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Grassi A, Lucidi GA, Di Paolo S, Altovino E, Agostinone P, Dal Fabbro G, Romandini I, Filardo G, Zaffagnini S. Clinical Outcomes of Medial Meniscal Allograft Transplantation With or Without High Tibial Osteotomy: A Case-Control Study Up to 8 Years of Follow-up. Am J Sports Med 2024; 52:1813-1819. [PMID: 38767945 PMCID: PMC11143754 DOI: 10.1177/03635465241248822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 02/29/2024] [Indexed: 05/22/2024]
Abstract
BACKGROUND Satisfactory clinical results of meniscal allograft transplantation (MAT) have been reported in recent years. However, it remains unclear whether the clinical outcomes of MAT when combined with an osteotomy are inferior to those of isolated MAT. PURPOSE To compare the survival rates and clinical outcomes of patients who received isolated medial MAT with those of patients undergoing medial MAT combined with high tibial osteotomy (HTO). STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A total of 55 patients underwent arthroscopic medial MAT using the soft tissue technique and HTO (mean age, 41.3 ± 10.4 years; 9 female); after fuzzy case-control matching on demographics, 55 controls who underwent isolated medial MAT were also included. Survival analyses were performed using the Kaplan-Meier method with surgical failure, clinical failure (Lysholm score, <65), and reoperation as endpoints. Subjective clinical scores were collected preoperatively and at the final follow-up. RESULTS The mean follow-up time was 5.4 years, up to 8 years. All outcomes significantly improved at the last follow-up (P < .001). No differences were identified between MAT and MAT + HTO groups preoperatively and at the last follow-up (P > .05). At the final follow-up, 8 of 55 (14.5%) of the MAT + HTO patients and 9 of 55 (16.4%) of the MAT patients had a Lysholm score <65 (P = .885). Overall, 90% of the patients declared they would repeat the surgery regardless of the combined procedure. Surgical failure was identified in 6 of 110 (5.5%) patients: 5 of 55 (9.1%) in the MAT + HTO group and 1 of 55 (1.8%) in the MAT group (P = .093). Clinical failure was identified in 19 of 110 (17.3%) patients: 11 of 55 (20%) in the MAT + HTO group and 8 of 55 (14.5%) in the MAT group (P = .447). A significantly lower survivorship from surgical failure was identified in the MAT + HTO group (hazard ratio, 5.1; P = .049), while no differences in survivorship from reoperation and clinical failure were identified (P > .05). CONCLUSION Patients undergoing medial MAT + HTO showed similar clinical results to patients undergoing isolated medial MAT at midterm follow-up, and thus a surgically addressed malalignment does not represent a contraindication for medial MAT. However, the need for a concomitant HTO is associated with a slightly higher failure rate over time.
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Affiliation(s)
- Alberto Grassi
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Gian Andrea Lucidi
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Stefano Di Paolo
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Emanuele Altovino
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Piero Agostinone
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
- Surgical Department, Aspetar Hospital, Qatar, Doha
| | - Giacomo Dal Fabbro
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Iacopo Romandini
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giuseppe Filardo
- Applied and Translational Research Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
- Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland
| | - Stefano Zaffagnini
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
- Dipartimento di Scienze Biomediche e Neuromotorie DIBINEM, Università di Bologna, Bologna, Italy
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McLean EJ, Cashmore RG. Novel crescentic, medial-closing, medially translating, centre-of-rotation-of-angulation-based, levelling osteotomy for lateral compartment stifle disease with partial cranial cruciate ligament tear in two dogs. N Z Vet J 2024; 72:162-169. [PMID: 38296654 DOI: 10.1080/00480169.2024.2308291] [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: 09/20/2023] [Accepted: 01/16/2024] [Indexed: 02/02/2024]
Abstract
CASE HISTORY Two mature, large breed dogs presented with chronic lameness and discomfort localised to the stifle. CLINICAL FINDINGS No hindlimb deformities were present on physical examination or radiographic evaluation. No stifle instability was present. Arthroscopy revealed severe (grade 5/5 modified Outerbridge score) cartilage erosion in the lateral compartment (femorotibial), marked degeneration of the lateral meniscus and early cranial cruciate ligament disease in both patients. TREATMENT AND OUTCOME Medial-closing, medially translating, centre-of-rotation-of-angulation-based, levelling osteotomy (mcmtCBLO) was performed in both patients. The procedure aims to shift the pelvic limb's mechanical axis medially to reduce pressure in the lateral compartment while also reducing craniocaudal shear forces by lowering the tibial plateau angle.Eight weeks after surgery one patient's lameness had resolved while the other had improved significantly. Second-look arthroscopy performed at this time revealed fibrocartilage formation in the lateral compartment without progression of cruciate disease in both cases. At long-term follow-up (approximately 3 and 5 years), favourable outcomes (no or minimal lameness, mild or moderate osteoarthritis) were identified on the long-term owner survey, lameness examination and radiographs. CLINICAL RELEVANCE mcmtCBLO reduced or eliminated short- and long-term lameness in these two cases afflicted by concurrent lateral compartment and early cranial cruciate ligament disease.
