Original Injury Research Articles

Arthroscopic Bankart repair: A matched cohort comparison of the modified Mason Allen method and the simple stitch method

IntroductionArthroscopic Bankart repair (ABR) has become a standard treatment for recurrent anterior shoulder dislocation in cases with minimal bone loss. Using the standard Bankart repair technique, the failure rate has been reported to be approximately between 4 and 35%. In addition to the original injury, multiple pathologies can occur after a dislocation including a Bankart lesion, capsular redundancy and bone defects. In cases with no significant bone loss, soft tissue plays a major role in stabilizing the shoulder joint. We hypothesized that effective repair of soft tissue with good inferior capsular shifting and proper capsulolabral restoration can create a proper level of soft tissue tension so the horizontal mattress suture method should improve outcomes. Materials and methodsA retrospective cohort study was conducted by reviewing the records of patients with recurrent anterior instability who underwent ABR at a single institution between January 2009 and December 2017. Demographic information, preoperative radiographic data including glenoid bone loss, Hill-Sachs width, glenoid track and other surgical details were retrieved from the medical records. The patients identified were divided into 2 groups. Group 1 had one modified Mason Allen stitch plus simple stitches, while Group 2 had only simple stitches. Data obtained from the patient included failure rate, patient satisfaction, the ROWE score and Walch-Duplay score at a minimum of 2 years after surgery. Risk factors for failure were also identified. ResultsGroup 1 included 50 patients (mean age 27.2 ± 9.4 years) who underwent modified Mason Allen stitch ABR (median follow-up, 59.2 months; range, 26.2–128.6 months). Group 2 included 30 patients (mean age 26.9 ± 8.5 years) who underwent simple stitch repair ABR (median follow-up, 68.0 months; range, 24.0–127.9 months). All patients met the inclusion criteria. Evaluation at the final follow-up compared Group 1 and Group 2: ROWE score (86.8 vs 76.3, P = 0.001), Walch-Duplay score (87.2 vs 82.0, P = 0.035), respectively. Failure rates were 6% in group 1 compared to 10% in group 2 (P = 0.511). ConclusionsThe modified Mason Allen stitch technique and the simple stitches technique ABR both result in excellent patient satisfaction at a minimum 2-year follow-up. Both techniques successfully restore shoulder stability, but the modified Mason Allen stitch technique results in better functional outcomes. Study designCohort study; level of evidence, 3.

A Review of Current Keloid Management: Mainstay Monotherapies and Emerging Approaches.

Commonly affecting those with skin of color, keloids are an aberrant wound response that leads to wound tissue expanding above and beyond the original cutaneous injury. Keloids are notoriously and particularly difficult to treat because of their tendency to recur after excision. The current standard of care is intralesional steroid (triamcinolone acetonide). However, because no therapy has yet proven to be fully curative, keloid treatments have expanded to include a number of options, from injections to multimodal approaches. This review details current treatment of keloids with injections (bleomycin, verapamil, hyaluronic acid and hyaluronidase, botulinum toxin, and collagenase), cryotherapy, laser, radiofrequency ablation, radiation, extracorporeal shockwave therapy, pentoxifylline, and dupilumab.

Not Your Ordinary Cause Of Hand Pain

HISTORY: An 18-year-old senior high school football player sustained an avulsion fracture to the left 5th digit proximal phalanx on October 2018 during practice which was treated with an ulnar gutter cast for 6 weeks. He played through the remaining football season and baseball season, after which, he presented to the clinic with what he felt was instability in his left hand. He reported no new trauma. Upon examination, there was mild tenderness in the 5th digit and tenderness localized to the head of the 4th metacarpal. The patient denied numbness, weakness, swelling, or bruising to the site of pain, but endorsed clicking of the 4th digit when making a fist and opening his had again. PHYSICAL EXAMINATION: Mild Boutonierre's deformity of 5th. Full ROM with all finger motions. Snapping sensation when going from fully flexed position in 4th digit to fully flexed position. Tenderness to palpation at 5th digit PIP and at 4th digit just proximal to MCP. Slightly more movement with anterior - posterior translation of the 4th metacarpal dorsally compared to the proximal phalanx. Sensation intact to light touch. DIFFERENTIAL DIAGNOSIS: 1. Stress fracture 2.Trigger Finger 3. Dieterich’s Disease 4. Bone Contusion 5. Improper rehab from initial splint immobilization from original injury TEST AND RESULTS: X-rays: Interval healing of nondisplaced fracture of the fifth digit proximal phalanx. Cystic lesion of the head of the fourth metacarpal not evident on the comparison study. MRI: Abnormality of the 4th metacarpal head including articular surface flattening with adjacent subcortical marrow edema bordered by linear somewhat serpiginous hypointense signal, perhaps sclerosis, and with some tiny subchondral cystic foci as well. Small amount of T2 hyperintense marrow signal in the visualized distal shaft of the 4th metacarpal as well. Small 4th MCP joint effusion. FINAL/WORKING DIAGNOSIS: Dieterich’s Disease (avascular necrosis of the metacarpal head) TREATMENT AND OUTCOMES: 1.Curettage of avascular necrosis and autogenous bone graft from distal radius, internal Fixation of metacarpal with K-wire and Ulnar gutter splint 4. Removal of K-wire at 6 weeks, application of ulnar gutter OT brace. 5. Home OT with ROM and muscle strengthening exercises. 6. Formal OT. Patient regained full function of the hand and returned to sports.

