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Gaggiotti S, Foissey C, Pineda T, Batailler C, Gaggiotti G, Gaggiotti S, Servien E, Lustig S. Enhancing robotic precision in medial UKA: Image-based robot-assisted system had higher accuracy in implant positioning than imageless robot-assisted system across 292 knees. Knee Surg Sports Traumatol Arthrosc 2024; 32:2097-2106. [PMID: 38690988 DOI: 10.1002/ksa.12215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/09/2024] [Accepted: 04/14/2024] [Indexed: 05/03/2024]
Abstract
PURPOSE The objective of this study was to compare the degree of accuracy in implant positioning and limb alignment offered by two robot-assisted (RA) systems: an image-based robot-assisted (IBRA) versus an imageless robot-assisted (ILRA) system for the treatment of medial knee osteoarthritis with unicompartmental knee arthroplasty (UKA). METHODS This retrospective radiographic study included medial UKAs performed between 2011 and 2023. Radiographic measurements taken preoperatively and at 1-year postoperative control visit focusing on hip-knee-ankle angle (HKA), posterior tibial slope (PTS), tibial component coronal alignment relative to Cartier's angle and restoration of proper joint line (JL) height were analyzed. Outliers for postoperative measurements were defined as follows: HKA <175° or >180°, PTS <2° or >8°, >3° or <-3° alterations in Cartier's angle and ±2 mm changes in the height of the joint line. RESULTS The final sample consisted of 292 medial UKAs: 95 (32.5%) with an IBRA system and 197 (67.5%) with an ILRA system. Implant positioning and limb alignment were more accurate in the group of patients treated with IBRA, HKA (77.9% vs. 67.5%, p = 0.07), PTS (93.7% vs. 82.7%, p = 0.01), restoration of tibial varus relative to Cartier's angle (87.4% vs. 65%, p < 0.001) and restoration of JL height (81.1% vs. 69.5%, p = 0.04). CONCLUSION Medial UKA surgery using an IBRA system was associated with a higher degree of accuracy in implant positioning and postoperative limb alignment as compared to an ILRA system. This is a valuable contribution to help communicate the advantages of using this surgical technique and improve its reproducibility. LEVEL OF EVIDENCE Level III, Retrospective cohort study.
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Affiliation(s)
- Stefano Gaggiotti
- COT Rafaela - COT Santa Fe, Rafaela-Santa Fe, Argentina
- Sanatorio Mayo, Santa Fe, Argentina
| | - Constant Foissey
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
| | | | - Cécile Batailler
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
| | - Gabriel Gaggiotti
- COT Rafaela - COT Santa Fe, Rafaela-Santa Fe, Argentina
- Sanatorio Mayo, Santa Fe, Argentina
| | - Santino Gaggiotti
- COT Rafaela - COT Santa Fe, Rafaela-Santa Fe, Argentina
- Sanatorio Mayo, Santa Fe, Argentina
| | - Elvire Servien
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
- EA 7424, Interuniversity Laboratory of Human Movement Science, Université Lyon 1, Lyon, France
| | - Sébastien Lustig
- Department of Orthopedic Surgery and Sport Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
- IFSTTAR, LBMC UMR_T9406, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
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Anjiki K, Hiranaka T, Tanaka T, Fujishiro T, Okamoto K, Hayashi S, Kuroda R, Matsumoto T. Prediction of Postoperative Range of Motion after Mobile-Bearing Medial Unicompartmental Knee Arthroplasty from the Preoperative Range of Motion and Other Preoperative Factors. J Knee Surg 2024; 37:687-692. [PMID: 38437882 DOI: 10.1055/a-2280-9851] [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] [Indexed: 03/06/2024]
Abstract
Postoperative flexion after unicompartmental knee arthroplasty might be predicted from the preoperative range of motion and other preoperative factors, but this has not been sufficiently investigated. Between 2013 and 2017, 198 patients (198 knees) underwent unilateral knee arthroplasty with medial mobile-bearing unicompartmental knee arthroplasty. Range of motion was measured preoperatively and at the time of final follow-up. To investigate the accuracy of the prediction of preoperative to postoperative gain or loss of the flexion angle, we performed receiver operating characteristic analysis. Logistic regression analysis was used to evaluate other predictive factors. Change in flexion angle was significantly strongly and negatively correlated with the preoperative flexion angle (R = - 0.688; 95% confidence interval: -0.755 to -0.607; p < 0.001). Preoperative flexion angle was suggested to be a significant predictor of gain or loss of the flexion angle with the area under the curve of 0.781; the cutoff value calculated using the Youden index was 140 degrees. Logistic regression analysis showed that in addition to the preoperative flexion angle of the operated side, the postoperative flexion range was significantly affected by the patient's height and by the preoperative flexion angle of the contralateral knee. If the preoperative flexion angle in Oxford mobile-bearing medial unicompartmental knee arthroplasty is <140 degrees, the postoperative flexion angle may be improved; if it exceeds 140 degrees, the postoperative flexion angle may worsen. This predictive ability is further improved by consideration of the patient's height and the range of motion on the contralateral side.
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Affiliation(s)
- Kensuke Anjiki
- Department of Orthopaedic Surgery, Takatsuki General Hospital, Takatsuki Osaka, Japan
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Takafumi Hiranaka
- Department of Orthopaedic Surgery, Takatsuki General Hospital, Takatsuki Osaka, Japan
| | - Toshikazu Tanaka
- Department of Orthopaedic Surgery, Takatsuki General Hospital, Takatsuki Osaka, Japan
| | - Takaaki Fujishiro
- Department of Orthopaedic Surgery, Takatsuki General Hospital, Takatsuki Osaka, Japan
| | - Koji Okamoto
- Department of Orthopaedic Surgery, Takatsuki General Hospital, Takatsuki Osaka, Japan
| | - Shinya Hayashi
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Tomoyuki Matsumoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, Kobe, Japan
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Gaggiotti S, Foissey C, Rossi V, Batailler C, Gaggiotti G, Gaggiotti S, Servien E, Lustig S. Valgus stress knee radiographs accurately anticipate the bone resection in medial unicompartmental knee arthroplasty: Protocol validation using an image-based robotic system. Knee Surg Sports Traumatol Arthrosc 2024. [PMID: 39031664 DOI: 10.1002/ksa.12322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 06/02/2024] [Accepted: 06/07/2024] [Indexed: 07/22/2024]
Abstract
PURPOSE The objective of this study was to describe a planning method for medial unicompartmental knee arthroplasty (UKA) implantation using preoperative stress radiographs to measure the thickness of tibial and femoral bone resections and to validate this method with data from an image-based robotic surgery system. Having such method for preoperative planning would be of interest for surgeons performing UKA in order to anticipate optimal bone resection on both tibia and femoral sides. METHODS A new planning method for medial UKA based on valgus stress knee radiographs validated it with an image-based robotic surgery system (Restoris MCK, MAKO®, Stryker Corporation) was proposed. This retrospective study involved radiographic measurements of 76 patients who underwent image-based robotic medial UKA between April 2022 and February 2023. Preoperative anteroposterior stress radiographs of the knee were used to simulate UKA implantation. The UKA technique was based on Cartier's angle and aimed at restoring the joint line. The total dimension measured was 14 mm (8 mm for minimal tibial component and polyethylene insert + 4 mm for femoral component + 2 mm for safety laxity). Bone resections were measured in the preoperative valgus stress radiographs and then against the intraoperative bone resection data provided by the robotic system. Inter- and intra-observer reliability was assessed using 25 measurements. RESULTS The mean planned tibial resection measured in the radiographs was 4.3 ± 0.4 [2.9-5.8], while the mean robotic resection was 4.2 ± 0.5 [2.7-5.8] (mean difference = 0.15 mm, 95% confidence interval [CI] [-0.27 to 0.57]). There was a strong correlation between these two values (Pearson's rank R = 0.79, p < 0.001). Intra- and inter-observer reliability were also very strong (Pearson's rank R = 0.91, p < 0.001, and Pearson's rank R = 0.82, p < 0.001, respectively). The mean planned femoral bone resection measured in the radiographs was 2.7 ± 0.7 mm [1-4.5], while the mean robotic resection was 2.5 ± 0.9 [1-5] (mean difference = 0.21 mm, 95% CI [-0.66 to 1.08]). There was a strong correlation between these two values (Pearson's rank R = 0.82, p < 0.001). Intra- and inter-observer reliability were also strong (Pearson's rank R = 0.88, p < 0.001, and Pearson's rank R = 0.84, p < 0.001, respectively). CONCLUSION This study describes and validates with robotic information a simple and reproducible preoperative planning method to determine femoral and tibial bone resection for medial UKA implantation using antero-posterior valgus stress knee radiographs, leaving a medial safety laxity of 2 mm. It represents a very valuable contribution to the understanding of UKA principles, which can serve to extend its indications and increase reproducibility of the surgical technique. LEVEL OF EVIDENCE III. Retrospective cohort study.
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Affiliation(s)
- Stefano Gaggiotti
- COT Rafaela - COT Santa Fe, Rafaela, Santa Fe, Argentina
- Sanatorio Mayo, Santa Fe, Argentina
| | - Constant Foissey
- Department of Orthopedic Surgery and Sports Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
| | - Valentina Rossi
- A.O.U. Azienda Ospedaliera Universitaria Federico II di Napoli, Napoli, Italy
| | - Cecile Batailler
- Department of Orthopedic Surgery and Sports Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
| | - Gabriel Gaggiotti
- COT Rafaela - COT Santa Fe, Rafaela, Santa Fe, Argentina
- Sanatorio Mayo, Santa Fe, Argentina
| | - Santino Gaggiotti
- COT Rafaela - COT Santa Fe, Rafaela, Santa Fe, Argentina
- Sanatorio Mayo, Santa Fe, Argentina
| | - Elvire Servien
- Department of Orthopedic Surgery and Sports Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
- EA 7424, Interuniversity Laboratory of Human Movement Science, Université Lyon 1, Lyon, France
| | - Sebastien Lustig
- Department of Orthopedic Surgery and Sports Medicine, Croix-Rousse Hospital, FIFA Medical Center of Excellence, Lyon, France
- IFSTTAR, LBMC UMR_T9406, Université de Lyon, Université Claude Bernard Lyon 1, Lyon, France
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Springborg AH, Jensen CB, Gromov K, Troelsen A, Kehlet H, Foss NB. Acute postoperative pain and catastrophizing in unicompartmental knee arthroplasty: a prospective, observational, single-center, cohort study. Reg Anesth Pain Med 2024:rapm-2024-105503. [PMID: 38839429 DOI: 10.1136/rapm-2024-105503] [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: 03/22/2024] [Accepted: 05/28/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND AND OBJECTIVES Pain catastrophizing is associated with acute pain after total knee arthroplasty. However, the association between pain catastrophizing and acute pain after unicompartmental knee arthroplasty (UKA) remains unclear. METHODS We investigated the incidence of predicted high-pain and low-pain responders, based on a preoperative Pain Catastrophizing Scale score >20 or ≤20, respectively, and the acute postoperative pain course in both groups. Patients undergoing UKA were consecutively included in this prospective observational cohort study. Pain at rest and during walking (5 m walk test) was evaluated preoperatively, at 24 hours postoperatively, and on days 2-7 using a pain diary. RESULTS 125 patients were included, with 101 completing the pain diary. The incidence of predicted high-pain responders was 31% (95% CI 23% to 40%). The incidence of moderate to severe pain during walking at 24 hours postoperatively was 69% (95% CI 52% to 83%) in predicted high-pain responders and 66% (95% CI 55% to 76%) in predicted low-pain responders; OR 1.3 (95% CI 0.5 to 3.1). The incidence of moderate to severe pain at rest 24 hours postoperatively was 49% (95% CI 32% to 65%) in predicted high-pain responders and 28% (95% CI 19% to 39%) in predicted low-pain responders; OR 2.6 (95% CI 1.1 to 6.1; p=0.03). Pain catastrophizing was not associated with increased cumulated pain during walking on days 2-7. CONCLUSIONS The incidence of predicted high-pain responders in UKA was slightly lower than reported in total knee arthroplasty. Additionally, preoperative pain catastrophizing was not associated with acute postoperative pain during walking.
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Affiliation(s)
| | | | - Kirill Gromov
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Orthopaedics, Hvidovre Hospital, Hvidovre, Denmark
| | - Anders Troelsen
- Department of Orthopedic Surgery, Hvidovre Hospital, Hvidovre, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Henrik Kehlet
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Section of Surgical Pathophysiology, Rigshospitalet, Copenahagen, Denmark
| | - Nicolai Bang Foss
- Department of Anesthesiology, Hvidovre Hospital, Hvidovre, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Nakano N, Tsubosaka M, Kamenaga T, Kuroda Y, Ishida K, Hayashi S, Kuroda R, Matsumoto T. Predicting postoperative coronal alignment after fixed-bearing unicompartmental knee arthroplasty using a new morphological assessment method: the arithmetic hip-knee-ankle angle. INTERNATIONAL ORTHOPAEDICS 2024; 48:889-897. [PMID: 38150005 PMCID: PMC10933208 DOI: 10.1007/s00264-023-06072-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/10/2023] [Indexed: 12/28/2023]
Abstract
PURPOSE Only a few reports have been published so far on factors that predict postoperative coronal alignment after unicompartmental knee arthroplasty (UKA). The purpose of this study is to clarify the relationship between the arithmetic hip-knee-ankle angle (aHKA) and postoperative coronal alignment after medial fixed-bearing UKA. METHODS One hundred and one consecutive patients (125 knees) who underwent medial fixed-bearing UKA were assessed. Pre- and postoperative coronal HKA angles, lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA), and the thickness of the tibial and femoral bone cut were measured. aHKA was calculated as 180° - LDFA + MPTA. Correlations between postoperative HKA angle and aHKA, LDFA, and MPTA were investigated by single regression analysis. After the patients were divided into three groups according to the postoperative HKA angle, i.e., HKA angle > 180°, 175° < HKA angle ≤ 180°, and HKA angle ≤ 175°, aHKA, LDFA, MPTA, preoperative HKA angle, and the thickness of the distal femoral as well as tibial bone cut were compared among the three groups. RESULTS aHKA and MPTA were positively correlated with postoperative HKA angle, while no correlation was found between postoperative HKA angle and LDFA. Among the three groups classified by postoperative HKA angle, significant differences were found in aHKA, MPTA, and preoperative HKA angle, while no significant difference was found in LDFA and the amount of distal femoral and tibial osteotomies. CONCLUSIONS aHKA was correlated with postoperative HKA angle after medial fixed-bearing UKA, which was probably due to the influence of MPTA.
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Affiliation(s)
- Naoki Nakano
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-Cho, Chuo-Ku, Kobe, Hyogo, 650-0017, Japan.
| | - Masanori Tsubosaka
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-Cho, Chuo-Ku, Kobe, Hyogo, 650-0017, Japan
| | - Tomoyuki Kamenaga
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-Cho, Chuo-Ku, Kobe, Hyogo, 650-0017, Japan
| | - Yuichi Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-Cho, Chuo-Ku, Kobe, Hyogo, 650-0017, Japan
| | - Kazunari Ishida
- Department of Orthopaedic Surgery, Kobe Kaisei Hospital, 3-11-15, Shinoharakita-Machi, Nada-Ku, Kobe, Hyogo, 657-0068, Japan
| | - Shinya Hayashi
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-Cho, Chuo-Ku, Kobe, Hyogo, 650-0017, Japan
| | - Ryosuke Kuroda
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-Cho, Chuo-Ku, Kobe, Hyogo, 650-0017, Japan
| | - Tomoyuki Matsumoto
- Department of Orthopaedic Surgery, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-Cho, Chuo-Ku, Kobe, Hyogo, 650-0017, Japan
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Cornish BM, Diamond LE, Saxby DJ, Lloyd DG, Shi B, Lyon J, Abbruzzese K, Gallie P, Maharaj J. Sagittal plane knee kinematics can be measured during activities of daily living following total knee arthroplasty with two IMU. PLoS One 2024; 19:e0297899. [PMID: 38359050 PMCID: PMC10868843 DOI: 10.1371/journal.pone.0297899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 01/16/2024] [Indexed: 02/17/2024] Open
Abstract
Knee function is rarely measured objectively during functional tasks following total knee arthroplasty. Inertial measurement units (IMU) can measure knee kinematics and range of motion (ROM) during dynamic activities and offer an easy-to-use system for knee function assessment post total knee arthroplasty. However, IMU must be validated against gold standard three-dimensional optical motion capture systems (OMC) across a range of tasks if they are to see widespread uptake. We computed knee rotations and ROM from commercial IMU sensor measurements during walking, squatting, sit-to-stand, stair ascent, and stair descent in 21 patients one-year post total knee arthroplasty using two methods: direct computation using segment orientations (r_IMU), and an IMU-driven iCloud-based interactive lower limb model (m_IMU). This cross-sectional study compared computed knee angles and ROM to a gold-standard OMC and inverse kinematics method using Pearson's correlation coefficient (R) and root-mean-square-differences (RMSD). The r_IMU and m_IMU methods estimated sagittal plane knee angles with excellent correlation (>0.95) compared to OMC for walking, squatting, sit-to-stand, and stair-ascent, and very good correlation (>0.90) for stair descent. For squatting, sit-to-stand, and walking, the mean RMSD for r_IMU and m_IMU compared to OMC were <4 degrees, < 5 degrees, and <6 degrees, respectively but higher for stair ascent and descent (~12 degrees). Frontal and transverse plane knee kinematics estimated using r_IMU and m_IMU showed poor to moderate correlation compared to OMC. There were no differences in ROM measurements during squatting, sit-to-stand, and walking across the two methods. Thus, IMUs can measure sagittal plane knee angles and ROM with high accuracy for a variety of tasks and may be a useful in-clinic tool for objective assessment of knee function following total knee arthroplasty.
