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Zheng T, Du L, Chu Z, Li L, Li B, Zhang B, Li X, Liu P, Lu Q. Unicompartmental knee arthroplasty combined with posterior cruciate ligament reconstruction: a case report. BMC Musculoskelet Disord 2024; 25:370. [PMID: 38730370 PMCID: PMC11088125 DOI: 10.1186/s12891-024-07492-0] [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: 12/18/2023] [Accepted: 05/03/2024] [Indexed: 05/12/2024] Open
Abstract
BACKGROUND In this study, we present the unique case of a patient with knee osteoarthritis (OA) of the medial compartment and posterior cruciate ligament (PCL) deficiency who underwent simultaneous medial unicompartmental knee arthroplasty (UKA) and PCL reconstruction. CASE PRESENTATION A 49-year-old male patient presented with a 1-year history of pain and instability in the left knee. The patient had previously experienced a trauma-related injury to the PCL of the left knee that was left untreated. Imaging and physical examination confirmed the presence of left medial knee OA along with PCL rupture. To address these issues, the patient underwent UKA combined with PCL reconstruction. The patient's Lysholm score was 47 before surgery and 81 three months after surgery, the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score was 29 before surgery and 18 three months after surgery, and the International Knee Documentation Committee (IKDC) subjective score was 56.3 before surgery and 74.7 three months after surgery. Six months after surgery, the patient's gait returned to normal, and he was able to jog. CONCLUSION This case report presents the first instance of UKA combined with PCL reconstruction and introduces a novel treatment approach for patients suffering from medial knee OA and ligament injury.
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Affiliation(s)
- Tong Zheng
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250102, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250102, China
| | - Longzhuo Du
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250102, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250102, China
| | - Ziyue Chu
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250102, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250102, China
| | - Lei Li
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250102, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250102, China
| | - Binglong Li
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250102, China
- Cheeloo College of Medicine, Shandong University, Jinan, 250102, China
| | - Baoqing Zhang
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250102, China
| | - Xuezhou Li
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250102, China
| | - Peilai Liu
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250102, China
| | - Qunshan Lu
- Department of Orthopaedics, Qilu Hospital of Shandong University, Jinan, 250102, China.
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Marullo M, Tandogan RN, Kort N, Meena A, Attri M, Gomberg B, D'Ambrosi R. Trends in unicompartmental knee arthroplasty among 138 international experienced arthroplasty knee surgeons. Heliyon 2024; 10:e24307. [PMID: 38304773 PMCID: PMC10830546 DOI: 10.1016/j.heliyon.2024.e24307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 01/05/2024] [Accepted: 01/05/2024] [Indexed: 02/03/2024] Open
Abstract
Purpose Unicompartmental knee arthroplasty (UKA) is an established option for treating isolated unicompartmental knee osteoarthritis (OA), but controversies still exist about patient selection, indications, perioperative management and alignment goals. This survey was designed to understand the current trends of experienced arthroplasty knee surgeons performing UKA. Methods An online questionnaire was created with SurveyMonkey® to assess global tendencies in the utilization of UKA. A link to the survey was shared with all ESSKA (European Society for Sports Traumatology, Knee Surgery and Arthroscopy) members. The questionnaire consisted of free and multiple-choice questions and was divided into four sections: demographic information, the surgical activity of the respondents, indications for surgery and postoperative alignment goals. Results A total of 138 ESSKA members from 34 different countries completed the survey. A total of 81 % of the responders performed fewer than 50 UKAs per year; 53 % of UKAs represented less than 20 % of their knee replacements; 71 % used mainly or only fixed-bearing implants; 81 % performed UKA in a shorter time compared to TKA; and 61 % and 72 % were interested in custom-made UKA and robotics, respectively. Thirty-six percent considered a minimum postoperative alignment of 0° for medial UKA, and 32 % considered 10° as the maximum valgus deformity for lateral UKA. Fifty-five percent had no minimum age cut-off, 47 % had no BMI cut-off, and 57 % believed TKA was better than UKA in knees with concomitant high-grade patellofemoral OA. Approximately 50 % of the surgeons desired a coronal alignment that was the same as the predegeneration alignment. Conclusion A high level of agreement was reached regarding the following: preference for fixed-bearing UKAs, lower surgical time for UKA compared to TKA, interest in custom-made and robotic UKAs, no age and weight cut-off, TKA preferred in the presence of patellofemoral OA, and a final alignment goal of the predegenerative state both for medial and lateral. There was no agreement regarding length of stay, rehabilitation protocol, preoperative varus and valgus cut-off values, and treatment in cases of absence of anterior cruciate ligament or previous osteotomy.
