating, Lysholm score and Noyes sports activity rating scale. RESULTS Between 2010 and 2019, 61 patients were included in the study (MPFL-R, N = 30, Controls, N = 31). Persistent patellar instability at 12 months was reported by 13 (41.9%) controls, versus 2 (6.7%) in the MPFL-group (RR 6.3 (95% CI 1.5-25.5). No statistically significant differences in activity level were found between the MPFL-group and the Controls at neither baseline nor follow up. The patients with persistent instability at 12 months did not score significantly lower on any of the PROMs compared to their stable peers, regardless of study group. CONCLUSION Patients with recurrent patellar dislocations have a six-fold increased risk of persistent patellar instability if treated with active rehabilitation alone, compared to MPFL-R in combination with active rehabilitation, even in the absence of significant anatomical risk factors. Active rehabilitation of the knee without MPFL-R improves patient reported knee function after one year, but does not protect against persistent patellar instability.
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18
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Allahabadi S, Pandya NK. Allograft Medial Patellofemoral Ligament Reconstruction in Adolescent Patients Results in a Low Recurrence Rate of Patellar Dislocation or Subluxation at Midterm Follow-Up. Arthroscopy 2022; 38:128-138. [PMID: 34000323 DOI: 10.1016/j.arthro.2021.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/14/2021] [Accepted: 05/06/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE To evaluate rates of recurrent instability in adolescent patients with medial patellofemoral ligament (MPFL) reconstruction with allograft and associations of anatomic risk factors with complications. METHODS A retrospective review identified patients of a single surgeon who underwent MPFL reconstruction with allograft for recurrent patellar instability with minimum 2-year follow-up. Surgical management was recommended after a minimum 6 weeks of nonoperative management and included MPFL reconstruction with gracilis allograft using a double-bundle technique. Preoperative radiographs were evaluated to assess physeal closure, lower-extremity alignment, trochlear morphology, and Insall-Salvati and Caton-Deschamps ratios. Magnetic resonance images were reviewed to evaluate the MPFL, trochlear morphology, and tibial tubercle trochlear groove distance (TT-TG). Descriptive statistics were used to characterize data. The primary outcome was recurrent instability. RESULTS 20 patients (24 knees; 18 knees in 14 females and 6 knees in 6 males; average age 15.7 years; range 11.5 to 19.6) underwent MPFL reconstruction with allograft (mean ± standard deviation follow-up 5.2 ± 1.7 years; range 2.2 to 8.1). Physes were open in 9 knees. The Insall-Salvati ratio was 1.09 ± 0.16, and the Caton-Deschamps index was 1.17 ± 0.15. Preoperatively, 19 patients were noted to have trochlear dysplasia, and TT-TG was 15.3 ± 3.9 mm. Three of 4 knees (16.7%) with non-hardware-related complications had open physes: 3 (12.5%) had recurrent instability, 2 of which underwent subsequent operation, and 1 sustained a patella fracture after a fall, requiring open reduction and internal fixation. The average Insall-Salvati ratio of these 4 patients was 1.21 ± 0.20, Caton-Deschamps index was 1.18 ± 0.17, and TT-TG was 17.5 ± 3.3 mm, none of which were statistically different from the group without complications. There were no clinically noted growth disturbances postoperatively. CONCLUSIONS MPFL reconstruction using allograft tissue may be performed safely in the pediatric and adolescent population with good outcomes at midterm follow-up, few complications, and a low rate of recurrent instability. LEVEL OF EVIDENCE IV, case series.
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Affiliation(s)
- Sachin Allahabadi
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, U.S.A
| | - Nirav K Pandya
- Department of Orthopaedic Surgery, Benioff Children's Hospital Oakland, University of California, San Francisco, San Francisco, California, U.S.A..