Functional outcome following elbow release and hardware removal after bicolumnar fixation of distal humeral fractures

IntroductionIntra-articular fractures of the distal humerus are typically treated with bicolumnar plate fixation. Despite prompt and accurate reduction and fixation, there is a high rate of complications post-surgical fixation. The purpose of this study was to determine the indications, technique, and outcomes of patients who had undergone an elbow release and hardware removal following bicolumnar plate fixation for an intra-articular fracture of the distal humerus. MethodsPatients who had undergone an elbow release and hardware removal by a single surgeon following bicolumnar fixation of an intra-articular fracture of the distal humerus were identified. Patients were contacted to participate in a chart review and to return to clinic for a follow-up visit. Patients who returned for a follow-up visit completed the DASH (Disabilities of the Arm, Shoulder and Hand), the MEPS (Mayo Elbow Performance Score), and the SF-36. ResultsForty-two patients were included in the final analysis. The average time from the original injury to the elbow release procedure was 17.5 months. There was an improvement of 33° in the mean flexion-extension arc following the procedure (p<0.001). The mean DASH score was 21 (SD=19) and the mean MEPS score was 82 (SD=16). There was a high rate of post-traumatic osteoarthritis (n=30). Two patients underwent a total elbow arthroplasty (TEA). One patient sustained a re-fracture of the distal humerus, and subsequently underwent repeat bicolumnar fixation. There were four reoperations (10%): two patients had a revision release of contracture and two patients underwent a closed manipulation. ConclusionsIt appears safe to remove both plates and to re-intervene relatively early. There is a modest but consistent improvement in flexion-extension arc, and the re-operation rate is low. Although there is a high rate of post-traumatic arthritic change radiographically, TEA was rare, and elbow-based outcome scores were good, although not normal.

Traumatic injury of the triangular fibrocartilage complex (TFCC)-a refinement to the Palmer classification by using high-resolution 3-T MRI.

The aim of this study was to investigate the MR features of the traumatic injury of the triangular fibrocartilage complex (TFCC) by using high-resolution 3-T magnetic resonance imaging (MRI) and to refine the Palmer classification system. From November 2015 to May 2019, sixty-seven patients met the including and excluding criteria and were enrolled into this retrospective study. All subjects had high-resolution 3-T MRI scan of the wrist and eleven had indirect MR arthrography of the wrist. All the MRI were read by two experienced musculoskeletal radiologists. Diagnostic sensitivity, specificity, and accuracy of MRI were calculated by using the arthroscopy and surgery as the standard of reference. A P value less than 0.05 was considered statistically significant. The interobserver agreement was assessed by kappa analysis. There were 49 cases of TFCC injuries proven by the arthroscopy or surgery. The TFCC injuries in the other 18 patients were proved by the combination of clinical follow-up examination and follow-up MRI. Among the arthroscopy- or surgery-confirmed cases, there were 32 patients with original Palmer injuries (IA = 10, IB = 19, ID = 3), 5 with capsular detachment, 4 with bucket-handle tear of the TFCC that have rarely been reported, and 8 with complex injuries that involved the listed classifications above. The sensitivities and specificities of MRI for diagnosing IA, IB, ID, complex injuries, and bucket-handle tear were 67-100% and 90-100%, and overall good to perfect interobserver agreements (kappa, 0.64-1.00). The diagnostic performance for the capsular detachment was lower (kappa, 0.38). With high-resolution 3-T MRI, more detailed injury patterns were found including capsular injuries, the horizontal tear of the articular disk, and the bucket-handle tear. It is necessary to refine the classic Palmer classification of TFCC injuries.

