Technique For Hip Arthroplasty Research Articles

Functional Outcome After Total Hip Replacement using Ceramic-on-Ceramic among young adults patients

Background: Total hip arthroplasty (THA) by using ceramic-on-ceramic (CoC) implants has emerged as a promising solution to mitigate wear debris-related complications, such as osteolysis, specifically in younger patients. This study aims to investigate the functional outcomes after total hip replacement by CoC in patients less than 30 years old, conducted within the hospitals of Khartoum, Sudan. Methods: A descriptive, cross-sectional, hospital-based study was carried out across the major healthcare institutions in Khartoum state from October 2021 to April 2022. A cohort of 32 patients, all aged 30 or below, who underwent total hip replacement were included. Thorough data analysis was conducted using advanced statistical techniques. Results: The average age of included patients was 25.69 ± 2.7 years, among them, males had a slight predominance (56.3%) with a male-to-female ratio of 1.3:1. Most patients had a secondary school level of education (37.5%), while workers constituted the largest group (34.4%). The included patients were followed-up for more than six months. The mean visual analog scale (VAS) score was 7.91 ± 0.893. Additionally, the mean modified Harris hip score was 83.03 ± 4.9 (range: 72–91), highlighting the enhanced hip function achieved through the procedure. The majority of patients (65.6%) reported good functional outcomes, followed by 28.1% who attained fair outcomes and 25.8% who reported excellent outcomes. Conclusion: The study demonstrates that CoC THA yields optimal functional outcomes among patients aged 30 years and below. The procedure exhibits remarkable potential to improve hip function and alleviate pain in this specific patient population. These findings highlight the efficacy and viability of CoC implants in younger patients, contributing to the advancement of hip arthroplasty techniques.

The SPAIRE Approach for Hip Arthroplasty: Short-Term Functional Outcome in an Indian Scenario.

Hip arthroplasty, including hemiarthroplasty and total hip arthroplasty is a common surgical procedure for patients suffering from hip joint disorders with an aim of complication free early return to activities of daily living. Various minimally invasive surgical approaches have been described to achieve this aim including a relatively new SPAIRE approach. This case series shows our technique of hip arthroplasty using the SPAIRE technique with the help of conventional instruments in an Indian Scenario at a tertiary care center in Eastern India along with our short-term functional outcomes till a follow up period of 6months. This was the prospective observational study done between May 2022 to Oct 2023 in Tata Main hospital, Jamshedpur. Total 35 patients were operated by this technique. Data including age, gender, time to return orthotic assisted mobility, Harris hip score at 2months & any complications till the follow up of 6months were recorded for each patient who underwent Hemiarthroplasty or Total Hip arthroplasty using the SPAIRE technique with conventional instruments for hip arthroplasty (performed by single surgeon - the senior author) in our tertiary care center. 35 patients were operated during this span by using the SPAIRE technique. There were 30 cases of hip hemiarthroplasty and 5 cases of total hip arthroplasty (1 bilateral). 5 patients were lost to follow up during the period of 6months. Harris hip score was measured for each patient at 2months and mean Harris hip score was 83.16. Out of 35 patients, 9 patients had excellent outcome, 14 patients had good outcome and 7 patients had fair outcome. No patient had complications such as infection, delayed wound healing, periprosthetic fractures or sciatic nerve injury. One patient reported dislocation at 3months following a fall. Mean time to return to orthotic assisted ambulation was 1.5days for all 35 patients. SPAIRE technique is one of the safe surgical approaches for primary hip arthroplasties. This minimally invasive tendon sparing approach which preserves quadricep coxa provides excellent hip stability, early return to preinjury activities. It also reduces postoperative complications such as dislocation.

