Elbow Ulnar Collateral Ligament Reconstruction Research Articles

Trends in Elbow Ulnar Collateral Ligament Repairs and Reconstructions and an Analysis Between Low- and High-Volume Surgical Centers: A 10-Year Study in New York State.

Elbow ulnar collateral ligament (UCL) reconstruction (UCLR) is the gold standard for operative treatment of UCL tears, with renewed interest in UCL repairs. To (1) assess trends in rates of UCLR and UCL repair and (2) identify predictors of complications by demographic, socioeconomic, or surgical center volume factors. Descriptive epidemiology study. Patients who underwent UCLR or UCL repair at New York State health care facilities between 2010 and 2019 were retrospectively identified; concomitant ulnar nerve procedures among the cohort were also identified. Surgical center volumes were classified as low (<99th percentile) or high (≥99th percentile). Patient information, neighborhood socioeconomic status quantified using the Area Deprivation Index, and complications within 90 days were recorded. Poisson regression analysis was used to compare trends in UCLR versus UCL repair. Multivariable regression was used to determine whether center volume, demographic, or socioeconomic variables were independent predictors of complications. A total of 1448 UCL surgeries were performed, with 388 (26.8%) concomitant ulnar nerve procedures. UCLR (1084 procedures; 74.9%) was performed more commonly than UCL repair (364 procedures; 25.1%), with patients undergoing UCL repair more likely to be older, female, and not privately ensured and having undergone a concomitant ulnar nerve procedure (all P < .001). With each year, there was an increased incidence rate ratio for UCL repair versus UCLR (β = 1.12 [95% CI, 1.02-1.23]; P = .022). The authors identified 2 high-volume centers (720 UCL procedures; 49.7%) and 131 low-volume centers (728 UCL procedures; 50.3%). Patients undergoing UCL procedures at high-volume centers were more likely to be younger and male and receive workers' compensation (all P < .001). UCL repair and ulnar nerve-related procedures were both more commonly performed at low-volume centers (P < .001). There were no significant differences in 3-month infection, ulnar neuritis, instability, arthrofibrosis, heterotopic ossification, or all-cause complication rates between low- and high-volume centers. The only significant predictor for all-cause complication was Medicaid insurance (OR, 2.91 [95% CI, 1.20-6.33]; P = .011). A rising incidence of UCL repair compared with UCLR was found in New York State, especially among female patients, older patients, and nonprivate payers. There were no differences in 3-month complication rates between high- and low-volume centers, and Medicaid insurance status was a predictor for overall complications within 90 days of operation.

Biomechanical comparison of ulnar collateral ligament reconstruction with single-tunnel proximal suspensory fixation versus modified docking technique

Despite technical advancement, elbow ulnar collateral ligament (UCL) reconstruction is a challenging procedure due to the limitations regarding the challenging tunnel placement and potential injury to the ulnar nerve. Furthermore, current techniques for reconstruction and repair are inferior functionally and biomechanically when compared to native UCL tissue. A modified docking technique using a single-tunnel proximal suspensory fixation may reduce complications and potentially provide a technique for UCL reconstruction that is biomechanically superior. Decreasing the number of bone tunnels decreases the number of places that bone tear through could occur. The purpose was to evaluate and compare the biomechanical performances for 2 elbow UCL reconstruction techniques: (1) standard docking technique (SD) and (2) a proximal single tunnel (PST) technique using a suspensory fixation. We hypothesized that the PST technique would be biomechanically superior to the SD technique. Twelve matched pairs of cadaveric elbows were dissected and fixed at 70 degrees for biomechanical testing. Gracilis grafts were used for a docking reconstruction and the modified reconstruction with a PST suspensory fixation. A cyclic valgus torque protocol was used to precondition specimens for either reconstruction technique and the ulnohumeral gapping was then assessed. Following gapping measurements, postsurgical specimens underwent a valgus rotation applied at a rate of 5°/s until the anterior band of the UCL failed or fracture occurred. Ultimate load to failure, stiffness, and mode of failure were recorded. There were no statistical differences between the two groups. Mean rotational stiffness of the SD (2.3±0.6 Nm/deg) compared to the PST (1.9±0.7 Nm/deg) (P=.41) and mean ultimate failure torque of the SD (30.5±9.2 Nm) compared to the PST (30.9±8.6 Nm) (P=.86) were similar. There was also no statistically significant difference (P=.83) when comparing the native UCL ulnohumeral gapping (6.0±2.0 mm) to the mean ulnohumeral gapping of the SD reconstruction (6.0±1.8 mm). This study compares the biomechanical strength of elbow UCL reconstructions performed using the SP technique to that of a PST technique. Among all tested parameters, including ultimate failure torque, stiffness, and ulnohumeral gapping, there were no statistically significant differences between the 2 techniques.