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Abstract
Patellar instability is one of the most prevalent knee disorders, with dislocations occurring in 5 to 43 cases per 10,000 annually. Traumatic patellar dislocation can result in significant morbidity and is associated with patellofemoral chondral injuries and fractures, medial soft tissue disruption, pain, and reduced function, and can lead to patellofemoral osteoarthritis. Chronic and recurrent instability can lead to deformation and incompetence of the medial soft tissue stabilizers. Despite recent gains in understanding the pathoanatomy of this disorder, the management of patients with this condition is complex and remains enigmatic.
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Liu Z, Yi Q, He L, Yao C, Zhang L, Lu F, Zhang X, Wu M, Geng B, Xia Y, Jiang J. Comparing Nonoperative Treatment, MPFL Repair, and MPFL Reconstruction for Patients With Patellar Dislocation: A Systematic Review and Network Meta-analysis. Orthop J Sports Med 2021; 9:23259671211026624. [PMID: 34604425 PMCID: PMC8485172 DOI: 10.1177/23259671211026624] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 02/28/2021] [Indexed: 12/03/2022] Open
Abstract
Background: Medial patellofemoral ligament (MPFL) reconstruction, MPFL repair, and
nonoperative treatment are important treatments for patients with patellar
dislocation. However, it is unclear which treatment leads to better
outcomes. Purpose: To determine the efficacy and safety of the 3 treatments in the treatment of
patellar dislocation and compare the effect of MPFL reconstruction with MPFL
repair, MPFL reconstruction with nonoperative treatment, and MPFL repair
with nonoperative treatment. Study Design: Systematic review; Level of evidence, 3. Methods: The PubMed, Web of Science, Cochrane Library, Embase, CNKI (China National
Knowledge Infrastructure), and Wanfang databases were searched from
inception to December 2020. Included were clinical studies that described
the efficacy and safety of 2 of the 3 treatments, studies directly comparing
the clinical effects of the 2 operative techniques, or studies comparing the
effects of reconstruction or repair with nonoperative treatment. Two
reviewers independently extracted data and assessed the quality of the
included studies with the Cochrane risk-of-bias tools. The outcomes
evaluated were postoperative redislocation rate, revision rate,
complications, and Kujala score. We used traditional direct pairwise
meta-analysis as well as network meta-analysis for comprehensive efficacy of
all 3 treatment measures. Results: Twelve studies were included: 5 compared MPFL reconstruction with MPFL
repair, 2 compared MPFL reconstruction with nonoperative treatment, and 5
compared MPFL repair with nonoperative treatment. The risk of bias was
serious in 4, moderate in 4 and low in 4 articles. MPFL reconstruction led
to significantly reduced redislocation and improved Kujala scores compared
with MPFL repair and nonoperative treatment. MPFL repair led to reduced
redislocation rates compared with nonoperative treatment but did not show an
obvious benefit in primary dislocations. There was no significant difference
among the 3 treatments in terms of revision rate and incidence of
complications, although we found that treatment-related complications were
least likely to occur in nonoperative treatment. Conclusion: The results of this review indicate that MPFL reconstruction decreases
recurrent dislocation compared with MPFL repair or nonoperative treatment,
but it has a higher possibility of complications. MPFL repair resulted in
less postoperative redislocation than nonoperative treatment but did not
show an obvious benefit in primary dislocation.
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Affiliation(s)
- Zhongcheng Liu
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Qiong Yi
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Liangzhi He
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Changjiang Yao
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Lanfang Zhang
- Department of Neurosurgery, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Fan Lu
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Xiaohui Zhang
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Meng Wu
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Bin Geng
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Yayi Xia
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
| | - Jin Jiang
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, Lanzhou, Gansu, PR China
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Palmer RC, Podeszwa DA, Wilson PL, Ellis HB. Coronal and Transverse Malalignment in Pediatric Patellofemoral Instability. J Clin Med 2021; 10:jcm10143035. [PMID: 34300200 PMCID: PMC8307206 DOI: 10.3390/jcm10143035] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 01/08/2023] Open
Abstract
Patellofemoral instability (PFI) encompasses symptomatic patellar instability, patella subluxations, and frank dislocations. Previous studies have estimated the incidence of acute patellar dislocation at 43 per 100,000 children younger than age 16 years. The medial patellofemoral ligament (MPFL) complex is a static soft tissue constraint that stabilizes the patellofemoral joint serving as a checkrein to prevent lateral displacement. The causes of PFI are multifactorial and not attributed solely to anatomic features within the knee joint proper. Specific anatomic features to consider include patella alta, increased tibial tubercle–trochlear groove distance, genu valgum, external tibial torsion, femoral anteversion, and ligamentous laxity. The purpose of this paper is to provide a review of the evaluation of PFI in the pediatric and adolescent patient with a specific focus on the contributions of coronal and transverse plane deformities. Moreover, a framework will be provided for the incorporation of bony procedures to address these issues.