Step-cut osteotomy in neglected Monteggia fracture dislocation in pediatric and adolescent patients: A retrospective study.

Neglected Monteggia fracture dislocation in children leads to significant restriction of daily activities by causing decreased range of motion at elbow, stiffness, deformity, and neurological compromise. Various treatment strategies have been described in the literature and one of them is ulnar osteotomy combined with reduction of radial head and annular ligament reconstruction. The aim of this study was to evaluate the results of step-cut osteotomy without the use of bone grafting with reconstruction of annular ligament in the management of neglected Monteggia fracture dislocation in children. A retrospective study was conducted in six patients with neglected Monteggia fracture dislocation with a mean age of 8.83 years. The median interval between the original injury and the corrective surgery for 6 patients was 4.4 months (range 1-12 months). All children underwent step-cut osteotomy of ulna, open reduction of radial head, and annular ligament reconstruction. Mayo Elbow Performance Index (MEPI) score was used for evaluation. The ulnar osteotomies healed uneventfully without the need for a bone graft. Elbow range of motion improved post-op along with improved elbow functioning as indicated by raised MEPI score. The MEPI score was excellent in 5 cases and fair in 1 case. Step-cut osteotomy alone without the use of bone grafting and reinforcement with annular ligament repair is a simple yet effective technique for treating neglected Monteggia fracture dislocation.

Increasing posterior condyle cut for high-flex knee prosthesis may injure popliteus tendon origin: A comparison between real clinical setting and cadaveric study

BackgroundHigh-flex total knee prosthesis designs were proposed to improve flexion in total knee replacement (TKA). One of high-flex features is increasing posterior condyle cut which put popliteal tendon in higher risk of injury and may result in gap changes. MethodsPrevalence of popliteus footprint injuries were compared between conventional and high-flex TKA in real clinical setting. Thirty-six popliteal origin sites from eighteen fresh cadavers were measured distances between the posterior rim of popliteal tendon origin and posterior border of the lateral femoral condyle (distance A) using digital “Vernier caliper”. The mean distances were compared to posterior condyle thickness of different prosthesis designs. ResultsThe prevalence of posterior popliteus footprint injury was significantly higher in high-flex TKA compared to the conventional design TKA (17.8% vs 3.5%, p =0.005). The mean of distance A on the right knee was 9.59 mm (6.03-12.70) while the mean of distance A on the left knee was 9.13 mm (5.80-11.07). Posterior condyle thickness of the femoral prostheses varies upon their design and size from 7.4 to 10 mm for conventional model and from 8.2 to 12.5 mm for high-flex design. Possibilities of popliteal tendon injury during posterior condyle bone cut was at least 16.7% for conventional model and 27.8% for the high-flex design. ConclusionHigh-flex TKA prosthesis with thicker posterior condyle relates to higher possibility of popliteal tendon origin injury compared to standard one.

Characterization of immune cells found in keloid versus normal skin tissue

Abstract Keloids are abnormal scar formation that extends beyond the confines of the original injury. Immune cell infiltration is associated with keloid pathogenesis, but the exact mechanisms remain unknown. We aim to characterize the immune profile of keloid skin compared to normal skin in order to further understand the role of specific immune subsets in keloid formation. One abdominal normal skin sample and five keloid samples (four ear and one shoulder) were obtained from the Plastic Surgery clinics and the University of Colorado Biorepository Core Facility. Paraffin-embedded samples were stained with CD19+, CD20+, CD3+, CD8+ and FoxP3+ by the Human Immunology and Immunotherapy Initiative. The multiplex immunohistochemistry slides were scanned using Vectra 3 (PerkinElmer, MA, US) and captured images were analyzed with InForm Tissue Finder, phenotpr, and phenoptrReports (Akoya Biosciences, CA, US). CD20+ and CD19+ B cells were significantly increased in keloid tissue compared to normal skin (14.50% and 14.20% vs 6.47% and 7.56%), respectively. In contrast, no significant difference was observed in the percentage of CD3+ and CD8+ cell subsets in keloids compared to normal skin (12.92% and 4.98% vs 8.19% and 4.04%), respectively. Moreover, there was a significant increase in FoxP3+ positive cells found in keloid scars (9.68%) compared to normal skin (2.89%). Further studies examining the role of B cells and FoxP3+ cells in keloid pathogenesis are warranted.