Pathogenesis and modern methods for treatment of hip infectious arthritis: a review

Background. One of the little-studied but long-known problems is determining the optimal treatment regimen for patients with infectious arthritis of the hip joint. Existing studies offer various methods of conservative and surgical treatment, which, however, do not have a fundamental evidence base. The polyetiology and variability of the clinical manifestations of infectious arthritis of the hip joint and the severity of the consequences in case of incorrectly chosen tactics require a differentiated approach to treatment and development of certain diagnostic and treatment algorithms. The aim of the review – to identify pathogenesis factors that are significant for the choice of treatment tactics and to analyze modern methods of treating infectious arthritis of the hip joint based on the data from available medical literature. Methods. For analysis, we selected 90 foreign and domestic sources published between 1997 and 2023. Inclusion criteria were: clinical studies, analytical reviews and meta-analyses of the literature. The search was performed in eLIBRARY, PubMed and Google Scholar databases. Results. The analysis showed that, despite the comparable effectiveness and advantages of individual treatment methods, their use is limited to certain indications, and the choice of the optimal one for a particular patient should take into account many etiopathogenetic factors, clinical, laboratory and instrumental data, the role of which is still insufficiently studied. Currently, throughout the world the “gold standard” for radical surgical treatment remains the technique of two-stage hip arthroplasty using an antibacterial spacer. However, encouraging results of alternative treatment methods require continued search for ways to optimize diagnostic and therapeutic tactics.

The Use of Dual-Mobility Implants Through a Direct Anterior Approach as a Safe and Effective Technique for Revision Hip Arthroplasty: The Two-Year Follow-Up of a Case Series.

Background Dislocation is one of the most prominent and challenging complications following the revision of total hip arthroplasty (THA). Dual-mobility cups are an option to address this problem. There is, however, little data on the outcomes of modern modular dual-mobility (MDM) cups in the revision of THA. In this study, the clinical and radiological outcomes following the revision of THA with an MDM cup using the direct anterior approach (DAA) were evaluated. Methodology We retrospectively reviewed patients who underwent a revision of THA between March 2017 and July 2019. The inclusion criteria were a revision of THA using an MDM cup through the DAA. A uniform acetabular implant was used in each revision. Outcome measures were assessed radiographically and clinically. The clinical outcome measures consisted of dislocation, infection, and re-revision. Functional assessment was performed using the Harris Hip Score preoperatively and at the last clinical examination in our department. Results This study retrospectively identified a cohort of 26 patients who underwent a revision of THA. Two patients were excluded due to incomplete follow-up because they died. Finally, 24 patients were included. A total of 17 isolated acetabular revisions and seven complete revisions were performed with a mean follow-up of 39 months (range = 29-59). No dislocations or deep infections were observed in our population to date. Except for one case of early aseptic loosening of the acetabular component, we observed no other signs of loosening, osteolysis, migration, or intraprosthetic dislocation. Conclusions THA revision through the DAA using an MDM cup is a safe and effective procedure. We observed no dislocation in a high-risk population undergoing THA revision surgery during a minimal follow-up of two years.

Recommendations for anesthesia management of hip and hip surgery: literature review

The authors analyzed studies on the issues of perioperative analgesia in hip and hip joint surgery. Based on the analysis, modern recommendations are presented regarding the choice of optimal anesthetic techniques for proximal femoral fractures and hip arthroplasty. Early surgical intervention in older patients contributes to the restoration of the supporting function of the limb, enables rapid rehabilitation, and reduces the risk of life-threatening complications. This requires pain relief for preoperative preparation and high-quality intraoperative and postoperative pain relief, allowing early rehabilitation of the patient. The review included materials from recent congresses, and webinars of the European Society of Regional Anesthesia Pain Treatment. According to many authors, ileofascial blockade is the method of choice for preoperative anesthesia for proximal femoral fractures. Variants of the blockades of the branches of the lumbar and sacral plexuses in various anatomical spaces and plane blocks are considered. In addition, recommendations of the PROSPECT group (Procedure Specific Postoperative Pain Management) on the use of various technologies in the perioperative period are considered based on data from multicenter randomized trials and meta-analyses in relation to a specific procedure. The effectiveness of new approaches to the branches of the lumbar plexus was also considered, for example, suprainguinal ileofascial blockade and blockade of the pericapsular nerves. Anesthesiologists have used relatively new and traditional tools available to reduce pain and speed up postoperative recovery for patients with injuries and undergoing surgery for the proximal femur. Although the effectiveness of not all of them is confirmed by evidence-based medicine, clinical practice shows a positive effect on their use.