Biomechanical Comparison of Ulnar Collateral Ligament Reconstruction With and Without Suture Augmentation

Background: A common concern associated with elbow ulnar collateral ligament (UCL) reconstruction is the amount of time required for recovery and rehabilitation. For example, for Major League Baseball pitchers, the average time to return to competition ranges from 13.8 to 20.5 months. Suture tape augmentation has shown the ability to provide additional soft tissue stability across other joints in the body. By providing an additional checkrein to the UCL reconstruction while the graft is healing, it may be possible to accelerate the rehabilitation process in overhead athletes and thus effect a quicker return to sports. Purpose: To compare elbow valgus stability and load to failure between UCL reconstruction with and without suture tape augmentation. Study Design: Controlled laboratory study. Methods: Fresh-frozen cadaveric elbows (N = 24) were dissected to expose the UCL. Medial elbow stability was tested with the UCL intact, deficient, and reconstructed utilizing the 3-strand docking technique with or without suture augmentation. A 3-N·m valgus torque was applied to the elbow, and valgus rotation of the ulna was recorded via motion-tracking cameras as the elbow was cycled through a full range of motion. After kinematic testing, reconstructed specimens were loaded to failure at 70° of elbow flexion. Results: UCL-deficient elbows demonstrated significantly greater valgus rotation when compared with intact and internally braced reconstructed elbows at every angle of flexion tested and when compared with unbraced UCL-reconstructed elbows at 50° to 120° of flexion (P < .05). There were no significant differences between intact and UCL-reconstructed elbows with and without suture augmentation at any flexion angle tested. When loaded to failure, unbraced reconstructed elbows failed at a significantly lower torque as compared with elbows with UCL reconstruction with suture tape augmentation (P < .01). Conclusion: In this cadaveric model, 3-strand UCL reconstruction with suture augmentation did not overconstrain the elbow throughout all flexion angles when compared with the native state and UCL reconstruction alone, while providing greater load to failure. Clinical Relevance: Suture tape augmentation may provide the additional strength necessary to accelerate rehabilitation after UCL reconstruction.

Routine diagnostic arthroscopy with elbow ulnar collateral ligament reconstruction does not reduce the need for future valgus extension overload-related surgeries: a systematic review and meta-analysis.

Valgus extension overload syndrome (VEOS) most commonly affects overhead athletes and consists of a constellation of conditions involving the medial, posterior, and lateral elbow, with the most widely discussed being ulnar collateral ligament (UCL) injuries. Many athletes with UCL tears also have findings consistent with other VEOS conditions, though these are not consistently symptomatic. Given the high rate of concomitant pathology, many authors have recommended performing arthroscopy at the time of UCL reconstruction (UCLR) to diagnose and address concomitant VEOS pathology; however, it is not known if this practice actually leads to a reduction in subsequent surgeries for VEOS conditions following index UCLR. The purpose of this systematic review and meta-analysis was to determine if performing routine diagnostic arthroscopy (RDA) in patients undergoing UCLR was associated with a lower incidence of future VEOS-related surgery. This study was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, with the primary outcome of interest being the likelihood of needing future surgery to address VEOS conditions with or without RDA at the time of index UCLR. The proportion and incidence rate of subsequent VEOS-related surgeries following UCLR with and without RDA were compared in mixed effects models. There were 25 eligible studies from an initial 1335 systematically identified articles, with results for 2118 UCLR cases. Among these, there were a total of 94 reported VEOS-related surgeries. The proportion of subsequent VEOS-related surgeries was lower when UCLR was performed with RDA (0.40%, 95% CI 0.00%-3.51%) than without (1.16%, 95% CI 0.03%-3.25%), but the difference was not significant (P = .584). The incidence rate of VEOS-related surgeries was 0.16 (95% CI 0.00-0.95) per 100 person-years with RDA and 0.14 (95% CI 0.00-0.55) per 100 person-years without RDA (P = .942). RDA preceding UCLR does not significantly reduce the proportion or rate of subsequent surgery for other VEOS conditions. There has been a decrease in RDA utilization with UCLR over time for athletes with torn/incompetent UCLs but otherwise no known symptomatic VEOS conditions, and this trend appears to be justified based on these findings.