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Affiliation(s)
- Robert C. Palmer
- Scottish Rite for Children, Dallas, TX 75219, USA; (R.C.P.); (D.A.P.); (P.L.W.)
| | - David A. Podeszwa
- Scottish Rite for Children, Dallas, TX 75219, USA; (R.C.P.); (D.A.P.); (P.L.W.)
- Department of Orthopeadics, University of Texas Southwestern Medical Center, Dallas, TX 75033, USA
| | - Philip L. Wilson
- Scottish Rite for Children, Dallas, TX 75219, USA; (R.C.P.); (D.A.P.); (P.L.W.)
- Department of Orthopeadics, University of Texas Southwestern Medical Center, Dallas, TX 75033, USA
| | - Henry B. Ellis
- Scottish Rite for Children, Dallas, TX 75219, USA; (R.C.P.); (D.A.P.); (P.L.W.)
- Department of Orthopeadics, University of Texas Southwestern Medical Center, Dallas, TX 75033, USA
- Correspondence:
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22
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Ercan N, Akmese R, Ulusoy B. Single-tunnel and double-tunnel medial patellofemoral ligament reconstructions have similar clinical, radiological and functional results. Knee Surg Sports Traumatol Arthrosc 2021; 29:1904-1912. [PMID: 32889556 DOI: 10.1007/s00167-020-06260-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Accepted: 08/28/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE The aim of the present study was to evaluate the clinical, radiological and functional results of patients underwent single-tunnel (ST) and double-tunnel (DT) medial patellofemoral ligament(MPFL) reconstructions with hamstring autograft following recurrent patella dislocation prospectively in a single institution. METHODS From 2013 to 2017, 80 patients with symptomatic recurrent patellar dislocation or instability were randomly divided into 2 groups for MPFL reconstruction with ST technique or DT technique and evaluated prospectively. In the ST group, there were 20 male and 20 female with a median follow-up of 46.5 months (range 24-74). The median age was 15 years (range 10-28). In the DT group, there were 18 male and 22 female with a median follow-up of 40 months (range 24-74). The median age was 19 years (range 14-29). Clinical scores (Kujala score, Lysholm score, Tegner score and IKDC score) and radiological measurements (congruence angle and patellar tilt angle) of the patients were evaluated preoperatively and at postoperative 24th month. Isokinetic dynamometric tests were performed at postoperative 24th month and the difference between the operated leg and the non-operated leg was found as a percentage deficit. RESULTS There were no postoperative complications, redislocation or subluxation in any patient. Kujala, Lysholm, Tegner and IKDC scores were better and statistically significant postoperatively in both groups (p < 0.05). However, there was no statistically significant difference between the groups (n.s.). The congruence angle and patellar tilt angle were found to be returned to normal values postoperatively, but there was no statistically significant difference between the groups (n.s.). There was no statistically significant difference between the two groups in isokinetic dynamometric tests performed as 60° flexion, 60° extension, 180° flexion and 180° extension (n.s.). CONCLUSION The present study is the first that compared the clinical, radiological and functional results of the ST and DT techniques to date. Regardless of the number of the tunnels, similar results were obtained in ST and DT reconstruction using transpatellar tunnel technique. LEVEL OF EVIDENCE Level I.
