Partial Knee Arthroplasty Market Analysis & Forecast: 2026-2033
The Partial Knee Arthroplasty Market is estimated to be valued at USD 3,350 Mn in 2026 and is expected to reach USD 5,205 Mn by 2033, growing at a compound annual growth rate (CAGR) of 6.5% from 2026 to 2033.
The Partial Knee Arthroplasty Market provides specialized orthopedic implants and surgical systems for patients suffering from localized osteoarthritis. The market includes noncompartmental knee implants, fixed-bearing and mobile-bearing designs, associated robotic-assisted surgical platforms, and precision instrumentation.
The prevalence of degenerative joint diseases is increasing each year, thus creating a greater demand for bone-preserving surgical options among aging and active populations. Orthopedic surgeons and healthcare providers recognize the importance of minimally invasive procedures for improving patient recovery times and long-term kinematics. Medical regulatory bodies now emphasize clinical outcomes and cost efficiency, making partial knee replacements a preferred alternative to total knee surgery in eligible candidates.
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Technological Advancements in Partial Knee Arthroplasty |
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Demographic and Epidemiological Trends
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The use of Artificial intelligence (AI) in partial knee arthroplasty (PKA) or unicompartmental knee arthroplasty (UKA) mainly offers more accurate surgeries and personalized treatment. Based on the data of the patient, machine algorithms assist in making the right decision regarding the patient and also provide accurate 3D simulations of the surgeries in order to suit the patient’s need. AI-assisted robotic technologies as well as augmented reality (AR) navigation assist in accurate bone cuts during the process with absolute minimal chances of human error or soft tissue damage.
For instance, in March 2025, Vent Creativity, a medical software firm, announced the FDA clearance of its new AI driven software program, Hermes Knee. The software uses deep learning (DL) to create surgical plans using mechanical, kinematic, and anatomical alignment techniques for total and partial knee arthroplasty procedures.
In terms of end user, the hospitals segment contributes the highest share of 48.20% in 2026 of the market. Hospitals have full-service facilities, state-of-the-art operating rooms, orthopedic departments, and access to emergency care immediately if complications arise during or after surgery. Experienced orthopedic surgeons treat a large number of partial knee arthroplasty cases in these settings, developing their own expertise over time, which helps to foster relationships with primary care physicians and specialists who recommend patients to them. The environment maintains an integrated care pathway, from preoperative assessment to postoperative rehabilitation, and therefore offers coordinated care for all the patients.
These centers also function as training sites for young surgeons to acquaint them with state-of-the-art procedures and approaches for partial knee replacements, making them pioneers at their respective sites for adopting novel and innovative approaches and technologies for this treatment modality. The availability of multidisciplinary teams, including anesthesiologists, nurses, physiotherapists, and pain management specialists, creates a complete care ecosystem for patients.
In terms of implant type, the fixed bearing segment contributes the highest share of 57.60% in 2026 of the market due their unparalleled clinical reliability and cost-effectiveness. Surgeons often prefer these implants because they are technically less demanding to install, thus reducing the risk of perioperative errors. Unlike mobile bearing alternatives, fixed bearing designs eliminate the threat of bearing dislocation, a crucial factor in maintaining long-term patient safety.
Moreover, the progress in cross-linked polyethylene have mitigated historic wear concerns, making these tried-and-true devices the gold standard for a wide patient demographic. Their lower price point and high success rates make them highly attractive to procurement departments looking to optimize value-based care outcomes.
For instance, in October 2023, Ortho Development Corporation unveiled the latest addition to its line of Balanced Knee® implant systems, the BKS® Uni. BKS Uni is a partial knee replacement system that makes use of the clinical legacy of the Balanced Knee System while preserving bone and streamlining surgical technique. In order to precisely and effectively treat unicompartmental knee arthritis, the BKS Uni Knee System provides surgeons with a medial fixed-bearing system of implants and instruments that are designed for intraoperative adjustments.
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North America has remained the dominant region with 36.60% in 2026 of the global Partial Knee Arthroplasty Market over the past decade. The US is the center of this expansion, with surgeons increasingly prioritizing bone preservation and ligament retention. The adoption is fueled by the rollout of the 3D printed implants and patient-specific information, which solve traditional issues with component fit and alignment. These specialized tools have transformed the procedure from a niche option into a reliable, high-performance solution for localized joint damage.
A major catalyst for this growth is the shift of surgeries to ambulatory surgical centers. They align with the cost-saving requirements and efficiency objectives of outpatient facilities as partial replacements allow for same day discharge. High precision robotics have also reduced the technical difficulty, making the surgery more predictable for a broader range of practitioners. This shift is meeting the demands of active patients in their 40s and 50s who require faster recovery times to maintain athletic lifestyles while postponing total knee surgery.