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Affiliation(s)
- E J McLean
- Southpaws Specialty Surgery for Animals, Melbourne, Australia
| | - R G Cashmore
- Southpaws Specialty Surgery for Animals, Melbourne, Australia
- Melbourne Animal Referral Services, Melbourne, Australia
- Geelong Animal Referral Services, Geelong, Australia
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Agostinone P, Lucidi GA, Dal Fabbro G, Di Paolo S, Pagano A, Viotto M, Neri MP, Grassi A, Zaffagnini S. Satisfactory long-term outcomes for combined anterior cruciate ligament reconstruction and lateral closing wedge high tibial osteotomy. Knee Surg Sports Traumatol Arthrosc 2023; 31:4399-4406. [PMID: 37386198 DOI: 10.1007/s00167-023-07496-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 06/17/2023] [Indexed: 07/01/2023]
Abstract
PURPOSE A combined anterior cruciate ligament (ACL) reconstruction and high tibial osteotomy (HTO) is considered a valuable treatment in young patients affected by symptomatic medial osteoarthritis and ACL deficiency. However, only a few studies have investigated the outcomes of this procedure, especially in the long term. Therefore, the aim of this study is to report clinical and radiographic outcomes of ACL reconstruction and lateral closing wedge HTO at a mean of 14 years of follow-up. METHODS Patients were prospectively evaluated pre-operatively, after 6.5 ± 2.7 years and 14.3 ± 2.2 years. Patient-reported outcome measures (PROMs) were collected, knee laxity was assessed through KT-1000 arthrometer, and limb alignment and knee osteoarthritis were evaluated on long-cassette radiographs. Survivorship of the surgical procedure was calculated through the Kaplan-Meier method. RESULTS 32 patients were initially enrolled and completed the mid-term evaluation (6.5 ± 2.7 years), and 23 patients (72%) were available for the final evaluation at 14.3 ± 2.2 years after surgery. Statistically significant improvement was found for all the clinical scores (VAS, WOMAC, Tegner, subjective IKDC, objective IKDC) between the pre-operative status and the mid-term follow-up (p < .001). VAS, subjective IKDC and objective IKDC showed no statistically significant differences (p > .05) between the mid-term and the final follow-up; a significant decrease of WOMAC (p < .05) and Tegner (p < .001) was found from mid-term to final follow-up. Significant progression of osteoarthritis was found for all the knee compartments. The survivorship was 95.7% at 5 years, 82.6% at 10 years, and 72.8% at 15 years. CONCLUSIONS Combined ACL reconstruction and lateral closing wedge HTO showed satisfactory clinical outcomes and survivorship at a mean of 14 years follow-up. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Piero Agostinone
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Cesare Pupilli 1, 40136, Bologna, BO, Italy.