Single vs. Combined Therapeutic Approaches in Rats With Chronic Spinal Cord Injury.

The regenerative capability of the central nervous system is limited after traumatic spinal cord injury (SCI) due to intrinsic and extrinsic factors that inhibit spinal cord regeneration, resulting in deficient functional recovery. It has been shown that strategies, such as pre-degenerated peripheral nerve (PPN) grafts or the use of bone marrow stromal cells (BMSCs) or exogenous molecules, such as chondroitinase ABC (ChABC) promote axonal growth and remyelination, resulting in an improvement in locomotor function. These treatments have been primarily assessed in acute injury models. The aim of the present study is to evaluate the ability of several single and combined treatments in order to modify the course of chronic complete SCI in rats. A complete cord transection was performed at the T9 level. One month later, animals were divided into five groups: original injury only (control group), and original injury plus spinal cord re-transection to create a gap to accommodate BMSCs, PPN, PPN + BMSCs, and PPN + BMSCs + ChABC. In comparison with control and single-treatment groups (PPN and BMSCs), combined treatment groups (PPN + BMSCs and PPN + BMSCs + ChABC) showed significative axonal regrowth, as revealed by an increase in GAP-43 and MAP-1B expression in axonal fibers, which correlated with an improvement in locomotor function. In conclusion, the combined therapies tested here improve locomotor function by enhancing axonal regeneration in rats with chronic SCI. Further studies are warranted to refine this promising line of research for clinical purposes.

833 The Importance of Trajectory Curves for the Implementation of Outcome Benchmarks in a Clinical Setting

Abstract Introduction The creation of individualized treatment plans that address social participation in burn survivors requires an understanding of the expected changes over time from the original burn injury. The Life Impact Burn Recovery Evaluation (LIBRE) Profile is a patient-reported outcome measure for social participation after burn injury. Visual representation of expected change over time of a population is achieved through the development of trajectory curves (TCs), serving as benchmarks for recovery. In order to optimize the implementation of LIBRE Profile TCs, a literature review was conducted to examine utilization of TCs in other clinical settings. Methods A review of studies published from 2014–2019, demonstrating TCs as growth or treatment models in clinical settings, was performed. Literature was identified by searching “trajectory curves,” “trajectory models,” and “clinic” or “clinical” in PubMed. Articles focusing on three areas of inquiry were included: 1) measuring individual patient growth; 2) comparing progress for similar patient cohorts to provide contextualized reference for personal growth; 3) predictive medicine/risk assessment for interventional care in various conditions. Results The initial literature review identified 141 manuscripts. A total of 107 were excluded and 34 manuscripts were reviewed and categorized based on the three areas of inquiry (Figure 1; Table 1). Positive results from TCs in all areas of inquiry were noted in 22 of the 34 the chosen studies. General trends for each area of inquiry include: an increased ability for parents and clinicians to track individual patient progress in what was primarily anthropometric studies; articles relating to comparative cohort tracking show that trajectory-driven analytical approaches offer displays of progress across similar clinical groups of recovery for given conditions. Use of TCs in predictive care or risk assessment typically relate to acute conditions such as asthma, traumatic brain injury, or degenerative conditions (neurocognitive or musculoskeletal). For the most part, these diagnoses depict a positive trend for clinicians to identify future outcomes using fitted trajectories. Conclusions These findings support the clinical use of trajectory curves to present patient-specific, cohort-relative, and predictive treatment for outcome-based results post-burn for burn survivors. Applicability of Research to Practice Future research will assess the use of LIBRE Profile recovery trajectories as benchmarks for optimization of social participation outcomes.

Repair Method for Complete High Ulnar Nerve Injury Based on Nerve Magnified Regeneration.