Elbow Ulnar Collateral Ligament Reconstruction in Baseball Players

Elbow Ulnar Collateral Ligament Reconstruction in Baseball Players

Ulnar Neuritis and Its Affect on Outcomes of Elbow Ulnar Collateral Ligament Reconstruction

Background: No study has specifically evaluated how ulnar neuritis and ulnar nerve transposition affect outcomes in baseball players undergoing ulnar collateral ligament (UCL) reconstruction (UCLR). Purpose: To evaluate the effects of ulnar neuritis and ulnar nerve transposition in baseball pitchers undergoing UCLR in regard to return to sport, time to return to sport, and need for revision or additional surgery. Study Design: Cohort study; Level of evidence, 3. Methods: At a single institution, all consecutive baseball pitchers undergoing UCLR between 2002 and 2015 were identified. Ulnar neuritis was diagnosed preoperatively by the following criteria: ulnar nerve symptoms, Tinel sign at the elbow, symptomatic subluxation, and numbness/paresthesia in an ulnar nerve distribution of the hand. The primary outcome of the study was return to sport. The secondary outcomes of the study were time to return to sport, length of playing career, and revision or additional surgery. Results: A total of 578 UCLRs were performed in baseball players; of these, 500 UCLRs were performed in pitchers. Ulnar neuritis was diagnosed in 97 (19.4%) baseball pitchers presenting with UCL injury. There were no significant differences in patient characteristics or surgical techniques performed for reconstruction between baseball pitchers with and without ulnar neuritis. In review of injury characteristics, ulnar neuritis was significantly more likely to be diagnosed in pitchers with an acute onset of UCL injury (P = .03). Transposition of the ulnar nerve was more commonly performed in players with ulnar neuritis (47%) versus those without ulnar neuritis (10%; P = .0001). The players who had ulnar neuritis and underwent UCLR had a significantly lower odds of returning to sport (odds ratio, 0.45; P = .04); however, no significant difference was found for time to return to sport and length of playing career for those with and without ulnar neuritis (P = .38 and .51, respectively). Conclusion: The study suggests that ulnar neuritis, when present preoperatively in baseball pitchers undergoing UCLR, may adversely affect their ability to return to sport, whereas ulnar nerve transposition at the time of UCLR does not alter the ability to return to sport.

Outcomes after Elbow Ulnar Collateral Ligament Reconstruction with the Docking Plus Technique in 162 Athletes (129)

Objectives:This retrospective case series examined 162 athletes who underwent ulnar collateral ligament (UCL) reconstruction (UCLR) from 2015-2018. All cases were by a single surgeon at a high volume center using the Docking Plus Technique. We previously reported outcomes in 324 athletes from 2005-2014 with 88% of patients reporting a Conway score of good or excellent. The purpose of this study was to determine if patients undergoing UCLR with the docking plus technique are able to return to sport and to better characterize the athletes needing this procedure. Our hypothesis was that our cohort would largely be able to return to their previous level of play and be mostly college level pitchers.Methods:Patients who underwent UCLR at our institution from 2015-2018 were identified and surveyed. We were able to reach a total of 162 patients by telephone for a survey. They were surveyed for subjective and objective outcomes and for background demographic information including information about their athletic careers before and after UCLR.Results:Of our 162 respondents, 150 (93%) returned to the same level of play or higher (excellent on Conway classification). 9 did not return to competitive play (6%) while 3 returned to a lower level of play. 5 of those who did not return to competitive play had their surgery senior year of college. Most athletes were in college at the time of surgery (61%), followed by high school (32%). 2 athletes were in middle school, the rest were playing professionally. Baseball pitchers compromised the majority of our respondents (75%). Catchers were 9% of respondents and infielders/outfielders were 3% each. Other athletes participated in cheerleading, lacrosse, track, volleyball, gymnastics, wrestling, and football, though these were far less common. The mean and median ages of survey respondents was 19 (12-31). 61% described an acute “pop” leading to their elbow pain while 39% endorses no acute event but chronic elbow pain leading to presentation. Of the 61% presenting with an acute rupture, 40% endorsed an “acute on chronic,” presentation. 58% of baseball players played more than just baseball in high school while 41% had specialized in just baseball. The average return to competitive play was 12 months, with a range of 4-24. The range for pitchers was 9-24 with an average of around.Conclusions:Overall, our results mirror those of previous studies. 93% of our patients returned to the same level of competition or higher after undergoing UCLR with the docking plus technique. Most of those who did not return were college seniors who graduated. Our typical patient was a college baseball pitcher around 19 years old. Return to play with our set rehab protocol was around 1 year, though faster for non-pitchers. The docking plus technique provides reliable treatment for chronic or acute UCL tears in athletes.