| | - Gian Andrea Lucidi
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Cesare Pupilli 1, 40136, Bologna, BO, Italy
| | - Giacomo Dal Fabbro
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Cesare Pupilli 1, 40136, Bologna, BO, Italy
| | - Stefano Di Paolo
- Dipartimento di Scienze per la Qualità. della Vita QUVI, Università di Bologna, Bologna, Italy
| | - Anna Pagano
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Cesare Pupilli 1, 40136, Bologna, BO, Italy
| | - Marianna Viotto
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Cesare Pupilli 1, 40136, Bologna, BO, Italy
| | - Maria Pia Neri
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Cesare Pupilli 1, 40136, Bologna, BO, Italy
| | - Alberto Grassi
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Cesare Pupilli 1, 40136, Bologna, BO, Italy
| | - Stefano Zaffagnini
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Cesare Pupilli 1, 40136, Bologna, BO, Italy
- Dipartimento di Scienze Biomediche e Neuromotorie, DIBINEM, Università di Bologna, Bologna, Italy
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Nazzal EM, Zsidai B, Pujol O, Kaarre J, Curley AJ, Musahl V. Considerations of the Posterior Tibial Slope in Anterior Cruciate Ligament Reconstruction: a Scoping Review. Curr Rev Musculoskelet Med 2022; 15:291-299. [PMID: 35653051 DOI: 10.1007/s12178-022-09767-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/05/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE OF REVIEW The significance of posterior tibial slope (PTS) in the setting of anterior cruciate ligament (ACL) injury and reconstruction has been increasingly recognized in recent years. The purpose of this article is to review the biomechanical and clinical studies of PTS in conjunction with ACL injuries, providing an evidence-based approach for the evaluation and management of this patient population. RECENT FINDINGS Several biomechanical and clinical studies suggest that PTS > 12° may be considered with increased strain on the native ACL fibers (or reconstructed graft) and greater anterior tibial translation, predisposing patients to a recurrent ACL injury. The increased rates of ACL injury and graft failure seen in those with increased PTS have garnered attention to diagnose and surgically address increased PTS in the revision ACL setting; however, the role of a slope-reducing high tibial osteotomy (HTO) in primary ACL reconstruction (ACL-R) has yet to be defined. Various HTO techniques to decrease PTS during revision ACL-R have demonstrated promising outcomes, though conclusions are limited by the multifactorial nature of revision surgery and concomitant procedures performed. Recent evidence suggests that increased PTS is a risk factor for failure following ACL-R, which may be mitigated by a slope-reducing HTO. Further investigation is needed to elucidate abnormal PTS values and to determine appropriate indications for a slope-reducing HTO in primary ACL-R.
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Affiliation(s)
- Ehab M Nazzal
- UPMC Freddie Fu Sports Medicine Center, 3200 S Water St., Pittsburgh, PA, 15203, USA.
| | - Bálint Zsidai
- UPMC Freddie Fu Sports Medicine Center, 3200 S Water St., Pittsburgh, PA, 15203, USA.,Department of Orthopaedics, Institution of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Oriol Pujol
- UPMC Freddie Fu Sports Medicine Center, 3200 S Water St., Pittsburgh, PA, 15203, USA.,Orthopedic Surgery Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - Janina Kaarre
- UPMC Freddie Fu Sports Medicine Center, 3200 S Water St., Pittsburgh, PA, 15203, USA.,Department of Orthopaedics, Institution of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Andrew J Curley
- UPMC Freddie Fu Sports Medicine Center, 3200 S Water St., Pittsburgh, PA, 15203, USA
| | - Volker Musahl
- UPMC Freddie Fu Sports Medicine Center, 3200 S Water St., Pittsburgh, PA, 15203, USA
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Closed-wedge high tibial osteotomy is more advantageous to maintain the correction than open-wedge high tibial osteotomy in osteopenic patients. Knee Surg Sports Traumatol Arthrosc 2022; 31:1563-1570. [PMID: 35635568 DOI: 10.1007/s00167-022-07006-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/08/2022] [Indexed: 10/18/2022]
Abstract
PURPOSE To compare the incidence of correction loss and survival rate between closed-wedge and open-wedge high tibial osteotomies (CWHTO and OWHTO, respectively) in patients with osteopenic and normal bone. METHODS Retrospective review was conducted for 115 CWHTOs and 119 OWHTOs performed in osteopenic patients [- 2.5 < Bone mineral density (BMD) T scores ≤ - 1] and 136 CWHTOs and 138 OWHTOs performed in normal patients (BMD T score > - 1) from 2012 to 2019. Demographics were not different between CW- and OWHTOs in osteopenic and normal patients (n.s., respectively). Radiographically, the mechanical axis (MA), medial proximal tibial angle (MPTA), and posterior tibial slope (PTS) were evaluated pre- and postoperatively (2 weeks after HTO). The occurrence of hinge fractures was investigated using radiographs taken on the operation day. The correction change was calculated as the last follow-up value minus postoperative MPTA. Correction loss was defined when the correction change was ≥ 3°. The survival rate (failure: correction loss) was investigated. RESULTS There were no significant differences in the pre and postoperative MA, MPTA, PTS, and value changes between CW- and OWHTOs in osteopenic and normal patients (n.s., respectively); the incidence of unstable hinge fractures also did not differ significantly (CWHTO vs. OWHTO = 7 vs. 7.6% in osteopenic patients; 2.9 vs. 3.6% in normal patients; n.s., respectively). The average correction change (CWHTO = - 0.6°, OWHTO = - 1.3°, p = 0.007), incidence of correction loss (CWHTO = 1.7%, OWHTO = 9.2%, p = 0.019), and 5-year survival rates (CWHTO = 98.3%, OWHTO = 90.8%, p = 0.013) differed significantly in osteopenic patients; there were no significant differences in these results in normal patients (n.s., respectively). CONCLUSION CWHTO was more advantageous than OWHTO regarding the correction loss in osteopenic patients. Intra- and postoperative care that consider poor bone quality will be required when performing OWHTOs in osteopenic patients. LEVEL OF EVIDENCE III.