PurposeComplete high ulnar nerve injury can cause serious sequelae, including residual sensation and loss of movement and especially dysfunction of the intrinsic muscles of the hand. As a solution to treat complete high ulnar nerve injury, we proposed a new repair method for ulnar nerve injury based on nerve-magnified regeneration.MethodsTwenty-two patients with complete division of the ulnar nerve at a high level who were treated from May 2013 to December 2016 were divided into two groups. The proposed repair method for complete high ulnar nerve injury was performed in group I (11 patients), while the traditional repair method, ie, repair of the original injury site of the ulnar nerve, was used in group II (11 patients).ResultsThe results showed no significant difference in the mean sensory scores assigned by the Highet-Zachary scheme (the Highet Scale) between the two groups. The mean Highet Scale score of muscle strength for the first dorsal interosseus muscle was significantly better in group I than that in group II (p=0.010). In group I, 10 of 11 patients were graded as M4 or M5. Grip strength, pinch strength, and the Disabilities of the Arm, Shoulder, and Hand (DASH) score were significantly better in group I than those in group II (p<0.01).ConclusionTherefore, this method for complete high ulnar nerve injury based on nerve-magnified regeneration can shorten the path of motor nerve regeneration, effectively reduce atrophy of the intrinsic muscles of the hand, and provide better hand function.

Analysis of risk factors behind keloid

&lt;p class="abstract"&gt;&lt;strong&gt;Background:&lt;/strong&gt; Keloids are firm, thickened, bosselated tumors with fibrous tissue which expands beyond the original injury with common sites being presternum, shoulder, ear lobes. They are more common in Blacks and Hispanics than Caucasians. As there is paucity of studies from South India, this study is done to identify the epidemiological features and analyse the risk factors involved in keloid formation and compare it with previous studies.&lt;/p&gt;&lt;p class="abstract"&gt;&lt;strong&gt;Methods:&lt;/strong&gt; 60 subjects were included in the study. Keloid was diagnosed clinically and factors such as the age at presentation, gender, site, size, duration, number and predisposing factors to keloid formation were assessed among them for a period of 18 months.&lt;strong&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p class="abstract"&gt;&lt;strong&gt;Results:&lt;/strong&gt; Most of the patients were in the age group of 20-40 years and maximum were females. Majority of patients around 51.67% were affected in chest followed by shoulder (20%). In our study 61.67% patients had keloids of size ≤5 cm and 23 (38.33%) patients had size &amp;gt;5 cm. Most of the patients (41.67%) had keloids of &amp;lt;2 years duration. Maximum number of the patients (68%) had single keloid. 50% of the patients had keloids which occurred after trauma followed by acne (15%), surgery (10%) and herpes zoster (10%), burns (5%). 10% of the patients had spontaneous onset of keloids.&lt;/p&gt;&lt;p class="abstract"&gt;&lt;strong&gt;Conclusions:&lt;/strong&gt; The epidemiological features found in this study were similar to the studies conducted in the different parts of the world. Elimination of exacerbating factors will prevent further keloid formation thereby playing a crucial role in the management.&lt;/p&gt;&lt;p class="abstract"&gt; &lt;/p&gt;

Early resection of ectopic bone in patients with heterotopic ossification about the hip after trauma

ObjectivesHeterotopic ossification (HO) is a common complication in patients who have sustained high-energy trauma to the hip region. Traditionally, resection is performed after ectopic bone maturation. We hypothesized that early HO resection in patients with hip ankylosis after trauma can be performed with little chance of recurrence. DesignRetrospective clinical cohort. SettingLevel I Trauma Center Patients/participants14 patients with resection of HO about the hip performed by the senior author during a six-year period. InterventionEarly resection of Brooker Class III or IV HO. Main outcome measurementsThe original injuries, risk factors for HO, post-traumatic clinical course including the workup for HO, times from fixation to resection, surgical approach, and complications were recorded. Records were reviewed to document pre and postoperative hip motions. Pre and post-operative x-rays and CT scans were reviewed to classify the HO and localize the ectopic mass. ResultsMean injury to resection interval was 6.8-months. Nine of 14 (64%) patients were followed for a mean of 32.9-months post-resection. Indications for resection included pain, stiffness, and evolving sciatic nerve lesions. Risk factors were male gender, brain injury, and extended iliofemoral and Kocher-Langenbeck surgical approaches. Complications included gluteal vein laceration, draining wounds, and recurrence. Mean flexion-extension arc of motion was 18° (range = 0–70°) preoperatively, 100° (range = 85–125°) intra-operatively, and 94° (range = 20–110°) at final follow-up. HO recurred in nine patients; functionally significant in one. ConclusionEarly resection of HO around the hip may be performed with little chance of symptomatic recurrence. Level of evidenceThis is a Level IV retrospective case series.