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Affiliation(s)
| | - Reha N. Tandogan
- Department of Orthopaedics and Traumatology, Emsey Hospital, Istanbul, Turkey
- Department of Orthopaedics and Traumatology, Halic University Istanbul & Cankaya Orthopedics, Ankara, Turkey
| | | | - Amit Meena
- Gelenkpunkt – Sports and Joint Surgery, FIFA Medical Centre of Excellence, Innsbruck, Austria
| | - Manish Attri
- Central Institute of Orthopaedics, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Bruce Gomberg
- Northern Light Mercy Orthopaedics, Portland, ME, USA
| | - Riccardo D'Ambrosi
- IRCCS Ospedale Galeazzi – Sant’Ambrogio, Milan, Italy
- Università Degli Studi di Milano, Dipartimento di Scienze Biomediche per La Salute, Milan, Italy
| | - EKA Small Implants Focus Group
- IRCCS Ospedale Galeazzi – Sant’Ambrogio, Milan, Italy
- Department of Orthopaedics and Traumatology, Emsey Hospital, Istanbul, Turkey
- Department of Orthopaedics and Traumatology, Halic University Istanbul & Cankaya Orthopedics, Ankara, Turkey
- CortoClinics, Nederweert, Netherlands
- Gelenkpunkt – Sports and Joint Surgery, FIFA Medical Centre of Excellence, Innsbruck, Austria
- Central Institute of Orthopaedics, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
- Northern Light Mercy Orthopaedics, Portland, ME, USA
- Università Degli Studi di Milano, Dipartimento di Scienze Biomediche per La Salute, Milan, Italy
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Chan-Waï-Nam J, Fernandez M, Josse A, Dubrana F. Medial unilateral knee arthroplasty after high tibial osteotomy: A retrospective study of 41 cases. Orthop Traumatol Surg Res 2023; 109:103514. [PMID: 36513325 DOI: 10.1016/j.otsr.2022.103514] [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: 11/15/2021] [Revised: 05/01/2022] [Accepted: 05/16/2022] [Indexed: 12/14/2022]
Abstract
INTRODUCTION When medial knee osteoarthritis continues to get worse after a high tibial osteotomy (HTO) procedure, a subsequent total knee arthroplasty (TKA) is typically warranted. Medial unilateral knee arthroplasty (UKA) is not recommended. The aim of this study was to evaluate the outcomes of patients who underwent medial UKA after HTO. HYPOTHESIS Good results can be obtained with this procedure, as long as the postoperative valgus is not excessive. MATERIALS AND METHODS This was a retrospective, single-center study of patients operated between January 2005 and June 2019. The primary endpoint was the Oxford Knee Scale (OKS). The Knee injury and Osteoarthritis Outcome Score (KOOS) and the Western Ontario and McMaster Universities osteoarthritis index (WOMAC), range of motion and complications were the secondary endpoints. The average follow-up was 79 months. RESULTS Forty-one knees in 38 patients were analyzed. Four revisions with implant exchange (10%) were needed. Thirty-seven knees had a mean OKS of 20/60±8 (12-39). The mean flexion and extension amplitude were 123°±8° (110-140) and -1.5°±4 (-15-0), respectively. Eight patients had flexion and/or extension contractures. DISCUSSION Good functional and clinical outcomes in the medium term were achieved for the patients in this study who underwent UKA after HTO. These findings reinforce the good results reported in recent studies of UKA after HTO. LEVEL OF EVIDENCE IV, Retrospective study.