No Difference in Complications Between Elbow Ulnar Collateral Ligament Reconstruction With the Docking and Modified Jobe Techniques: A Systematic Review and Meta-analysis

Background: The most commonly used techniques for elbow ulnar collateral ligament reconstruction (UCLR) are the docking and modified Jobe figure-of-8 techniques. Previous literature has suggested that UCLR with the docking technique is associated with fewer complications; however, these studies included results from the original classic Jobe technique without controlling for the effects of flexor pronator mass (FPM) detachment and routine submuscular ulnar nerve transposition (UNT). Purpose/Hypothesis: This study sought to compare the rates of complications and subsequent unplanned surgical procedures between the docking and figure-of-8 techniques. We hypothesized that there would be no significant difference in the rates of complications or subsequent unplanned surgical procedures between the techniques when the FPM was preserved and no routine submuscular UNT was performed. Study Design: Systematic review and meta-analysis; Level of evidence, 4. Methods: This study was performed in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. A series of mixed-effects multivariate metaregression models were implemented using the restricted maximum likelihood method. Complications and subsequent unplanned surgical procedures were modeled as Freeman-Tukey transformed incidence rates for variance stabilization, and nerve-specific complications were assessed as the Freeman-Tukey transformed proportion of cases, with back-transformation to estimate summary effects. Results: There were 19 studies eligible for qualitative analysis, consisting of 1788 cases of UCLR (303 docking, 1485 figure-of-8), 18 of which were suitable for quantitative analysis (1769 cases; 291 docking, 1478 figure-of-8). A total of 338 complications were reported (17 for docking, 321 for figure-of-8), the majority of which were nerve related. Additionally, a total of 75 subsequent unplanned surgical procedures were related to the index UCLR procedure. There was no significant difference in the rate of complications (P = .146) or proportion of cases with nerve-specific complications (P = .127) between the docking and figure-of-8 techniques when controlling for FPM preservation versus detachment with submuscular UNT. FPM detachment with submuscular UNT was independently associated with a significantly higher proportion of postoperative nerve-related complications (P = .004). There was also no significant difference in the rates of subsequent unplanned surgical procedures between the docking and figure-of-8 techniques (P = .961), although FPM detachment with routine submuscular UNT was independently associated with a significantly higher incidence of subsequent unplanned surgical procedures. Conclusion: The results of this study demonstrate no significant difference in the rates of complications or subsequent unplanned surgical procedures between the figure-of-8 and docking techniques for UCLR when controlling for FPM preservation versus detachment with submuscular UNT. With modern muscle-sparing approaches and avoiding submuscular UNT, the modified Jobe technique does not differ significantly from the docking technique in terms of complication rates, proportions of cases with nerve-specific complications, or rates of subsequent unplanned surgical procedures.

Biomechanical Comparison of Ulnar Collateral Ligament Reconstruction with and without Internal Bracing

Objectives:A common concern associated with elbow ulnar collateral ligament (UCL) reconstruction surgery is the amount of time required for recovery and rehabilitation. For example, the average time to return to competition is around 15-18 months for major league baseball pitchers. The Internal Brace (Arthrex Inc.) has shown to provide additional soft tissue stability across other joints in the body. By providing an additional checkrein to the UCL reconstruction while the graft is healing, it may be possible to expedite the rehabilitation process in throwing athletes, providing a quicker return to sport.Purpose:To compare elbow valgus stability and load to failure between UCL reconstructions with and without suture augmentation.Methods:24 fresh-frozen cadaveric elbows were dissected to expose the UCL. Medial elbow stability was tested with the UCL intact, deficient, and reconstructed utilizing the 3-ply docking technique either with or without suture augmentation. A 3 N·m valgus torque was applied to the elbow and valgus rotation of the ulna was recorded via motion tracking cameras as the elbow was cycled through a full range of motion. After kinematic testing, specimens were loaded to failure at 70 degrees of elbow flexion.Results:UCL-deficient elbows demonstrated significantly greater valgus rotation compared to intact and internally-braced reconstructed elbows at every angle of flexion tested and at 50-120o flexion when compared to un-braced UCL reconstructed elbows, p<0.05. There were no significant differences at any angle of flexion between intact and UCL reconstructed elbows both with and without an internal brace at any flexion angle tested. Braced reconstructions had consistently greater valgus stability at every angle tested compared to unbraced reconstructions, but this was not significant, Figure 1B. When loaded to failure un-braced reconstructed elbows failed at a significantly lower torque value compared to UCL reconstructions with a brace, p<0.01, Figure 1A.Conclusions:UCL reconstruction with internal bracing does not over constrain the elbow throughout all flexion angles when compared to the 3-ply docking technique while providing greater biomechanical stiffness. Internal bracing may provide the additional stability necessary to accelerate rehabilitation following ulnar collateral ligament reconstruction.