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Presutti M, Goderecci R, Palumbo P, Giannetti A, Mazzoleni MG, Randelli FMN, Angelozzi M, Calvisi V, Fidanza A. A novel biplanar medial opening-wedge high tibial osteotomy: the Z-shaped technique. A case series at 7.2 years follow-up. J Orthop Traumatol 2021; 22:53. [PMID: 34905126 PMCID: PMC8671589 DOI: 10.1186/s10195-021-00617-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 12/03/2021] [Indexed: 11/30/2022] Open
Abstract
Background High tibial osteotomy (HTO) provides reliable and good long-term results, if performed with correct indications, but different techniques and types of fixation have been described. The purpose of this study is to present a novel modified biplanar medial opening-wedge (MOW) HTO technique where the osteotomies are performed in a Z-shaped fashion, and to present the medium-term clinical and radiographic results. Materials and methods We present a case series of 75 patients (80 knees) with mean age of 45.8 years, affected by isolated medial knee osteoarthritis and symptomatic varus knee malalignment, who underwent novel biplanar Z-shaped MOWHTO. Clinical and radiological outcomes were collected, retrospectively before surgery and at median follow-up of 7.2 years (95% CI 5.6–9.2 months) after surgery. Clinical results and satisfaction were assessed by visual analog scale (VAS), Western Ontario and McMaster University Osteoarthritis Index (WOMAC), and Likert scale. Radiological assessment involved the evaluation of the medial proximal tibial angle (MPTA), tibial slope (TS), Caton–Deschamps index, and knee osteoarthritis grade according to Ahlbäck classification. Pre- and postoperative results were compared using the two-tailed t-test or Wilcoxon’s test of independent samples for paired data or nonparametric analog. P < 0.05 was considered significant. Results At medium-term follow-up, Z-shaped MOWHTO showed a survival rate of 95 ± 1.7% with failure occurring in four knees due to symptom recurrence and osteoarthritis progression. No perioperative complications were observed (intraarticular fracture, delayed union or nonunion, and neurological injury). Mean bone healing time was 12 weeks. Clinical scores showed significant improvement at last follow-up and a good grade of satisfaction. MPTA increased significantly, while Caton–Deschamps index decreased significantly. No significant TS increase was found. Conclusions Modified biplanar Z-shaped MOWHTO is a safe and reliable technique that offers satisfactory clinical and radiological medium-term outcomes with low knee arthroplasty conversion rate. The unique three-dimensional geometrical conformation potentially provides a favorable environment for bone healing, increased anteroposterior and rotational stability, and safer opening-wedge loading force application with low lateral hinge fracture risk. Level of evidence Level IV, retrospective observational case series study. Trial registration The study protocol was approved by the Internal Review Board of our Institution (authorization number 54/2019, 20 November 2019).
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Affiliation(s)
- Marcello Presutti
- Unit of Orthopaedic Surgery, "Casa Di Cura Villa Esther", Bojano (Cb), Italy
| | - Remo Goderecci
- Unit of Orthopaedics and Traumatology, "G. Mazzini" Civil Hospital of Teramo, ASL 4 Teramo, Piazza Italia 1, 64100, Teramo, Italy.