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Affiliation(s)
- Julie Chan-Waï-Nam
- Orthopedic Surgery Department, hôpital de la Cavale Blanche, boulevard Tanguy Prigent, 29200 Brest, France.
| | - Marie Fernandez
- Orthopedic Surgery Department, hôpital de la Cavale Blanche, boulevard Tanguy Prigent, 29200 Brest, France
| | - Antoine Josse
- Pediatric Surgery Department, Hospices civils de Lyon, hôpital mère-enfant, 3, quai des Célestins, 69002 Lyon, France
| | - Frédéric Dubrana
- Orthopedic Surgery Department, hôpital de la Cavale Blanche, boulevard Tanguy Prigent, 29200 Brest, France
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Screpis D, Piovan G, Baldini M, Amarossi A, Natali S, Iacono V, Gigante AP, Zorzi C. Higher activity level after opening wedge high tibial osteotomy compared to medial unicompartimental knee arthroplasty in a selected cohort of advanced age: A propensity score-matched analysis. Knee 2023; 40:183-191. [PMID: 36470195 DOI: 10.1016/j.knee.2022.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/07/2022] [Accepted: 11/03/2022] [Indexed: 12/05/2022]
Abstract
BACKGROUND High tibial osteotomy (HTO) and medial unicompartmental knee arthroplasty (mUKA) are accepted treatment for medial knee osteoarthritis (OA). Patients often present meeting indications for both procedures. The purpose of this study was to compare results after MOWHTO and UKA in a matched population of patients older than 50 years. METHOD A retrospective analysis searching for patients older than 50 years meeting indication both for UKA and MOWHTO was performed. A propensity score matching (PSM) based on demographics and clinical data was performed. Tegner activity scale (TAS), Lysholm knee score (LKS) and numeric rating scale for pain (NRS) were recorded prospectively prior to surgery, at 6 months and after a minimum of 4 years. RESULTS 64 UKA and 71 MOWHTO were found. Mean follow up was similar (54,05 ± 4,80 and 52,62 ± 3,91). A significant improvement was found in both groups for all outcomes at 6 months and at final follow up. PSM yielded 29 pairs. Patients treated with MOWHTO showed superior TAS scores at 6 months (3,41 ± 0,50 vs 3,10 ± 0,56; p < 0,05) and at final follow up (3,83 ± 0,80 vs 3,27 ± 0,59; p < 0,005). NRS and LKS were comparable between groups. CONCLUSIONS MOWHTO performed using an open wedge technique, with locking plate and a fast rehabilitation protocol guaranteed higher level of activity than UKA in patients older than 50 years. Difference is significant already at 6 months and last longer than 4 years. LEVEL OF EVIDENCE III.
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Affiliation(s)
- D Screpis
- IRCCS Ospedale Sacro Cuore - Don Calabria, Viale Luigi Rizzardi 4, Negrar di Valpolicella (VR), Italia
| | - G Piovan
- IRCCS Ospedale Sacro Cuore - Don Calabria, Viale Luigi Rizzardi 4, Negrar di Valpolicella (VR), Italia
| | - M Baldini
- Clinica Ortopedica Dell'adulto e Pediatrica, Università Politecnica Delle Marche, Via Tronto 10/A, Ancona (AN), Italia
| | - A Amarossi
- Department of Orthopedics and Trauma Surgery, University of Verona, Piazzale A. Stefani 1, 37136 Verona (VR), Italy
| | - S Natali
- IRCCS Ospedale Sacro Cuore - Don Calabria, Viale Luigi Rizzardi 4, Negrar di Valpolicella (VR), Italia.