A randomized controlled trial of iliopsoas plane block vs. femoral nerve block for hip arthroplasty

BackgroundIliopsoas plane block (IPB) is a novel analgesic technique for hip surgery that retains quadriceps strength. However, evidence from randomized controlled trial is remains unavailable. We hypothesized that IPB, as a motor-sparing analgesic technique, could match the femoral nerve block (FNB) in pain management and morphine consumption, providing an advantage for earlier functional training in patients underwent hip arthroplasty.MethodsWe recruited ninety patients with femoral neck fracture, femoral head necrosis or hip osteoarthritis who were scheduled for unilateral primary hip arthroplasty were recruited and received either IPB or FNB. Primary outcome was the pain score during hip flexion at 4 h after surgery. Secondary outcomes included quadriceps strength and pain scores upon arrival at post anesthesia care unit (PACU) and at 2, 4, 6, 24, 48 h after surgery, the first time out of bed, total opioids consumption, patient satisfaction, and complications.ResultsThere was no significant difference in terms of pain score during hip flexion at 4 h after surgery between the IPB group and FNB group. The quadriceps strength of patients receiving IPB was superior to those receiving FNB upon arrival at PACU and at 2, 4, 6 and 24 h after surgery. The IPB group showed a shorter first time out of bed compared to the FNB group. However, there were no significant differences in terms of pain scores within 48 h after surgery, total opioids consumption, patient satisfaction and complications between the two groups.ConclusionIPB was not superior to FNB in terms of postoperative analgesia for hip arthroplasty. However, IPB could serve as an effective motor-sparing analgesic technique for hip arthroplasty, which would facilitate early recovery and rehabilitation. This makes IPB worth considering as an alternative to FNB.Trial registrationThe trial was registered prior to patient enrollment at the Chinese Clinical Trial Registry (ChiCTR2200055493; registration date: January 10, 2022; enrollment date: January 18, 2022; https://www.chictr.org.cn/searchprojEN.html).

Evolution of Concepts: Can Personalized Hip Arthroplasty Improve Joint Stability?

Hip arthroplasty procedures are successful and reproducible. However, within the first two post-operative years, hip dislocations are the most common cause for revisions. This is despite the majority of the dislocations having the acetabular component within what is described as the 'safe zone'. The limitations of such boundaries do not take into account the variability of individual hip anatomy and functional pelvic orientation that exist. An alternative concept to address hip instability and improve overall outcomes is functional acetabular orientation. In this review article, we discuss the evolution of concepts, particularly the kinematic alignment technique for hip arthroplasty and the use of large-diameter heads to understand why total hip arthroplasty dislocations occur and how to prevent them.

Rise of the robots: are they coming?

The use of technology has increased over the last decade across all surgical specialties. Robotics is the ultimate tool and can accomplish accuracy and consistency for surgeons executing their preoperative plan. In orthopedic surgery, robotic-assisted knee and hip arthroplasty techniques have experienced rapid growth, and the next field of interest is, without a doubt, shoulder arthroplasty. While the survival rates extend to over 90% at 10 years of follow-up and overall satisfaction rates are very high, some report that up to 10% of the patients with a shoulder replacement remain dissatisfied with their postoperative range of motion and overall functional outcome. There have been numerous advances in implant designs and materials as well as the introduction of enhanced recovery programs, however, reported patient outcomes, and reoperation rates may not always have significantly benefited from those advances in shoulder arthroplasty over the last two decades. Lately, the digitalization of shoulder arthroplasty has drawn a lot of attention with the intent to improve the correction of joint deformities and component implantation, possibly leading to enhanced patient outcomes after shoulder arthroplasty. The potential benefits of shoulder robots are multiple. First, by converting data from imaging or intraoperative anatomy mapping, a patient-specific 3-dimensional representation of the joint may facilitate surgical planning and subsequent boundary control for the bony resections, reaming, and implant positioning. Second, the system may allow intraoperative assessment of the range of motion and joint stability. Third, research may be facilitated and encouraged by supporting case-by-case data collection. This next evolution in surgical technology aims to make shoulder replacements accurate and reproducible in both easy and challenging shoulders and usable by both low-volume and highly experienced surgeons.

