Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 14 de 14
Filter
1.
Clin J Sport Med ; 32(3): 236-247, 2022 05 01.
Article in English | MEDLINE | ID: mdl-33797476

ABSTRACT

OBJECTIVE: The aim of this review is to provide a summary of the epidemiology, clinical presentation, pathophysiology, and treatment of traumatic brain injury in collision athletes, particularly those participating in American football. DATA SOURCES: A literature search was conducted using the PubMed/MEDLINE and Google Scholar databases for publications between 1990 and 2019. The following search phrases were used: "concussion," "professional athletes," "collision athletes," "mild traumatic brain injury," "severe traumatic brain injury," "management of concussion," "management of severe traumatic brain injury," and "chronic traumatic encephalopathy." Publications that did not present epidemiology, clinical presentation, pathophysiology, radiological evaluation, or management were omitted. Classic articles as per senior author recommendations were retrieved through reference review. RESULTS: The results of the literature review yielded 147 references: 21 articles discussing epidemiology, 16 discussing clinical presentation, 34 discussing etiology and pathophysiology, 10 discussing radiological evaluation, 34 articles for on-field management, and 32 articles for medical and surgical management. CONCLUSION: Traumatic brain injuries are frequent in professional collision athletes, and more severe injuries can have devastating and lasting consequences. Although sport-related concussions are well studied in professional American football, there is limited literature on the epidemiology and management of severe traumatic brain injuries. This article reviews the epidemiology, as well as the current practices in sideline evaluation, acute management, and surgical treatment of concussions and severe traumatic brain injury in professional collision athletes. Return-to-play decisions should be based on individual patient symptoms and recovery.


Subject(s)
Athletic Injuries , Brain Concussion , Brain Injuries, Traumatic , Football , Athletes , Athletic Injuries/diagnosis , Athletic Injuries/epidemiology , Athletic Injuries/therapy , Brain Concussion/diagnosis , Brain Concussion/epidemiology , Brain Concussion/therapy , Brain Injuries, Traumatic/epidemiology , Brain Injuries, Traumatic/therapy , Football/injuries , Humans
2.
J Orthop ; 28: 49-52, 2021.
Article in English | MEDLINE | ID: mdl-34819714

ABSTRACT

The primary objective of this retrospective study is to compare patient outcomes following a combined approach (MPFL reconstruction and TTT) to outcomes reported in the literature by patients who required either only an isolated TTT procedure to treat pathologic lateral patellar instability or isolated MPFL reconstruction to treat patellar dislocation due to MPFL insufficiency. Twenty-three patients (74%) were available for follow-up and are included in our analysis. MPFL reconstruction combined with TTT has a high rate of success for patients presenting with patellar instability and extensor mechanism mal-alignment. The risk of recurrence with this technique was low (4.3%).