| | - V Iacono
- IRCCS Ospedale Sacro Cuore - Don Calabria, Viale Luigi Rizzardi 4, Negrar di Valpolicella (VR), Italia
| | - A P Gigante
- Clinica Ortopedica Dell'adulto e Pediatrica, Università Politecnica Delle Marche, Via Tronto 10/A, Ancona (AN), Italia
| | - C Zorzi
- IRCCS Ospedale Sacro Cuore - Don Calabria, Viale Luigi Rizzardi 4, Negrar di Valpolicella (VR), Italia
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Legnani C, Parente A, Parente F, Ventura A. Medial unicompartmental knee replacement is a viable treatment option after failed high tibial osteotomy: a systematic review. EFORT Open Rev 2022; 7:569-575. [PMID: 35924648 PMCID: PMC9458945 DOI: 10.1530/eor-21-0133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Purpose Methods Results Conclusions
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Affiliation(s)
- Claudio Legnani
- IRCCS Istituto Ortopedico Galeazzi, Sports Traumatology and Minimally Invasive Articular Surgery Center, Milan Italy
| | - Andrea Parente
- IRCCS Istituto Ortopedico Galeazzi, Hip and Knee Arthroplasty Surgery Center, Milan, Italy
| | - Franco Parente
- IRCCS Istituto Ortopedico Galeazzi, Hip and Knee Arthroplasty Surgery Center, Milan, Italy
| | - Alberto Ventura
- IRCCS Istituto Ortopedico Galeazzi, Sports Traumatology and Minimally Invasive Articular Surgery Center, Milan Italy
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Unicompartmental vs. total knee replacement in patients with failed high tibial osteotomy. Arch Orthop Trauma Surg 2022; 142:2051-2056. [PMID: 34351470 DOI: 10.1007/s00402-021-04093-7] [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: 04/06/2021] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION The influence of a previous high tibial osteotomy (HTO) on the outcome and survival of a knee arthroplasty is a debated issue. The purpose of this study is to compare subjective, radiographic, and functional outcomes of unicompartmental knee replacement (UKR) and total knee replacement (TKR) after failed open wedge HTO. METHODS 26 post-HTO UKRs (group A) with an average follow-up of 7.8 years (range 2-13), and 33 post-HTO TKRs (group B) with an average follow-up of 11.2 years (range 4-16) operated between 2001 and 2017, were retrospectively reviewed. Assessment included Knee Society Score (KSS), University of California at Los Angeles Activity Score (UCLA), and Western Ontario and McMaster University Osteoarthritis Index (WOMAC). Standard knee X-rays, and long-standing X-rays were performed pre-operatively and at follow-up to evaluate prosthesis survival, coronal alignment, and patellar height. RESULTS Improvements regarding KSS, UCLA and WOMAC scores were noted at follow-up in both groups compared to pre-operatory status (p < 0.001). No statistically significant differences in clinical and functional postoperative scores were reported between groups (p = n.s.) at follow-up. Group B presented a more neutral mean mechanical axis of 0.5° compared to 2.7° in Group A (p < 0.001). CONCLUSIONS Performing UKR after previous failed HTO is a safe and effective procedure which leads to clinical, radiological and functional outcomes comparable to TKR after HTO.