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Affiliation(s)
- Bradley M. Cornish
- Griffith Centre of Biomedical and Rehabilitation Engineering, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
- School of Health Sciences and Social Work, Griffith University, Gold Coast, Queensland, Australia
| | - Laura E. Diamond
- Griffith Centre of Biomedical and Rehabilitation Engineering, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
- School of Health Sciences and Social Work, Griffith University, Gold Coast, Queensland, Australia
| | - David John Saxby
- Griffith Centre of Biomedical and Rehabilitation Engineering, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
- School of Health Sciences and Social Work, Griffith University, Gold Coast, Queensland, Australia
| | - David G. Lloyd
- Griffith Centre of Biomedical and Rehabilitation Engineering, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
- School of Health Sciences and Social Work, Griffith University, Gold Coast, Queensland, Australia
| | - Beichen Shi
- Griffith Centre of Biomedical and Rehabilitation Engineering, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
- School of Health Sciences and Social Work, Griffith University, Gold Coast, Queensland, Australia
| | - Jenna Lyon
- Stryker Corporation, Kalamazoo, Michigan, Unites States of America
| | - Kevin Abbruzzese
- Stryker Corporation, Kalamazoo, Michigan, Unites States of America
| | - Price Gallie
- Coast Orthopaedics and Sports Medicine, Gold Coast, Queensland, Australia
| | - Jayishni Maharaj
- Griffith Centre of Biomedical and Rehabilitation Engineering, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
- School of Health Sciences and Social Work, Griffith University, Gold Coast, Queensland, Australia
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Kong L, Lin W, Kang H, Li M, Hao K, Chang B, Wang F. The effect of femoral prosthesis design on patellofemoral contact stresses in total knee arthroplasty: a case-control study with mid-term follow-up minimum 3-year follow-up. J Orthop Surg Res 2023; 18:781. [PMID: 37853479 PMCID: PMC10583349 DOI: 10.1186/s13018-023-04287-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/14/2023] [Indexed: 10/20/2023] Open
Abstract
BACKGROUND To investigate the differences in postoperative patellofemoral pressures and patellar tracking during at least three years of follow-up in patients using three prostheses of different designs in total knee arthroplasty (TKA) without patellar resurfacing. METHODS RADIOGRAPHIC INVESTIGATIONS: The study included 401 patients who had a total of 480 knee prostheses implanted without patellar resurfacing. The prostheses used were Genesis II (external rotation design of femoral prosthesis), Triathlon (design with deep trochlear grooves), and Gemini MK II (deepening of trochlear groove and lateral condylar protrusion that closely follows the anatomical shape). The patients' patellar tracking was assessed by measuring patellar tilt and displacement during postoperative follow-up. Furthermore, postoperative knee function and pain were evaluated through range of motion, Knee Society scores (KSS), and Forgotten Joint Score (FJS) to compare the different groups. FINITE ELEMENT ANALYSIS Constructing a finite element model of the knee joint of a normal volunteer after total knee arthroplasty using different prostheses for nonpatellar replacement. The three models' von Mises stress distribution heat map, peak contact pressure, and patellar transverse displacement were compared at 30°, 60°, and 90°, respectively. RESULTS RADIOGRAPHIC INVESTIGATIONS: A total of 456 knees of 384 patients were investigated at a 3-year follow-up after TKA without patellar resurfacing. There were no significant differences in patellar tracking between the three groups. Patients with all three prostheses demonstrated favorable clinical outcomes at 3 years postoperatively, with no statistically significant differences in knee scores (91.9 vs 92.3 vs 91.8) or range of motion (127.9° vs 128.5° vs 127.7°) between the groups. However, there was a significant difference between Genesis II and Gemini MK II in the Forgotten Joint Score (59.7 vs 62.4). Patients with persistent postoperative anterior knee pain were present in all three groups (16 vs 12 vs 10), but the incidence was not significantly different. FINITE ELEMENT ANALYSIS The von Mises stress distribution heat map showed that during flexion, the patellofemoral stresses were mainly concentrated on the lateral side of the prosthesis side, and the contact site gradually shifted downward with increasing flexion angle. At the same time, the peak contact stress of the patellofemoral joint increased with the gradual increase in the flexion angle. Genesis II, with a wider and shallower trochlear groove, showed greater patellofemoral stresses and lateral patellar displacement after TKA without patellar resurfacing. The Gemini MK II with a deeper trochlear groove and slightly protruding lateral condyle is more in line with anatomical design, with smaller patellofemoral joint pressure and better patellar tracking. CONCLUSIONS In TKA without patellar resurfacing, a prosthesis with a deeper trochlear groove, a slightly higher lateral femoral condyle, and a more anatomically designed knee that better matches the patellar morphology should be a better choice.
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Affiliation(s)
- Lingce Kong
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Wei Lin
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Huijun Kang
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Ming Li
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Kuo Hao
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Bo Chang
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Fei Wang
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
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Xie T, Brouwer RW, van den Akker-Scheek I, van der Veen HC. Clinical relevance of joint line obliquity after high tibial osteotomy for medial knee osteoarthritis remains controversial: a systematic review. Knee Surg Sports Traumatol Arthrosc 2023; 31:4355-4367. [PMID: 37340220 PMCID: PMC10471655 DOI: 10.1007/s00167-023-07486-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 06/07/2023] [Indexed: 06/22/2023]
Abstract
PURPOSE To systematically review the literature on the association between knee joint line obliquity (KJLO) and clinical outcome after high tibial osteotomy (HTO) for medial knee osteoarthritis and summarize the KJLO cut-off value used when studying this association. METHODS A systematic search was conducted in three databases (PubMed, Embase, and Web of Science) on September 2022, updated on February 2023. Eligible studies describing postoperative KJLO in relation to clinical outcome after HTO for medial knee osteoarthritis were included. Nonpatient studies and conference abstracts without full-text were excluded. Two independent reviewers assessed title, abstract and full-text based on the inclusion and exclusion criteria. The modified Downs and Black checklist was used to assess the methodological quality of each included study. RESULTS Of the seventeen studies included, three had good methodological quality, thirteen fair quality, and one had poor quality. Conflicting findings were shown on the associations between postoperative KJLO and patient-reported outcome, medial knee cartilage regeneration, and 10-year surgical survival in sixteen studies. Three good-quality studies found no significant differences in lateral knee cartilage degeneration between postoperative medial proximal tibial angle > 95° and < 95°. Joint line orientation angles by the tibial plateau of 4° and 6°, joint line orientation angle by the middle knee joint space of 5°, medial proximal tibial angles of 95° and 98°, and Mikulicz joint line angle of 94° were KJLO cut-off values used in the included studies. CONCLUSION Based on current evidence, the actual association between postoperative KJLO and clinical consequences after HTO for medial knee osteoarthritis cannot be ascertained. The clinical relevance of KJLO after HTO remains controversial. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Tianshun Xie
- Department of Orthopaedic Surgery, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
| | - Reinoud W Brouwer
- Department of Orthopaedic Surgery, Martini Hospital, Groningen, The Netherlands
| | - Inge van den Akker-Scheek
- Department of Orthopaedic Surgery, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| | - Hugo C van der Veen
- Department of Orthopaedic Surgery, University of Groningen, University Medical Center Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
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Batailler C, Lording T, Naaim A, Servien E, Cheze L, Lustig S. No difference of gait parameters in patients with image-free robotic-assisted medial unicompartmental knee arthroplasty compared to a conventional technique: early results of a randomized controlled trial. Knee Surg Sports Traumatol Arthrosc 2023; 31:803-813. [PMID: 33839803 DOI: 10.1007/s00167-021-06560-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 03/30/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE In recent studies, robotic-assisted surgical techniques for unicompartmental knee arthroplasty (UKA) have demonstrated superior implant positioning and limb alignment compared to a conventional technique. However, the impact of the robotic-assisted technique on clinical and functional outcomes is less clear. The aim of this study was to compare the gait parameters of UKA performed with conventional and image-free robotic-assisted techniques. METHODS This prospective, single-center study included 66 medial UKA, randomized to a robotic-assisted (n = 33) or conventional technique (n = 33). Gait knee kinematics was assessed on a treadmill at 6 months to identify changes in gait characteristics (walking speed, each degree-of-freedom: flexion-extension, abduction-adduction, internal-external rotation, and anterior-posterior displacement). Clinical results were assessed at 6 months using the IKS score and the Forgotten Joint Score. Implants position was assessed on post-operative radiographs. RESULTS Post-operatively, the whole gait cycle was not significantly different between groups. In both groups, there was a significant improvement in varus deformity between the pre- and post-operative gait cycle. There was no significant difference between the two groups in clinical scores, implant position, revision, and complication rates. CONCLUSION No difference of gait parameters could be identified between medial UKA performed with image-free robotic-assisted technique or with conventional technique. LEVEL OF EVIDENCE Prospective randomized controlled trial. LEVEL OF EVIDENCE I
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Affiliation(s)
- Cécile Batailler
- Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France. .,Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, F69622, Univ Lyon, Lyon, France.
| | | | - Alexandre Naaim
- Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, F69622, Univ Lyon, Lyon, France
| | - Elvire Servien
- Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,LIBM, EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, Lyon, France
| | - Laurence Cheze
- Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, F69622, Univ Lyon, Lyon, France
| | - Sébastien Lustig
- Orthopaedics Surgery and Sports Medicine Department, Croix-Rousse Hospital, Lyon University Hospital, Lyon, France.,Claude Bernard Lyon 1 University, IFSTTAR, LBMC UMR_T9406, F69622, Univ Lyon, Lyon, France
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10
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Vinet M, Le Stum M, Gicquel T, Clave A, Dubrana F. Unicompartmental knee arthroplasty: A French multicenteric retrospective descriptive study from 2009 to 2019 with projections to 2050. Orthop Traumatol Surg Res 2023; 109:103581. [PMID: 36796624 DOI: 10.1016/j.otsr.2023.103581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/17/2022] [Accepted: 11/30/2022] [Indexed: 02/16/2023]
Abstract
INTRODUCTION Unicompartmental knee arthroplasty (UKA) is a reliable and reproducible procedure. While some surgeons have incorporated it into their therapeutic armamentarium, others do not use it routinely, leading to a large disparity in practice. The objective of this study was to investigate in France the epidemiology of UKA from 2009 to 2019 to identify: (1) the evolution of growth trends by sex and age, (2) the evolution of the state of comorbidity of patients during the operation, (3) the evolution of trends according to the regions, (4) the projection best suited to the observations at 2050. HYPOTHESIS Our hypothesis was that in France, an increase would be observed over the period studied, differing according to the characteristics of the population. MATERIALS AND METHOD The study was conducted in France over the 2009-2019 period for each gender and age group. The data was taken from the NHDS (National Health Data System) database, which includes all the procedures carried out in France. Based on the collection of procedures performed, the incidence rates (per 100,000 inhabitants) and their evolution were deduced, as well as the indirect assessment of the patient's comorbidity status. Using linear, Poisson, and logistic projection models, incidence rates were projected to the years 2030, 2040, and 2050. RESULTS Between 2009 and 2019, the incidence rate of UKA increased sharply (from 12.76 to 19.57; +53%), the growth was different in men (from 10.78 to 20.34; +89%) and women (from 14.61 to 18.85; +29%). The male/female sex ratio increased from 0.69 in 2009 to 1.0 in 2019. The increase was greatest among men under 65 (from 4.9 to 9.9; +100%) and lowest among women over 75 (from 41.2 to 40.5; -2%). Over the period studied, the proportion of patients with mild comorbidities (HPG1) increased (from 71.7% to 81.1%) at the expense of the other classes with more severe comorbidities. This dynamic was observed for all age groups: 0-64 years (from 83.3% to 90%), 65-74 years (from 81.4% to 88.4%), 75 years and over (38 .2% to 52.6%) regardless of sex. There was a strong disparity between the regions with a change in the incidence rate ranging from -22% (from 29.8 to 23.1) for Corsica to +251% (from 13.9 to 48.7) for Brittany. The proposed projection models suggested an increase in the incidence rate of +18% in logistic regression, +103% in linear regression by 2050. DISCUSSION Our study showed strong growth in the number of UKAs in France over the period studied, being highest in young men. The proportion of patients with fewer comorbidities increased for all age groups. A disparity in inter-regional practice was identified, with indications that remain ambiguous and differ according to the practitioner. We can expect continued growth in the years to come, adding to the care burden. LEVEL OF EVIDENCE IV; Descriptive epidemiological study.
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Affiliation(s)
- Mathieu Vinet
- Service d'orthopédie, centre hospitalo-universitaire de Rennes, CHU de Rennes, 2, rue Henri-Le-Guilloux, 35000 Rennes, France.
| | - Mathieu Le Stum
- Institut national de la santé et de la recherche médicale, Inserm, laboratoire de traitement de l'information médicale (LATIM), UMR1101, 22, avenue Camille-Desmoulins, 29200 Brest, France
| | - Thomas Gicquel
- Clinique mutualiste de la porte de L'orient, 3, rue Robert-de-la-Croix, 56324 Lorient, France
| | - Arnaud Clave
- Université de Bretagne Occidentale, UBO, LATIM, UMR 1101, 22, avenue Camille-Desmoulins, 29200 Brest, France; Service d'orthopédie, clinique Saint-George, 2, avenue de Rimiez, 06100 Nice, France
| | - Frédéric Dubrana
- Service d'orthopédie, centre hospitalo-universitaire de Brest, CHRU de Brest, 2, avenue Foch, 29200 Brest, France
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Ji S, Huang Y, Zhou Y, Wang C, Wang X, Ma C, Jiang X. Pre-operative predictive factors of residual varus on the mechanical axis after Oxford unicompartmental knee arthroplasty. Front Surg 2023; 9:1054351. [PMID: 36700020 PMCID: PMC9869032 DOI: 10.3389/fsurg.2022.1054351] [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: 09/26/2022] [Accepted: 12/08/2022] [Indexed: 01/12/2023] Open
Abstract
Background Residual varus after Oxford unicompartmental knee arthroplasty (UKA) happens frequently. This study aims to evaluate the pre-operative contributing factors of residual varus. Methods A total of 1,002 knees (880 patients, 201 patients were male, and 679 were female) underwent Oxford UKA in the Orthopedic Surgery Department of the Beijing Jishuitan Hospital from March 2018 to April 2021. The mean age of the patient was 64.7 ± 7.7 years. To assess residual varus, the full-length lower extremity is placed upright for EOS imaging, with the knee fully extended. The angle of post-operative residual varus was measured as described by Noyes et al. Of the knees studied, they were either categorized into an under-corrected group (post-operative Noyes angle >5°) or a corrected group (post-operative Noyes angle ≤5°). Age, gender, body mass index (BMI), range of motion (ROM), Clinical American Knee Society Score (Clinical AKSS), and Function American Knee Society Score (Function AKSS) were compared. The following additional parameters were measured: pre-operative Noyes angle, lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA), the posterior slope of the proximal tibia angle (PPTA), joint line converge angle (JLCA), and fixed flexion deformity (FFD). Results There was no statistically significant difference between the two groups in regards to gender (p = 0.428), surgical leg (p = 0.937), age (p = 0.851), BMI (p = 0.064), pre-operative Clinical AKSS (p = 0.206) and Function AKSS (p = 0.100). However, pre-operative ROM statistically differed between the two groups (p < 0.001). The contributing factors of post-operative residual varus were determined to be the following parameters: pre-operative MPTA (p < 0.001, OR = 4.522, 95% CI: 2.927-6.984), pre-operative Noyes (p < 0.001, OR = 3.262, 95% CI: 1.802-5.907) and pre-operative FFD (p = 0.007, OR = 1.862, 95% CI: 1.182-2.934). The effects of pre-operative LDFA (p = 0.146), JLCA (p = 0.942), and pre-operative PPTA (p = 0.899) on the post-operative mechanical axis did not show statistical significance. Conclusions Patients with severe pre-operative varus, particularly varus deformity mainly from the tibial side or pre-operative FFD, are more prone to get extremity mechanical axis residual varus after UKA with Oxford.