| | - Pietro Palumbo
- Unit of Orthopaedics and Traumatology, Azienda Ospedaliero Universitaria - Ospedali Riuniti, Foggia (FG), Italy
| | - Alessio Giannetti
- Department of Life, Health and Environmental Sciences, Unit of Orthopaedics and Traumatology, University of L'Aquila, Piazzale Salvatore Tommasi 1, Blocco 11, 67100, L'Aquila (AQ), Italy
| | - Manuel Giovanni Mazzoleni
- Department of Life, Health and Environmental Sciences, Unit of Orthopaedics and Traumatology, University of L'Aquila, Piazzale Salvatore Tommasi 1, Blocco 11, 67100, L'Aquila (AQ), Italy
| | | | - Massimo Angelozzi
- Department of Life, Health and Environmental Sciences, Unit of Orthopaedics and Traumatology, University of L'Aquila, Piazzale Salvatore Tommasi 1, Blocco 11, 67100, L'Aquila (AQ), Italy
| | - Vittorio Calvisi
- Department of Life, Health and Environmental Sciences, Unit of Orthopaedics and Traumatology, University of L'Aquila, Piazzale Salvatore Tommasi 1, Blocco 11, 67100, L'Aquila (AQ), Italy
| | - Andrea Fidanza
- Department of Life, Health and Environmental Sciences, Unit of Orthopaedics and Traumatology, University of L'Aquila, Piazzale Salvatore Tommasi 1, Blocco 11, 67100, L'Aquila (AQ), Italy
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Grimm NL, Levy BJ, Jimenez AE, Arciero RA. Osteotomies for the Management of Medial Compartment Defects of the Knee. J Knee Surg 2020; 33:1164-1171. [PMID: 32583399 DOI: 10.1055/s-0040-1712985] [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: 02/07/2023]
Abstract
For nearly three-quarters of a century the proximal tibia osteotomy has been used as an effective treatment for cartilage injuries of the knee. Over this same timeframe several advancements have been made in our diagnostic, preoperative planning, and technical execution of this procedure. As such, good-to-excellent short-, mid-, and long-term outcomes have been reported. Since its inception, the most important step in deciding on this procedure is identifying the ideal candidate. This candidate should be a young patient (<55 years old), active, with isolated medial compartment arthrosis without significant comorbidities. With appropriate patient selection and careful preoperative planning, the patient should achieve excellent results and high satisfaction.
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Affiliation(s)
- Nathan L Grimm
- Pediatric & Adult Sports Medicine Surgeon, Idaho Sports Medicine Institute, Boise, Idaho.,Division of Sports Medicine, Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
| | - Benjamin J Levy
- Division of Sports Medicine, Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
| | - Andrew E Jimenez
- Division of Sports Medicine, Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
| | - Robert A Arciero
- Division of Sports Medicine, Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, Connecticut
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Berruto M, Maione A, Tradati D, Ferrua P, Uboldi FM, Usellini E. Closing-wedge high tibial osteotomy, a reliable procedure for osteoarthritic varus knee. Knee Surg Sports Traumatol Arthrosc 2020; 28:3955-3961. [PMID: 32055878 DOI: 10.1007/s00167-020-05890-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 01/29/2020] [Indexed: 10/25/2022]
Abstract
PURPOSE The purpose of this study was to analyze the long-term clinical and radiological outcomes of patients who underwent closing-wedge High Tibial Osteotomy (HTO) for the treatment of medial compartment osteoarthritis and to evaluate the conversion rate to knee arthroplasty. METHODS A retrospective, non-randomized, monocentric study was performed in our Institution considering 166 patients between 1989 and 2012. The final population was composed by 82 patients (94 knees), median age at time of operation was 53 (range 45-73) years. All patients were evaluated clinically (HSS Score, Tegner Scale, VAS and Crosby-Insall Grading) and radiographically (osteoarthritis staging, hip-knee-ankle (HKA) angle, tibial slope and metaphyseal varus). RESULTS Mean follow-up was 11.9 ± 7.2 years. HSS Score increased significantly from 70.8 ± 10 to 93.2 ± 9.1 (p < 0.05) instead Tegner Scale increased from 1.3 ± 0 (range 1-4) to 2.8 ± 0.7 (range 2-6) at the last control (n.s.); VAS score significantly decreased from 7.9 ± 1.4 to 1.6 ± 1.1 (p < 0.05) at last follow-up. According to the Crosby-Insall Grading System, 80 patients (97.4%) reported excellent-good results. HKA angle decreased from 6.9° ± 3.5 to 2.6° ± 2.6 (p < 0.01), tibial slope decreased from 10.1° ± 1.4 to 6.8° ± 2.1 (p < 0.05) and finally the metaphyseal varus decreased from 4.2° ± 0 to 2.1° ± 1.2 (n.s.) at the last follow-up. Adverse events were reported in 4.8%. Osteotomy survivorship rate resulted 92% at 10 years, 82% at 15 years and 80% at 20 years. Sixteen revisions (9.6%) were reported at a mean period of 12.8 years. CONCLUSIONS CW-HTO is a valid option for medial osteoarthritis treatment, with successful results in both clinical and radiological outcomes. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- M Berruto
- 1° Clinica Ortopedica ASST G. Pini-CTO - UOS Chirurgia Articolare del Ginocchio, Piazza A. Cardinal Ferrari 1, Milan, 20122, Italy
| | - A Maione
- 1° Clinica Ortopedica ASST G. Pini-CTO - UOS Chirurgia Articolare del Ginocchio, Piazza A. Cardinal Ferrari 1, Milan, 20122, Italy
| | - D Tradati
- 1° Clinica Ortopedica ASST G. Pini-CTO - UOS Chirurgia Articolare del Ginocchio, Piazza A. Cardinal Ferrari 1, Milan, 20122, Italy.
