Publications by authors named "Lasun Oladeji"

Rotator cuff tears are a common cause of shoulder pain and dysfunction. Recent and historical reports suggest that a sizable percentage of patients may experience a retear of the rotator cuff despite surgical intervention. Multiple biological and mechanical factors can influence outcomes after rotator cuff surgery, including patient age, rotator cuff tear size, chronicity, and rotator cuff tissue quality.

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Anterior cruciate ligament (ACL) injuries and subsequent surgical reconstruction are exceedingly common orthopaedic procedures. Surgical technique and graft preparation techniques continue to evolve as surgeons seek to increase surgical outcomes and decrease recovery time. As such, there is significant interest in identifying tools and techniques that may enhance the surgical process for patients undergoing an ACL reconstruction.

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Article Synopsis
  • ACL injuries are increasingly common in young patients, prompting research focused on improving surgical methods for ACL reconstruction (ACLR), particularly regarding graft choice and risk factors.
  • Allograft is not recommended for these patients, and the use of bone-tendon-bone grafts is discouraged due to complications with growth plates; quadriceps tendon autograft is preferred due to lower failure rates.
  • Non-modifiable risk factors include specific anatomical traits and injury patterns, where athletes with these characteristics may benefit from additional procedures like a modified Lemaire for better outcomes in return to contact sports.
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Isolated posterior shoulder instability accounts for approximately 10% of shoulder instability cases. Patients may present after an acute trauma or with insidious onset and associated posterior shoulder pain. Knotless and all-suture anchor devices have become increasing popular and are often used in arthroscopic shoulder instability cases to avoid knot stacks and allow for the ability to re-tension the fixation.

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Meniscal root pathology has garnered increased attention over the past decade. Meniscal root tears are considered to essentially represent a meniscus-deficient state, which has led to a rise in the surgical fixation of this pathology. Meniscus root tears are classified as either radial tears within 1 cm of the root insertion, or a direct avulsion of meniscal root.

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Commonly used isotonic arthroscopic irrigation fluids, such as normal saline or lactated Ringer's, were initially formulated for intravenous administration so they do not replicate the physiologic properties of healthy synovial fluid. Synovial fluid plays an important role in regulating joint homeostasis such that even transient disruptions in its composition and physiology can be detrimental. Previous studies suggest that hyperosmolar solutions may be a promising alternative to traditional isotonic fluids.

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Anterior cruciate ligament reconstruction (ACLR) is a commonly performed orthopaedic procedure, and it is crucial to assess an athlete's readiness to safely return to sports following ACLR to minimize the risk of reinjury. Despite this, determining optimal return to play (RTP) criteria following ACLR that is accurate, accessible, and reproducible remains challenging. This review aims to discuss commonly employed RTP criteria domains, including functional assessments, patient-reported outcomes, and psychological tests, as well as emerging technologies such as magnetic resonance imaging (MRI) that may play a role as a gold standard in RTP assessment.

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Article Synopsis
  • Variability in documentation for evaluation and management (E&M) billing can impact medical management and compensation, prompting a study to evaluate reimbursement differences between templated and non-templated documentation for specific spine surgeries before and after 2021 billing changes.
  • Data was analyzed from 76 patients who underwent single-level lumbar microdiscectomy and 82 patients who had anterior cervical discectomy and fusion (ACDF) across two time periods, utilizing independent coders to determine billing levels.
  • Results indicated that templated documentation led to a significant increase in billing levels, particularly for lumbar microdiscectomy post-2021 changes, although this effect was not observed for ACDF visits.
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Bipolar "floating" clavicle injuries are infrequent upper-extremity injuries that occur secondary to a high-energy trauma, which can cause dislocation at the sternoclavicular (SC) and acromioclavicular joints. Given the rarity of this injury, there is not a consensus regarding clinical management. Although anterior dislocations can be managed nonoperatively, posterior dislocations may pose a threat to chest-wall structures and typically are managed surgically.

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Symptomatic myofascial herniations of the extremities occur infrequently; however, they can contribute to significant pain, weakness, and neuropathy with activity. Muscle herniation typically occurs through either a traumatic or congenital focal defect in the deep overlying fascia. Patients may present with an intermittently palpable subcutaneous mass and may have neuropathic symptoms, depending on the degree of nerve involvement.

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Background: This study presents surgical techniques used in conversion total knee arthroplasty (cTKA) following early failure of large osteochondral allograft joint replacement and compares postoperative patient reported outcomes measures (PROMs) and satisfaction scores with a contemporary primary total knee arthroplasty (pTKA) cohort.

Methods: We retrospectively evaluated 25 consecutive cTKA patients (26 procedures) to define the utilized surgical techniques, radiographic disease severity, preoperative and postoperative PROMs (visual analog scale [VAS] pain, knee injury and osteoarthritis outcome score for joint replacement [KOOS-JR], University of California Los Angeles Activity), expected improvement and postoperative satisfaction (5-point Likert), and reoperations in comparison with an age and body mass index propensity matched cohort of 50 pTKA performed for osteoarthritis (52 procedures).

Results: Revision components were used in 12 cTKA cases (46.

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Purpose: To compare outcomes, activity scores, and complication rates of obese and non-obese patients undergoing medial patellofemoral ligament (MPFL) reconstruction.

Methods: A retrospective review identified patients undergoing MPFL reconstruction for recurrent patellofemoral instability. Patients were included if they had undergone MPFL reconstruction and had follow-up for a minimum of 6 months.