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Affiliation(s)
- Niyazi Ercan
- Department of Orthopedics and Traumatology, Ankara Training and Research Hospital, Ankara, Turkey.
| | - Ramazan Akmese
- Department of Orthopedics and Traumatology, Ankara University School of Medicine, Ankara, Turkey
| | - Burak Ulusoy
- Department of Physical Therapy and Rehabilitation, Hacettepe University, Ankara, Turkey
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23
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Zhao Z, Wang Y, Li J, Wang H, Bai X, Wang Q, Li Z. Clinical Outcomes and Prognostic Factors in Patients With Recurrent Patellar Lateral Dislocation Treated With Isolated Medial Patellofemoral Ligament Reconstruction: A Retrospective Single-Center Analysis. Orthop J Sports Med 2021; 9:2325967121995803. [PMID: 33954219 PMCID: PMC8044575 DOI: 10.1177/2325967121995803] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 11/29/2020] [Indexed: 12/19/2022] Open
Abstract
Background Medial patellofemoral ligament reconstruction (MPFLR) is widely used to treat patellofemoral instability. However, it is still unclear when a concomitant bony procedure is needed. Purpose To evaluate the therapeutic efficacy of isolated MPFLR for recurrent patellar lateral dislocation and to identify the prognostic factors for clinical outcomes. Study Design Case series; Level of evidence, 4. Methods A total of 237 patients who had undergone unilateral isolated MPFLR between January 2011 and December 2016 were included. Patellar tracking (J sign) and radiologic information including patellar height, trochlear dysplasia, tibial tubercle-trochlear groove distance, and patellar tilt was collected preoperatively, and the Kujala and International Knee Documentation Committee (IKDC) functional scores were used to assess postoperative recovery. Failure was defined as redislocation or patient-reported and clinically confirmed patellar instability. The influence of radiologic features and the J sign on knee functional scores was explored via subgroup analysis. Potential prognostic factors were explored using univariate and multivariate regression analyses, and risk factors for a positive J sign were evaluated using Spearman coefficient correlation analysis. Results The mean ± SD follow-up period was 70.67 ± 18.05 months (range, 36-108 months). From preoperatively to final follow-up, all patients had statistically and clinically significant improvements in the Kujala score (from 51.43 ± 6.87 to 88.52 ± 4.83; P < .001) and IKDC score (from 49.78 ± 6.05 to 81.16 ± 4.20; P < .001). Subgroup analysis indicated no significant difference in functional score improvements based on radiologic features or the J sign. Overall, 20 knees (8.4%) experienced postoperative failure: 11 with redislocation and 9 with patellar instability. A preoperative positive J sign was shown to be an independent prognostic factor for postoperative failure via logistic regression analyses: univariate (odds ratio, 3.340; 95% CI, 1.316-8.480; P = .011) and multivariate (odds ratio, 3.038; 95% CI, 1.179-7.827; P = .021). In addition, the J sign was closely associated with patellar height (r S, 0.159; P = .014) and trochlear dysplasia (r S, 0.235; P < .001). Conclusion Isolated MPFLR appears to be an effective strategy for recurrent patellar lateral dislocation, with significant functional improvement and a low failure rate. A preoperative positive J sign was identified as a potential prognostic risk factor for postoperative failure.