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Affiliation(s)
- Songjie Ji
- Department of Orthopedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China,Correspondence: Songjie Ji Xu Jiang
| | - Ye Huang
- Department of Orthopedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Yixin Zhou
- Department of Orthopedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Chao Wang
- Department of Statistics, Beijing Research Institute of Traumatology and Orthopedics, Beijing, China
| | - Xiaokai Wang
- Department of Radiology, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Chaoyi Ma
- Department of Radiology, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Xu Jiang
- Department of Orthopedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China,Correspondence: Songjie Ji Xu Jiang
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Annapareddy A, Mulpur P, Prakash M, Suhas Masilamani AB, Eachempati KK, Gurava Reddy AV. Partial versus total knee arthroplasty for isolated antero-medial osteoarthritis - An analysis of PROMs and satisfaction. SICOT J 2023; 9:11. [PMID: 37094284 PMCID: PMC10125017 DOI: 10.1051/sicotj/2023006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 03/12/2023] [Indexed: 04/26/2023] Open
Abstract
AIM This study aimed to compare the patient-reported functional outcomes and patient satisfaction after medial Unicompartmental Knee Arthroplasty (UKA) versus Total Knee Arthroplasty (TKA), performed for anteromedial osteoarthritis (AMOA) of the knee in patients from an Indian population, at a minimum 3-year follow-up. METHODS This is a prospective matched cohort study (1:2 ratio). One hundred and one UKA cases were matched to 206 TKA cases by propensity score matching for age, body mass index (BMI), gender distribution, and the Charlson Comorbidity Index (CCI). The primary outcome (Oxford knee score, OKS) was assessed at a 3-year follow-up, along with secondary outcomes (Western Ontario and McMaster Universities Osteoarthritis Index [WOMAC] Score, Forgotten Joint Score (FJS), Anterior Knee Pain (Kujala) score, patient satisfaction, and revision rate at the final follow-up). RESULTS The UKA group was superior to the TKA group in patient-reported functional outcomes based on the OKS (p = 0.004). Using the FJS score, UKA was more likely to be a forgotten joint compared to TKA (p < 0.001). However, differences in the OKS and FJS did not meet the reported minimal clinically important difference (MCID) thresholds. Quality of life (EuroQol-5D VAS scale) was found to be significantly higher in the UKA group (p < 0.001). Patients in the UKA group were more likely to be very satisfied (75.2%) versus the TKA group (62.1%, p = 0.023). CONCLUSION For AMOA, UKA was associated with improved patient satisfaction compared to TKA. Although patient-reported outcome measures were statistically in favour of UKA over TKA, the differences were not clinically significant. Multicenter and randomized studies comparing the two procedures are warranted. EVIDENCE Level-II Therapeutic.
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Affiliation(s)
- Adarsh Annapareddy
- Consultant Orthopaedic and Joint Replacement Surgeon, Sunshine Bone and Joint Institute, KIMS-Sunshine Hospitals, 500003 Hyderabad, India
| | - Praharsha Mulpur
- Consultant Orthopaedic and Joint Replacement Surgeon, Sunshine Bone and Joint Institute, KIMS-Sunshine Hospitals, 500003 Hyderabad, India
| | - Mrinal Prakash
- Research Fellow, Joint Replacement Surgery, Sunshine Bone and Joint Institute, KIMS-Sunshine Hospitals, 500003 Hyderabad, India
| | - A B Suhas Masilamani
- Consultant Orthopaedic and Joint Replacement Surgeon, Sunshine Bone and Joint Institute, KIMS-Sunshine Hospitals, 500003 Hyderabad, India
| | - Krishna Kiran Eachempati
- Consultant Orthopaedic and Joint Replacement Surgeon, Department of Orthopaedics, Medicover Hospitals, 524002 Hyderabad, India
| | - A V Gurava Reddy
- Consultant Orthopaedic and Joint Replacement Surgeon, Sunshine Bone and Joint Institute, KIMS-Sunshine Hospitals, 500003 Hyderabad, India
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Sohn S, Koh IJ, Kim MS, Choi KY, Lim DS, In Y. Mobile-Bearing has no Benefit Over Fixed-Bearing Total Knee Arthroplasty in Joint Awareness and Crepitus: A Randomized Controlled Trial. J Arthroplasty 2023; 38:78-84. [PMID: 35934188 DOI: 10.1016/j.arth.2022.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Given higher component conformity, rotational availability of polyethylene insert, and more physiologic patellofemoral tracking, mobile-bearing (MB) total knee arthroplasty (TKA) is supposed to offer advantages in joint perception and crepitus. The purpose of this study was to investigate whether MB TKA offers superior outcomes over fixed-bearing (FB) TKA in terms of joint awareness and crepitus. METHODS This prospective, randomized, controlled trial included 49 FB and 49 MB TKAs that shared the same posterior-stabilized femoral component. Primary outcomes included joint awareness assessed with the Forgotten Joint Score and crepitus graded according to severity and sound at 3 years postoperatively. Secondary outcomes were the range of motion, the Knee Society Score, Western Ontario and McMaster Universities Osteoarthritis Index, component position, and joint line level on radiographs. RESULTS The Forgotten Joint Score showed no significant difference between the FB (67 points; range, 0-100) and MB groups (63 points; range, 13-100) (P = .440). For crepitus, no significant differences were found in the overall incidence rate (FB group, 18%; MB group, 12%; P = .386) and grade (grade 1, 6 versus 5; grade 2, 2 versus 1; grade 3, 1 versus 0, respectively). There were no significant differences in range of motion, Knee Society Score, and Western Ontario and McMaster Universities Osteoarthritis Index, as well as radiographic outcomes between the two groups (all, P > .05). CONCLUSION MB TKA offers no benefits in terms of joint awareness and crepitus compared with FB TKA at mean 3 years postoperatively. The theoretical advantages of MB TKA have yet to be demonstrated in practice, leaving the selection of bearing type to the surgeon's judgment. LEVEL OF EVIDENCE Level II.
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Affiliation(s)
- Sueen Sohn
- Department of Orthopaedic Surgery, Inje University Sanggye Paik Hospital, College of Medicine, Inje University, Seoul, Republic of Korea
| | - In Jun Koh
- Department of Orthopaedic Surgery, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Man Soo Kim
- Department of Orthopaedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Keun Young Choi
- Department of Orthopaedic Surgery, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Da Sol Lim
- Department of Orthopaedic Surgery, Inje University Sanggye Paik Hospital, College of Medicine, Inje University, Seoul, Republic of Korea
| | - Yong In
- Department of Orthopaedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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14
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The dynamic impact of Joint Awareness on Quality of Life after Total Knee Arthroplasty: a longitudinal study. J Orthop Surg Res 2022; 17:566. [PMID: 36572897 PMCID: PMC9791772 DOI: 10.1186/s13018-022-03456-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/16/2022] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Joint Awareness is thought to be closely linked to Quality of Life (QoL) for patients undergoing Total Knee Arthroplasty (TKA), yet to date there have been no longitudinal studies to explore how Joint Awareness actually affects QoL. The purpose of this study was therefore to examine the development of Joint Awareness and QoL after TKA as well as the dynamic impact of Joint Awareness on QoL. METHODS A total of 342 patients were followed up at 3 months (T1), 6 months (T2), and 12 months (T3) after TKA. Joint Awareness was evaluated using the Forgotten Joint Score-12 (FJS-12), and QoL was measured by SF-36. We used repeated measures analysis of variance to estimate the development of Joint Awareness and QoL and employed a cross-lagged model to examine the dynamic relationship between Joint Awareness and QoL. RESULTS Both Joint Awareness and QoL improved with postoperative time (p < 0.001). Importantly, T1 Joint Awareness positively predicted T2 physical QoL (p < 0.001), and T2 Joint Awareness positively predicted T3 physical QoL (p < 0.001). Nevertheless, Joint Awareness had no predictive effect on mental QoL (p = 0.082-0.931). CONCLUSIONS In different periods after TKA, Joint Awareness and QoL both increased monotonically, and Joint Awareness positively predicted physical QoL. These findings indicate that focusing on Joint Awareness may be a priority when trying to improve the postoperative life of patients.
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Matassi F, Innocenti M, Giabbani N, Sani G, Cozzi Lepri A, Piolanti N, Civinini R. Robotic-Assisted Unicompartmental Knee Arthroplasty Reduces Components' Positioning Differences among High- and Low-Volume Surgeons. J Knee Surg 2022; 35:1549-1555. [PMID: 33853154 DOI: 10.1055/s-0041-1727115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Robotic-assisted medial unicompartmental knee arthroplasty (mUKA) has been introduced to improve accuracy in implant positioning and limb alignment, overcoming the reported high failure rates of conventional UKA. Indeed, mUKA is a technically challenging procedure strongly related to surgeons' skills and expertise. The purpose of this study was to evaluate the likelihood of robotic-assisted surgery in reducing the variability of coronal and sagittal component positioning between high- and low-volume surgeons. We evaluated a prospective cohort of 161 robotic mUKA implanted between May 2018 and December 2019 at two high-volume robotic centers. Patients were divided into two groups: patients operated by "high-volume" (group A) or "low-volume" (group B) surgeons. We recorded intraoperative lower-limb alignment, component positioning, and surgical timing. Postoperatively, every patient underwent a radiographical protocol to assess coronal and sagittal femoral/tibial component alignment. Range of motion and other clinical outcomes were assessed pre- and 12 months postoperatively by using oxford knee score, forgotten joint score, and visual analog scale. Of 161 recruited knees, 149 (A: 101; B: 48) were available for radiographic analysis at 1 month, and clinical evaluation at 12 months. No clinical difference neither difference in mechanical alignment nor coronal/sagittal component positioning were found (p > 0.05). A significant difference was recorded in surgical timing (A: 57 minutes; B: 86 minutes; p < 0.05). No superficial or deep infections or other major complications have been developed during the follow-up. Robotics surgery in mUKA confirmed its value in improving the reproducibility of such technical procedure, with satisfactory clinical outcomes. Moreover, it almost eliminates any possible differences in component positioning, and lower limb alignment among low-and high- volume knee surgeons.
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Affiliation(s)
| | | | | | - Giacomo Sani
- Orthopaedic Clinic CTO, University of Florence, Florence, Italy
| | | | - Nicola Piolanti
- Orthopaedics and Traumatology Division, University of Pisa, Pisa, Italy
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Bandi M, Benazzo F, Batailler C, Blatter I, Siggelkow E, Parratte S. A Morphometric Fixed-Bearing Unicompartmental Knee Arthroplasty Can Reproduce Normal Knee Kinematics. An In Vitro Robotic Evaluation. Arthroplast Today 2022; 16:151-157. [PMID: 35769767 PMCID: PMC9234006 DOI: 10.1016/j.artd.2022.02.023] [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: 12/05/2021] [Accepted: 02/15/2022] [Indexed: 11/26/2022] Open
Abstract
Background Methods Results Conclusion
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17
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Femorotibial alignment measured during robotic assisted knee surgery is reliable: radiologic and gait analysis. Arch Orthop Trauma Surg 2022; 142:1645-1651. [PMID: 34216259 DOI: 10.1007/s00402-021-04033-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 06/29/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Femorotibial alignment is crucial for the outcome of unicompartmental knee arthroplasty (UKA). Robotic-assisted systems are useful to increase the accuracy of alignment in UKA. However, no study has assessed if the femorotibial alignment measured by the image-free robotic system is reliable. The aim of this study was to determine whether measurement of the mechanical femorotibial axis (mFTA) in the coronal plane with handheld robotic assistance during surgery is equivalent to a static measurement on radiographs and to a dynamic measurement during walking. METHODS Twenty patients scheduled for robotic-assisted medial UKA using handheld technology were included in this prospective study. Three measurements of the frontal femorotibial axis were compared: intra-operative acquisition by computer assistance (dynamic, non-weightbearing position), radiographic measurements on long leg X-ray (static, weightbearing position), and by gait analysis during walking (dynamic, weightbearing position). RESULTS There was no significant difference in the mFTA between computer (174.4 ± 3.4°), radiological (173.9 ± 3.3°), and gait analysis (172.9 ± 5.1°) measurements (p = 0.5). There was a strong positive correlation (r = 0.6577355, p = 0.0016) between robotic-assisted measurements and gait analysis. CONCLUSION There was no significant difference in the femorotibial axis measured by the image-free robotic assistance, from the preoperative radiographs or by gait analysis. The reliability of intra-operative measurements of the frontal femorotibial axis by these robotic-assisted systems is acceptable.
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Sershon RA, Fricka KB, Hamilton WG, Nam D, Parks NL, DeBenedetti A, Della Valle CJ. Early Results of a Randomized Controlled Trial of Partial Versus Total Knee Arthroplasty. J Arthroplasty 2022; 37:S94-S97. [PMID: 35227810 DOI: 10.1016/j.arth.2022.02.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 02/11/2022] [Accepted: 02/18/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Debate still exists regarding the benefits of unicompartmental (UKA) versus total knee arthroplasty (TKA) for the treatment of medial compartment osteoarthritis. The purpose of this randomized trial is to compare the early outcomes of UKA versus TKA. METHODS One-hundred and seven candidates for UKA were randomized at two centers; 57 candidates received UKA and 50 received TKA. Six-week and 6-month outcome measures including Knee Injury and Osteoarthritis Outcome Score, Joint Replacement (KOOS, JR), Knee Society Score (KSS), Forgotten Joint Score (FJS), and VR-12 global health scores were obtained. No demographic or baseline patient reported outcome (PRO) differences were present suggesting successful randomization (P > .05). RESULTS UKA demonstrated shorter operative times (UKA = 65 minutes, TKA = 74 minutes; P < .001) and length of stay (UKA = 0.7 nights, TKA = 1.2 nights; P < .01). At 6 weeks, there were no differences in KOOS, JR (P = .755), KSS (P = .754), FJS (P = .664), or PRO change from preoperative scores (P = .468). There were three surgical complications within 90 days in each group. The duration of opioid consumption (UKA = 33.8 days, TKA = 28.5 days; P = .290) and return to work (UKA = 57.1 days, TKA = 47.3 days; P = .346) did not differ between groups. CONCLUSION Data suggest no clinically significant differences between UKA and TKA in the early postoperative period in regards to patient-reported outcome measures, duration of opioid use, or return to work. Patients undergoing UKA can anticipate a shorter length of stay and greater early range of motion. All-cause short-term complications may be more prevalent with TKA.
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Affiliation(s)
| | - Kevin B Fricka
- Anderson Orthopaedic Research Institute, Alexandria, Virginia
| | | | - Dennis Nam
- Anderson Orthopaedic Research Institute, Alexandria, Virginia
| | - Nancy L Parks
- Anderson Orthopaedic Research Institute, Alexandria, Virginia
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Comparison of joint awareness after medial unicompartmental knee arthroplasty and high tibial osteotomy: a retrospective multicenter study. Arch Orthop Trauma Surg 2022; 142:1133-1140. [PMID: 34269892 DOI: 10.1007/s00402-021-03994-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/10/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Unicompartmental knee arthroplasty (UKA) and high tibial osteotomy (HTO) are established treatments for medial compartment osteoarthritis (OA) or osteonecrosis (ON) of the knee joint, and the predominance of either procedure is inconclusive. We compared the awareness of the knee after UKA and HTO using the Forgotten joint score-12 (FJS). MATERIALS AND METHODS This was a retrospective, multicenter study. Ninety-six knees of 90 patients who received UKA or HTO and were followed-up for at least 1 year were analyzed. Postoperative FJS was compared between the two groups and evaluated for the effect of patient-related factors and clinical outcomes. Multiple linear regression analysis was performed to predict FJS. RESULTS There was no significant difference in the FJS between the UKA and HTO groups (p = 0.24). FJS did not correlate with any of the patient-related factors. There was a correlation between the FJS and each item of the Knee Injury and Osteoarthritis Outcome Scores (KOOS) and Lysholm Knee Scoring Scale (LKS). In multiple linear regression analysis, lower BMI, the diagnosis of OA Kellgren-Lawrence (KL) grade ≥ 3, and ON were significant predictors of better FJS. In both groups, FJS was correlated with each item of the KOOS and LKS. Internal consistency in terms of Cronbach's alpha was excellent. CONCLUSIONS There was no significant difference in FJS between patients who underwent UKA and HTO. Lower BMI, the diagnosis of OA KL grade ≥ 3, and ON were significant predictors of better FJS.