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Introduction: Cephalomedullary nails (CMN) have proven to be effective for the fixation of unstable pertrochanteric hip fractures, but limited data exists regarding the degree of shortening that occurs with nailing systems that offer "dynamically" versus "statistically" locked helical blades. This study aimed to determine the incidence, timing, and amount of postoperative fracture shortening in patients with pertrochanteric hip fractures treated with "dynamically" versus "statistically" locked helical blades.

Methods: A retrospective review was performed on patients requiring operative fixation of pertrochanteric fractures.

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Numerous in vitro studies suggest higher osmolarity irrigation fluids potentiate a chondroprotective environment, and a recent clinical study using hyperosmolar saline for shoulder arthroscopy reported potential clinical advantages. This prospective randomized double-blind controlled clinical trial was designed to assess initial clinical outcomes associated with use of a hyperosmolar irrigation solution in patients undergoing arthroscopic knee surgery. With institutional review board approval and informed consent, patients scheduled for arthroscopic knee surgery were randomized to surgery with either isotonic lactated Ringer's (273 mOsm/L) or hyperosmolar saline (593 mOsm/L) irrigation solution.

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Background: Commercially available products used in knee cartilage reconstructive and restorative surgical practices fall under unique US Food and Drug Administration (FDA) regulatory pathways that determine the level of evidence required to market each product.

Purpose: To evaluate the levels of evidence in the literature supporting commercially available cartilage repair procedures stratified by FDA regulatory pathway (section 351 vs section 361 of "Human Cells, Tissues, and Cellular and Tissue-Based Products" [HCT/P] in the Code of Federal Regulation) with the hypothesis that products requiring approval under a stringent regulatory pathway (351 HCT/P) have higher levels of evidence in the literature supporting use and that products with a less stringent regulatory pathway (361 HCT/P) have a higher number of products available for use in the United States.

Study Design: Systematic review; Level of evidence, 4.

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Objective: To evaluate differences in pro-inflammatory and degradative mediator production from osteoarthritic knee articular cartilage explants treated with a hyperosmolar saline solution supplemented with anti-inflammatory components (l-glutamine, ascorbic acid, sodium pyruvate, epigallocatechin gallate [EGCG], and dexamethasone) or normal saline using an model for knee arthroscopy.

Design: Full-thickness 6 mm articular cartilage explants ( = 12/patient) were created from femoral condyle and tibial plateau samples collected from patients who received knee arthroplasty. One explant half was treated for 3 hours with hyperosmolar saline (600 mOsm/L) supplemented with anti-inflammatory components and the corresponding half with normal saline (308 mOsm/L).

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Background: To evaluate initial clinical outcomes using fresh meniscal allografts with high cell viability at transplantation time and meniscotibial ligament (MTL) reconstruction (Fresh) in comparison to standard fresh-frozen (Frozen) meniscus allograft transplantation (MAT).

Methods: Patients treated for medial and/or lateral meniscal deficiency using either Fresh or Frozen MAT with minimum of 1-year follow-up were identified from a prospective registry. Patient demographics, prior surgeries, MAT surgery data, complications, revisions, and failures were documented.

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Purpose: This study was designed to evaluate differences in proinflammatory and degradative mediator production and extracellular matrix degradation from osteoarthritic knee articular cartilage and meniscus explants treated with either hyperosmolar saline or isotonic saline.

Methods: 6 mm-diameter full-thickness explants were created from articular cartilage and menisci recovered after patients underwent knee surgery. One explant half was treated for 3 hours with hyperosmolar saline (600 mOsm/L) and the corresponding half with isotonic saline (300 mOsm/L).

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Objective: To identify how diabetes impacts the risk of complications requiring further surgery (deep surgical site infection, nonunion, amputation, and arthrodesis) after pilon fracture fixation.

Design: Retrospective cohort study.

Setting: Level 1 academic trauma center.

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Article Synopsis
  • - Meniscal injuries can trigger processes that contribute to early osteoarthritis, making it crucial to preserve the meniscus whenever possible.
  • - With more situations warranting meniscus repair, there's a need to improve understanding of rehabilitation and the timeline for returning to play after surgery.
  • - The article offers evidence-based guidelines for rehabilitation and return-to-play, along with a review of outcomes following isolated meniscus repairs.
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Tibial plateau fractures account for approximately 8% of fractures in the elderly population. Treatment strategies in the elderly are similar to those for younger patients; however, practitioners must account for the elevated comorbidity burden in this population. To date, few studies have analyzed age-based outcomes in patients with tibial plateau fractures.

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Knee osteoarthritis (OA) is a common condition associated with pain and physical impairment in a large segment of the population. The traditional treatment algorithm progresses from conservative modalities to nonsurgical options to surgical intervention. Surgical intervention often provides reliable pain relief but not all patients are surgical candidates and there are some patients who prefer not to have surgery.

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Background: The importance of timely pre-operative antibiotic agents for effective surgical prophylaxis has been established but the optimal duration of antimicrobial coverage post-operatively has not yet been defined clearly. The purpose of this study was to determine if prophylactic post- operative cefazolin for 23 hours decreases the risk of surgical site infection (SSI) after open reduction internal fixation (ORIF) of closed extremity fractures.

Patients And Methods: After Institutional Reviews Board approval, patients undergoing ORIF of closed extremity fractures who had a planned post-operative stay of at least 23 hours were randomly assigned to either receive 23 hours of cefazolin or a placebo.

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