| | - P Ferrua
- 1° Clinica Ortopedica ASST G. Pini-CTO - UOS Chirurgia Articolare del Ginocchio, Piazza A. Cardinal Ferrari 1, Milan, 20122, Italy
| | - F M Uboldi
- 1° Clinica Ortopedica ASST G. Pini-CTO - UOS Chirurgia Articolare del Ginocchio, Piazza A. Cardinal Ferrari 1, Milan, 20122, Italy
| | - E Usellini
- 1° Clinica Ortopedica ASST G. Pini-CTO - UOS Chirurgia Articolare del Ginocchio, Piazza A. Cardinal Ferrari 1, Milan, 20122, Italy
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Song SJ, Yoon KH, Park CH. Patellofemoral Cartilage Degeneration After Closed- and Open-Wedge High Tibial Osteotomy With Large Alignment Correction. Am J Sports Med 2020; 48:2718-2725. [PMID: 32762564 DOI: 10.1177/0363546520943872] [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 Previous studies have reported patellofemoral cartilage degeneration and analyzed the factors affecting degeneration after open-wedge high tibial osteotomy (OWHTO). However, no studies have evaluated patellofemoral cartilage degeneration or examined the factors affecting degeneration after closed-wedge high tibial osteotomy (CWHTO). PURPOSE To investigate and compare patellofemoral cartilage degeneration after CWHTO and OWHTO via arthroscopic evaluation and to analyze the factors affecting the degeneration. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A total of 54 CWHTOs and 50 OWHTOs were performed with first-look arthroscopy between 2013 and 2017 at one institution. Hardware removal and second-look arthroscopy were performed, on average, 30.2 months after CWHTO and 26.8 months after OWHTO (P = .178). Patient characteristics did not differ significantly between the groups. Radiographically, the mechanical axis, posterior tibial slope, and modified Blackburne-Peel ratio were evaluated. Arthroscopically, the percentage of patient with patellofemoral cartilage degeneration was evaluated according to the International Cartilage Repair Society grading system. Logistic regression analysis was used to identify the factors affecting patellofemoral cartilage degeneration in terms of demographics and the change of mechanical axis (correction angle), tibial posterior slope angle, and modified Blackburne-Peel ratio. The Anterior Knee Pain Scale was used for clinical comparison between the patellofemoral degenerative and nondegenerative groups. RESULTS No significant differences were observed in pre- and postoperative radiographic results between the CWHTO and OWHTO groups, except that the postoperative modified Blackburne-Peel ratio was significantly smaller among the OWHTOs. The percentage of patients with patellofemoral cartilage degeneration were 29.6% in the CWHTO group and 44% in the OWHTO group (P = .156) at second-look arthroscopy. The correction angle was the only significant factor affecting cartilage degeneration in the CWHTO group (odds ratio, 2.324; P = .013; cutoff value, 9.6°) and the OWHTO group (odds ratio, 1.440; P = .041; cutoff value, 10.1°). The postoperative Anterior Knee Pain Scale score was significantly lower in the patellofemoral degenerative group as compared with the nondegenerative group among the OWHTO group (81.6 vs 76.4; P = .039); among the CWHTO group, there was a lower tendency in the degenerative group, but this was without significance (81.1 vs 79.6; P = .367). CONCLUSION Patellofemoral cartilage degeneration progressed after CWHTO and OWHTO with large alignment correction. High tibial osteotomy should be selected with careful consideration of the osteoarthritic status of the patellofemoral joint and required correction angle, regardless of applying a closed- or open-wedge technique.
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Affiliation(s)
- Sang Jun Song
- Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Kyoung Ho Yoon
- Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Cheol Hee Park
- Department of Orthopaedic Surgery, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
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