Predictors of clinical outcome following revision anterior cruciate ligament reconstruction.

The underlying theme throughout this series of studies authored by the Multicenter anterior cruciate ligament (ACL) Revision Study consortium has been to determine the modifiable predictors or risk factors of long-term outcomes of revision ACL reconstruction. The observational studies described and summarized in the manuscript are both clinically relevant and of great interest in finding out the long-term consequences of the intervention and its relationship to the original injury. The successful completion of these studies has important implications for both therapy and future clinical trials. The identification of modifiable risk factors will play an important role in secondary prevention, while the identification of nonmodifiable risk factors will aid us in counseling our patients and making surgical decisions. Thus, we expect a profound clinical impact on patients' care. More importantly, this project represents an important step forward in bringing evidence to bear in clinical decision making in orthopedic surgery.

Increasing posterior condyle cut for high-flex knee prosthesis may injure popliteus tendon origin: a cadaveric study

Background: High-flex total knee prosthesis designs were proposed to improve flexion in total knee replacement (TKA). One of high-flex features is increasing posterior condyle cut which put popliteal tendon in higher risk of injury and may result in gap changes. Methods: Thirty-six popliteal origin sites from eighteen fresh cadavers were measured distances between the posterior rim of popliteal tendon origin and posterior border of the lateral femoral condyle (distance A) using digital “Vernier caliper”. The mean distances were compared to posterior condyle thickness of different prosthesis designs. Results: The mean of distance A on the right knee was 9.59 ±1.66 mm (6.03-12.70) while the mean of distance A on the left knee was 9.13 ± 1.78 mm (5.80-11.07). Posterior condyle thickness of the femoral prostheses varies upon their design and size from 7.4 to 10 mm for standard model and from 8.2 to 12.5 mm for high-flex design. Possibilities of popliteal tendon injury during posterior condyle bone cut were 16.7% to 66.7% for standard model and 27.8% to 97.2% for the high-flex design. Conclusion: High-flex TKA prosthesis with thicker posterior condyle relates to higher possibility of popliteal tendon origin injury compared to standard one.

Horizontal jumping biomechanics among elite female handball players with and without anterior cruciate ligament reconstruction: an ISU based study

BackgroundHandball is a strenuous body-contact team sport that places high loads on the knee joint. Anterior cruciate ligament (ACL) tear is one of the most devastating injuries that any handball player can suffer, and female athletes are at particular risk due to their intrinsic anatomical, hormonal, neuromuscular and biomechanical characteristics. The purpose of this study was to analyze the horizontal jumping biomechanics of female elite handball players with or without previous ACL reconstruction.MethodsTwenty-one female participants (6 with previous ACL reconstruction and 15 uninjured controls) were recruited. Two horizontal hopping tasks were evaluated using inertial sensor unit (ISU)-based technology to assess jumping biomechanics through a direct mechanics-based approach.ResultsThe athletes with previous ACL reconstruction demonstrated a significant (P < 0.05) reduction in the unilateral triple hop for distance compared with the healthy controls. Furthermore, during the initial propulsive phase of the unilateral cross-over hop, the control participants generated significantly (P < 0.05) higher force values in the mediolateral direction (the X axis) with their dominant limb compared with the ACL-reconstructed (ACL-R) limb of previously injured participants.ConclusionsThree-dimensional horizontal jumping biomechanics analyses using ISU-based technologies could provide clinicians with more accurate information regarding the horizontal jumping biomechanical patterns among elite handball female athletes. Furthermore, several mechanical alterations could still be observed among those players who had undergone previous ACL reconstruction, even when several years have passed since the original ACL injury.

Risk Factors for Trauma-Related Eviscerations: Analysis of 821 Cases.