Modified Jobe Versus Docking Technique for Elbow Ulnar Collateral Ligament Reconstruction: A Systematic Review and Meta-analysis of Clinical Outcomes

Background: The modified Jobe and docking techniques are the most common techniques used for elbow ulnar collateral ligament (UCL) reconstruction. Previous systematic reviews have suggested that the docking technique results in superior outcomes as compared with the Jobe (figure-of-8) technique. However, these included results from earlier studies in which the flexor-pronator mass (FPM) was detached and an obligatory submuscular ulnar nerve transposition was performed. Purpose/Hypothesis: The purpose was to compare the outcomes and return-to-play (RTP) time between the docking and figure-of-8 techniques for UCL reconstruction. We hypothesized that there would be no significant difference in the proportion of excellent outcomes between techniques when the FPM was preserved and no obligatory submuscular ulnar nerve transposition was performed. We also hypothesized that there would be no significant difference in RTP time between techniques. Study Design: Systematic review and meta-analysis. Methods: This study was performed in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. In the primary analysis, techniques were compared in random effects models by using the restricted maximum likelihood method, with weighted effect sizes calculated as the Freeman-Tukey double-arcsine transformed proportion of excellent outcomes for variance stabilization and with summary effects estimated from the inverse double-arcsine transformation per the harmonic mean of the sample sizes. Mean RTP times for techniques were compared in a separate model. Results: There were 21 eligible articles identified, with results for 1842 UCL reconstructions (n = 320, docking; n = 1466, figure-of-8). Without controlling for the effects of flexor-pronator detachment and submuscular ulnar nerve transposition, a significantly larger proportion of excellent outcomes was observed with docking reconstruction (86.58%; 95% CI, 80.42%-91.85%) than with figure-of-8 reconstruction (76.76%; 95% CI, 69.65%-83.25%; P = .031); however, there was no significant difference between techniques when controlling for FPM preservation or detachment with submuscular nerve transposition (P = .139). There was no significant difference between techniques in time to return to sports (P = .729), although no reconstructions with FPM detachment and submuscular ulnar nerve transposition were available for RTP time analysis. Conclusion: There was no significant difference in the proportion of excellent Conway Scale outcomes or RTP time between the docking and modified Jobe techniques for UCL reconstruction when the FPM was preserved and routine submuscular ulnar nerve transposition was not performed.

Performance in Collegiate-Level Baseball Players After Elbow Ulnar Collateral Ligament Reconstruction.

Background:The increase in ulnar collateral ligament (UCL) elbow reconstructions over the past 20 years has affected younger athletes more than any other age group. Although return to play and postoperative performance have been extensively studied in professional baseball players, outcomes in collegiate baseball players are less known.Purpose/Hypothesis:The purpose of this study was to characterize return to play and changes in performance after UCL reconstruction (UCLR) in collegiate baseball players. We hypothesized that collegiate baseball players would have similar return-to-play rates compared with professional athletes and no significant differences in performance compared with matched controls.Study Design:Cohort study; Level of evidence, 3.Methods:Collegiate athletes undergoing UCLR by a single surgeon were identified. Postoperatively, individual collegiate career paths were analyzed through use of publicly available data from team websites, injury reports, and press releases. Data obtained included time to return to competition, number of collegiate seasons played after surgery, total games started and played, seasonal wins, losses, saves, innings played, hits, earned run average (ERA), home runs, shutouts, strikeouts, walks, and walks plus hit per inning pitched (WHIP). The UCLR group was compared with a matched control group of collegiate pitchers without elbow injury.Results:Of the 58 collegiate baseball players analyzed (mean ± SD age, 19.95 ± 1.19 years), 84.5% returned to play at the collegiate level. Players returned to competition at 16.98 ± 6.16 months postoperatively and competed for 1.60 ± 0.84 seasons postoperatively. In terms of career longevity, 81.0% of collegiate pitchers either completed their collegiate eligibility or remained on active rosters, and 2 players (4.1%) ultimately played at the professional level after UCLR. Compared with a matched cohort, the UCLR group had no significant differences in collegiate pitching performance statistics after surgery.Conclusion:College baseball players returned to play at a rate comparable with the rate published in prior literature on professional pitchers and often completed their collegiate playing eligibility postoperatively. Compared with controls, the UCLR group had no statistically significant differences in pitching performance postoperatively. Further studies are needed to determine the exact reasons why college players retire despite having endured extensive surgical and postoperative rehabilitation processes related to UCLR. Younger populations are experiencing elbow injuries at an increasing rate secondary to increased workloads at the amateur level. As these athletes matriculate into the collegiate ranks, they are at continued risk of sustaining UCL injury, and little explicit information is available on their prospects of return to play and career longevity after UCLR.