For instance, in November 2024, Zimmer Biomet Holdings, Inc., a med tech firm, received U.S. FDA Premarket Approval Application (PMA) Supplement for the Oxford® Cementless Partial Knee. This innovation enables surgeons to conduct PKR with superior fixation, higher long-term implant survival rates, and greater operating room efficiency compared to the cemented version of the Oxford Partial Knee.
The Asia Pacific market has become the fastest-growing region. Countries like India, Japan, and China are the leading contributors to this market. The region’s growth is owing to a massive number of patients with unicompartmental osteoarthritis and a growing middle class that can afford elective surgeries to stay active. The market is being reshaped by the introduction of Asian-specific patella designs which better accommodate the thinner patellas and unique bone morphology found in Asian populations compared to traditional Western models.
The region is becoming a hub for medical tourism, as high-precision robotic systems like Stryker's Mako are deployed in private hospital chains at a fraction of the cost found in North America. These factors, combined with a cultural preference for bone-preserving surgeries that allow for deeper flexion (essential for floor-based lifestyles), are cementing PKA as a primary choice for younger active patients across the region.
For instance, in January 2025, A J Hospital and Research Centre introduced a major advancement of using robots for joint replacement from Smith+Nephew US. The robotic system provides superior accuracy in joint replacement operations and results in better patient results and quicker healing times. IT incorporates sophisticated 3D imaging and live navigation features, enabling surgeons to develop customized surgical plans and position implants with exceptional precision. Notably, it’s the sole robot equipped to handle full knee, partial knee, and hip replacement surgeries.
The U.S. leads the world in performing partial knee replacement procedures, primarily because of its widespread access to cutting-edge medical technology and innovative surgical tools. Currently, demand for minimally invasive surgical procedures, those that enable patients to immediately return to their active lifestyles with minimal recovery time, is increasing dramatically among Americans seeking faster rehabilitation options. The baby boomer population, with its vast numbers and aging demographics, serves as a massive and reliable source of patients for the healthcare sector, which is actively seeking out procedures designed specifically to help them maintain their independence and quality of life. Robot-assisted technology has dramatically enhanced the precision of partial knee replacements, leading to superior outcomes and fewer complications. Major players in the orthopedic industry engage in stiff and intense competition with one another to develop and produce the best possible impact designs, advanced materials, and state-of-the-art technologies.
For instance, in January 2022, Smith+Nephew, a prominent international medical technology firm, revealed its purchase of Engage Surgical, which holds the right to the only commercially available cementless unicompartmental partial knee system in the US market. The Engage Surgical Partial Knee System represents an innovative, contemporary cementless option tailored for a growing field, offering advantages like enhanced long-term stability via biological bonding, reduced surgery duration, and compatibility with Ambulatory Surgery Centers (ASCs).
India’s market is exhibiting fast growth with increasing awareness of the partial knee arthroplasty treatment option among patients. The healthcare infrastructure in major cities has improved significantly, thus making cutting-edge orthopedic procedures accessible to the middle-class segment. Patients prefer partial knee arthroplasty because it is less invasive than total knee arthroplasty and allows for quicker recovery. The rising disposable incomes have resulted in more Indians affording these procedures without any financial strain. Insurance companies are expanding their coverage to include such surgeries, which helps in propelling the market adoption. Medical tourism has become an important revenue source as international patients travel to India for quality treatment at lower costs.
For instance, in January 2023, the world's first robotic-arm-assisted surgical system, Stryker Mako, was clinically introduced at Kokilaben Dhirubhai Ambani Hospital in Navi Mumbai. This cutting-edge ortho-robotic technology is designed for joint replacement surgery. The new robotic system was successfully utilized in its first two cases. The Mako robotic system, which has received approval from the US FDA, is applicable for total hip replacements, total knee replacements, and partial knee replacements.
| Report Coverage | Details | ||
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| Base Year: | 2025 | Market Size in 2026: | USD 3,350 Mn |
| Historical Data for: | 2020 To 2024 | Forecast Period: | 2026 To 2033 |
| Forecast Period 2026 to 2033 CAGR: | 6.5% | 2033 Value Projection: | USD 5,205 Mn |
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| Companies covered: |
Corin Group, Depuy Synthes (J&J), Exactech Inc., Lepu Medical Technology (Beijing) Co., Ltd., Medacta International, Stryker Corporation, Smith & Nephew Plc, Zimmer Biomet Holdings, B. Braun Medical (India) Pvt. Ltd., Gruppo Bioimpianti, Bodycad, Exactech, Inc., and Arthrex Inc. |
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The global expansion of the market is fueled by the increasing incidence of degenerative joint diseases, including unicompartmental knee osteoarthritis and others. As the global population ages, the natural wear and tear on knee cartilage becomes more widespread, which leads to a surge in patients suffering from localized joint degradation. This demographic shift is compounded by rising obesity rates, which place excessive mechanical stress on the knee and often damage a single section of the joint while leaving other compartments healthy.