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许 康, 童 也, 赵 鹏, 周 烨, 石 少. [Comparison of two osteotomies in the treatment of medial compartment osteoarthritis]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2021; 35:1440-1448. [PMID: 34779171 PMCID: PMC8586778 DOI: 10.7507/1002-1892.202107075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/14/2021] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To compare the effectiveness of modified distal tibial tubercle-high tibial osteotomy (DTT-HTO) and open-wedge HTO (OWHTO) in the treatment of medial compartment osteoarthritis. METHODS A clinical data of 80 patients with medial compartment osteoarthritis treated with HTO between January 2016 and January 2019 was retrospectively analyzed, including 40 patients treated with DTT-HTO (DTT-HTO group) and 40 patients treated with OWHTO (OWHTO group). There was no significant difference in gender, age, body mass index, affected side, disease duration, Kellgren-Lawrence grading of osteoarthritis, and preoperative knee society score (KSS), Hospital for Special Surgery (HSS) score, knee joint visual analogue scale (VAS) score, hip-knee-ankle angle (HKA), posterior tibial slope (PTS), weight-bearing line ratio (WBL), Blackburne-Peel index (BPI), Caton-Deschamps index (CDI), and Insall-Salvati index (ISI) between the two groups ( P>0.05). The operation time, incision length, bleeding volume, hospital stay, and complications in both groups were recorded. The KSS, HSS, and VAS scores were used to evaluated the effectiveness. A self-made questionnaire was used to evaluate the recovery of low-impact sports ability of the knee. X-ray films were used to observe the osteotomy healing and measure the HKA, PTS, WBL, and the patellar height indexes (BPI, CDI, ISI). RESULTS All operations successfully completed in both groups. The OWHTO group operated longer than the DTT-HTO group ( P<0.05). There was no significant difference in the incision length, bleeding volume, and hospital stay between the two groups ( P>0.05). All incisions healed by first intention in both groups. There were 2 cases of lateral hinge fractures in the OWHTO group, and 1 case of lateral hinge fracture and 2 cases of tibial plateau fractures in the DTT-HTO group. No other complications occurred. The patients in both groups were followed up 2-4 years with an average of 2.8 years. The HSS, KSS, and VAS scores in both groups significantly improved after operation when compared with preoperative scores ( P<0.05). All scores gradually improved with the time and there were significant differences between different time points ( P<0.05). The HSS, KSS, and VAS scores were significantly better in the DTT-HTO group than in the OWHTO group at 3 months after operation ( P<0.05). There was no significant difference between the two groups at 6 months, 1 year, and 2 years ( P>0.05). At 1 year, the low-impact sports ability of the OWHTO group was rated as excellent in 8 cases, general in 25 cases, and poor in 7 cases, and as excellent in 7 cases, general in 26 cases, and poor in 7 cases of the DTT-HTO group. There was no significant difference between the two groups ( Z=-0.715, P=0.475). X-ray film reexamination showed that the osteotomies healed in both groups. The healing time was (4.52±1.23) months in the OWHTO group, and (4.23±1.56) months in the DTT-HTO group, showing no significant difference ( t=0.923, P=0.359). At immediate after operation, the HKA and WBL of the two groups significantly improved when compared with the preoperative values ( P<0.05). However, the pre- and post-operational difference was not significant between the two groups ( P>0.05). The PTS of the OWHTO group was significantly higher than preoperative value ( P<0.05), while the PTS of the DTT-HTO group was lower than preoperative value ( P>0.05). The pre- and post-operational difference between the two groups was significant ( P<0.05). BPI and CDI in the OWHTO group were significantly lower than preoperative values ( P<0.05), but there was no significant difference in ISI when compared with preoperative value ( P>0.05). There was no significant difference in the BPI, CDI, and ISI of the DTT-HTO group between pre- and post-operation ( P>0.05). The pre- and post-operational differences of BPI and CDI between the two groups were significant ( P<0.05), and there was no significant difference in the pre- and post-operational difference of ISI ( P>0.05). CONCLUSION The two osteotomies in the treatment of medial compartment osteoarthritis can significantly change the varus deformity and achieve satisfactory effectiveness. The early functional recovery of DTT-HTO is faster, which can avoid the increased PTS and patellar baja of traditional OWHTO. However, neither of the two surgical procedures can restore the patient's ideal low-impact sports ability of the knee.