Elbow Ulnar Collateral Ligament Reconstruction Using the Novel Docking Plus Technique in 324 Athletes

BackgroundThis retrospective case series examined 324 athletes who received elbow ulnar collateral ligament (UCL) reconstruction by a single surgeon in a private practice over a 9-year period. The novel Docking Plus technique for elbow UCL reconstruction in 324 athletes provided good or excellent Conway score results in 88% of patients. The preponderance of previous studies examining UCL reconstruction outcomes were performed by surgeons at one of only three institutions (Andrews Institute, Hospital for Special Surgery, Kerlan Jobe Orthopedic Clinic).MethodsPatients undergoing UCL reconstruction from November 2005 to December 2014 were identified and contacted with a mailed survey and phone call. These patients were given a subjective 19 question survey assessing their outcomes from surgery.ResultsThe participants who responded to our survey were 90% male and 77% baseball players, 73% of which were pitchers. Of the baseball players who responded, 51.9% were in high school at the time of their surgery, 37% college, 6.5% minor leagues, and 2.2% in Major League Baseball. After surgery, 36% of survey responders returned to a higher level of competition than previously. For example, a high school athlete who had UCL reconstruction and went on to pitch in college. Further, 45% returned to the same level, and 7% returned to a lower level. Subjective “satisfaction,” was reported in 92% of responders and 97.2% reported that, “having surgery was a good idea.” Symptom onset in the responding athletes was 58.9% sudden, and 41.1% gradual. Overall, 90.9% of respondents returned to play in less than 1.5 years while 6.3% never were able to return. Re-tear occurred in 2.5% of patients, while 8.8% had subjective nerve dysfunction for at least 3 months following surgery.ConclusionThe Docking Plus technique can produce excellent subjective and objective results in athletes. Further study is warranted to see the effects of this procedure in other settings and determine which method of reconstruction or repair is superior.

Direct Comparison of Modified Jobe and Docking Ulnar Collateral Ligament Reconstruction at Midterm Follow-up

Background: The modified Jobe and docking techniques are the 2 most commonly employed techniques for ulnar collateral ligament (UCL) reconstruction among overhead athletes. However, no study has directly compared these techniques performed by a single surgeon. Current comparisons of these techniques have relied solely on systematic reviews and biomechanical studies. Hypothesis: There will be no difference in outcomes or return to play between the modified Jobe and docking techniques in elbow UCL reconstruction surgery. Study Design: Cohort study; Level of evidence, 3. Methods: Twenty-five modified Jobe and 26 docking UCL-reconstructive surgical procedures were performed by a single surgeon, each with a minimum 2-year follow-up. Kerlan-Jobe Orthopaedic Clinic (KJOC) score, Conway Scale, years played, sex, handedness, sport, position, palmaris versus gracilis graft type, concomitant or future arm/shoulder injuries, and need for additional surgery were compared between the groups. Patients who underwent future shoulder or elbow surgery, no matter the cause, were included. Results: No difference was seen between the modified Jobe and docking reconstruction cases in regard to KJOC scores (mean ± SD: 78.4 ± 19.5 vs 72.0 ± 26.0, P = .44), Conway Scale (return to play, any level: 84% vs 82%, P = .61), years played (14.7 ± 6.2 vs 15.2 ± 5.8, P = .52), sex (P = .67), handedness (P ≥ .999), sport (P = .44), position (P = .60), level of competition (P = .59), and future surgery (12% vs 4%, P = .35). Palmaris graft type had significantly higher KJOC scores than hamstring grafts (82.3 ± 20.0 vs 57.9 ± 21.2, P = .001). The mean follow-up was 6.1 years in the modified Jobe group and 7.3 years in the docking group (mean = 6.7, P = .47). Conclusion: The modified Jobe and docking techniques are both suitable surgical options for elbow UCL reconstruction. There was no statistically significant difference between the techniques in regard to return to play, KJOC score, or need for subsequent surgery at 6.7-year follow-up. This is the first direct clinical comparison of these 2 techniques by a single surgeon at midterm follow-up.

The biomechanical evaluation of a novel 3-strand docking technique for ulnar collateral ligament reconstruction in the elbow

The original 2-strand docking technique for elbow ulnar collateral ligament reconstruction has recently been modified to use a 3-strand graft. To date, no biomechanical study has compared the 2 techniques. We hypothesized that the 3-strand docking technique would restore valgus laxity to its native state, with comparable load-to-failure characteristics to the 2-strand docking technique. Sixteen fresh cadaveric elbows were matched to the corresponding contralateral side from the same individual to create 8 matched pairs and were then randomized to undergo ulnar collateral ligament reconstruction using either the 2- or 3-strand technique. Valgus laxity and rotation measurements were quantified using a MicroScribe 3DLX digitizer at various flexion angles for the native state, transected state, and 1 of the 2 tested reconstructed ligaments. Each reconstruction was then tested to failure. Valgus laxity for the intact state at elbow flexion angles of 30°, 60°, 90°, and 120° was 7° ± 2°, 7° ± 2°, 6° ± 1°, and 5° ± 2°, respectively. These values were similar to those of both reconstruction techniques. On load-to-failure testing, there was no significant difference in any parameter recorded. Yield torques for the 3- and 2-strand reconstructions were 13.4 ± 4.80 N/m and 11.8 ± 4.76 N/m, respectively (P = .486). The ultimate torques were 15.7 ± 6.10 N/m and 14.4 ± 5.58 N/m for the 3- and 2-strand techniques, respectively (P = .582). The 3-strand docking technique was able to restore valgus laxity to the native state, with similar load-to-failure characteristics to the 2-strand docking technique.