3.
Clin Orthop Relat Res ; 479(5): 870-884, 2021 05 01.
Article in English | MEDLINE | ID: mdl-33835103

ABSTRACT

BACKGROUND: Pain after rotator cuff repair is commonly managed with opioid medications; however, these medications are associated with serious adverse effects. Relaxation exercises represent a potential nonpharmacologic method of pain management that can be easily implemented without substantial adverse effects; however, the effects of relaxation exercises have not been studied in a practical, reproducible protocol after arthroscopic rotator cuff repair. QUESTIONS/PURPOSES: (1) Does performing relaxation exercises after arthroscopic rotator cuff repair (ARCR) decrease pain compared with standard pain management medication? (2) Does performing relaxation exercises after ARCR decrease opioid consumption? (3) What proportion of patients who used the relaxation techniques believed they decreased their pain level, and what proportion continued using these techniques at 2 weeks? (4) Does performing relaxation exercises after ARCR affect shoulder function? METHODS: During the study period, 563 patients were eligible for inclusion; however, only 146 were enrolled, randomized, and postoperatively followed (relaxation group: 74, control group: 72); 68% (384 of 563) of patients were not contacted due to patient and research staff availability. Thirty-three patients were unenrolled preoperatively or immediately postoperatively due to change in operative procedure (such as, only debridement) or patient request; no postoperative data were collected from these patients. Follow-up proportions were similar between the relaxation and control groups (relaxation: 80%, control: 81%; p = 0.90). The relaxation group received and reviewed educational materials consisting of a 5-minute video and an educational pamphlet explaining relaxation breathing techniques, while the control group did not receive relaxation education materials. Patients recorded their pain levels and opioid consumption during the 5 days after ARCR. Patients also completed the American Shoulder and Elbow Surgeons shoulder score preoperatively and 2, 6, 13, 18, and 26 weeks postoperatively. Linear mixed models were created to analyze postoperative pain, opioid consumption measured in morphine milligram equivalents (MMEs), and shoulder function outcomes. A per-protocol approach was used to correct for patients who were enrolled but subsequently underwent other procedures. RESULTS: There was no difference in pain scores between the relaxation and control groups during the first 5 days postoperatively. There was no difference in pain scores at 2 weeks postoperatively between the relaxation and control groups (3.3 ± 3 versus 3.5 ± 2, mean difference -0.22 [95% CI -1.06 to 0.62]; p = 0.60). There was no difference in opioid consumption during the first 5 days postoperatively between the relaxation and control groups. The use of relaxation exercises resulted in lower 2-week narcotics consumption in the relaxation group than in the control group (309 ± 241 MMEs versus 442 ± 307 MMEs, mean difference -133 [95% CI -225 to -42]; p < 0.01). Sixty-two percent (41 of 66) of patients in the relaxation group believed the relaxation exercises decreased their pain levels. Fifty-two percent (34 of 66) were still performing the exercises at 2 weeks postoperatively. During the 6-month follow-up period, there was no difference in shoulder function between the relaxation and control groups. CONCLUSION: The preoperative administration of quick, basic relaxation exercises allowed patients to use appreciably lower opioid analgesic doses over the first 2 weeks after ARCR, without any worsening of pain scores. We consider this result promising but preliminary; it is possible that a more intense mindfulness intervention-the one we studied here was disseminated using only a 5-minute video-would deliver reductions in pain and further reductions in opioid usage. LEVEL OF EVIDENCE: Level II, therapeutic study.


Subject(s)
Arthroscopy/rehabilitation , Breathing Exercises , Pain, Postoperative/prevention & control , Relaxation Therapy , Rotator Cuff Injuries/surgery , Rotator Cuff/surgery , Aged , Analgesics, Opioid/therapeutic use , Arthroscopy/adverse effects , Female , Humans , Male , Middle Aged , Mindfulness , Pain Measurement , Pain, Postoperative/diagnosis , Pain, Postoperative/etiology , Pain, Postoperative/physiopathology , Philadelphia , Relaxation Therapy/adverse effects , Rotator Cuff/diagnostic imaging , Rotator Cuff/physiopathology , Rotator Cuff Injuries/diagnostic imaging , Rotator Cuff Injuries/physiopathology , Time Factors , Treatment Outcome
4.
J Am Assoc Nurse Pract ; 34(1): 62-69, 2021 Feb 18.
Article in English | MEDLINE | ID: mdl-33625162