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Longo UG, De Salvatore S, Di Naro C, Sciotti G, Cirimele G, Piergentili I, De Marinis MG, Denaro V. Unicompartmental knee arthroplasty: the Italian version of the Forgotten Joint Score-12 is valid and reliable to assess prosthesis awareness. Knee Surg Sports Traumatol Arthrosc 2022; 30:1250-1256. [PMID: 33837807 DOI: 10.1007/s00167-021-06559-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/30/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Unicompartmental Knee Arthroplasty (UKA) recorded an increased incidence of around 30% per year in the United States. Patient's experience and satisfaction after surgery were traditionally assessed by pre, and post-surgical scores and Patient-Reported Outcome Measures (PROMs) scales. Traditional scales as Western Ontario and McMaster University Osteoarthritis Index (WOMAC) and Oxford Knee Score (OKS) reported high ceiling effect. Patients treated by UKA usually perform well; therefore, it is necessary to have a PROMs' scale with a low ceiling effect as the Forgotten Joint Score-12 (FJS-12). PROMs have to be validated in the local language to be used. This study aims to perform a psychometric validation of the Italian version of FJS-12 for UKA for the first time. METHODS Between January 2019 and October 2019, 44 patients were included. Each patient completed both the FJS-12 Italian version and the WOMAC Italian version in preoperative follow-up, after 2-week and 1-month, 3-month, and 6-month postoperative follow-up. Cronbach's α, intraclass correlation coefficient (ICC), standard error of measurement (SEM), and minimal detectable change (MDC) were calculated to evaluate the reliability. The Pearson coefficient was used to assess validity. The Effect Size (ES) was used to test the responsiveness. RESULTS A range of Cronbach's α between 0.90 and 0.95 indicated good internal consistency for the FJS-12. The test-retest reliability was acceptable (i.e., the ICC was higher than 0.7) at each follow-up. The Pearson correlation coefficient between the FJS-12 and WOMAC was - 0.11 (n.s.) at preoperative follow-up, r = 0.47 (P = 0.001) at 1 month, r = 0.57 (P < 0.001) at 3 months, and r = 0.57 (P < 0.001) at 6 months. Therefore, except for the preoperative period, the validity of the FJS-12 score was assessed. CONCLUSION The FJS-12 represents a valid and reliable tool with a low ceiling effect to assess the outcomes improvement in UKA patients. Therefore, validating and translating this score in different languages could help perform more accurate studies on outcomes after UKA. LEVEL OF EVIDENCE Level III, diagnostic study.
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Affiliation(s)
- Umile Giuseppe Longo
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy.
| | - Sergio De Salvatore
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
| | - Calogero Di Naro
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
| | - Gaia Sciotti
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
| | - Giada Cirimele
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
| | - Ilaria Piergentili
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
| | | | - Vincenzo Denaro
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128, Rome, Italy
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Porteous AJ, Smith JRA, Bray R, Robinson JR, White P, Murray JRD. St Georg Sled medial unicompartmental arthroplasty: survivorship analysis and function at 20 years follow up. Knee Surg Sports Traumatol Arthrosc 2022; 30:800-808. [PMID: 33502571 DOI: 10.1007/s00167-021-06454-6] [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: 09/02/2020] [Accepted: 01/11/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE The peri-operative and short-term benefits of unicompartmental knee arthroplasty (UKA) are well supported in the literature. However, there remains concern regarding the higher revision rate when compared with total knee replacement. This manuscript reports the functional outcome and survivorship of a large series of fixed bearing, medial unicompartmental replacements (St Georg Sled), with a minimum of 20 years follow-up. METHODS Between 1974 and 1994, 399 patients (496 knees) underwent a medial fixed-bearing UKA. Prospective data were collected pre-operatively and at regular intervals post-operatively using the Bristol Knee Score (BKS), Oxford Knee (OKS) and Western Ontario MacMaster (WOMAC) scores. Kaplan-Meier survival analysis was used to determine survivorship, with revision or need for revision as end point, and differences assessed using Mantel-Cox log rank test. RESULTS Functional knee scores improved post-operatively, but demonstrated a slight decline from 10 years of follow-up onwards. Survivorship is estimated as 86% at 10 years, 80% at 15 years, and 78% at 20 years. Sixty knees were revised, with progression of disease in another compartment the commonest reason. Eighty eight percent were revised using a primary prosthesis. For patients over the age of 65 years at the time of index procedure, 93% died with a functioning prosthesis in situ. CONCLUSION Medial UKA demonstrates good long-term function and survivorship, and represents an excellent surgical option for patients aged over 65 years of age, where few patients will require a revision procedure. LEVEL OF EVIDENCE IV.
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Affiliation(s)
| | - James R A Smith
- Avon Orthopaedic Centre, Southmead Hospital, Bristol, BS10 5NB, UK.
| | - Rachel Bray
- Avon Orthopaedic Centre, Southmead Hospital, Bristol, BS10 5NB, UK
| | - James R Robinson
- Avon Orthopaedic Centre, Southmead Hospital, Bristol, BS10 5NB, UK
| | - Paul White
- University of the West of England, Bristol, BS16 1QL, UK
| | - James R D Murray
- Avon Orthopaedic Centre, Southmead Hospital, Bristol, BS10 5NB, UK
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22
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Lee J, Lim SH, Ro DH, Lee MC, Han HS. Translation and Validation of the Korean Version of the Forgotten Joint Score. Clin Orthop Surg 2021; 13:482-490. [PMID: 34868497 PMCID: PMC8609209 DOI: 10.4055/cios20213] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 12/16/2020] [Accepted: 12/16/2020] [Indexed: 11/10/2022] Open
Abstract
Backgroud The Forgotten Joint Score (FJS) is a newly developed patient-reported outcome measure designed to evaluate clinical outcome after total knee arthroplasty (TKA). The FJS is known as a sensitive test with a low ceiling effect. It has been recently translated into many languages. However, no study has reported the validity or reliability of a Korean version of the FJS (K-FJS). Thus, the purpose of this study was to address this issue. Methods According to guidelines for cross-cultural adaptation, translation of the English version of the FJS was performed. After obtaining a license from the original developer, 150 patients who had undergone TKA at more than 1 year to less than 5 years ago completed the K-FJS, visual analog scale, Western Ontario and McMaster Universities Osteoarthritis index (WOMAC), and the 36-Item Short Form (SF-36) health survey. To measure test-retest reliability, the K-FJS was completed twice by telephone survey for 100 patients. Responsiveness was retrospectively calculated based on a survey of 50 patients at 3 months and 1 year after surgery. Results The K-FJS exhibited an excellent reliability (Cronbach's α, 0.967; intraclass correlation coefficient, 0.958; 95% confidence interval, 0.930–0.974). The ceiling effect of the K-FJS was 8.7% (n = 13), which was lower than the WOMAC's ceiling effect (10%). There was no floor effect. The correlation coefficients with WOMAC and SF-36 (physical function) were 0.708 and 0.682, respectively, indicating good construct validity. However, its correlation with mental health subscale of SF-36 was low (r = 0.143). At 3 to 12 months after TKA, the standardized response mean (SRM) was 0.67, which was lower than the SRM of WOMAC (1.03) obtained in the same period. The K-FJS demonstrated strong measurement properties in terms of good construct validity and reliability. Conclusions This study suggests that the K-FJS is an excellent instrument that can be used to monitor clinical outcomes after TKA. Using this standardized K-FJS, it would be possible for medical institutions to share more accurate clinical results.
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Affiliation(s)
- Jangyun Lee
- Department of Orthopedic Surgery, National Medical Center, Seoul, Korea
| | - Sang-Hyun Lim
- Department of Orthopedic Surgery, National Medical Center, Seoul, Korea
| | - Du Hyun Ro
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Myung Chul Lee
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
| | - Hyuk-Soo Han
- Department of Orthopedic Surgery, Seoul National University Hospital, Seoul, Korea
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Wu LP, Mayr HO, Zhang X, Huang YQ, Chen YZ, Li YM. Knee Scores of Patients with Non-Lateral Compartmental Knee Osteoarthritis Undergoing Mobile, Fixed-Bearing Unicompartmental Knee and Total Knee Arthroplasties: A Randomized Controlled Trial. Orthop Surg 2021; 14:73-87. [PMID: 34870364 PMCID: PMC8755879 DOI: 10.1111/os.13111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/21/2021] [Accepted: 05/26/2021] [Indexed: 11/29/2022] Open
Abstract
Objective To evaluate knee scores and clinical efficacies of patients with non‐lateral unicompartmental knee osteoarthritis (OA) who randomly underwent mobile‐bearing (MB) unicompartmental knee arthroplasty (UKA), fixed‐bearing (FB) UKA, and total knee arthroplasty (TKA). Methods From September 2015 to February 2017, a prospective, randomized, parallel, single‐center trial of 180 patients (78 males and 102 females; 63.3 ± 6.9 years) with non‐lateral compartmental knee OA was performed in the first author‐affiliated hospital. The patients were randomly divided into three groups (each group included 60 patients) and received medial cemented Oxford phase 3 MB UKA, medial cemented Link FB UKA, or cemented DePuy Sigma PFC TKA, respectively. A similar perioperative management and fast‐track surgery program was carried out for all patients. The knee scores at 3‐year follow‐up after operation and clinical efficacies of these three groups of patients were recorded, investigated, and compared. Results Primarily, compared to the TKA group, the UKA groups (MB UKA and FB UKA) had shorter operative time (median 63.2 < 67.1 min), less bleeding (8.6 < 30.0 mL), earlier resumption of walking without crutches (3.0 < 8.0 days) and walking up and down the stairs (5.0 < 10.0 days) (P < 0.001), higher FJS scores (78.0 > 74.5) (P = 0.007), better results in all knee scores (except VAS and KSS function scores) (P < 0.05), and a larger maximum flexion angle of the knee at the 3‐year follow‐up (123.0° > 96.0°) (P = 0.001). Secondarily, compared to the TKA group, the MB UKA group showed better results in the Western Ontario and McMaster Universities index (WOMAC) stiffness (83.6 > 79.6), WOMAC total (86.3 > 83.2), Oxford knee score (OKS) (20.0 < 23.0), Forgotten Joint Score (FJS) (78.5 > 74.5), and a larger maximum flexion angle of the knee (123.0 > 96.0) (P < 0.05). Moreover, the FB UKA group showed higher Hospital for Special Surgery Knee Score (HSS) (91.0 > 88.5), WOMAC stiffness (84.3 > 79.6), WOMAC function (85.2 > 81.7), WOMAC total scores (87.6 > 83.2), and a larger maximum flexion angle of the knee (119.0° > 96.0°) than the TKA group (P < 0.05). Overall, there was no significant difference in all knee scores and maximum flexion angles of the knee for the MB UKA and FB UKA groups (P > 0.05). There was one case with original bearing dislocation in MB UKA group. One patient with displacement of the femoral component caused by a fall injury, and another patient, who lost his life in a car accident, were involved in the FB UKA group. There was an infection case and an intermuscular vein thrombosis case in TKA group. Conclusion UKA showed more advantages than TKA; however, there was no significant difference between the MB UKA and FB UKA groups for treatment of non‐lateral compartmental knee OA.
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Affiliation(s)
- Li-Ping Wu
- Department of Orthopedic Surgery, Jiangmen Central Hospital (Affiliated Jiangmen Hospital of Sun Yat-Sen University), Jiangmen, China
| | - Hermann O Mayr
- Department of Orthopedics and Trauma Surgery, Medical Center, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Xing Zhang
- Clinical Experimental Center, Jiangmen Central Hospital (Affiliated Jiangmen Hospital of Sun Yat-Sen University), Jiangmen, China
| | - Yuan-Qiao Huang
- Department of Orthopedic Surgery, Jiangmen Central Hospital (Affiliated Jiangmen Hospital of Sun Yat-Sen University), Jiangmen, China
| | - Yuan-Zhuang Chen
- Department of Orthopedic Surgery, Jiangmen Central Hospital (Affiliated Jiangmen Hospital of Sun Yat-Sen University), Jiangmen, China
| | - Yu-Ming Li
- Department of Orthopedic Surgery, Jiangmen Central Hospital (Affiliated Jiangmen Hospital of Sun Yat-Sen University), Jiangmen, China
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Joint awareness after unicompartmental and total knee arthroplasty: Which feels more natural? JOURNAL OF ORTHOPAEDICS, TRAUMA AND REHABILITATION 2021. [DOI: 10.1177/22104917211056944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background/Purpose The purpose of this study was to compare the joint awareness and knee function after unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA) for the management of isolated medial compartment osteoarthritis. Methods Patients who underwent UKA or TKA at our institution for isolated medial compartment osteoarthritis from 2015 to 2020 with a minimum follow-up of 1 year were screened. 116 eligible patients were invited and 94 volunteer patients participated. All patients were evaluated with The Forgotten Joint Score-12 and Lysholm Knee Scale. Results Average follow-up period was 29.13±15.48 months for UKA and 31.66±2.91 months for TKA groups ( p=0.292). FJS-12 of the UKA group was significantly higher than that of the TKA group (79.74±15.06 and 63.25±19.86, respectively; p=0.024). The Lysholm Knee Scale score was also significantly higher in the UKA group compared with the TKA group (92.94±8.74 and 78.34±14.99, respectively; p = 0.002). Conclusion Our findings suggest that patients who underwent UKA were less aware of their artificial joints and had better knee function compared to patients who underwent TKA for medial osteoarthritis of the knee.
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Zambianchi F, Daffara V, Negri A, Franceschi G, Schiavon G, Catani F. Preoperative Osteoarthritic Grade Affects Forgotten Joint Status and Patient Acceptable Symptom State After Robotic Arm-Assisted Unicompartmental Knee Arthroplasty. J Arthroplasty 2021; 36:3650-3655. [PMID: 34294481 DOI: 10.1016/j.arth.2021.06.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/16/2021] [Accepted: 06/23/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND This retrospective observational study was designed to investigate the association between radiographic Ahlbäck osteoarthritis (OA) grade and postoperative joint perception in a cohort of patients undergoing medial robotic arm-assisted unicompartmental knee arthroplasty (RA-UKA), using the Forgotten Joint Status and Patient Acceptable Symptom State (PASS) as outcomes. METHODS Between January 2014 and May 2019, 660 patients (719 knees) underwent medial RA-UKA at 2 centers. Ahlbäck OA grade was measured on preoperative knee radiographs. Postoperatively, patients were administered the Forgotten Joint Score-12 (FJS-12) and 5-level Likert scale to assess patients' satisfaction. Correlations were described among FJS-12, satisfaction, and Ahlbäck OA grade by means of logistic regression models. RESULTS A total of 547 patients (602 knees) were assessed at a mean follow-up of 3.5 years (standard deviation 1.4). A total of 293 cases were graded as Ahlbäck 1 (Group A) and 309 knees were graded as Ahlbäck>1 (Group B). Statistically significant difference was detected in mean FJS-12 (P < .001), but not in the postoperative satisfaction level (P = .06) between the 2 groups. Patients in Group B had a significantly higher probability of attaining a "forgotten knee" after the operation, compared to Group A (P < .05). Cases in Group A had a significantly lower probability of achieving the PASS (P < .01). CONCLUSION Patients with higher grades of OA (Ahlbäck>1) were more likely to attain a "forgotten knee," while patients with less severe OA (Ahlbäck 1) were less likely to achieve the PASS after RA-UKA. Although patients with less severe OA reported fairly good outcome, cases in which the results will be poorer are currently difficult to predict.
