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.

Return-to-Play Rates and Clinical Outcomes of Baseball Players After Concomitant Ulnar Collateral Ligament Reconstruction and Selective Ulnar Nerve Transposition

Background: Injury to the ulnar collateral ligament (UCL) leading to medial elbow instability and possible ulnar neuritis is common in overhead-throwing athletes. Treatment may require UCL reconstruction (UCLR) and concomitant ulnar nerve transposition (UNT) for those with preoperative ulnar neuritis. Purpose: To evaluate the return-to-play (RTP) rates, clinical outcomes, and rates of persistent ulnar neuritis after concomitant UCLR and UNT in a cohort of baseball players with confirmed preoperative ulnar neuritis. Study Design: Case series; Level of evidence, 4. Methods: Eligible patients were those who underwent concomitant UCLR and UNT at a single institution between January 2008 and June 2018 and who had a minimum of 2 years of follow-up. Additional inclusion criteria were athletes who identified as baseball players and who had a confirmed history of ulnar neuritis. Patients were contacted at a minimum of 2 years from surgery and assessed with the Kerlan-Jobe Orthopaedic Clinic (KJOC) Shoulder and Elbow Score, Andrew-Timmerman (A-T) Elbow Score, Mayo Elbow Performance Score (MEPS), Single Assessment Numeric Evaluation (SANE) score, and a custom RTP questionnaire. Results: Included were 22 male baseball players with a mean age of 18.9 ± 2.1 years (range, 16-25 years). The mean follow-up was 6.1 ± 2.4 years (range, 2.5-11.7 years). Preoperatively, all 22 patients reported ulnar nerve sensory symptoms, while 4 (18.2%) patients reported ulnar nerve motor symptoms. At the final follow-up, 7 (31.8%) patients reported persistent ulnar nerve sensory symptoms, while none of the patients reported persistent ulnar nerve motor symptoms. Overall, 16 (72.7%) players were able to return to competitive play at an average of 11.2 months. The mean postoperative patient-reported outcome scores for the KJOC Shoulder and Elbow Score, MEPS, A-T Elbow Score, and SANE score were 77.9 ± 20.9 (range, 14-100), 92.7 ± 12.7 (range, 45-100), 86.1 ± 17.1 (range, 30-100), and 85.5 ± 14.8 (range, 50-100), respectively. Conclusion: This study demonstrated that after concomitant UCLR and UNT for UCL insufficiency and associated ulnar neuritis, baseball players can expect reasonably high RTP rates and subjective outcomes; however, rates of persistent sensory ulnar neuritis can be as high as 30%.

TREATMENT OF POST-TRAUMATIC LATE ULNAR NEURITIS IN PATIENTS WITH FALSE JOINTS, OSTEOPOROSIS OF THE HEAD OF THE CONDYLE OF THE HUMERUS

The opinions of scientists on the pathogenesis of the development of late neuritis of the ulnar nerve in patients with pseudarthrosis of the condylehead, valgus deviation of the forearm are described. The authors explained the pathogenesis of complication by narrowing of the groove of the nerve on the condyle (s. Ulnaris) and excursion of the nerve during flexion and extension, followed by the development of perineuritis and neuritis. Other authors expressed the opinion that the development of neuritis is associated with microtraumatization due to the pressing ofa nerve to the internal epicondyle by the ulnar process and with the formation of an endoneural neuroma.

TREATMENT OF POST-TRAUMATIC LATE ULNAR NEURITIS IN PATIENTS WITH FALSE JOINTS, OSTEOPOROSIS OF THE HEAD OF THE CONDYLE OF THE HUMERUS

Relevance.The opinions of scientists on the pathogenesis of the development of late neuritis of the ulnar nerve in patients with pseudarthrosis ofthe condyle head, valgus deviation of the forearm are described. The authors explained the pathogenesis of complicationby narrowing of the groove of the nerve on the condyle (s. Ulnaris) and excursion of the nerve during flexion and extension, followed by the development of perineuritis and neuritis.