ABSTRACT

BACKGROUND: Although stool softeners and laxatives are commonly prescribed for postoperative constipation, it is unclear if they are effective during the postoperative period. The data gained from this study will be beneficial for advanced practitioners when examining for postoperative constipation concerns. PURPOSE: This study aimed to investigate the efficacy of docusate sodium and senna glycoside in the prevention and treatment of constipation following rotator cuff repair (RCR). METHODS: Patients (n = 107) were randomized to receive docusate sodium, senna glycoside, or nothing (control) in addition to a standardized postoperative protocol. Patients maintained a daily bowel-movement log for postoperative days 0-10. Constipation symptoms and quality of life were assessed preoperatively and at 2 and 6 weeks postoperatively using the Patient Assessment of Constipation Symptoms (PAC-SYM) and Patient Assessment of Constipation Quality of Life (PAC-QOL) questionnaires. RESULTS: Sixty-seven percent of patients experienced constipation. There was no difference in the prevalence of constipation in the docusate, senna, and control groups (71.4%, 66.7%, and 64.3%, respectively; p = .88). Neither PAC-SYM nor PAC-QOL scores significantly differed between the 3 groups at any time point during 6-week follow-up (p > .05). IMPLICATIONS FOR PRACTICE: The majority (67%) of patients experience postoperative constipation following RCR. Although docustate sodium and senna glycoside are common first-line agents for the treatment of constipation, they are ineffective during the postoperative period. Providers need to explore other treatment modalities for postoperative constipation pain.


Subject(s)
Dioctyl Sulfosuccinic Acid , Quality of Life , Constipation/drug therapy , Humans , Rotator Cuff , Sennosides , Treatment Outcome
5.
Orthopedics ; 43(2): 85-90, 2020 Mar 01.
Article in English | MEDLINE | ID: mdl-31881088

ABSTRACT

Factors motivating patients to undergo rotator cuff repair (RCR) have not been thoroughly investigated. The purpose of this study was to investigate patient and surgeon decision-making factors for RCR, as well as the use of conservative treatment, and their relationship with shoulder function. A total of 144 adult patients undergoing arthroscopic RCR completed a 13-item questionnaire assessing the importance of surgical decision-making factors. Preoperative conservative treatments were also recorded. Surgeons also completed a similar 5-item questionnaire assessing surgeon decision-making factors preoperatively. American Shoulder and Elbow Surgeons (ASES) functional outcome scores were collected preoperatively through 1 year postoperatively. The following factors received the greatest frequency of high-importance scores: limited shoulder function (80.6%), surgeon recommendation (79.2%), and daily chronic pain (76.4%). Among surgeons, patient activity (83.3%) and risk of tear progression (73.6%) received the greatest frequency of high-importance scores. Patients had worse preoperative ASES scores when they reported the following factors as highly important: limited shoulder function, daily chronic pain, concern for tear enlargement, inability to sleep, and failure of conservative management (P<.004). Female gender, corticosteroid injection, and opioid use were also associated with worse preoperative shoulder function (P<.01). Workers' compensation claims, preoperative physical therapy, and multiple corticosteroid injections were associated with worse postoperative ASES scores (P<.05). Limitations in shoulder function and surgeon recommendation were the most common factors influencing patients to undergo RCR. Multiple factors were associated with worse shoulder function. Surgeons should be cognizant of patient decision-making factors and their relationship with shoulder function. [Orthopedics. 2020; 43(2): 85-90.].


Subject(s)
Clinical Decision-Making , Rotator Cuff Injuries/surgery , Arthroscopy , Chronic Pain/etiology , Disease Progression , Female , Humans , Male , Middle Aged , Prospective Studies , Range of Motion, Articular/physiology , Rotator Cuff Injuries/physiopathology , Shoulder Joint/physiopathology , Shoulder Joint/surgery , Sleep Wake Disorders/etiology
6.
J Bone Joint Surg Am ; 101(18): 1628-1635, 2019 Sep 18.
Article in English | MEDLINE | ID: mdl-31567799