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Affiliation(s)
- Francesco Zambianchi
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio Emilia, Modena, Italy
| | - Valerio Daffara
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio Emilia, Modena, Italy
| | - Alberto Negri
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio Emilia, Modena, Italy
| | - Giorgio Franceschi
- Department of Knee Surgery, Policlinico di Abano Terme, Abano Terme (PD), Italy
| | - Guglielmo Schiavon
- Department of Orthopaedics and Traumatology, EOC Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Fabio Catani
- Department of Orthopaedic Surgery, Azienda Ospedaliero Universitaria di Modena, University of Modena and Reggio Emilia, Modena, Italy
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Tripathy SK, Varghese P, Srinivasan A, Goyal T, Purudappa PP, Sen RK, Chandrappa MH. Joint awareness after unicompartmental knee arthroplasty and total knee arthroplasty: a systematic review and meta-analysis of cohort studies. Knee Surg Sports Traumatol Arthrosc 2021; 29:3478-3487. [PMID: 33078218 DOI: 10.1007/s00167-020-06327-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 10/06/2020] [Indexed: 02/05/2023]
Abstract
PURPOSE The purpose of this systematic review and meta-analysis is to evaluate the joint awareness after unicompartmental knee arthroplasty (UKA) and total knee arthroplasty (TKA). It was hypothesized that patients with UKA could better forget about their artificial joint in comparison to TKA. METHODS A search of major literature databases and bibliographic details revealed 105 studies evaluating forgotten joint score in UKA and TKA. Seven studies found eligible for this review were assessed for risk of bias and quality of evidence using the Newcastle-Ottawa Scale. The forgotten joint score (FJS-12) was assessed at 6 months, 1 year, and 2 years. RESULTS The mean FJS-12 at 2 years was 82.35 in the UKA group and 74.05 in the TKA group. Forest plot analysis of five studies (n = 930 patients) revealed a mean difference of 7.65 (95% CI: 3.72, 11.57, p = 0.0001; I2 = 89% with p < 0.0001) in FJS-12 at 2 years. Further sensitivity analysis lowered I2 heterogeneity to 31% after exclusion of the study by Blevin et al. (MD 5.88, 95%CI: 3.10, 8.66, p < 0.0001). A similar trend of differences in FJS-12 between the groups was observed at 6 months (MD 32.49, 95% CI: 17.55, 47.43, p < 0.0001) and at 1 year (MD 25.62, 95% CI: 4.26, 46.98, p = 0.02). CONCLUSIONS UKA patients can better forget about their artificial joint compared to TKA patients. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Sujit Kumar Tripathy
- Department of Orthopedics, All India Institute of Medical Sciences, Bhubaneswar, 751019, India.
| | - Paulson Varghese
- Department of Orthopedics, All India Institute of Medical Sciences, Bhubaneswar, 751019, India
| | - Anand Srinivasan
- Department of Pharmacology, All India Institute of Medical Sciences, Bhubaneswar, India
| | - Tarun Goyal
- Department of Orthopedics, All India Institute of Medical Sciences, Bathinda, India
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Tveit M. The Renaissance of Unicompartmental Knee Arthroplasty appears rational - A radiograph-based comparative Study on adverse Events and patient-reported Outcomes in 353 TKAs and 98 UKAs. PLoS One 2021; 16:e0257233. [PMID: 34529691 PMCID: PMC8445477 DOI: 10.1371/journal.pone.0257233] [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: 02/10/2021] [Accepted: 08/26/2021] [Indexed: 11/18/2022] Open
Abstract
PURPOSE Total knee arthroplasty (TKA) and unicompartmental knee arthroplasty (UKA) are both considered suitable for antero-medial osteoarthritis and spontaneous osteonecrosis of the knee. National registry data are consistent in showing higher revision rates for UKA. Adequately adjusted, these findings may be challenged by differences in adverse events and patient-reported outcomes, as both can have serious long-term implications. Based on preoperative radiographs, the aim was to retrospectively compare the two principle surgeries in these respects. METHODS All TKA procedures in 2016 in one Swedish county council were, according to certain radiograph-based consensus criteria, visually evaluated for medial UKA suitability. Then, using different regression models, they were compared with the corresponding medial UKAs performed in 2015-2017 regarding complications and patient-reported outcomes one year after surgery. RESULTS The UKA group showed an 82% reduced risk (OR 0.2; 95% CI 0.0-0.6) of any complications, whereas the 55% reduced risk of severe complication did not reach statistical significance (OR 0.5; 95% CI 0.1-2.1). These findings corresponded in high-volume surgeries to an absolute complication rate of 0% in the UKA group and 10% in the TKA group (p = 0.005) and to a severe complication rate of 0% and 5% respectively (p = 0.05). Though no differences were seen in any general patient-reported outcomes, the pain and function based OMERACT-OARSI responder criteria indicated in both around a 60% better chance of any response (OR 1.6 CI % 0.6-4.5) and a high response (OR 1.6; 95% CI 0.7-3.4) in the UKA group. CONCLUSION No differences were shown in patient-reported outcomes but a clear difference in risk of complications, favoring the UKA procedure.
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Affiliation(s)
- Magnus Tveit
- Department of Orthopedics, Skåne University Hospital, Clinical Sciences, Lund University, Lund, Sweden
- * E-mail:
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28
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Beard DJ, Davies LJ, Cook JA, MacLennan G, Price A, Kent S, Hudson J, Carr A, Leal J, Campbell H, Fitzpatrick R, Arden N, Murray D, Campbell MK. Total versus partial knee replacement in patients with medial compartment knee osteoarthritis: the TOPKAT RCT. Health Technol Assess 2021; 24:1-98. [PMID: 32369436 DOI: 10.3310/hta24200] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Late-stage medial compartment knee osteoarthritis can be treated using total knee replacement or partial (unicompartmental) knee replacement. There is high variation in treatment choice and insufficient evidence to guide selection. OBJECTIVE To assess the clinical effectiveness and cost-effectiveness of partial knee replacement compared with total knee replacement in patients with medial compartment knee osteoarthritis. The findings are intended to guide surgical decision-making for patients, surgeons and health-care providers. DESIGN This was a randomised, multicentre, pragmatic comparative effectiveness trial that included an expertise component. The target sample size was 500 patients. A web-based randomisation system was used to allocate treatments. SETTING Twenty-seven NHS hospitals (68 surgeons). PARTICIPANTS Patients with medial compartment knee osteoarthritis. INTERVENTIONS The trial compared the overall management strategy of partial knee replacement treatment with total knee replacement treatment. No specified brand or subtype of implant was investigated. MAIN OUTCOME MEASURES The Oxford Knee Score at 5 years was the primary end point. Secondary outcomes included activity scores, global health measures, transition items, patient satisfaction (Lund Score) and complications (including reoperation, revision and composite 'failure' - defined by minimal Oxford Knee Score improvement and/or reoperation). Cost-effectiveness was also assessed. RESULTS A total of 528 patients were randomised (partial knee replacement, n = 264; total knee replacement, n = 264). The follow-up primary outcome response rate at 5 years was 88% and both operations had good outcomes. There was no significant difference between groups in mean Oxford Knee Score at 5 years (difference 1.04, 95% confidence interval -0.42 to 2.50). An area under the curve analysis of the Oxford Knee Score at 5 years showed benefit in favour of partial knee replacement over total knee replacement, but the difference was within the minimal clinically important difference [mean 36.6 (standard deviation 8.3) (n = 233), mean 35.1 (standard deviation 9.1) (n = 231), respectively]. Secondary outcome measures showed consistent patterns of benefit in the direction of partial knee replacement compared with total knee replacement although most differences were small and non-significant. Patient-reported improvement (transition) and reflection (would you have the operation again?) showed statistically significant superiority for partial knee replacement only, but both of these variables could be influenced by the lack of blinding. The frequency of reoperation (including revision) by treatment received was similar for both groups: 22 out of 245 for partial knee replacement and 28 out of 269 for total knee replacement patients. Revision rates at 5 years were 10 out of 245 for partial knee replacement and 8 out of 269 for total knee replacement. There were 28 'failures' of partial knee replacement and 38 'failures' of total knee replacement (as defined by composite outcome). Beyond 1 year, partial knee replacement was cost-effective compared with total knee replacement, being associated with greater health benefits (measured using quality-adjusted life-years) and lower health-care costs, reflecting lower costs of the index surgery and subsequent health-care use. LIMITATIONS It was not possible to blind patients in this study and there was some non-compliance with the allocated treatment interventions. Surgeons providing partial knee replacement were relatively experienced with the procedure. CONCLUSIONS Both total knee replacement and partial knee replacement are effective, offer similar clinical outcomes and have similar reoperation and complication rates. Some patient-reported measures of treatment approval were significantly higher for partial knee replacement than for total knee replacement. Partial knee replacement was more cost-effective (more effective and cost saving) than total knee replacement at 5 years. FUTURE WORK Further (10-year) follow-up is in progress to assess the longer-term stability of these findings. TRIAL REGISTRATION Current Controlled Trials ISRCTN03013488 and ClinicalTrials.gov NCT01352247. FUNDING This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 20. See the NIHR Journals Library website for further project information.
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Affiliation(s)
- David J Beard
- Nuffield Department of Orthopaedics, University of Oxford, Oxford, UK
| | - Loretta J Davies
- Nuffield Department of Orthopaedics, University of Oxford, Oxford, UK
| | - Jonathan A Cook
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Graeme MacLennan
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Andrew Price
- Nuffield Department of Orthopaedics, University of Oxford, Oxford, UK
| | - Seamus Kent
- Department of Public Health, University of Oxford, Oxford, UK
| | - Jemma Hudson
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - Andrew Carr
- Nuffield Department of Orthopaedics, University of Oxford, Oxford, UK
| | - Jose Leal
- Department of Public Health, University of Oxford, Oxford, UK
| | - Helen Campbell
- Department of Public Health, University of Oxford, Oxford, UK
| | - Ray Fitzpatrick
- Department of Public Health, University of Oxford, Oxford, UK
| | - Nigel Arden
- Nuffield Department of Orthopaedics, University of Oxford, Oxford, UK
| | - David Murray
- Nuffield Department of Orthopaedics, University of Oxford, Oxford, UK
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Gan Y, Zhuang J, Jiang W, Sun W, Zhang Y. Application of Personalized Navigation Templates to Oxford Single Condylar Replacement in a Chinese Population. J Knee Surg 2021; 34:1155-1161. [PMID: 32143216 DOI: 10.1055/s-0040-1702188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The purpose of this study is to develop and validate a novel patient-specific navigational template for unicompartmental knee arthroplasty (UKA). A total of 120 patients who underwent UKA were randomized and divided into the conventional method and navigational template groups. In the navigational template group, patient-specific navigational templates were designed and used intraoperatively to assist 60 patients with UKA. Information on operation time and blood loss was recorded by an independent operating room nurse. After surgery, the positions of the prostheses were evaluated using X-rays. All navigation templates were found to fit its corresponding biomodel appropriately without any free movement. The navigational template exhibited significantly better accuracy than the conventional method. Statistically significant differences in the femoral prosthesis flip angle, femoral prosthesis flexion angle, and tibial plateau varus and valgus angle were observed between the two groups (p = 0.022, 0.042, 0.043, respectively). In addition, the mean operation time was statistically and significantly lower in the navigational template group than in the conventional group (p = 0.035). This study introduces a novel navigational template to UKA, the accuracy of which is proven by clinical operation. This is a Level III, therapeutic study.
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Affiliation(s)
- Yudong Gan
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
| | - Jian Zhuang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
| | - Wenxiao Jiang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
| | - Wei Sun
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
| | - Yijun Zhang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, China
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Gaudiani MA, Samuel LT, Kamath AF, Courtney PM, Lee GC. Robotic-Assisted versus Manual Unicompartmental Knee Arthroplasty: Contemporary Systematic Review and Meta-analysis of Early Functional Outcomes. J Knee Surg 2021; 34:1048-1056. [PMID: 32000264 DOI: 10.1055/s-0040-1701455] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Robotic-assisted unicompartmental knee arthroplasty (RA-UKA) aims to improve accuracy of component placement. Studies have shown improvement in radiographic positioning/alignment with RA-UKA but have not addressed clinical outcome measures (COMs). The purpose of this study was to determine if RA-UKA is associated with improved early revision rates and functional outcome scores (FOS) compared with manual UKA. A systematic review of all English language articles from 1999 to 2019 on RA-UKA using Medline, EMBASE, Scopus, and Web of Science databases identified 277 studies. Seven (three randomized controlled trials) met inclusion criteria. Revision rates/FOS were aggregated for RA-UKA and manual UKA; a forest plot was constructed utilizing inverse variance/Mantel-Haenszel fixed-effects meta-analysis. The seven articles included a total of 363 RA-UKA patients and 425 manual UKA patients. Mean age was 66 ± 3.5 and 65 ± 4.0 years, and mean body mass index (BMI) was 26.8 ± 2.1 and 27.1 ± 1.5 kg/m2, respectively. Mean follow-up was 25.5 months (4.5-48) and 29.1 months (4.5-48) for RA-UKA and manual UKA, respectively. At latest follow-up, RA-UKA patients showed a 26% ± 12 improvement in COMs versus 24% ± 12 improvement for manual UKA patients (p = 0.6). The revision rate was 3% for both groups (p = 0.8); however, a meta-analysis of RCTs showed no difference. Robotic and manual UKAs offer comparable improvements in pain, FOS, and revision rates. The effects of follow-up duration, ceiling effects of COMs, and surgeon experience remain unknown. Future studies comparing robotic versus manual UKAs with longer term follow-up may inform further benefits of each, with respect to component durability, alignment, and functional improvement.
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Affiliation(s)
- Michael A Gaudiani
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Linsen T Samuel
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Atul F Kamath
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, Ohio
| | - P Maxwell Courtney
- Department of Orthopaedic Surgery, Rothman Institute, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - Gwo-Chin Lee
- Department of Orthopaedic Surgery, Penn Medicine University City, Philadelphia, Pennsylvania
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Pumilia CA, Schroeder L, Sarpong NO, Martin G. Patient Satisfaction, Functional Outcomes, and Implant Survivorship in Patients Undergoing Customized Unicompartmental Knee Arthroplasty. J Pers Med 2021; 11:753. [PMID: 34442397 PMCID: PMC8401135 DOI: 10.3390/jpm11080753] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/21/2021] [Accepted: 07/29/2021] [Indexed: 12/16/2022] Open
Abstract
Customized unicompartmental knee arthroplasty (C-UKA) utilizes implants manufactured on an individual patient basis, derived from pre-operative computed tomography images in an effort to more closely approximate the natural anatomy of the knee. The outcomes from 349 medial and lateral fixed-bearing C-UKA were reviewed. Implant survivorship analysis was conducted via retrospective chart review, and follow-up analysis was conducted via a single postoperative phone call or email. The rate of follow-up was 69% (242 knees). The average age at surgery was 71.1 years and the average body mass index was 28.8 kg/m2. Seven revision arthroplasties (2.1%) had knowingly been performed at an average of 1.9 years postoperatively (range: 0.1-3.9 years), resulting in an implant survivorship of 97.9% at an average follow-up of 4.2 years (range: 0.1-8.7) and 97.9% at an average of 4.8 years (range: 2.0-8.7) when knees with less than two years of follow-up were excluded. The reasons for revision were implant loosening (one knee), infection (two knees), progression of osteoarthritis (two knees), and unknown reasons (two knees). The average KOOS, JR. interval score was 84 (SD: 14.4). Of those able to be contacted for follow-up analysis, 67% were "very satisfied," 26% were "satisfied," 4% were "neutral," 2% were "dissatisfied," and 1% were "very dissatisfied." When asked if the knee felt "natural," 60% responded with "always," 35% responded with "sometimes," and 5% responded with "never." After analyzing a large cohort of C-UKA, we found favorable rates of survivorship, satisfaction, and patient-reported functional outcomes.