Performance and Return to Sport After Tommy John Surgery Among Major League Baseball Position Players

Background: The anterior bundle of the medial ulnar collateral ligament (UCL) is the primary restraint to valgus stress at the elbow and is often injured among overhead throwing athletes. Despite prevention strategies, injuries to the elbow UCL are on the rise. Purpose: To determine (1) the return-to-sport (RTS) rate of Major League Baseball (MLB) position players after elbow medial UCL reconstruction, (2) postoperative career length and games per season, (3) pre- and postoperative performance, (4) postoperative performance versus matched control players, and (5) whether position players changed positions after UCL reconstruction. Study Design: Cohort study; Level of evidence, 3. Methods: MLB players who underwent elbow UCL reconstruction were identified (cases). Demographic and performance data were collected for each player. Matched controls were identified. RTS in MLB was defined as playing in at least 1 MLB game after UCL reconstruction. Comparisons between case and control groups and pre- and postoperative time points were made via paired samples Student t tests. Results: Thirty-three players (34 surgical procedures) were identified with a mean ± SD age of 30.2 ± 4.2 years and a mean experience in the MLB of 6.3 ± 3.9 years at the time of surgery. Twenty-eight players (84.8%) were able to RTS in MLB at a mean 336.9 ± 121.8 days. However, players ≥30 years old demonstrated a significantly lower RTS rate (53.3%) than players <30 years old (89.4%; P < .05). Catchers had a significantly shorter postoperative career length (2.8 ± 1.8 years) versus matched controls (6.1 ± 1.9 years; P < .05). Outfielders had a significantly lower wins above replacement postoperatively (0.8 ± 0.7) versus preoperatively (1.5 ± 1.1; P < .05). There were no performance differences between cases and matched controls. Twelve players (48%) returned to a different position postoperatively. Conclusion: The RTS rate for MLB position players after elbow UCL reconstruction is similar to that of pitchers. Catchers had a significantly shorter career length than that of matched controls. Outfielders performed worse postoperatively versus preoperatively. There is a high rate of position change after Tommy John surgery for infielders and outfielders.

Trends in Revision Elbow Ulnar Collateral Ligament Reconstruction in Professional Baseball Pitchers

To determine the frequency of revision elbow ulnar collateral ligament (UCL) reconstruction in professional baseball pitchers. Data were collected on 271 professional baseball pitchers who underwent primary UCL reconstruction. Each player was evaluated retrospectively for occurrence of revision UCL reconstructive surgery to treat failed primary reconstruction. Data on players who underwent revision UCL reconstruction were compiled to determine total surgical revision incidence and revision rate by year. The incidence of early revision was analyzed for trends. Average career length after primary UCL reconstruction was calculated and compared with that of players who underwent revision surgery. Logistic regression analysis was performed to assess risk factors for revision including handedness, pitching role, and age at the time of primary reconstruction. Between 1974 and 2014, the annual incidence of primary UCL reconstructions among professional pitchers increased, while the proportion of cases being revised per year decreased. Of the 271 pitchers included in the study, 40 (15%) required at least 1 revision procedure during their playing career. Three cases required a second UCL revision reconstruction. The average time from primary surgery to revision was 5.2 ± 3.2 years (range, 1-13 years). The average length of career following primary reconstruction for all players was 4.9 ± 4.3 years (range, 0-22 years). The average length of career following revision UCL reconstruction was 2.5 ± 2.4 years (range, 0-8 years). No risk factors for needing revision UCL reconstruction were identified. The incidence of primary UCL reconstructions among professional pitchers is increasing; however, the rate of primary reconstructions requiring revision is decreasing. Explanations for the decreased revision rate may include improved surgical technique and improved rehabilitation protocols. Therapeutic IV.