A Comparison of Risks and Benefits Regarding Hip Arthroplasty Fixation.

Since the field-changing invention of noncemented hip arthroplasty fixation in the 1980s, noncemented fixation has been progressively replacing cemented fixation. However, analyses of fixation frequencies reveal new patterns in cement versus noncemented preferences. Although cementation is again gaining ground in the United States, noncemented models remain the dominant fixation mode, seen in more than 90% of all hip arthroplasties. This stark preference is likely driven by concerns regarding implant durability and patient safety. Although advances in surgical techniques, intensive perioperative care, and improved instrument have evolved in both methods, data from large arthroplasty registries reveal shifting risks in contemporary hip arthroplasty, calling the use of noncemented fixation into question. Varying risk profiles regarding sex, age, or health comorbidities and morphological and functional differences necessitate personalized risk assessments. Furthermore, certain patient populations, based on the literature and data from large registries, have superior outcomes from cemented hip arthroplasty techniques. Therefore, we wanted to critically evaluate the method of arthroplasty fixation in primary hip arthroplasties for unique patient populations.

Selective periarticular blocks for postoperative pain after hip and knee arthroplasty.

This review aims to provide an overview of selective periarticular blocks for postoperative pain after hip and knee arthroplasty and the current evidence for their use. Most interventional analgesia techniques for hip and knee arthroplasty result in a motor block and muscle weakness. Therefore, these are not well suited for fast-track protocols. In contrast, selective pericapsular infiltration techniques provide selective joint sensory block without an associated motor block. This facilitates postoperative pain management and avoids impairing ambulation and early rehabilitation. The pericapsular blocks of the hip (pericapsular nerve group block, iliopsoas plane block, hip block), genicular nerves block, and infiltration between the popliteal artery and the capsule of the knee play an increasingly important role in providing postoperative analgesia after hip and knee arthroplasty without impeding fast-track protocols.

Hallmarks in the History and Development of Total Hip Arthroplasty.

Total hip replacement remains one of the most successful and popular operative techniques in orthopedic surgery. Over several decades, several patients have been benefited by this mechanical and surgical achievement. It is an innovation that stands among the most significant surgical and technological achievements of the 20th century. The purpose of this review was to summarize the main landmarks on the evolution of hip surgery and the resulting modern total hip arthroplasty technique.

The cement-in-cement technique is a reliable option in hip arthroplasty revision surgery: a systematic review.

The cement-in-cement technique for revision hip arthroplasty has many potential advantages and has recently gained widespread interest but still lacks evidence to support it. Our aim was to examine the surgical and patient-reported outcomes after cement-in-cement revision hip arthroplasty. A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. PubMed and EMBASE databases were searched up to February 2019 for original studies reporting the outcomes of revision hip arthroplasty surgeries using the cement-in-cement technique. The methodological quality was assessed using the methodological index for non-randomized studies scale. Sixteen non-comparative studies met the eligibility criteria, comprising 1899 hips in 1856 patients (72.2 mean age, 37% male), with a mean follow-up of 7.2years. Most studies reported only primary revisions and focused on the stem component. Intraoperative complications such as femoral or acetabular fractures (5.3%) were low and easily manageable with no relevant sequelae, as were dislocation rates (2.8% of uncomplicated events and 1.6% of cases requiring re-revision). Failure (considered if there was aseptic loosening of the cement-in-cement revised component, 2%), re-revision (9.3%), implant survival and late complication rates were favourable. Functional patient-reported outcomes showed an overall improvement above the minimal clinically important difference at final follow-up. The cement-in-cement technique is a viable option for hip arthroplasty revision surgery with low intraoperative and late complication rates, dislocations and immediate post-operative morbidity, resulting in good functional patient-reported outcomes and favourable medium-term implant survival.