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Affiliation(s)
| | - Lennart Schroeder
- Department of General, Trauma and Reconstructive Surgery, University Hospital, Ludwig Maximilians University, 81377 Munich, Germany;
| | - Nana O. Sarpong
- Columbia University Medical Center, Department of Orthopedic Surgery, New York—Presbyterian Hospital, Columbia University, New York, NY 10032, USA;
| | - Gregory Martin
- Department of Orthopedic Surgery, Personalized Orthopaedics of the Palm Beaches, Boynton Beach, FL 33437, USA;
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Jensen CB, Petersen PB, Jørgensen CC, Kehlet H, Troelsen A, Gromov K. Length of Stay and 90-Day Readmission/Complication Rates in Unicompartmental Versus Total Knee Arthroplasty: A Propensity-Score-Matched Study of 10,494 Procedures Performed in a Fast-Track Setup. J Bone Joint Surg Am 2021; 103:1063-1071. [PMID: 33784260 DOI: 10.2106/jbjs.20.01287] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Whether to use unicompartmental knee arthroplasty (UKA) or total knee arthroplasty (TKA) for appropriate osteoarthritis cases is a subject of debate. UKA potentially offers faster recovery and fewer short-term complications. However, reported differences in preoperative comorbidity between TKA and UKA-treated patients could affect outcomes. The aim of this study was to investigate differences in the length of the postoperative hospital stay (LOS) as well as readmissions and complications within 90 days after surgery between matched UKA and TKA cohorts. METHODS Patients undergoing UKA or TKA in a fast-track setup at 9 orthopaedic centers from 2010 to 2017 were included in the study. Propensity score matching with exact matching for surgical year was used to address differences in demographics and comorbidity between the UKA and TKA groups, resulting in a matched cohort of 2,786 patients who underwent UKA and 7,708 who underwent TKA. Univariable linear or logistic regression models, multivariable mixed-effects models, and a chi-square test were used to investigate differences in LOS, readmissions, and complications between the UKA and TKA groups. RESULTS The UKA group had a shorter median LOS than the TKA group (1 compared with 2 days, p < 0.001). The UKA group was more likely to be discharged on the day of surgery (21.1% compared with 0.5%, odds ratio [OR] = 38.5, 95% confidence interval [CI] = 27.0 to 52.6) and less likely to have an LOS of >2 days (OR = 0.20, 95% CI = 0.17 to 0.24) compared with the TKA group. There was no difference in the 90-day readmission rate (p = 0.611) between the groups. The UKA group had fewer periprosthetic joint infections (OR = 0.50, 95% CI = 0.26 to 0.99) and reoperations (OR = 0.40, 95% CI = 0.20 to 0.81) compared with the TKA group. However, aseptic revisions were more frequent in the UKA group (OR = 2.5, 95% CI = 1.1 to 6.0). CONCLUSIONS The UKA group had shorter hospital stays, a higher rate of discharge on the day of surgery, and fewer periprosthetic joint infections and reoperations compared with the matched TKA group. However, the TKA group had fewer aseptic revisions. Our findings support the use of UKA in a fast-track setup when indicated. LEVEL OF EVIDENCE Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- Christian Bredgaard Jensen
- Department of Orthopaedic Surgery, Clinical Orthopaedic Research Hvidovre (CORH), Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Pelle Baggesgaard Petersen
- Section for Surgical Pathophysiology, Rigshospitalet, Copenhagen, Denmark.,Lundbeck Foundation Centre for Fast-track Hip and Knee Arthroplasty, Rigshospitalet, Copenhagen, Denmark
| | - Christoffer Calov Jørgensen
- Section for Surgical Pathophysiology, Rigshospitalet, Copenhagen, Denmark.,Lundbeck Foundation Centre for Fast-track Hip and Knee Arthroplasty, Rigshospitalet, Copenhagen, Denmark
| | - Henrik Kehlet
- Section for Surgical Pathophysiology, Rigshospitalet, Copenhagen, Denmark.,Lundbeck Foundation Centre for Fast-track Hip and Knee Arthroplasty, Rigshospitalet, Copenhagen, Denmark
| | - Anders Troelsen
- Department of Orthopaedic Surgery, Clinical Orthopaedic Research Hvidovre (CORH), Copenhagen University Hospital Hvidovre, Hvidovre, Denmark
| | - Kirill Gromov
- Department of Orthopaedic Surgery, Clinical Orthopaedic Research Hvidovre (CORH), Copenhagen University Hospital Hvidovre, Hvidovre, Denmark.,Lundbeck Foundation Centre for Fast-track Hip and Knee Arthroplasty, Rigshospitalet, Copenhagen, Denmark
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Baryeh K, Maillot C, Gummaraju A, Rivière C. Disappointing Relationship between Functional Performance and Patient Satisfaction of UKA Patients: A Cross Sectional Study. Orthop Traumatol Surg Res 2021; 107:102865. [PMID: 33636415 DOI: 10.1016/j.otsr.2021.102865] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 07/08/2020] [Accepted: 07/20/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND Following a Unicompartmental knee arthroplasty (UKA) satisfaction is often conflated with functional outcome. Recent studies have shown that satisfaction is not linked to functional outcome. The research questions were: (1) what is the relationship between satisfaction and functional performance and quality of life (absolute and gain values) after UKA? And (2) what is the level of satisfaction, function, and quality of life after UKA? HYPOTHESIS There is a poor relationship between functional performance and patient satisfaction following UKA. METHODS This was a retrospective study using a locally held arthroplasty register to identify patients who had undergone UKA between 2004 and 2017. Patient reported outcome measures (PROMs) were collected prospectively and included EQ-5D, Oxford Knee Score (OKS) and satisfaction score (based on a visual analogue score with 0 being worst and 100 being best). Patients with a complete set of pre-operative and 2-year post-operative outcome scores were included. Patients who subsequently underwent revision surgery were excluded. 1638 patients were identified, of which 896 were eligible for inclusion. The average age was 66.7 years old, with 46.3% of patients being female. RESULTS There was a moderate to strong correlation between the absolute or relative values for OKS and the patient satisfaction following UKA (r=0.705 and r=0.522, respectively). The average pre-operative scores improved from a median of 23 (IQR 18-28) to 43 (IQR 35-46) (p<0.001) and from a median of 0.62 (IQR 0.186-0.691) to 0.85 (IQR 0.691 - 1) (p<0.001) for OKS and EQ-5D, respectively. In terms of satisfaction with outcome, 82.6% of patients were very satisfied and 4.4% were dissatisfied (scoring ≥80% and <50%, respectively). At 2 years, the PASS was met or surpassed by 73.1% and 54.9% (OKS and EQ-5D, respectively). The MCID was met or surpassed by 93% and 78% (OKS and EQ-5D, respectively). DISCUSSION/CONCLUSION UKA is a successful procedure generating high levels of patient function and satisfaction. Because patients' OKS and EQ-5D scores may be influenced by comorbidities, those scores are of disappointing predictive value in estimating patient satisfaction, and therefore should not be used as a surrogate to determine the success of the UKA procedure. LEVEL OF EVIDENCE III; Restrospective cohort study.
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Affiliation(s)
- Kwaku Baryeh
- South West London Elective Orthopaedic Centre, Dorking Road, Epsom, KT18 7EG, UK.
| | - Cedric Maillot
- Service de Chirurgie Orthopedique et Traumatologique Bichat-Beaujon, Assistance Publique Hospitaux de Paris universite Sorbonne Paris Cite, France
| | - Advaith Gummaraju
- South West London Elective Orthopaedic Centre, Dorking Road, Epsom, KT18 7EG, UK
| | - Charles Rivière
- South West London Elective Orthopaedic Centre, Dorking Road, Epsom, KT18 7EG, UK; The MSK Lab, Imperial College London, Charing Cross Hospital, Charing Cross Campus, W6 8RF London, UK; Centre de l'Arthrose - Clinique de Sport, 4, rue Georges Negrevergne, 33700 Mérignac, France
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Katakam A, Bragdon CR, Chen AF, Melnic CM, Bedair HS. Elevated Body Mass Index Is a Risk Factor for Failure to Achieve the Knee Disability and Osteoarthritis Outcome Score-Physical Function Short Form Minimal Clinically Important Difference Following Total Knee Arthroplasty. J Arthroplasty 2021; 36:1626-1632. [PMID: 33419617 DOI: 10.1016/j.arth.2020.12.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/22/2020] [Accepted: 12/11/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND The aims of this study are (1) to assess the association between body mass index (BMI) and failure to achieve the 1-year Knee Disability and Osteoarthritis Outcome Score-Physical Function Short Form (KOOS-PS) minimal clinically important difference (MCID) for total knee arthroplasty (TKA) patients and (2) to determine if there is a BMI threshold beyond which the risk of failing to achieve the MCID is significantly increased. METHODS A regional arthroplasty registry was queried for TKA patients from 2016 to 2019 with completion of preoperative and 1-year postoperative KOOS-PS. The MCID threshold was derived using a distribution-based approach. Demographic and patient-reported outcome measure variables were collected. BMI was analyzed continuously and categorically using cutoffs defined by the Centers for Disease Control and Prevention. The association between failure to achieve 1-year MCID and BMI was analyzed using multiple logistic regression. A BMI threshold was determined using the Youden index and receiver operating characteristic curve. RESULTS In total, 1059 TKAs were analyzed. BMI assessed continuously was significantly associated with failure to achieve the KOOS-PS MCID (odds ratio 1.03, 95% confidence interval 1.00-1.05, P = .025). Analysis of BMI categorically revealed that "overweight" (25-30 kg/m2), "obese class I" (30-35 kg/m2), "obese class II" (35-40 kg/m2), and "obese class III" (>40 kg/m2) patients faced 77%, 76%, 83%, and 106% greater risk, respectively, of failing to achieve the KOOS-PS MCID compared to "normal BMI" (<25 kg/m2) patients. CONCLUSION Elevated BMI was associated with an increased risk of failure to achieve the 1-year KOOS-PS MCID following TKA.
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Affiliation(s)
- Akhil Katakam
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA; Department of Orthopaedic Surgery, Newton-Wellesley Hospital, Newton, MA
| | - Charles R Bragdon
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Antonia F Chen
- Department of Orthopaedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Christopher M Melnic
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA; Department of Orthopaedic Surgery, Newton-Wellesley Hospital, Newton, MA
| | - Hany S Bedair
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA; Department of Orthopaedic Surgery, Newton-Wellesley Hospital, Newton, MA
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Longo UG, De Salvatore S, Candela V, Berton A, Casciaro C, Sciotti G, Cirimele G, Marchetti A, Piergentili I, De Marinis MG, Denaro V. Unicompartmental Knee Arthroplasty: Minimal Important Difference and Patient Acceptable Symptom State for the Forgotten Joint Score. ACTA ACUST UNITED AC 2021; 57:medicina57040324. [PMID: 33915704 PMCID: PMC8065647 DOI: 10.3390/medicina57040324] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 12/23/2022]
Abstract
Background and Objectives: Unicompartmental knee arthroplasty (UKA) is a valid alternative to total knee arthroplasties (TKAs) in selected cases. After surgery, patients' experience and satisfaction were traditionally evaluated by pre- and postsurgical scores and Patient-Reported Outcome Measures (PROMs). Otherwise, a statistically significant change does not necessarily correlate to a clinically meaningful improvement when measured using PROMs. To evaluate the real effect of a specific treatment and understand the difference between groups in a clinical trial, it is necessary to use a meaningful quantum of change on the score assessed. The minimal clinically important difference (MCID) and the Patient Acceptable Symptom State (PASS) can provide this meaningful change. This paper aimed to calculate the MCID and the PASS of the Forgotten Joint Score (FJS-12) after UKA. Materials and Methods: A total of 40 patients with a mean age 72.5 ± 6.4 years undergoing UKA were assessed preoperatively and six months postsurgery using the FJS-12 and the Oxford Knee Score (OKS). The baseline and 6-month postoperative scores were compared using the Wilcoxon signed ranks test. The correlation was calculated with Spearman's rho. Both distribution-based approaches and anchor approaches were used to estimate MCID for the FJS-12. The 75th percentile and the Receiver operating characteristic (ROC) curve methods were used to calculate the PASS of FJS-12. Results: MCID estimates for normalized FJS-12 for UKA ranged from 5.68 to 19.82. The threshold of the FJS-12 with ROC method was 72.92 (AUC = 0.76). The cut-off value computed with the 75th percentile approach was 92.71. Conclusions: The MCID and PASS represent valid tools to assess the real perception of clinical improvement in patients who underwent UKA. The MCID value of FJS-12 was 12.5 for patients who underwent UKA. The value of the PASS for the FJS-12 in patients who underwent UKA was 72.92.
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Affiliation(s)
- Umile Giuseppe Longo
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128 Rome, Italy; (S.D.S.); (V.C.); (A.B.); (C.C.); (I.P.); (V.D.)
- Correspondence: ; Tel.: +39-06-225411613
| | - Sergio De Salvatore
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128 Rome, Italy; (S.D.S.); (V.C.); (A.B.); (C.C.); (I.P.); (V.D.)
| | - Vincenzo Candela
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128 Rome, Italy; (S.D.S.); (V.C.); (A.B.); (C.C.); (I.P.); (V.D.)
| | - Alessandra Berton
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128 Rome, Italy; (S.D.S.); (V.C.); (A.B.); (C.C.); (I.P.); (V.D.)
| | - Carlo Casciaro
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128 Rome, Italy; (S.D.S.); (V.C.); (A.B.); (C.C.); (I.P.); (V.D.)
| | - Gaia Sciotti
- Research Unit Nursing Science, Campus Bio-Medico di Roma University, 00128 Rome, Italy; (G.S.); (G.C.); (A.M.); (M.G.D.M.)
| | - Giada Cirimele
- Research Unit Nursing Science, Campus Bio-Medico di Roma University, 00128 Rome, Italy; (G.S.); (G.C.); (A.M.); (M.G.D.M.)
| | - Anna Marchetti
- Research Unit Nursing Science, Campus Bio-Medico di Roma University, 00128 Rome, Italy; (G.S.); (G.C.); (A.M.); (M.G.D.M.)
| | - Ilaria Piergentili
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128 Rome, Italy; (S.D.S.); (V.C.); (A.B.); (C.C.); (I.P.); (V.D.)
| | - Maria Grazia De Marinis
- Research Unit Nursing Science, Campus Bio-Medico di Roma University, 00128 Rome, Italy; (G.S.); (G.C.); (A.M.); (M.G.D.M.)
| | - Vincenzo Denaro
- Department of Orthopaedic and Trauma Surgery, Campus Bio-Medico University, Via Alvaro del Portillo, 200, Trigoria, 00128 Rome, Italy; (S.D.S.); (V.C.); (A.B.); (C.C.); (I.P.); (V.D.)
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及 松, 黄 野, 王 兴, 柳 剑, 窦 勇, 姜 旭, 周 一. [Multivariate analysis of varus after Oxford unicompartmental knee arthroplasty]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2021; 53:293-297. [PMID: 33879900 PMCID: PMC8072441 DOI: 10.19723/j.issn.1671-167x.2021.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To analyze the preoperative influencing factors of varus after Oxford unicompartmental knee arthroplasty. METHODS A total of 660 patients (767 knees) undergoing Oxford unicompartmental knee arthroplasty in adult joint reconstruction surgery department of Beijing Jishuitan Hospital from January 2018 to December 2019 were retrospectively analyzed. Inclusive criteria: diagnosis was osteoarthritis, single compartment lesions in the medial side of the knee; preoperative flexion deformity was less than 10°, active range of motion was greater than 90°; preoperative X-ray full-length images of both lower limbs showed less than 15° varus (Noyes method); anterior cruciate ligament was well functioned, The cartilage of lateral compartment of knee joint was intact. EXCLUSION CRITERIA combined with other inflammatory arthropathy; combined with extraarticular deformity; previous knee surgery history. The average age of the patients was (64.4±8.1) years, including 153 males and 497 females. The degree of post-operative varus was measured with Noyes method. The total patients were divided into varus group (Noyes≥3 °) and normal group (Noyes < 3 °). Gender, age, body mass index (BMI), range of motion (ROM), preoperative flexion deformity (FD), American Knee Society pain score (AKS) and American Knee Society function score (AKS function) were recorded. The standard anteroposterior and lateral X-ray films of knee joint and full-length lower extremity kinematic line films were taken by Sonialvision Safine Ⅱ (Shimadzu, Japan) multi-function digital tomography system. The image was measured by picture archiving and communication system (PACS). The following angles were measured preoperative Noyes angle, lateral distal femoral angle (LDFA), medial proximal tibial angle (MPTA) and joint line converge angle (JLCA) were measured and analyzed. RESULTS Gender(P=0.346), operative side (P=0.619), age (P=0.746), BMI (P=0.142), preoperative ROM (P=0.102), preoperative knee pain score (P=0.131) and functional score (P=0.098) were not risk factors for postoperative varus. The influencing factors of postoperative varus were preoperative MPTA < 84 ° (P= 0.018, OR= 3.712, 95%CI: 1.250-11.027), preoperative Noyes > 5°(P=0.000, OR= 3.105, 95%CI: 1.835-5.254), preoperative FD > 5° (P= 0.001, OR=1.976, 95%CI: 1.326-3.234). Pre-operative LDFA (P=0.146) and preoperative JLCA (P= 0.709) had no significant effect on postoperative kinematic line. CONCLUSION Patients with severe preoperative varus, especially those with varus deformity mainly from the tibial side, and those with preoperative flexion deformity are more prone to get varus lower extremity kinematic line after Oxford unicompartmental knee arthroplasty.