Trends in Elbow Ulnar Collateral Ligament Reconstruction in Professional Baseball Pitchers: Level 4 Evidence

Trends in Elbow Ulnar Collateral Ligament Reconstruction in Professional Baseball Pitchers: Level 4 Evidence

Elbow ulnar collateral ligament reconstruction: clinical, radiographic, and ultrasound outcomes at a mean 3-year follow-up

Ulnar collateral ligament (UCL) has the main function to be stress-resistant to elbow valgus overload. Multilayer tears require a reconstruction with a tendon graft. In this study, we report the clinical, radiographic, and ultrasound outcomes after tendon graft reconstruction for symptomatic UCL insufficiency. Among twenty-six subjects underwent elbow UCL reconstruction from 2006 to 2012, fifteen were available to be evaluated at a mean follow-up of 36months. Preoperative assessment included clinical examination and MRI. The outcome measures were the Mayo Elbow Performance Score (MEPS); the Oxford Elbow Score (OES); the Disabilities of the Arm, Shoulder, and Hand (DASH); and the Conway-Jobe Scale. Overall population was postoperatively investigated with X-ray and ultrasound (US). Reconstruction was performed with autograft (palmaris longus) in five cases and allograft (semitendinosus) in ten cases using the figure-of-eight configuration (five cases), the docking technique (eight cases), or a fixation with screws (two cases). We found a significant improvement in postoperative MEPS, OES, and DASH scores (p<0.01). One case was unsatisfied and required an additional procedure of ulnar nerve transposition 12months after the reconstruction. X-ray showed calcifications along the graft in ten cases. At US examination, all the grafts assessed appeared anatomically intact without structural changes, and the dynamic examination showed a slight medial laxity with the valgus stress maneuver without pain or other sign of medial instability. This study confirms the efficacy of the graft reconstruction for chronic UCL insufficiency and introduces fresh insight on the role of musculoskeletal ultrasound to evaluate the reconstructed UCL.

Elbow Ulnar Collateral Ligament Reconstruction in Javelin Throwers at a Minimum 2-Year Follow-up

Background: There are several large series of outcomes after ulnar collateral ligament (UCL) reconstruction that have 1 or 2 javelin throwers included. To our knowledge, however, there are no reports that focus solely on the results of UCL reconstruction in this group of athletes. Hypothesis/Purpose: We hypothesize that by using modern UCL reconstruction techniques, javelin throwers can reliably expect to return to their sport. Additionally, we review the principles behind postoperative rehabilitation in these athletes, as it differs from the usual approach used with baseball players. Study Design: Case series; Level of evidence, 4. Methods: This was a retrospective review of 10 javelin throwers who underwent UCL reconstruction between 2006 and 2009 using the docking technique. There were 5 college and 5 high school javelin throwers. The average age was 18.5 years (range, 18-21 years). All patients, before being indicated for ligament reconstruction, failed a course of nonoperative management that included rest, physical therapy, and a structured attempt to return to throwing. Postoperatively, patients were evaluated using the Conway Scale and the Andrews-Timmerman Score. Results: Patients were evaluated at a minimum 2-year follow-up. The average follow-up was 28.9 months after surgery (range, 24-45 months). On the Conway Scale, 9 of the 10 players had excellent outcomes (90%). There was one fair (10%) outcome. Average time to return to previous level of competition was 15 months. The mean Andrews-Timmerman Score was 97 (range, 85-100). Overall, 100% (10/10) of the patients were subjectively satisfied with their clinical outcome. Conclusion: Similar to other overhand athletes with UCL insufficiency, javelin throwers can reliably expect to return to their previous level of play after surgical reconstruction. A thorough understanding of the unique demands placed on these athletes because of the different throwing motion is helpful when tailoring their postoperative rehabilitation protocol. Additionally, these athletes must be counseled that the postoperative course is associated with an extended period of time until return to previous level of competition when compared with baseball players.

Elbow medial ulnar collateral ligament reconstruction: Clinical relevance and the docking technique

Elbow ulnar collateral ligament (UCL) reconstruction has become the standard of care for the throwing athlete with a symptomatic ruptured or insufficient ligament and the desire to resume competitive play. Since Jobe's initial description of UCL reconstruction, the technique has evolved. A novel modification was the "docking" technique developed by Altchek. Subsequently, the docking technique as originally described was slightly modified. Arthroscopy is no longer routinely performed, and in some cases, a 3-strand graft is used. We treated 21 overhand athletes with clinical and radiographic evidence of UCL insufficiency with ligament reconstruction using a modified version of the docking technique using a 3-strand graft. There were 5 professional, 11 college, and 5 high school baseball players in the reconstructed group. Athletes were evaluated postoperatively by use of the Conway Scale. Of the 21 patients who underwent the modified docking technique with a three-strand graft, 19 (90%) had excellent results. There were 2 good results and no complications. UCL reconstruction can successfully treat athletes with UCL insufficiency. Several different reconstruction techniques have been described. By use of the docking and modified docking techniques, good to excellent results can be achieved in the majority of cases with a low complication rate.