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Affiliation(s)
- Zhidong Zhao
- Medical School of Chinese PLA, Beijing, China.,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Yuxing Wang
- Medical School of Chinese PLA, Beijing, China.,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Ji Li
- Medical School of Chinese PLA, Beijing, China.,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Haoran Wang
- Medical School of Chinese PLA, Beijing, China.,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Xiaowei Bai
- Medical School of Chinese PLA, Beijing, China.,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Qi Wang
- Medical School of Chinese PLA, Beijing, China.,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zhongli Li
- Medical School of Chinese PLA, Beijing, China.,Department of Orthopedics, The First Medical Center, Chinese PLA General Hospital, Beijing, China
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Li Y, Liu J, Lei L, Zhou P, Deng F, Li Z. [Short-term effectiveness of derotational distal femoral osteotomy combined with medial patellofemoral ligament reconstruction for recurrent patellar dislocation]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2021; 35:343-348. [PMID: 33719244 DOI: 10.7507/1002-1892.202009111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Objective To investigate the short-term effectiveness of derotational distal femoral osteotomy (DDFO) combined with medial patellofemoral ligament (MPFL) reconstruction in treatment of recurrent patellar dislocation with excessive femoral anteversion angle (FAA≥30°). Methods Between June 2017 and August 2019, 17 patients with recurrent patellar dislocation with FAA≥30° were treated with DDFO and MPFL reconstruction. There were 5 males and 12 females, aged 14-22 years, with an average of 17.7 years. The patella dislocated for 2 to 8 times (mean, 3.6 times). The disease duration was 2-7 years (mean, 4.6 years). The patellar apprehension tests were positive. Preoperative pain visual analogue scale (VAS) score, Lysholm score, Tegner score, and Kujala score were 4.2±1.1, 47.8±8.1, 3.6±1.1, and 56.8±5.7, respectively. FAA, mechanical lateral distal femoral angle (mLDFA), lateral patella displacement (LPD), tibial tuberosity-trochlear groove distance (TT-TG) were (34.9±3.4)°, (85.8±3.0)°, (13.7±3.8) mm, and (23.1±2.1) mm, respectively. Results All incisions healed by first intention, and there was no complications such as knee stiffness, infection, and re-dislocation of the patella. All patients were followed up 13-25 months, with an average of 17.7 months. The imaging review showed that 1 case of osteotomy did not union, and achieved satisfactory results after the secondary revision and strengthening fixation; the osteotomies of other patients healed completely after 3 to 4 months of operation. The patellar apprehension tests were negative. At last follow-up, the FAA, mLDFA, LPD, and TT-TG were (15.6±2.7)°, (83.0±2.1)°, (5.0±2.6) mm, and (20.5±2.5) mm, respectively; the VAS score, Lysholm score, Tegner score, and Kujala score were 2.4±1.4, 93.4±7.8, 6.8±1.5, and 89.0±8.0, respectively. There were significant differences in the above indicators between pre- and post-operation ( P<0.05). Conclusion DDFO combined with MPFL reconstruction for the recurrent patellar dislocation with excessive FAA (≥30°) can achieve good short-term effectiveness, significantly reduce knee pain, and improve function.
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Affiliation(s)
- Yuan Li
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University & Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou Sichuan, 646000, P.R.China
| | - Juncai Liu
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University & Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou Sichuan, 646000, P.R.China
| | - Lei Lei
- Department of Rehabilitation Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou Sichuan, 646000, P.R.China
| | - Peng Zhou
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University & Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou Sichuan, 646000, P.R.China
| | - Fuyuan Deng
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University & Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou Sichuan, 646000, P.R.China
| | - Zhong Li
- Department of Orthopaedics, the Affiliated Hospital of Southwest Medical University & Sichuan Provincial Laboratory of Orthopaedic Engineering, Luzhou Sichuan, 646000, P.R.China
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25
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Sarikaya B, Bozkurt C, Sipahioglu S, Çetin BV, Altay MA. Patellar Fixation With Suspensory Fixation Device in Single-Tunnel Medial Patellofemoral Ligament Reconstruction. Arthrosc Tech 2021; 10:e1109-e1116. [PMID: 33981558 PMCID: PMC8085437 DOI: 10.1016/j.eats.2021.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/08/2021] [Indexed: 02/03/2023] Open
Abstract
The medial patellofemoral ligament (MPFL) is the primary soft-tissue stabilizer of the patellofemoral joint. Among the patellofemoral instability surgery options, MPFL reconstruction is the most preferred soft-tissue procedure. There is no gold-standard surgical treatment method in MPFL reconstruction, and many surgical methods have been described. We describe our surgical technique for MPFL reconstruction wherein the semitendinosus autograft is fixed to a single tunnel opened in the patella with a suspensory fixation device and only a single interference screw on the femoral side.