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Affiliation(s)
- 松洁 及
- />北京积水潭医院矫形骨科,北京 100035Department of Adult Joint Reconstruction Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - 野 黄
- />北京积水潭医院矫形骨科,北京 100035Department of Adult Joint Reconstruction Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - 兴山 王
- />北京积水潭医院矫形骨科,北京 100035Department of Adult Joint Reconstruction Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - 剑 柳
- />北京积水潭医院矫形骨科,北京 100035Department of Adult Joint Reconstruction Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - 勇 窦
- />北京积水潭医院矫形骨科,北京 100035Department of Adult Joint Reconstruction Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - 旭 姜
- />北京积水潭医院矫形骨科,北京 100035Department of Adult Joint Reconstruction Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
| | - 一新 周
- />北京积水潭医院矫形骨科,北京 100035Department of Adult Joint Reconstruction Surgery, Beijing Jishuitan Hospital, Beijing 100035, China
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Kono K, Inui H, Tomita T, Yamazaki T, Taketomi S, Yamagami R, Kawaguchi K, Sugamoto K, Tanaka S. Weight-bearing status affects in vivo kinematics following mobile-bearing unicompartmental knee arthroplasty. Knee Surg Sports Traumatol Arthrosc 2021; 29:718-724. [PMID: 32055876 DOI: 10.1007/s00167-020-05893-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 01/29/2020] [Indexed: 11/29/2022]
Abstract
PURPOSE The effects of weight bearing (WB) on knee kinematics following mobile-bearing unicompartmental knee arthroplasty (UKA) remain unknown. The purpose of this study was to clarify the effects of WB on in vivo kinematics of mobile-bearing UKA during high knee flexion activities. METHODS The kinematics of UKA were evaluated under fluoroscopy during squatting (WB) and active-assisted knee flexion (non-weight bearing, NWB). Range of motion, femoral axis rotation relative to the tibia, anteroposterior (AP) translation of the medial and lateral sides, and kinematic pathway were measured. RESULTS There were no differences in knee flexion range and external rotation of the femur in each flexion angle between the WB conditions. The amount of femoral external rotation between minimum flexion and 60° of flexion during WB was significantly larger than that during NWB, and that between 60° and 130° of flexion during NWB was significantly larger than that during WB. There were no differences in medial AP translation of the femur in each flexion angle between the WB conditions. However, on the lateral side, posterior translation of 52.9 ± 12.7% was observed between minimum flexion and 130° of flexion during WB. During NWB, there was no significant translation between minimum flexion and 60° of flexion; beyond 60° of flexion, posterior translation was 41.6 ± 8.7%. Between 20° and 80° of flexion, the lateral side in WB was located more posteriorly than in NWB (p < 0.05). CONCLUSION Mobile-bearing UKA has good anterior stability throughout the range of knee flexion. WB status affects the in vivo kinematics following mobile-bearing UKA. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Kenichi Kono
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Department of Orthopaedic Biomaterial Science, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Hiroshi Inui
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Tetsuya Tomita
- Department of Orthopaedic Biomaterial Science, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Takaharu Yamazaki
- Department of Information Systems, Faculty of Engineering, Saitama Institute of Technology, 1690 Fusaiji, Fukaya, Saitama, 369-0293, Japan
| | - Shuji Taketomi
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ryota Yamagami
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kohei Kawaguchi
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kazuomi Sugamoto
- Department of Orthopaedic Biomaterial Science, Osaka University Graduate School of Medicine, 2-2 Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Sakae Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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Gill JR, Corbett JA, Wastnedge E, Nicolai P. Forgotten Joint Score: Comparison between total and unicondylar knee arthroplasty. Knee 2021; 29:26-32. [PMID: 33530010 DOI: 10.1016/j.knee.2021.01.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 01/01/2021] [Accepted: 01/09/2021] [Indexed: 02/02/2023]
Abstract
BACKGROUND The aim of this study is to assess the Forgotten Joint Score (FJS) for total knee arthroplasty (TKA) and unicondylar knee arthroplasty (UKA) with both short- and long-term follow-up. METHODS For a consecutive period of eight months, the FJS was sent to all patients who had undergone either a primary TKA or UKA either one, five or ten years previously at our institution. Patient demographics and operative details were recorded retrospectively. FJS were collected for three different TKA prosthesis and two different UKA prosthesis. RESULTS A total of 588 FJS questionnaires were completed consisting of 482 TKA and 106 UKA procedures. The mean FJS for patients with TKA and UKA were 50.2 and 65.4 respectively (p < 0.001). Mean FJS for the ZUK were statistically superior to the Oxford UKA, 73.1 versus 60.1 (p = 0.020). For TKA mean FJS were statistically better at five compared to one year follow up, 53.8 versus 44.8 (p = 0.007). For UKA the mean FJJs were greatest at 10 year follow up (69.0), but the difference between scores at one (60.4) and five (68.4) years was not statistically significant (p = 0.243). CONCLUSION This cross-sectional study has shown; superior FJSs for UKA compared to TKA and superior FJSs for a fixed bearing compared to a mobile bearing UKA and therefore supports the use of UKA opposed to TKA where the indications for UKA are satisfied. For TKA the FJS in the five-year post-operative group were significantly superior to those in the one-year post-operative group.
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Affiliation(s)
- James R Gill
- Department of Trauma and Orthopaedics, West Suffolk NHS Foundation Trust, Hardwick Lane, Bury St Edmunds, Suffolk IP33 2QZ, United Kingdom.
| | - James A Corbett
- Department of Trauma and Orthopaedics, West Suffolk NHS Foundation Trust, Hardwick Lane, Bury St Edmunds, Suffolk IP33 2QZ, United Kingdom
| | | | - Paul Nicolai
- Department of Trauma and Orthopaedics, West Suffolk NHS Foundation Trust, Hardwick Lane, Bury St Edmunds, Suffolk IP33 2QZ, United Kingdom
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Murray JRD, Smith JRA, Bray R, Robinson JR, White P, Porteous AJ. Fixed bearing, all-polyethylene tibia, lateral unicompartmental arthroplasty - A final outcome study with up to 28 year follow-up of a single implant. Knee 2021; 29:101-109. [PMID: 33610116 DOI: 10.1016/j.knee.2020.12.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 12/15/2020] [Accepted: 12/26/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND Lateral unicompartmental arthroplasty (UKA) constitutes only 5-10% of all unicompartmental replacements performed. Whilst the short and medium term benefits are well documented, there remains concern regarding the higher revision rate when compared with total knee replacement. We report the long term clinical outcome and survivorship of a large series of lateral UKA. PATIENTS AND METHODS Between 1974 and 1994, 71 patients (82 knees) underwent a lateral fixed-bearing St Georg Sled UKA. Prospective data was collected pre-operatively and at regular intervals post-operatively using the Bristol Knee Score (BKS), with later introduction of the Oxford Knee (OKS) and Western Ontario MacMaster (WOMAC) scores. Kaplan Meier survival analysis was used, with revision, or need for revision, as end point. 85% of the patients were female. No patients were lost to follow-up. RESULTS Functional knee scores improved post-operatively up to 10 years, at which point they demonstrated a steady decline. Survivorship was 72% at 15 years, and 68% at 20 and 25 years. Nineteen knees were revised, with progression of disease in another compartment the commonest reason. There were two revisions due to implant fracture. In patients aged over 70 years at time of index procedure, 81% died with a functioning prosthesis in situ. CONCLUSION This represents the longest follow-up of a large series of lateral UKA. Results of this early design of fixed bearing UKA demonstrate satisfactory long term survivorship. In elderly patients, further intervention is rarely required. More contemporary designs or techniques may show improved long term survivorship in time.
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Affiliation(s)
- James R D Murray
- Avon Orthopaedic Centre, Southmead Hospital, Bristol BS10 5NB, United Kingdom.
| | - James R A Smith
- Avon Orthopaedic Centre, Southmead Hospital, Bristol BS10 5NB, United Kingdom.
| | - Rachel Bray
- Avon Orthopaedic Centre, Southmead Hospital, Bristol BS10 5NB, United Kingdom.
| | - James R Robinson
- Avon Orthopaedic Centre, Southmead Hospital, Bristol BS10 5NB, United Kingdom.
| | - Paul White
- University of the West of England, Bristol BS16 1QL, United Kingdom.
| | - Andrew J Porteous
- Avon Orthopaedic Centre, Southmead Hospital, Bristol BS10 5NB, United Kingdom.
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Kwan H, To K, Bojanic C, Romain K, Khan W. A meta-analysis of clinical and radiological outcomes in simultaneous bilateral unicompartmental knee arthroplasty. J Orthop 2021; 23:128-137. [PMID: 33510553 PMCID: PMC7815461 DOI: 10.1016/j.jor.2020.12.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/23/2020] [Indexed: 10/22/2022] Open
Abstract
BACKGROUND The most common pattern seen in bilateral knee osteoarthritis involves only the medial compartment in both knees. In such cases, bilateral Unicompartmental Knee Arthroplasty (UKA) would be a suitable surgery, this can be done simultaneously in one surgery or in stages with a period of time between each UKA. Simultaneous bilateral UKA in appropriately selected patients have the potential advantages of a lower cost, a shorter hospital stay, and a shorter overall recovery process. Despite this, there are concerns that operating on both knees in one surgery may increase the risk of complications, revisions and mortality. METHODS A PRISMA systematic review and meta-analysis was conducted using three databases (MEDLINE, EMBASE, and Scopus) to identify all studies which investigated either clinical or radiological outcomes in simultaneous bilateral UKA. RESULTS All sixteen studies included found that simultaneous bilateral UKA improved clinical and radiological outcomes. Eight studies compared clinical or radiological outcomes between simultaneous and staged bilateral UKA. Simultaneous bilateral UKA was found to have a significantly shorter length of operation, length of hospital stay, and a lower treatment cost (P < 0.001). Our meta-analysis found no statistically significant difference in the all-cause complication rate between simultaneous and staged bilateral UKA (P = 0.36). Only one study compared radiological outcomes between simultaneous and staged bilateral UKA which found no significant difference. CONCLUSION Our review suggests that simultaneous bilateral UKA is comparable to staged bilateral UKA in terms of clinical and radiological outcomes and has the potential to be increasingly adopted in clinical practice due to its superior cost-effectiveness.
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Affiliation(s)
- Haowen Kwan
- School of Clinical Medicine, University of Cambridge, Hills Road, Cambridge, CB2 0QQ, UK
| | - Kendrick To
- Division of Trauma and Orthopaedics, Department of Surgery, University of Cambridge, Addenbrooke's Hospital, Cambridge, CB2 0QQ, UK
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK
| | - Christine Bojanic
- Division of Plastic and Reconstructive Surgery, Department of Surgery, University of Cambridge, Addenbrooke's Hospital, Cambridge, CB2 0QQ, UK
| | - Karl Romain
- School of Clinical Medicine, University of Cambridge, Hills Road, Cambridge, CB2 0QQ, UK
| | - Wasim Khan
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK
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Yamagami R, Inui H, Jo T, Kawata M, Taketomi S, Kono K, Kawaguchi K, Sameshima S, Kage T, Matsui H, Fushimi K, Yasunaga H, Tanaka S. Unicompartmental knee arthroplasty is associated with lower proportions of surgical site infection compared with total knee arthroplasty: A retrospective nationwide database study. Knee 2021; 28:124-130. [PMID: 33359944 DOI: 10.1016/j.knee.2020.11.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 09/18/2020] [Accepted: 11/23/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND This study aimed to clarify the association between types of knee arthroplasty (KA) (total knee arthroplasty (TKA) or unicompatmental knee arthroplasty (UKA)) and surgical site infection (SSI) with adjustment for various factors, using a Japanese national database. METHODS Data on 181,608 patients who underwent unilateral primary KA for osteoarthritis from 2010 to 2017 were obtained from the Japanese Diagnosis Procedure Combination database. SSI was identified based on International Classification of Diseases 10th Revision codes. Deep SSI (i.e. periprosthetic joint infection (PJI)) was identified as SSI treated with surgical procedures. Multivariable logistic regression analyses for SSI and PJI were performed, in which dependent variables included types of KA, patient backgrounds (sex, age, body mass index (BMI), smoking status, comorbidities), and seasonality. RESULTS Eight percent of analyzed patients underwent UKA, while 92% underwent TKA. The proportions of SSI and PJI after UKA were 0.9% and 0.3%, respectively, both of which were lower than those after TKA (1.9% and 0.6%) (P < 0.001). Multivariable analyses showed lower proportions of SSI for UKA (adjusted odds ratio, 0.47; 95% confidence interval, 0.37-0.60; P < 0.001) and PJI (adjusted odds ratio, 0.47; 95% confidence interval, 0.34-0.65; P < 0.001) than TKA. Other factors associated with both SSI and PJI included male sex, BMI >30 kg/m2, renal dysfunction and summer season. CONCLUSION UKA was associated with lower proportions of SSI and PJI than TKA. Surgeons should carefully consider the indication of UKA before performing TKA, especially in patients with knee unicompartmental osteoarthritis who are at a high risk for SSI or PJI.
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Affiliation(s)
- Ryota Yamagami
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Inui
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan.
| | - Taisuke Jo
- Department of Health Services Research, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Manabu Kawata
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shuji Taketomi
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kenichi Kono
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kohei Kawaguchi
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Shin Sameshima
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tomofumi Kage
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Kiyohide Fushimi
- Department of Health Informatics and Policy, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Sakae Tanaka
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo, Japan
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Robotics improves alignment accuracy and reduces early revision rates for UKA in the hands of low-volume UKA surgeons. Arch Orthop Trauma Surg 2021; 141:2139-2146. [PMID: 34406509 PMCID: PMC8595180 DOI: 10.1007/s00402-021-04114-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 08/05/2021] [Indexed: 11/21/2022]
Abstract
PURPOSE It is known that in uni-compartmental knee arthroplasty (UKA) low-volume surgeons have a higher complication and revision rate than high-volume surgeons. Further, robotic-assisted UKA leads to lower early revision rate as well as fewer limb and joint line outliers compared to conventional UKA. The purpose of this study was to retrospectively analyze the outliers' and revision rate of low-volume UKA surgeons with different robotic systems at short-term follow-up. METHODS In this case-control study, 103 robotic-assisted UKAs were included. The procedures were performed between 2016 and 2019 from two low-volume UKA surgeons with an imageless (IL) (63 patients) and image-based (IB) (40 patients) robotic system. Alignment outliers, joint line (JL) reconstruction, complication and revision rates of the two different robotic systems were analyzed. The minimum follow-up was two years. Outliers were defined as a postoperative valgus malalignment greater than 182°. The surgery time for all procedures was evaluated. RESULTS The overall revision rate was 3.9% (4 of 103). Two occurred in the IB group (5.0%) and two in the IL group (3.2%). No valgus malalignment outliers were observed in both groups. The mean JL was not distalized by more than 2 mm in both groups (IL: 1.3 ± 1.6 mm vs. IB: 1.8 ± 0.9 mm, p value 0.08). The IL procedures had a significant lower mean surgery time (55 ± 13 min vs. 68 ± 14, p value 0.001). CONCLUSION Robotic-assisted UKA is a safe procedure in the hand of low-volume UKA surgeons. Robotic-assisted UKA minimizes overcorrection into valgus mal-alignment. Low revision rates are observed at short-term follow-up for robotic-assisted UKA. The choice of the different robotic systems has no impact on the outcome.
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Kwon HM, Lee JA, Koh YG, Park KK, Kang KT. Effects of contact stress on patellarfemoral joint and quadriceps force in fixed and mobile-bearing medial unicompartmental knee arthroplasty. J Orthop Surg Res 2020; 15:517. [PMID: 33168023 PMCID: PMC7653850 DOI: 10.1186/s13018-020-02047-0] [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: 02/13/2020] [Accepted: 10/28/2020] [Indexed: 11/10/2022] Open
Abstract
Background Unicompartmental knee arthroplasty (UKA) is an effective treatment for end-stage, symptomatic unicompartmental osteoarthritis of the knee joint. However, patellofemoral joint degeneration is a contraindication to medial UKA. Therefore, the objective of this study was to evaluate the biomechanical effect of medial UKA using fixed-bearing (FB) and mobile-bearing (MB) design prostheses on the patellofemoral joint. Methods A three-dimensional finite-element model of a normal knee joint was developed using medical image data. We performed statistical analysis for each model. The differences in contact stress on the patellofemoral joint and the quadriceps force between the FB and MB designs were evaluated under a deep-knee-bend condition. Results At an early flexion angle, the results of contact stress showed no significant difference between the FB and MB medial UKA models compared with the intact model. However, at high flexion angles, we observed a significant increase in contact stress with the FB models compared with the intact model. On the contrary, in the case of the MB models, we found no statistically significant increment compared with the intact model. A larger quadriceps force was needed to produce an identical flexion angle for both the FB and MB UKA designs than for the intact model. At high flexion angles, a significant increase quadriceps force whit the FB model compared with the intact model. Conclusions Our results indicate that with medial UKA, the contact stress increased and greater quadriceps force was applied to the patellofemoral joint. However, performing UKA on a patellofemoral joint with osteoarthritis should not be difficult, unless anterior knee pain is present, because the increase in contact stress is negligible.