ABSTRACT

BACKGROUND: Depression is a potential risk factor for poor postoperative outcomes. This study aimed to identify the prevalence of clinical depression symptoms before and after shoulder stabilization, as well as the relationship between depression and functional outcomes. METHODS: Patients undergoing arthroscopic primary glenohumeral stabilization for recurrent instability were eligible for enrollment. Participants completed the Quick Inventory of Depressive Symptomatology-Self Report (QIDS-SR) and the Western Ontario Shoulder Instability Index (WOSI) questionnaire preoperatively and at 6 weeks, 3 months, 6 months, and 1 year postoperatively. Patients with a preoperative QIDS-SR score of ≥6 were assigned to the clinical depression group. RESULTS: Seventy-six patients were enrolled and were prospectively followed during this study. Thirty-nine patients were stratified into the clinical depression group. Preoperatively, the clinical depression cohort had worse WOSI scores than the cohort without clinical depression (mean difference, 8.3% [95% confidence interval (CI), 0.5% to 16.1%]; p = 0.04). Both the clinical depression cohort and the cohort without clinical depression displayed an improvement in WOSI scores at 1 year postoperatively (p < 0.01 for both cohorts). Both the clinical depression cohort and the cohort without clinical depression displayed an improvement in QIDS-SR scores at 1 year postoperatively (p < 0.01 for both cohorts). At 1 year postoperatively, the clinical depression cohort continued to have worse WOSI scores than the cohort without clinical depression (mean difference, 12.2% [95% CI, 5.9% to 18.5%]; p < 0.01) and worse QIDS-SR scores; the median QIDS-SR score was 5.0 points (interquartile range [IQR], 2.0 to 8.0 points) for the clinical depression group and 0.0 points (IQR, 0.0 to 3.0 points) for the group without clinical depression (p < 0.01). The postoperative prevalence of clinical depression (24%) was lower than the preoperative prevalence (51%) (p < 0.01). Increasing patient age was associated with preoperative depression symptoms (odds ratio, 3.1; p = 0.03). CONCLUSIONS: Fifty-one percent of patients with shoulder instability reported depression symptoms before the surgical procedure. Surgical intervention improved shoulder function and depression symptoms over time; however, the clinical depression cohort had worse postoperative shoulder and depression outcomes. LEVEL OF EVIDENCE: Prognostic Level II. See Instructions for Authors for a complete description of levels of evidence.


Subject(s)
Arthroscopy , Depression/etiology , Joint Instability/surgery , Postoperative Complications , Shoulder Joint/surgery , Adult , Arthroscopy/psychology , Depression/diagnosis , Depression/epidemiology , Female , Follow-Up Studies , Health Status Indicators , Humans , Joint Instability/psychology , Male , Middle Aged , Postoperative Complications/diagnosis , Postoperative Complications/epidemiology , Preoperative Period , Prevalence , Prospective Studies , Psychiatric Status Rating Scales , Self Report , Treatment Outcome
7.
Am J Orthop (Belle Mead NJ) ; 45(7): E415-E420, 2016.
Article in English | MEDLINE | ID: mdl-28005116

ABSTRACT

The incidence of arthroscopic rotator cuff repair (RCR) continues to rise. Given the changing healthcare climate, it is becoming increasingly important to critically evaluate current practice and attempt to make modifications that decrease costs without compromising patient outcomes. We conducted a study of the costs associated with arthroscopic anchorless (transosseous [TO]) RCR and those associated with the more commonly performed anchor-based TO-equivalent (TOE) method to determine whether there are any cost savings with the TO-RCR method. Twenty-one consecutive patients who underwent arthroscopic TO-RCR were prospectively enrolled in the study and matched on tear size and concomitant procedures with patients who underwent arthroscopic TOE-RCR. The groups' implant costs and operative times were obtained and compared. Outcome measures, including scores on the VAS (visual analog scale) for pain, the SANE (Single Assessment Numeric Evaluation), and the SST (Simple Shoulder Test), recorded at 3, 6, and >12 months after surgery, were compared between the TO and TOE groups. Mean implant cost was $946.91 less for the TO group than the TOE group-a significant difference. Mean operative time was not significantly different between the TO and TOE groups. There was significant improvement on all outcomes measures (VAS, SANE, SST) at >12 months, and this improvement was not significantly different between the groups. Arthroscopic TO-RCR provides significant cost savings over TOE-RCR with no significant difference in operative time or short-term outcomes.


