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Orthopaedic Center
2016-2025
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The anterior bundle of the ulnar collateral ligament (UCL) is primary anatomical structure providing elbow stability in overhead sports, particularly baseball. Injury to UCL athletes often leads symptomatic valgus instability that requires surgical treatment.Ulnar reconstruction with a free tendon graft, known as Tommy John surgery, will allow return same competitive level sports participation majority athletes.Case series; Level evidence, 4.Ulnar (1266) or repair (15) was performed 1281...
The incidence of ulnar collateral ligament injury has increased in baseball, especially at the high school level.Ulnar baseball players is associated with overuse, high-velocity throwing, early throwing breaking pitches, and improper warm-ups.Retrospective cohort study.Follow-up physical examination questionnaire data were collected an average 35 months after reconstruction from 27 former players. Six potential risk factors evaluated: year-round seasonal event velocity more than 80 mph,...
Rehabilitation following anterior cruciate ligament surgery continues to change, with the current emphasis being on immediate weight bearing and range of motion, progressive muscular strengthening, proprioception, dynamic stability, neuromuscular control drills. The rehabilitation program should be based scientific clinical research focus specific drills exercises designed return patient desired functional goals. goal is patient's knee homeostasis his or her sport activity as safely...
Ulnar collateral ligament reconstruction (UCLR) has afforded baseball players with excellent results; however, previous studies have described only short-term outcomes.To evaluate long-term outcomes after UCLR in players.Case series; Level of evidence, 4.All UCLRs performed on competitive a minimum 10-year follow-up were identified. Surgical data collected prospectively and patients surveyed by telephone follow-up, during which scoring systems used to assess career post-baseball outcomes.Of...
Background: There has been a renewed interest in ulnar collateral ligament (UCL) repair overhead athletes because of greater understanding UCL injuries, an improvement fixation technology, and the extensive rehabilitation time to return play. Purpose/Hypothesis: To evaluate clinical outcomes novel technique with internal brace augmentation throwers. Study Design: Case series; Level evidence, 4. Methods: Patients undergoing were prospectively followed for minimum 1 year. Potential candidates...
Background: The increasing prevalence of ulnar collateral ligament (UCL) injuries, particularly in young athletes, necessitates optimization treatment options. introduction UCL repair with internal bracing offers an exciting alternative to traditional reconstruction. Purpose: To compare midterm outcomes between and reconstruction competitive athletes. Study Design: Cohort study; Level evidence, 3. Methods: authors identified athletes who underwent primary or 2013 2021 were at least 2 years...
There is currently no widely accepted treatment for massive, irreparable rotator cuff tears.Allograft reconstruction to span the remaining defect in tears will lead increased functional results and demonstrate healing of allograft on follow-up magnetic resonance imaging studies.Case series; Level evidence, 4.Between 1989 2003, 32 patients underwent massive tears. University California, Los Angeles shoulder scores were compared preoperatively postoperatively analyzed using paired Student t...
The activities required during overhead sports, particularly baseball pitching, produce large forces at the elbow joint. Injuries to joint frequently occur in athlete because of amount observed act throwing, playing tennis, or golf. may result repetitive overuse, leading tissue failure. Rehabilitation following injury surgery throwing is vital fully restore normal function and return competition as quickly safely possible. elbow, whether postsurgical, must follow a progressive sequential...
Controversy continues whether curveballs are stressful for young baseball pitchers. Furthermore, it is unproven professional pitchers have fewer kinematic differences between fastballs and off-speed pitches than lower level Kinematic kinetic data were measured 111 healthy (26 youth, 21 high school, 20 collegiate, 26 minor league, 18 major league level) throwing fastballs, curveballs, change-ups in an indoor biomechanics laboratory with a high-speed, automated digitising system. Differences...
Knee injuries, including articular cartilage damage, are common in football players and potentially career threatening. The rate of return to play (RTP) as well the factors affecting after arthroscopic chondroplasty knee is performed National Football League (NFL) athletes not known.To determine regular season NFL competition surgery lesions. In addition, identification that influence successful was investigated.Case series; Level evidence, 4.Athletes who underwent at a single institution...
High loads in the elbow during baseball pitching can lead to serious injuries, including injuries ulnar collateral ligament. These have substantial implications for individual pitchers and their teams, especially at professional level of competition. With a trend toward increased ball velocity baseball, controversy still exists regarding strength relationship between elbow-varus torque.To examine fastball torque using between- within-subjects statistical analyses.Cross-sectional...
Background: The effect of an intact fibula on rotational stability after a distal tibial fracture has, to the best our knowledge, not been clearly defined. We designed cadaver study clarify clinical impression that fixation with plate increases fractures fixed Russell-Taylor intramedullary nail. Methods: Seven matched pairs embalmed human cadaveric legs and sixteen fresh-frozen legs, including one pair, were tested. To simulate fractures, 5-mm transverse segmental defects created at same...
Lateral meniscal injury is a common and possibly career-threatening among players in the National Football League (NFL). The rate of return to play (RTP) factors that affect RTP after lateral NFL are currently not defined.The aims this study were determine regular-season game arthroscopic partial meniscectomy identify can predict ability play.Case series; Level evidence, 4.Seventy-two patients undergoing 77 meniscectomies followed (defined as successful at least 1 meniscectomy) predicting...
Few studies have documented the outcomes of superior labral anterior-posterior (SLAP) repairs in baseball players. Furthermore, results these previous varied widely and were based on small numbers patients. Hypothesis/Purpose: The purpose was to report return-to-play (RTP) rates validated subjective outcome scores for players after SLAP repair. It hypothesized that RTP would be significantly different between pitchers nonpitchers, as well among levels.Case series; Level evidence, 4.A series...
Baseball pitchers who undergo superior labrum anterior-posterior (SLAP) repair often have trouble returning to their previous level of performance. While the reason is assumed be diminished shoulder range motion or other mechanical changes, differences in pitching biomechanics between baseball with a history SLAP and no injury not been studied previously.The primary hypothesis was that compared control group, group would exhibit compromised (external rotation horizontal abduction) internal...
Background: Recent reports have highlighted the progressive increase in incidence of ulnar collateral ligament (UCL) injuries to elbow baseball players all levels. However, knowledge and other epidemiological factors regarding UCL injuries, specifically college players, is currently lacking. Purpose: To evaluate, over a period 1 year, requiring surgery National Collegiate Athletic Association (NCAA) Division I programs. Study Design: Descriptive epidemiology study. Methods: A total 155...
Background: Long-term outcomes for isolated anterior cruciate ligament (ACL) reconstructions in competitive American football athletes are well reported the literature, but little data currently exist regarding multiligament knee injury (MLKI) reconstruction outcomes. Purpose: To examine patient-reported and return-to-sport of who underwent primary, single-staged, reconstruction. Study Design: Case series; Level evidence, 4 Methods: We identified patients from our institution’s prospectively...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCatalytic pyrolysis of a coal tar in fixed-bed reactorWen Yang Wen and Edward CainCite this: Ind. Eng. Chem. Process Des. Dev. 1984, 23, 4, 627–637Publication Date (Print):October 1, 1984Publication History Published online1 May 2002Published inissue 1 October 1984https://pubs.acs.org/doi/10.1021/i200027a001https://doi.org/10.1021/i200027a001research-articleACS PublicationsRequest reuse permissionsArticle Views734Altmetric-Citations59LEARN ABOUT...