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Affiliation(s)
- Hyuck Min Kwon
- Department of Orthopedic Surgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jin-Ah Lee
- Department of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Yong-Gon Koh
- Joint Reconstruction Center, Department of Orthopaedic Surgery, Yonsei Sarang Hospital, 10 Hyoryeong-ro, Seocho-gu, Seoul, 06698, Republic of Korea
| | - Kwan Kyu Park
- Department of Orthopedic Surgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Kyoung-Tak Kang
- Department of Mechanical Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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Goh GS, Zeng GJ, Chen JY, Lo NN, Yeo SJ, Liow MHL. Ten-Year Results of Unicompartmental Knee Arthroplasty in Patients With Psychological Distress. J Arthroplasty 2020; 35:2830-2836.e1. [PMID: 32475784 DOI: 10.1016/j.arth.2020.05.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/18/2020] [Accepted: 05/04/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Although the influence of psychological distress on the outcomes of total knee arthroplasty has been described extensively, its effect on unicompartmental knee arthroplasty (UKA) is poorly defined. Furthermore, most studies in arthroplasty literature had short follow-ups of ≤1 year. We investigated the influence of psychological distress on long-term patient-reported outcomes and analyzed the change in mental health after UKA in a cohort with minimum 10 years of follow-up. METHODS Prospectively collected data of 269 patients undergoing UKA in 2004-2007 were reviewed. Patients were stratified into those with psychological distress (36-item Short-Form health survey [SF-36] Mental Component Summary [MCS] <50, n = 111) and those without (SF-36 MCS ≥50, n = 158). Clinical outcomes were obtained preoperatively, at 2 years, and 10 years. Multiple regression was used to control for age, gender, body mass index, Charlson Comorbidity Index, American Society of Anesthesiologists class, and baseline scores. The rate of expectation fulfillment and satisfaction was compared. RESULTS Psychologically distressed patients had poorer Knee Society Knee Score, Function Score, Oxford Knee Score, and SF-36 Physical Component Summary preoperatively, at 2 years, and 10 years. However, an equal proportion in each group attained the minimal clinically important difference for each score. Distressed patients had a comparable rate of satisfaction (91% vs 95%, P = .136) but lower fulfillment of expectations (89% vs 95%, P = .048). The percentage of distressed patients declined from 41% to 35% at follow-up. The mean SF-36 MCS improved by 6.9 points. CONCLUSION Although psychologically distressed patients had relatively greater pain and poorer function preoperatively and up to 10 years after UKA, a similar proportion of them experienced a clinically meaningful improvement in patient-reported outcomes.
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Affiliation(s)
- Graham S Goh
- Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore
| | - Gerald J Zeng
- Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore
| | - Jerry Y Chen
- Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore
| | - Ngai-Nung Lo
- Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore
| | - Seng-Jin Yeo
- Department of Orthopaedic Surgery, Singapore General Hospital, Singapore, Singapore
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Wang Z, Deng W, Shao H, Zhou Y, Li H. Forgotten Joint Score Thresholds for Forgotten Joint Status and Patient Satisfaction after Unicompartmental Knee Arthroplasty in Chinese Patients. J Arthroplasty 2020; 35:2825-2829. [PMID: 32482475 DOI: 10.1016/j.arth.2020.05.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 04/19/2020] [Accepted: 05/04/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND The Patient Acceptable Symptom State (PASS) and "forgotten joint" represent 2 treatment goals that arthroplasty surgeons often pursue. However, the actual Forgotten Joint Score (FJS-12) that corresponds to the PASS and forgotten joint in unicompartmental knee arthroplasty (UKA) patients remains unknown. METHODS One hundred ninety-three patients who underwent a medial UKA for knee osteoarthritis with a minimum of 1-year follow-up were included. Patients were asked to complete the FJS-12 and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) questionnaires. We used patient-reported satisfaction and the Patient's Joint Perception questions as anchors to determine the achievement of PASS and the forgotten joint, respectively. FJS-12 thresholds for PASS and the forgotten joint were calculated using the anchor-based receiver operating characteristic curve analysis. The ability of the FJS-12 and WOMAC scores to detect the PASS and forgotten joint was compared with DeLong's test. RESULTS Based on the answers to the anchor questions, 176 (91.2%) of the 193 total patients achieved the PASS and 34 (17.6%) patients achieved a forgotten joint after UKA. The FJS-12 outperformed the WOMAC with respect to detecting a forgotten joint (P = .008), but they performed equally well in terms of detecting PASS (P = .950). The FJS-12 threshold for PASS was 40.63 (sensitivity: 84.1%, specificity: 76.5%) and for the forgotten joint was 84.38 (sensitivity: 97.1%, specificity: 88.1%). CONCLUSION For UKA patients, the FJS-12 score has a superior ability to detect a forgotten joint when compared to the WOMAC. The FJS-12 threshold for the PASS is 40.63, while a score above 84.38 can be interpreted as having achieved a forgotten joint.
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Affiliation(s)
- Zhaolun Wang
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Wang Deng
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Hongyi Shao
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Yixin Zhou
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
| | - Hua Li
- Department of Orthopaedic Surgery, Beijing Jishuitan Hospital, Fourth Clinical College of Peking University, Beijing, China
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Jansen K, Beckert M, Deckard ER, Ziemba-Davis M, Meneghini RM. Satisfaction and Functional Outcomes in Unicompartmental Compared with Total Knee Arthroplasty: Radiographically Matched Cohort Analysis. JB JS Open Access 2020; 5:JBJSOA-D-20-00051. [PMID: 33299963 PMCID: PMC7722600 DOI: 10.2106/jbjs.oa.20.00051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Unicompartmental and total knee arthroplasty (UKA and TKA) have demonstrated excellent mid- and long-term outcomes and have been compared in clinical series for decades; however, to our knowledge, no study has sufficiently matched UKA and TKA cohorts on preoperative osteoarthritis severity. The purpose of this study was to evaluate patient-reported outcomes of radiographically and demographically matched UKA and TKA cohorts.
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Affiliation(s)
- Kirsten Jansen
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Mitchell Beckert
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Evan R Deckard
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, Indiana
| | - Mary Ziemba-Davis
- IU Health Hip & Knee Center, Indiana University Health Physicians, Fishers, Indiana
| | - R Michael Meneghini
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, Indiana.,IU Health Hip & Knee Center, Indiana University Health Physicians, Fishers, Indiana
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Deroche E, Martres S, Ollivier M, Gadeyne S, Wein F, Gunepin FX, Remy F, Badet R, Lustig S. Excellent outcomes for lateral unicompartmental knee arthroplasty: Multicenter 268-case series at 5 to 23 years' follow-up. Orthop Traumatol Surg Res 2020; 106:907-913. [PMID: 32631712 DOI: 10.1016/j.otsr.2020.03.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 03/05/2020] [Accepted: 03/11/2020] [Indexed: 02/03/2023]
Abstract
INTRODUCTION Isolated lateral compartment osteoarthritis of the knee (LCOA) is 10 times less frequent than medial compartment involvement. Long-term assessments of unicompartmental knee arthroplasty (UKA) in this indication are rare, with small series. HYPOTHESIS Survival and functional outcome of lateral UKA in a large series are quite acceptable; the strategy is suited for isolated LCOA. MATERIAL AND METHOD A multicenter retrospective study in 6 French health establishments included all lateral UKAs performed between January 1988 and September 2014. Clinical data (range of motion, International Knee Society (IKS) knee and function scores, satisfaction), paraclinical data (radiologic angles) and complications were prospectively entered in medical files during follow-up and analyzed retrospectively at end of follow-up. RESULTS During the study period, 311 lateral UKAs were performed in 295 patients, using 5 fixed-bearing implant models. Twenty-eight patients died within 5 years, and 15 (4.8%) were lost to follow-up. The series thus comprised 268 lateral UKAs in 63 male and 205 female patients, with a mean age of 68.8±10.5 years, including 7 cases of post-traumatic osteoarthritis and 4 of aseptic osteonecrosis. Mean follow-up was 9.1 years (range, 5-23 years), implant survivorship with failure defined as all-cause revision surgery was 85.4% at 10 years and 79.4% at 20 years. At last follow-up, IKS knee score was 87.0 and IKS function score 80.2. Maximal flexion was 125°. 94.3% of patients were satisfied or very satisfied. The main cause of revision surgery was osteoarthritis in another knee compartment (66,7%, n=26). CONCLUSION Lateral UKA showed good survivorship, comparable to medial UKA, with good functional results and excellent long-term satisfaction. LEVEL OF EVIDENCE IV, retrospective cohort study.
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Affiliation(s)
- Etienne Deroche
- Service de Chirurgie Orthopédique, Hôpital de la Croix-Rousse, Université Claude Bernard Lyon 1, 103, Grande rue de la Croix-Rousse, 69004 Lyon, France.
| | - Sébastien Martres
- Service de Chirurgie Orthopédique, Hôpital Renée Sabran, boulevard Edouard Herriot, 83406 Giens-Hyères, France
| | - Matthieu Ollivier
- Institut du Mouvement et de l'Appareil Locomoteur, Centre Chirurgical de l'Arthrose, Hôpital Sainte-Marguerite, Université Aix-Marseille, 270, boulevard de Sainte-Marguerite, 13009 Marseille, France
| | - Sylvain Gadeyne
- Polyclinique Du Parc, 48, Bis rue Henri Barbusse, 59880 Saint-Saulve, France
| | - Frank Wein
- Centre ARTIC'S, Clinique Louis Pasteur, 24, boulevard du XXI(e) Régiment d'Aviation, 54000 Nancy, France
| | - François-Xavier Gunepin
- Clinique Mutualiste de la Porte de l'Orient, 3, rue Robert de La Croix, CS 94471, 56324 Lorient cedex, France
| | - Franck Remy
- Centre de Chirurgie Orthopédique, Clinique de Saint Omer, 71, rue Ambroise Paré, 62575 Blendecques, France
| | - Roger Badet
- Centre Ostéo-Articulaire Fleming, 30, avenue Flemming, 38300 Bourgoin-Jallieu, France
| | - Sébastien Lustig
- Service de Chirurgie Orthopédique, Hôpital de la Croix-Rousse, Université Claude Bernard Lyon 1, 103, Grande rue de la Croix-Rousse, 69004 Lyon, France
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- SFHG, 52, rue Boissonade, 75014 Paris, France
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Yin Z, Qian P, Wu X, Gao F, Xu F. Unicondylar knee arthroplasty versus total knee arthroplasty in adults with isolated medial osteoarthritis: A matched study protocol. Medicine (Baltimore) 2020; 99:e21868. [PMID: 32871911 PMCID: PMC7458234 DOI: 10.1097/md.0000000000021868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The choice between unicondylar knee arthroplasty (UKA) and total knee arthroplasty (TKA) is likely to have long-term implications for patient-reported health outcomes. However, high-quality studies that compare the outcomes of TKA and UKA and their effects are still lacking in the literature. Thus, the aim of the present study was to compare the UKA and TKA techniques with regard to functional outcomes and perioperative complications in patients who had isolated medial osteoarthritis. METHODS This was a retrospective, single-center, matched-controlled study performed with approval of our hospital (Kunshan hospital of Traditional Chinese Medicine affiliated to Nanjing University of Traditional Chinese Medicine), with the ethics number KZY2020-37. To reduce the effect of selection bias and potential confounding in this observational study, a 1:1 matching algorithm was applied. The groups were split by sex, age to within 6 years, and body mass index within 5 kg/m. Thus, we retrospectively reviewed the records of 240 consecutively enrolled patients who underwent UKA and 240 patients who underwent TKA from January 2013 to June 2015 from the database of our institution. Written informed consent was obtained from all subjects participating in the trial. Clinical outcomes included range of motion, Short Form 12 score, new Knee Society Score, Western Ontario and McMaster Universities Arthritis Index, and the complications. The outcome measures were evaluated by a physiotherapist and were assessed preoperatively and postoperatively at 6 months and 2 years. The mean follow-up time was 3 years. CONCLUSION We hypothesized that there was no significant difference between the 2 groups in terms of postoperative outcomes. TRIAL REGISTRATION Our study was registered in Research Registry (researchregistry5828).
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Dai YK, Lin W, Yang GM, Lu JF, Wang F. Joint Awareness after Unicompartmental Knee Arthroplasty Evaluated with the Forgotten Joint Score. Orthop Surg 2020; 12:218-223. [PMID: 32077259 PMCID: PMC7031603 DOI: 10.1111/os.12613] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 12/02/2019] [Accepted: 12/20/2019] [Indexed: 02/05/2023] Open
Abstract
Objective To investigate the temporal relationship of medial unicompartmental knee arthroplasty (UKA) and forgotten joint score (FJS), and to analysis the predictive factors associated with FJS after medial UKA. Methods This is a cross‐sectional observational study. A total of 188 cases of medial UKA were included in this study, and all the prostheses used were Oxford mobile‐bearing UKA from January 2016 to January 2019. All patients have completed the questionnaire of FJS, and the relevant data were obtained for 1 month (n = 38), 6 month (n = 40), 12 month (n = 42), 24 month (n = 34), and 36 month (n = 34) patient subgroups. The score ranged from 0–100, with a higher score indicating a more natural knee joint. In addition, the associations between the potential influencing factors (body mass index [BMI], age, gender, duration of onset before surgery, Kellgren‐Lawrence grade of the medial compartment before surgery) with FJS were analyzed using Pearson correlation and multiple linear regression. Results Postoperative FJSs were 44.5 ± 13.5 at 1 month,63.8 ± 10.1 at 6 months, 77.1 ± 12.2 at 12 months, 78.4 ± 12.2 at 24 months, 78.9 ± 12.5 at 36 months. The postoperative FJSs were lowest at 1 month and highest at 36 month (P < 0.01). The mean value of FJS kept improving until 12 months post‐operation, which was slightly lower than that of 24 months and 36 months, but there was no statistical difference between them. Pearson correlation and multiple linear regression analysis showed that gender and Kellgren‐Lawrence grade of the medial compartment before surgery had no significant influence on FJS, while age, BMI, and duration of onset before surgery had significant associations with FJS after UKA. BMI was negatively correlated with FJS, while older patients (>60) and with longer duration of onset before surgery (>3 years) were a positive predictor of good outcome for the FJS. Conclusion Patients can expect marked improvement in the natural feel of the prosthesis during the first year after UKA, slight continued improvement at 2 and 3 years. Furthermore, we identified three preoperative patient‐related factors (age, BMI, and duration of onset before surgery) that may predict the FJS after medial UKA, which can be used to guide surgical decision making.
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Affiliation(s)
- Yi-Ke Dai
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Wei Lin
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Guang-Min Yang
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Jiang-Feng Lu
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, China
| | - Fei Wang
- Department of Joint Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, China
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Deckard ER, Jansen K, Ziemba-Davis M, Sonn KA, Meneghini RM. Does Patellofemoral Disease Affect Outcomes in Contemporary Medial Fixed-Bearing Unicompartmental Knee Arthroplasty? J Arthroplasty 2020; 35:2009-2015. [PMID: 32234327 DOI: 10.1016/j.arth.2020.03.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/24/2020] [Accepted: 03/02/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Pre-existing patellofemoral disease has traditionally been a contraindication to unicompartmental knee arthroplasty (UKA), as proposed by Kozinn and Scott. More recently, some propose that patellofemoral disease can be ignored in UKA; however, the supporting research is predominantly in mobile-bearing designs. The study purpose was to evaluate the effect of patellofemoral disease osteoarthritis severity on latest outcomes after fixed-bearing medial UKA. METHODS A retrospective review of 147 consecutive medial fixed-bearing UKAs with minimum 1-year follow-up was performed. The medial and lateral patellofemoral compartments were graded according to the Kellgren & Lawrence grading system, Osteoarthritis Research Society International atlas, and intraoperative assessment performed using the Outerbridge classification. Prospectively collected University of California Los Angeles Activity Level, modern Knee Society pain and function scores, and Likert scale satisfaction were correlated with presence and severity of pre-existing patellofemoral disease. RESULTS One hundred forty-three medial UKAs were analyzed with mean age, body mass index, and follow-up of 64.1 years, 30.7 kg/m2, and 24.0 months, respectively. No correlations were observed between patellofemoral disease severity and patient-reported outcome measures at latest follow-up or improvement scores for Kellgren & Lawrence grading system or Osteoarthritis Research Society International atlas (P ≥ .058). Improvement in activity level scores was significantly higher for patients with less patellar and trochlear chondral damage despite not reaching minimal clinically important difference of 2.0 (P ≤ .028). Regardless of patellofemoral disease severity, 93% of UKAs were satisfied or very satisfied. CONCLUSION Clinical outcomes of fixed-bearing medial UKA were not adversely impacted by intraoperatively visualized or radiographically evaluated patellofemoral disease. Furthermore, long-term follow-up is warranted and caution should be used before considering patellofemoral disease as a contraindication for UKA.
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Affiliation(s)
- Evan R Deckard
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN
| | - Kirsten Jansen
- Indiana University Health Physicians, IU Health Hip & Knee Center, Fishers, IN
| | - Mary Ziemba-Davis
- Indiana University Health Physicians, IU Health Hip & Knee Center, Fishers, IN
| | - Kevin A Sonn
- Indiana University Health Physicians, IU Health Hip & Knee Center, Fishers, IN
| | - R Michael Meneghini
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN; Indiana University Health Physicians, IU Health Hip & Knee Center, Fishers, IN
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