Transitioning the total hip arthroplasty technique from posterior approach in lateral position to direct anterior approach in supine position-risk factors for acetabular malpositioning and the learning curve.

Cup positioning is important for optimum hip stability, avoiding component impingement and decreasing both bearing surface wear and revision rate. Transitioning from posterior approach in a lateral position to direct anterior approach (DAA) in a supine presents unique challenges for surgeons. The aim of this study was to examine the learning curve when using standard instrumentation that was not specific to DAA. A consecutive retrospective series of 537 total hip arthroplasty by DAA from May 2013 to December 2017. Cup positioning was analysed on radiographs and classified whether inside or outside two safe zones (inclination 30-50° and anteversion 10-30°). The demographic data (age, BMI, gender, neck shaft angle (NSA)), surgeon's dominant side and experience were assessed as risk factors. Eighty per cent of cups (n = 426) were in the combined safe zones. Eighty-eight per cent (n = 470) were in appropriate anteversion and 87% (n = 463) abduction. Two factors that were significant were identified: Cups of left hips operated by right-handed surgeons were more anteverted (OR = 4.06) and more vertical (OR = 2.23); females had a higher anteversion of the cup (OR = 2.42). Obesity, age and NSA were not risk factors for cup malposition. There was a spike of cups too horizontal at the beginning of the experience (OR = 3.86), and no learning curve was observed in the other orientations. With our DAA technique using standard instrumentation, there were no risk factors linked to the patient identified for cup malposition. DAA-specific instrumentation is not required to achieve optimum positioning of the cup. Surgeon has to be aware of an excess of abduction at the beginning of his experience and an excess of anteversion and adduction when performing THA on the opposite side of his dominant hand.

LPB Combined With QLB Using Single-needle Technique (LPQLB-SNT) for Hip Arthroplasty

LPB Combined With QLB Using Single-needle Technique (LPQLB-SNT) for Hip Arthroplasty

RADIOGRAPHIC EVALUATION OF EARLY OUTCOME AFTER TWO TYPES OF CEMENTLESS HIP ARTHROPLASTY

Introduction Total Hip Arthroplasty is one of the most common orthopaedic procedures. Its outcome is assessed by radiographic evaluation. Two principal radiographic parameters are cup inclination and stem position angle. Aim The study aimed to compare radiological outcomes of two total hip arthroplasty techniques: Alloclassic Zweymüller versus Corail Pinnacle endoprostheses. Material and methods Medical histories of 345 patients who had a hip replacement between 2007 and 2017 were reviewed. Patients with primary total hip arthroplasty with both of mentioned systems were included in the research. Seven observers individually evaluated the radiological images of the 67 endoprostheses (39 Alloclassic Zweymüller and 26 Corail Pinnacle). The cup inclination and the stem position angle were measured using MB-Ruler programme. Results There was no statistical difference (p > 0.338) in cup inclination angle between Alloclassic Zweymüller and Pinnacle cups, with the angle ranging from 31.01° to 58.80° (45.20° on average) and from 30.61° to 59.1° (43.60° on average), respectively. Femoral stem position did not differ between both types of endoprosthesis (p > 0.932), ranging from −1.05° to 7.87° (3.09° on average) for Alloclassic Zweymüller and 0.35° to 7.79° (3.06° on average) for Corail Pinnacle stem. ICC (Intraclass Coefficient Correlation) was estimated and their 95% confident intervals were calculated for cup inclination and stem position showing good reliability of cup inclination measurements. Conclusions Both types of endoprostheses presented similar radiological outcomes. Cup inclination can be used by non-experienced medical staff to reliably assess the postoperative radiograms. Keywords: cementless hip replacement, radiological outcomes, imaging.

Etiology, Evaluation, and Management of Dislocation After Primary Total Hip Arthroplasty.