Unlike total knee replacement, partial knee arthroplasty offers a bone-preserving alternative that appeals to sedentary elderly patients and younger active individuals seeking quicker recovery plus more natural joint kinematics. This growing patient pool, along with a preference for minimally invasive surgical interventions, remains a primary driver for the growth of the market.
Osteoarthritis cases are expected to rise by 74.9% for knee, 78.6% for hip, and 95.1% for other types of osteoarthritis by 2050 compared to 2020, according to data from the National Library of Medicine.
Osteoarthritis cases are expected to rise significantly by 2050 compared to 2020, with an increase of 74.9% for knee osteoarthritis, 78.6% for hip osteoarthritis, and 95.1% for other types, according to data from the National Library of Medicine.
The emergence of cementless implants represents a significant advancement in the market for partial knee arthroplasty devices, as orthopedic specialists are increasingly focusing on biologic fixation as an alternative to mechanical fixation. The modern implants exhibit a highly porous surface designed to replicate the structure of natural bones. As a result, orthopedic specialists favor biologic fixation as a means to enhance the implant interface, enabling it to withstand the stresses associated with an active lifestyle. For younger patients specifically, conserving native bones is an important factor because it may lower the risk of aseptic loosening caused by degraded cement. Cementless implants simplify surgery since there is no need to prepare cement or wait for it to cure. Additionally, traditional cement fixation carries the risk of thermal tissue damage.
For instance, in June 2022, global medtech leader Smith+Nephew revealed that Dr. Cyna Khalily, an orthopedic expert in hip and knee reconstructive surgery based in Louisville, KY, completed the inaugural robotic-assisted surgery using the LEGION CONCELOC Cementless Total Knee System.
The partial knee arthroplasty (PKA) market is supported by clear epidemiological demand and improving clinical outcomes in appropriately selected patients. Knee osteoarthritis remains a major cause of mobility impairment worldwide, with evidence suggesting that 10–15% of adults above 60 years experience symptomatic disease requiring surgical consideration. Among these patients, approximately 15–30% present with unicompartmental knee osteoarthritis, making them clinically suitable candidates for partial knee replacement rather than total knee arthroplasty.
Registry-based evidence from developed healthcare systems indicates a steady rise in unicompartmental knee procedures, with PKA accounting for up to one-quarter of primary knee arthroplasties in high-adoption centers. Clinical outcome studies consistently report shorter hospital stays, faster functional recovery, and improved range of motion compared with total knee replacement, contributing to higher patient satisfaction rates. Advances in implant geometry, fixation techniques, and bearing surfaces have improved survivorship, while robotic-assisted surgery and patient-specific instrumentation have enhanced alignment accuracy and reduced early revision risk.
Demographic trends further support market expansion, particularly among the 55–75 year age group, where demand for quicker rehabilitation and preservation of natural joint kinematics is high. However, adoption remains uneven due to surgeon training requirements and variability in reimbursement policies. Overall, strong procedural data, favorable functional outcomes, and technological integration position the partial knee arthroplasty market for sustained, evidence-driven growth.
Definition: The Partial Knee Arthroplasty Market encompasses unicompartmental knee osteoarthritis systems such as specialized implants, robot-assisted instrumentation, and resurfacing components for the medial, lateral, and patellofemoral compartments affected by isolated osteoarthritis. These minimally invasive solutions are widely used by orthopedic surgeons for patients with isolated osteoarthritis, thus preserving healthy bone and ligaments unlike total knee replacements. Partial knee replacements reduce recovery time, pain, and complications while improving joint function and mobility. Demand primarily comes from aging populations, orthopedic clinics, hospitals, and ambulatory surgery centers facing rising osteoarthritis cases and preferences for joint-preserving surgeries.
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About Author
Manisha Vibhute is a consultant with over 5 years of experience in market research and consulting. With a strong understanding of market dynamics, Manisha assists clients in developing effective market access strategies. She helps medical device companies navigate pricing, reimbursement, and regulatory pathways to ensure successful product launches.
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