Double-Row Repair for Recalcitrant Medial Epicondylitis

Background: Various techniques have been described for surgical treatment of recalcitrant medial epicondylitis (ME). No single technique has yet to be proven the most effective. Purpose: To evaluate the clinical outcomes of a double-row repair for ME. Study Design: Case series; Level of evidence, 4. Methods: A retrospective review was performed on 31 consecutive patients (33 elbows) treated surgically for ME with a minimum clinical follow-up of 2 years. All patients were initially managed nonoperatively with anti-inflammatories, steroid injections, topical creams, and physical therapy. Outcome measures at final follow-up included visual analog scale (VAS) scores (scale, 0-10), time to completely pain-free state, time to full range of motion (FROM), Mayo Elbow Performance Scores (MEPS), and Oxford Elbow Scores (OES). Patients were contacted by telephone to determine current functional outcomes, pain, activity, functional limitations, and MEPS/OES. Successful and unsuccessful outcomes were determined by the Nirschl grading system. Results: The mean clinical and telephone follow-up periods were 2.3 and 3.6 years, respectively, and 31 of 33 (94%) elbows were found to have a successful outcome. The mean VAS improvement was 4.9 points, from 5.8 preoperatively to 0.9 postoperatively ( P < .001). The mean MEPS and OES at final follow-up were 95.1 and 45.3, respectively. The mean time to pain-free state and time to FROM were 87.4 and 96 days, respectively. Unlike prior studies, no difference in outcome was found between those with and without ulnar neuritis preoperatively ( P = .67). Conclusion: A double-row repair is effective in decreasing pain and improving the overall function for recalcitrant ME. Uniquely, the presence of preoperative ulnar neuritis was associated with higher patient-reported preoperative pain scores but not with poor outcomes using this protocol.

Treatment for Ulnar Neuritis Around the Elbow in Adolescent Baseball Players: Factors Associated With Poor Outcome

Background: Ulnar neuritis around the elbow is one of the injuries seen in throwing athletes. Outcomes of nonsurgical treatment and factors associated with failure outcomes have not been reported. Purpose: To investigate the outcomes of treatments for ulnar neuritis in adolescent baseball players. Study Design: Case series; Level of evidence, 4. Methods: We assessed 40 male baseball players with a mean age of 15.0 years (range, 13-17 years) who presented with ulnar neuritis. There were 19 pitchers and 21 fielders whose throwing side was affected. All patients had elbow pain, and 13 patients had hand numbness on the ulnar side. The mean Kerlan-Jobe Orthopaedic Clinic (KJOC) overhead athlete shoulder and elbow score was 52.5 at the first follow-up visit (n = 36 patients). Thirteen patients were identified with ulnar nerve subluxation, and 23 patients had concomitant elbow ulnar collateral ligament (UCL) injury. All patients underwent nonsurgical treatment, which included rehabilitation exercises and prohibition of throwing. If the nonsurgical treatment failed, we recommended surgical treatment. We investigated the outcomes of the nonsurgical and surgical treatments. Return to sports was evaluated, combined with factors associated with return to sports in nonsurgical treatment by univariate and multivariate statistical analysis. Results: The mean follow-up period was 23.6 months (range, 6-39 months). After nonsurgical treatment, 24 patients (60%) returned to the previous competition level after a mean of 2.4 months. Two patients returned to a recreational level. One patient gave up playing baseball at 2 months. The remaining 13 patients underwent surgery and returned to sports after a mean of 2.0 months postoperatively, and 12 had no limitation of sports activities. Multivariate logistical regression analysis demonstrated that hand numbness, ulnar nerve subluxation, and UCL injury were associated with failure of nonsurgical treatment ( P < .05). In addition, KJOC score of <45 at the first follow-up tended to be associated with poor outcomes of nonsurgical treatment ( P = .06). Conclusion: Hand numbness on the ulnar side, ulnar nerve subluxation, and UCL injury are strong predictors of poor outcomes after nonsurgical treatment for ulnar neuritis, and surgery provides excellent results.