Evisceration is the end therapeutic approach for the treatment of severe ocular trauma cases, and it is a tremendous loss for patients. In this study, we explored the changing trends in the number of surgeries performed, demographic data and ocular features, and risks for early evisceration, aiming to provide more data for the additional prevention and management strategies for this catastrophic problem. This was a retrospective study that included patients who underwent ocular evisceration at the Zhongshan Ophthalmic Center between January 2013 and December 2017. A total of 1229 evisceration cases were reviewed, and only trauma-related eviscerations were analyzed. Etiology, demographic data, ocular features, and hospitalization time were evaluated. The total number of trauma-related eviscerations recorded in the past five years was 821 cases. The number of surgeries performed was almost constant each year (164 ± 17 cases); 35% of the patients were less than ten years old at the time of the original ocular injury and 69% of them were male. Endophthalmitis led to significantly early evisceration compared with cases without endophthalmitis (P < 0.05). The group with a history of silicone oil tamponade showed a significantly longer surgical interval between trauma and evisceration than did the nonsilicone oil tamponade group (P < 0.05). Day-case hospitalization for evisceration increased from 0% to 32% over the past five years. The results of the present study show that the number of ocular trauma-related eviscerations performed in the past five years was almost unchanged and boys under ten are highly susceptible. This study also demonstrates that endophthalmitis leads to significantly early evisceration, and silicone oil tamponade may postpone ocular atrophy. Based on the study data, day-case surgery is safe for evisceration management.

Limited positive effects on jump-landing technique in girls but not in boys after 8\xa0weeks of injury prevention exercise training in youth football

PurposeTo evaluate changes in jump-landing technique in football-playing boys and girls after 8 weeks of injury prevention training.MethodsFour boys’ and four girls’ teams (mean age 14.1 ± 0.8 years) were instructed to use either the original Knee Control injury prevention exercise programme (IPEP) or a further developed IPEP, Knee Control + , at every training session for 8 weeks. Baseline and follow-up testing of jump-landing technique included drop vertical jumps (DVJ), assessed subjectively and with two-dimensional movement analysis, and tuck jump assessment (TJA).ResultsOnly minor differences in intervention effects were seen between the two IPEPs, and results are therefore presented for both intervention groups combined. At baseline 30% of the boys showed good knee control during the DVJ, normalised knee separation distances of 77–96% (versus hip) and a median of 3 flaws during the TJA. Among girls, 22% showed good knee control, normalised knee separation distances of 67–86% and a median of 4 flaws during the TJA. At follow-up, boys and girls performed significantly more jumps during TJA. No changes in jump-landing technique were seen in boys, whereas girls improved their knee flexion angle at initial contact in the DVJ (mean change + 4.7°, p < 0.001, 95% CI 2.36–6.99, d = 0.7) and their TJA total score (− 1 point, p = 0.045, r = − 0.4).ConclusionThe study showed small positive effects on jump-landing technique in girls, but not in boys, after 8 weeks of injury prevention training.Level of evidenceLevel II.Trial registrationClinical Trials gov identifier: NCT03251404

Low-velocity Gunshot Injuries to the Femur: What Is the Utility of Stabilizing Incomplete Fractures?

Extremity involvement is common among nonfatal gunshot injuries. Most of these injuries are low energy in nature and may be associated with fractures. Although displaced fractures of lower extremity long bones are often treated surgically, the purpose of this study was to review our experience in managing incomplete femur fractures caused by gunshot penetration and to develop treatment recommendations. We retrospectively reviewed clinical and radiographic data for 46 consecutive patients with incomplete femur fractures secondary to low-energy gunshot wounds. Fracture patterns included OTA/AO 31 (n = 7), 32 (n = 20), and 33 (n = 19). All fractures were nondisplaced and extra-articular. Type of treatment, clinical and radiographic healing, and related complications were recorded. Thirty-two patients (70%) were managed nonsurgically with progressive weight bearing from toe touch to full weight bearing by 6 weeks of follow-up, whereas 14 patients (30%) underwent prophylactic fixation of the femur. No differences in treatment were seen based on age, body mass index, fracture pattern, or the presence of other fractures or systemic injuries. Two of the 32 patients (6.2%) treated nonsurgically for femoral shaft fractures fell subacutely after the original injury and displaced their fractures. Both underwent reduction and fixation. All other fractures maintained alignment until union. No infections or nonunions were seen. Among patients who underwent prophylactic fixation, two underwent removal of prominent implants after union. Only 6% of incomplete femur fractures treated at our hospital required later surgery for fracture displacement. Although incomplete fractures occur infrequently, nonsurgical management with limited weight bearing seems to be successful and cost-effective for most patients. We propose initial nonsurgical management of nondisplaced femoral fractures secondary to cortical penetration from low-energy gunshot wounds.

Intra-operative rhabdomyolysis during upper limb surgery

Intra-operative rhabdomyolysis during upper limb surgery