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Affiliation(s)
- Baran Sarikaya
- Address correspondence to Baran Sarikaya, M.D., Osmanbey Kampusu, Ortopedi ve Travmatoloji Anabilim Dali, Sanliurfa-Mardin Karayolu Uzeri, 18 Km, 63100, Sanliurfa, Turkey.
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26
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Jha V, Jain P. Medial Patellofemoral Complex Advancement for Recurrent Lateral Patellar Instability and Selective Acute Primary Patellar Dislocations. Arthrosc Tech 2021; 10:e767-e774. [PMID: 33738213 PMCID: PMC7953354 DOI: 10.1016/j.eats.2020.10.081] [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] [Received: 08/14/2020] [Accepted: 10/28/2020] [Indexed: 02/03/2023] Open
Abstract
Medial patellofemoral complex (MPFC) is considered as the primary medial patellar restraint and has a static, as well as dynamic, component. MPFL reconstruction (MPFL-R) restores only the static component of MPFC, is associated with multiple technical concerns, and has a steep learning curve. Need for physeal sparing techniques and relatively high rates of complications including patella fracture are some other concerns with MPFL-R. We propose a simple procedure for advancement of MPFC onto patella, which is indicated in most of the recurrent lateral instabilities (with a positive lateral glide test result and an intact MPFL on magnetic resonance imaging). The procedure is also indicated in selective acute primary dislocations-those with associated chondral lesions and magnetic resonance imaging-documented isolated patellar side avulsion/injury. MPFC advancement is a more anatomical procedure that also restores dynamic medial checkrein of patella and can be performed even by a novice surgeon. MPFC advancement is devoid of the multiple technicalities of MPFL-R, does not require intraoperative imaging or any postoperative immobilization, and renders complications like donor graft-site morbidity and patella fractures irrelevant. It requires no modifications in patients with open physes and can be performed in isolation or with other procedures as per à la carte principle.
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Affiliation(s)
- Vivek Jha
- Department of Orthopaedics, Maharishi Markandeshwar Medical College and Hospital, Solan, Himachal Pradesh, India
- Address correspondence to Vivek Jha, M.S., Department of Orthopaedics, Maharishi Markandeshwar Medical College and Hospital, Kumarhatti, Solan, Himachal Pradesh, India.
| | - Prathmesh Jain
- Advance Knee and Shoulder Hospital, Ahmedabad, Gujarat, India
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Zimmermann F, Börtlein J, Milinkovic DD, Balcarek P. Patient-Reported Outcomes After Revision Surgery for Failed Medial Patellofemoral Ligament Reconstruction: A Matched-Pair Analysis Including Correction of Predisposing Factors. Am J Sports Med 2020; 48:3566-3572. [PMID: 33104394 DOI: 10.1177/0363546520966354] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Complications and the need for revision surgery after medial patellofemoral ligament reconstruction (MPFLR) are evident in the current literature. However, there is a shortage of clinical data evaluating the results of revision surgery in individual patients after failed MPFLR. PURPOSE To investigate the results of tailored revision surgery for failed MPFLR, including the correction of predisposing factors. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Between August 2015 and March 2019, 25 patients (male:female, n = 9:16; mean ± SD age, 25.9 ± 6.5 years) underwent revision surgery for failed MPFLR (study group). The Banff Patella Instability Instrument 2.0 (BPII 2.0) and a numerical analog scale (0-10) for patellofemoral pain and subjective knee joint function were used to assess patient-reported quality of life before and after revision surgery. The control group of 50 patients (male:female, n = 18:32; age, 22.8 ± 4.3 years) who underwent identical patellar-stabilizing procedures was matched 1:2 by the surgical procedure, predisposing factors, sex, age, and follow-up time. RESULTS Evaluation was performed postoperatively at a mean 27.8 ± 14.0 months (range, 12-54 months) in the study group and 26.1 ± 11.2 months (range, 12-56 months) in the control group (P = .55). The BPII 2.0 score increased from 28.6 ± 17.9 points to 68.7 ± 22.3 points (P < .0001) in the study group and from 43.8 ± 22.5 points to 75.5 ± 21.4 points (P < .0001) in the control group from preoperatively to postoperatively, respectively. Before revision surgery, the BPII 2.0 scores in the study group were significantly inferior to those in the control group (P = .0026). At the final follow-up, the BPII 2.0 score in the study group was not significantly lower (P = .174), and a similar number of patients in the study group and the control group achieved the minimally clinically important difference (P = .49). Patellofemoral pain and subjective knee joint function improved significantly in both groups (P < .0001, P < .0001), without any significant difference between them at the final follow-up (P = .85, P = .86). CONCLUSION Revision surgery for MPFLR failure, including the correction of major anatomic risk factors, yielded a significant improvement in patient-reported quality-of-life outcome measures. Patients with failed MPFLR, however, were significantly more restricted before revision surgery than patients without previous interventions when evaluated with the BPII 2.0.