Subject(s)
Arthroscopy/economics , Health Care Costs , Operative Time , Rotator Cuff/surgery , Adult , Aged , Arthroscopy/methods , Female , Humans , Male , Middle Aged , Shoulder/surgery , Treatment Outcome
8.
Am J Orthop (Belle Mead NJ) ; 44(11): 505-9, 2015 Nov.
Article in English | MEDLINE | ID: mdl-26566550

ABSTRACT

The American Academy of Orthopaedic Surgeons (AAOS) and other orthopedic societies require authors to disclose conflicts of interest (COIs). We conducted a study to evaluate how a hypothetical research team's reported COI would influence the perceived value of its data. Using a hypothetical prospective study, we asked orthopedic surgeons and nonoperative sports medicine specialists to rate the value of the data, given different study designs, statistical significance, and research institutions (academic vs private). The fictional research team disclosed the project was funded by a pharmaceutical company and all team members received consulting compensation. Eighty percent of 522 respondents thought COI disclosure is important in the interpretation of study results, 41% reported always using this information when interpreting data, and 24% reported that a case series with significant positive results at an academic center was likely trustworthy (this percentage decreased to 5% when the study was set in a community hospital). When no significant difference was found in results, 42% thought the study was trustworthy. When the study design yielded level I evidence (randomized controlled trial) at an academic center, 57% thought the study was trustworthy (when the study was set in a community hospital, this percentage decreased to 39%). When the results of the design showed no difference among groups, the majority of respondents (62%) thought the study was trustworthy. Although the majority of respondents thought disclosure is important, fewer than half reportedly used this information when interpreting study results. Randomized controlled trial status improved the perceived reliability of the data over a case series but was not as important as reporting "negative" results.


Subject(s)
Conflict of Interest , Disclosure/ethics , Sports Medicine/ethics , Humans , Judgment , Reproducibility of Results
9.
Orthop J Sports Med ; 3(8): 2325967115601021, 2015 Aug.
Article in English | MEDLINE | ID: mdl-26535394

ABSTRACT

BACKGROUND: Complete triceps tendon ruptures are relatively rare in the general population but slightly more prevalent in professional football. One prior study found 11 complete ruptures over a 6-season period. HYPOTHESIS: Triceps ruptures occur more commonly in football linemen due to forced elbow flexion during an eccentric contraction and may occur more commonly with the increasing size and speed of professional players. Surgical repair allows full return to sports, but with a lengthy recovery time. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: A search of the National Football League Injury Surveillance System (NFLISS) found a total of 37 triceps tendon ruptures requiring surgical repair from the years 2000 to 2009. Data were obtained for setting of injury, player position, activity causing injury, play type, time of game when injury occurred, height, weight, body mass index (BMI), and number of days lost from football. RESULTS: There were 37 players requiring surgical repair for triceps tendon ruptures over the 10-season period. The average height, weight, and BMI of the players were 75 inches, 292 pounds, and 36.5 kg/m(2), respectively. The majority of players were linemen (86%): 16 defensive, 15 offensive, and 1 tight end. The injury took place while blocking or being blocked in 29 players (78%) and while tackling or being tackled in 5 players (14%). Players missed an average of 165 days (range, 49-318 days) from football as a result of their injury and surgery. CONCLUSION: Triceps tendon tears requiring surgical repair are more common in professional football players than in the general population and are occurring more commonly than previously reported. Surgical repair allows return to play. CLINICAL RELEVANCE: Our study identifies the rate of triceps tendon tears requiring repair in the NFL according to position, identifying which players may be most at risk for this injury.