» The rate of dislocation after primary total hip arthroplasty has decreased, but given the high volume of total hip arthroplasty procedures that are performed, dislocation remains a common complication.» The etiology of dislocation after total hip arthroplasty is multifactorial and depends on the patient’s characteristics as well as the orthopaedic surgeon’s operative techniques and decisions regarding implants.» A detailed assessment of the patient, preoperative planning, a thorough understanding of the anatomy, proper surgical technique, and knowledge of the biomechanics of the implant decrease the likelihood of dislocations following total hip arthroplasty.» The advent of new techniques and procedures has further reduced the occurrence of dislocation following total hip arthroplasty. However, should dislocation occur, primary management or revision total hip arthroplasty techniques provide excellent results to salvage the mobility and function of the hip.

Kinematic alignment technique for total hip and knee arthroplasty: The personalized implant positioning surgery.

Conventional techniques for hip and knee arthroplasty have led to good long-term clinical outcomes, but complications remain despite better surgical precision and improvements in implant design and quality.Technological improvements and a better understanding of joint kinematics have facilitated the progression to ‘personalized’ implant positioning (kinematic alignment) for total hip (THA) and knee (TKA) arthroplasty, the true value of which remains to be determined.By achieving a true knee resurfacing, the kinematic alignment (KA) technique for TKA aims at aligning the components with the physiological kinematic axes of the knee and restoring the constitutional tibio-femoral joint line frontal and axial orientation and soft-tissue laxity.The KA technique for THA aims at restoring the native ‘combined femoro-acetabular anteversion’ and the hip’s centre of rotation, and occasionally adjusting the cup position and design based on the assessment of the individual spine-hip relation.The key element for optimal prosthetic joint kinematics (hip or knee) is to reproduce the femoral anatomy.The transverse acetabular ligament (TAL) is the reference landmark to adjust the cup position.Cite this article: EFORT Open Rev 2018;3:98-105. DOI: 10.1302/2058-5241.3.170022

Joint replacement in patients with consequence of non-reduced hip joint fracture-dislocations

Joint replacement with the consequences of non-reduced hip fracture-dislocation is complex surgical intervention. Objec­tive: to develop a technique for hip arthroplasty and to evalu­ate its results in patients with consequences of hip fracture-dislocation. Methods: from 2004 to 2016 10 patients (10 joints) with the consequences of hip fracture-dislocation underwent total hip arthroplasty. The average age of the patients was 41.3 years (from 22 to 59), 5 men and 5 women. The shortening of the affected limb was on average 4.7 cm (2 to 8). In 5 patients, a reduction of the proximal femur with the external fixation de­vice in the «pelvic floor» system was performed before joint re­placement. The time of distraction and fixation in external fixa­tion device was on the average 55 days (from 21 to 98). The acetabular component of the endoprosthesis was set in the anatomi­cal position. Plastic defects in the acetabulum were carried out in 8 cases. Patients follow-up was from 6 month to 12 years. Results: the functional state of hip joint by the Harris score in­creased from 30 to 82 points. Patients with X-ray signs of in­stability of the endoprosthesis components were not identified. Complete restructuring of autograft was carried out in 100 % of cases. Complications related to external fixation device: 1 case — superficial soft tissue infection around the pin, 1 — fracture of the pin, 1 — early periprosthetic infection, 1 — re­current dislocation. Conclusions: the restoration of the hip joint rotation center and the length of the affected limb due to the use of the «pelvis – femur» external fixation device before joint repllacement, the reconstruction of the acetabular wall, taking into account the type of defect and the anatomical position of the endoprosthesis cup, allowed to minimize complications and obtain positive results in patients with consequences of hip fracture-dislocation.

Cemented Versus Cementless Primary Hip Replacement: Assessment of Leg Length Inequality