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Affiliation(s)
- Felix Zimmermann
- Arcus Sportklinik, Pforzheim, Germany.,BG Klinik Ludwigshafen, Ludwigshafen am Rhein, Germany
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28
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Hinckel BB, Baumann CA, Ejnisman L, Cavinatto LM, Martusiewicz A, Tanaka MJ, Tompkins M, Sherman SL, Chahla JA, Frank R, Yamamoto GL, Bicos J, Arendt L, Fithian D, Farr J. Evidence-based Risk Stratification for Sport Medicine Procedures During the COVID-19 Pandemic. J Am Acad Orthop Surg Glob Res Rev 2020; 4:e20.00083. [PMID: 33986224 PMCID: PMC7537824 DOI: 10.5435/jaaosglobal-d-20-00083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 07/16/2020] [Indexed: 01/08/2023]
Abstract
Orthopaedic practices have been markedly affected by the emergence of the COVID-19 pandemic. Despite the ban on elective procedures, it is impossible to define the medical urgency of a case solely on whether a case is on an elective surgery schedule. Orthopaedic surgical procedures should consider COVID-19-associated risks and an assimilation of all available disease dependent, disease independent, and logistical information that is tailored to each patient, institution, and region. Using an evidence-based risk stratification of clinical urgency, we provide a framework for prioritization of orthopaedic sport medicine procedures that encompasses such factors. This can be used to facilitate the risk-benefit assessment of the timing and setting of a procedure during the COVID-19 pandemic.
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Affiliation(s)
- Betina B Hinckel
- From the Oakland University, Rochester (Dr. Hinckel, and Dr. Cavinatto); Department of Orthopaedic Surgery, William Beaumont Hospital, Royal Oak (Dr. Hinckel, Dr. Cavinatto), MI; the University of Missouri-School of Medicine, Columbia, MO (Mr. Baumann); the Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, SP, BR (Dr. Ejnisman); the Shoulder and Elbow Surgery, Beaumont Orthopaedic Associates, Beaumont Health (Dr. Martusiewicz); the Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA (Dr. Tanaka); the Department of Orthopedic Surgery, TRIA Orthopedic Center, University of Minnesota, Gillette Children's Specialty Healthcare, MN (Dr. Tompkins); the Department of Orthopedic Surgery, Stanford University, CA (Dr. Sherman); the Rush University Medical Center, Chicago, IL (Dr. Chahla); the Division of Sports Medicine and Shoulder Surgery, Department of Orthopedics, Aurora, CO (Dr. Frank); the Department of Orthopaedic Surgery, Boston Children's Hospital, Harvard Medical School, Boston, MA (Dr. Yamamoto); CEGH-CEL, Instituto de Biociências, Universidade de São Paulo (Dr. Yamamoto); DASA Laboratories, Sao Paulo, Brazil (Dr. Yamamoto); the Michigan Orthopedic Surgeons, Fellowship Director William Beaumont Sports Medicine Fellowship, Assistant Professor Oakland University William Beaumont School of Medicine, MI (Dr. Bicos); the Department of Orthopaedic Surgery, University of Minnesota, Minneapolis, MN (Dr. Arendt); the Southern California Permanente Medical Group and Torrey Pines Orthopaedic Medical Group, San Diego, CA (Dr. Fithian); and the Knee Preservation, Cartilage Regeneration and OrthoBiologics, Department of Orthopedic Surgery, Indiana University School of Medicine, OrthoIndy and OrthoIndy Hospital, Greenwood and Indianapolis, IN (Dr. Farr)
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29