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Affiliation(s)
- 康永 许
- 安徽医科大学附属宿州医院骨科(安徽宿州 234000)Department of Orthopedics, Suzhou Hospital Affiliated to Anhui Medical University, Suzhou Anhui, 234000, P.R.China
| | - 也 童
- 安徽医科大学附属宿州医院骨科(安徽宿州 234000)Department of Orthopedics, Suzhou Hospital Affiliated to Anhui Medical University, Suzhou Anhui, 234000, P.R.China
| | - 鹏 赵
- 安徽医科大学附属宿州医院骨科(安徽宿州 234000)Department of Orthopedics, Suzhou Hospital Affiliated to Anhui Medical University, Suzhou Anhui, 234000, P.R.China
| | - 烨 周
- 安徽医科大学附属宿州医院骨科(安徽宿州 234000)Department of Orthopedics, Suzhou Hospital Affiliated to Anhui Medical University, Suzhou Anhui, 234000, P.R.China
| | - 少辉 石
- 安徽医科大学附属宿州医院骨科(安徽宿州 234000)Department of Orthopedics, Suzhou Hospital Affiliated to Anhui Medical University, Suzhou Anhui, 234000, P.R.China
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Yang G, Jiao X, Li Q, Li Z, An S, Feng M, Gao G, Huang J, Cao G. Hybrid Oxford unicompartmental knee arthroplasty has lower residual cement extrusion than cemented arthroplasty in treating end-stage unicompartmental knee osteoarthritis. BMC Musculoskelet Disord 2021; 22:833. [PMID: 34587940 PMCID: PMC8479987 DOI: 10.1186/s12891-021-04720-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 09/17/2021] [Indexed: 11/10/2022] Open
Abstract
Background Hybrid Oxford unicompartmental knee arthroplasty (OUKA) consists of cementless femoral prostheses and cemented tibial prostheses. Although a hybrid OUKA has been used in clinical practice, the clinical outcome has not been reported. The purpose of this study was to compare the short-term clinical outcomes and rate of residual bone cement extrusion between hybrid and cemented prostheses and analyse the possible reasons for differences between outcomes. Methods A total of 128 knees (118 patients) with end-stage osteoarthritis were included in this study, of which underwent consecutive operations using unicondylar Oxford phase 3 implants from July 2017 and September 2019 in our centre. Follow-up was performed at 6 weeks, 3 and 6 months, 1 year and every year after operation, and complications and changes in the Oxford knee score (OKS) were recorded. The OKS of the two groups was analysed by the generalized estimating equation approach. Prosthesis-based standard fluoroscopy was performed in a timely manner after each operation, and the rate of residual cement extrusion of the two groups was estimated using T-tests and a multivariate regression analysis. Results Excluding the cases that lost follow-up, a total of 120 knees (65 in hybrid group and 55 in cemented group) were included in the analysis. There was no statistically significant difference in patient characteristics between the two groups (p > 0.05). The average follow-up time was 23.4 months (and ranged from 12 to 38 months). As of the last follow-up, there were no complications, such as dislocation, fracture, prosthesis loosening and subsidence, but one patient in the cemented group experienced symptoms caused by residual loose cement. Postoperative OKS in both groups improved significantly (p < 0.001). There was no significant difference in the OKS at any point during the follow-up or in the improvement of the OKS between the two groups (p > 0.05). Residual cement was mainly extruded behind the tibial prosthesis. The rate of hybrid periprosthetic residual cement extrusion was significantly lower in the hybrid group than in the cemented group, and the difference was statistically significant (OR = 3.38; p = 0.014). Conclusions Hybrid OUKA is as effective as cemented OUKA in the short term after operation and can significantly reduce the residual cement extrusion rate around the tibial prosthesis.
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Affiliation(s)
- Guangzhong Yang
- Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, 100032, China
| | - Xufeng Jiao
- Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, 100032, China
| | - Qianli Li
- Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, 100032, China
| | - Zheng Li
- Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, 100032, China
| | - Shuai An
- Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, 100032, China
| | - Mingli Feng
- Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, 100032, China
| | - Guanghan Gao
- Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, 100032, China
| | - Jiang Huang
- Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, 100032, China
| | - Guanglei Cao
- Xuanwu Hospital of Capital Medical University, 45 Changchun Street, Xicheng District, Beijing, 100032, China.
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