Objective: Following hip arthroplasty surgeries, leg length inequality (LLI) has been reported to be a leading cause of orthopaedic surgery malpractice claims. Most of them developed lengthening of the limb rather than shortening. Small lengthening (≤10 mm) are usually well tolerated by patients and may go unnoticed. In fact, absolute equalisation of limbs length is difficult to achieve and LLI could be minimised but not be avoided. Therefore, this cross-sectional study analysed and compared the LLI between two different techniques of hip arthroplasty (HA); Cemented and cementless. Materials and methods: Twenty-six patients underwent HA within the period from January 2012 to December 2014, 5 (19.2%) of them underwent cemented HA while 21 (80.8%) patients underwent cementless HA. The same principal orthopaedic surgeon has performed all these surgeries to reduce the bias that observed in other similar studies which were conducted by multiple surgeons. The method of measurement depended on the true clinical measurement using the tape measure. Pre- and postoperatively, we measured the length of both lower limbs for each patient and classified into; equal, lengthening and shortening groups by comparing the affected side length to the normal side. Finally, we compared the postoperative overall mean LLI between these two techniques. Results: This study revealed that the overall mean of postoperative LLI in the cemented group was – 2.00 while in the cementless group was 3.81. There was no significant statistical difference between LLI developed in these two groups (P value, 0.361). Conclusion: We concluded that, in this study, the utilization of cement in HA surgeries has no impact on the incidence of postoperative LLI. Key words: Cemented, Cementless, Inequality, Leg Length, Limb Length, Hip Arthroplasty, Uncemented.

Limb-Sparing Using Total Hip Arthroplasty in a Dog with Femoral Head Osteosarcoma

Background: Osteosarcoma (OSA) is the most common primary bone tumor of the appendicular skeleton of dogs. It mainly affects the metaphyseal region of long bones in large and giant breed dogs.The markedly aggressive and metastatic character of the disease leads to an invariably poor to unfavorable prognosis.Although amputation is commonly performed, different surgical techniques may be used to preserve the limb. The most common methods of limb preserving surgeries involve the use of endoprosthesis and allogeneic or autologous grafts. This report describes the successful use of total hip replacement to treat a 3-year-old male dog, with OSA in the femoral head and neck.Case: This report describes the successful use of total hip replacement to treat a 3-year-old male dog, with OSA in the femoral head and neck. The OSA stage IA located in the femoral head and neck was resected and treated through the limb-sparing. The bone defect and joint function was reconstructed with total hip arthroplasty technique using a cementless hip prosthesis. The result of the histopathological analysis of the excised bone tissue showed a minimally productive osteoblastic osteosarcoma. To date, the patient shows satisfactory movement rate and motion range, with no pain to palpation and without lameness in that limb. The radiographic follow-up after 24 months showed no local recurrence, metastasis pulmonary or complications related to the implant. Total hip arthroplasty resulted in safe recovery of orthopedic signs associated with osteosarcoma of the femoral head and neck, effectively acting as a limb preserving surgery after 32 months.Discussion: The limb-sparing procedure is an option to control local tumors that has become more popular among owners that do not accept the amputation of the limb. Similarly, it is a good alternative when another condition may interfere with the other limbs or may require amputation of another limb. The size and the potential for weight gain of the dog in this study could compromise its ambulation later, and it was a factor in the decision for the limb-sparing surgery. The allografts can be used to reconstruct the proximal femur, but they were not considered a viable option for this patient because of the reported complications, including graft fracture, non-union with the host bone and collapse of subchondral bone. The hip region does not allow the realization of arthrodesis because this joint is highly mobile, so the use of prosthetics as described is ideal for the preservation of joint biomechanics. Furthermore, the implant provides rapid postoperative recovery and immediate stability. Mean survival times were not significantly different between the limb-sparing and amputation techniques without adequate chemotherapy. In this case, despite the recommendation, the patient was monitored continuously without the association of adjuvant treatments according to the owner’s choice. The complications related with the use of cortical allograft, endoprosthesis, and pasteurized autograft include infection (31-60%), local recurrence (15-28%) or implant failure (11-40%). The implant luxation is the most common non-traumatic acute complication in the short term after limb-sparing surgery of proximal femur in humans and total hip replacement in dogs. To date, no complications have been observed after the procedure was performed. In conclusion, preservation of limbs in cases of osteosarcoma is favorable depending on the degree of involvement, but it requires specific techniques according to the location, to improve the quality of life and animal survival. In this case, the total hip arthroplasty for initial osteosarcoma in the femoral head and neck got an unexpected result, especially given the nature of osteosarcoma, limitations of wide excision with this approach and lack of adjuvant therapy.