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Instabile Patella des Erwachsenen. ARTHROSKOPIE 2020. [DOI: 10.1007/s00142-020-00405-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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de Abreu-E-Silva GM, Buarque FAR, Dias TS, Lei P, Bueno ELR, de Andrade MAP. Anatomical femoral tunnel positioning in the medial patellofemoral ligament reconstruction: is the free-hand technique accurate? ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:924. [PMID: 32953724 PMCID: PMC7475416 DOI: 10.21037/atm-19-3925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Background During medial patellofemoral ligament (MPFL) reconstruction, achieving anatomical positioning of the femoral and patellar origins is important for restoration of patellofemoral biomechanics. Although visual and manual detection can also be used to determine the femoral point of the MPFL, minimal research exists regarding accuracy of this method. Our aim was to evaluate the accuracy of free-hand method in determining the femoral point of the MPFL during surgery. Methods A prospective analysis was completed with 19 patients (20 knees), age ranging 15 to 39 years, in whom, three orthopedic surgeons with experience in knee procedures performed surgical reconstruction of the MPFL. MPFL femoral origin was accessed in a free-hand technique and a strict lateral view of the knee was then obtained. If the selected point was not considered appropriate, a better position was identified following the criteria set forth by Schottle. Results In a mean clinical follow-up of 2.3±1.3 years, anatomical point was achieved using the free-hand palpation method in seven knees (28.5%). Among the thirteen knees for whom the anatomical point was not attained without fluoroscopy, the mean error pattern found was 27.5%±8.6% for proximal (P-D axis) and 24%±6.3% for anterior in the posterior-anterior axis. The average error (difference between the marked point and the anatomical point) was 20.6%±5.9% (P=0.98) for the distal-proximal axis and 15.9%±6.1% (P=0.77) for the posterior-anterior axis. Conclusions The anatomical palpation technique showed low accuracy, even when performed by experienced surgeons. The most common error pattern observed was proximal and anterior.
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Affiliation(s)
- Guilherme Moreira de Abreu-E-Silva
- Orhopaedic Department of Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil.,Felício Rocho Hospital, Belo Horizonte, Minas Gerais, Brazil
| | | | | | - Pengfei Lei
- Department of Orthopeadic Surgery, Xiangya Hospital, Central South University, Changsha, China
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Tanaka MJ. Editorial Commentary: Repair or Reconstruct? Addressing Medial Patellofemoral Ligament Insufficiency in the Absence of Morphologic Abnormalities. Arthroscopy 2020; 36:1735-1737. [PMID: 32503781 DOI: 10.1016/j.arthro.2020.02.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 02/21/2020] [Indexed: 02/02/2023]
Abstract
The role of medial patellofemoral ligament (MPFL) repair versus reconstruction in the treatment of patellar instability continues to undergo debate. Repair of the ligament can be technically less demanding with fewer risks of morbidity, whereas reconstruction carries concerns of graft malpositioning or over-tensioning as well as the risk of patellar fracture. Studies directly comparing the 2 procedures in the setting of recurrent patellar instability have consisted of small series or low levels of evidence that inevitably include patients with concurrent morphologic risk factors such as tuberosity malalignment or patella alta, which are known factors that can influence the biomechanical behavior of the MPFL. Heterogeneity in patient-related risk factors and surgical techniques continues to pose limitations in allowing for direct comparisons between procedures. For the treatment of recurrent patellar instability in the setting of no (or concurrently addressed) morphologic abnormalities, MPFL reconstruction has become a common procedure and generally preferred approach. The superior outcomes associated with reconstruction over repair, however, should be qualified with the fact that attention to the critical details of the technique, including graft position and tension, is paramount to success when performing this procedure.
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