10.
J Am Acad Orthop Surg ; 23(8): 492-500, 2015 Aug.
Article in English | MEDLINE | ID: mdl-26116851

ABSTRACT

Upper extremity pain can result from many overlapping etiologies. These can be categorized into anatomic regions and specific organ systems. Anatomically, pain etiologies are classified into four major groups: neurologic, musculoskeletal, vascular, and other (eg, tumor, infection). Knowledge of the characteristic clinical presentation and physical examination findings of each group can help distinguish the source of the patient's complaints quickly so that an accurate clinical diagnosis can facilitate appropriate diagnostic measures and treatment. A focus on the neurologic causes of upper extremity pain (ie, cervical spine pathology, peripheral nerve compression, neuropathy) and musculoskeletal causes of shoulder and elbow pain (eg, adhesive capsulitis, calcific tendinitis, biceps tendinitis, synovitis) and the distinguishing characteristics (eg, periscapular pain, two-point discrimination, signal intensity on T2-weighted MRI) helps determine the appropriate diagnosis.


Subject(s)
Arthralgia/diagnosis , Musculoskeletal Pain/diagnosis , Physical Examination , Upper Extremity , Arthralgia/etiology , Diagnosis, Differential , Humans , Musculoskeletal Pain/etiology
11.
Phys Sportsmed ; 41(2): 26-33, 2013 May.
Article in English | MEDLINE | ID: mdl-23703514

ABSTRACT

PURPOSE: Disruption of the medial patellofemoral ligament (MPFL) is now considered the essential lesion of recurrent lateral patellar dislocation in patients with normal lower extremity alignment. Reconstruction of the MPFL is a technique gaining significant success in the treatment of patients with this disabling condition. HYPOTHESIS: Reconstruction of the MPFL in patients with chronic patellar instability and normal lower extremity alignment will improve knee function and symptoms, with a high percentage of patients achieving good to excellent results at early follow-up. STUDY DESIGN: Case series; Level of evidence; 4. METHODS: A consecutive series of patients with lateral patellofemoral instability who underwent MPFL reconstruction were reviewed. Reconstruction was performed with either soft tissue allograft (23 patients) or hamstring tendon autograft (12 patients). Outcomes were determined by patient scores from the Kujala Anterior Knee Pain Scale, recurrence of patellar instability, and patient function at a minimum of 12 months of postoperative follow-up. RESULTS: Thirty-five patients were followed for a mean of 21.0 months (range, 12-45 months) after surgery. The Kujala subjective knee score improved significantly from 49.0 preoperatively to 89.5 postoperatively (P < 0.001). No statistical significance was found between postoperative Kujala scores and graft type, or time from initial injury to surgical reconstruction. A firm endpoint to lateral translation of the patella, and no feelings of apprehension were noted in all patients at most recent follow-up. The majority of patients noted that they were more active than before reconstructive surgery, with 86% participating in "strenuous" to "very strenuous" activities at the time of follow-up. No recurrent dislocations were reported. CONCLUSION: Reconstruction of the MPFL provides excellent stability and functional outcomes for patients with recurrent patellar instability.


Subject(s)
Athletic Injuries/surgery , Joint Instability/surgery , Patellar Dislocation/surgery , Patellar Ligament/surgery , Plastic Surgery Procedures/methods , Adolescent , Adult , Arthroscopy , Athletic Injuries/diagnostic imaging , Chronic Disease , Female , Humans , Internal Fixators , Joint Instability/diagnostic imaging , Magnetic Resonance Imaging , Male , Patellar Dislocation/diagnostic imaging , Patellar Ligament/diagnostic imaging , Radiography , Range of Motion, Articular , Retrospective Studies , Treatment Outcome
12.
Orthopedics ; 35(5): e703-8, 2012 May.
Article in English | MEDLINE | ID: mdl-22588413

ABSTRACT

Proximal humerus fractures are the third most common fracture in elderly patients. Hemiarthroplasty has been the treatment of choice in patients with bone quality and fracture patterns not amenable to open reduction and internal fixation. Reverse total shoulder arthroplasty is a newer option that appears to be less dependent on tuberosity healing than hemiarthroplasty. The authors hypothesized that reverse total shoulder arthroplasty provides improved functional outcomes compared with hemiarthroplasty for fractures in elderly patients.A retrospective review was performed of all patients treated with arthroplasty for acute proximal humerus fractures in an orthopedic practice using a Current Procedural Terminology code search, patient charts, and radiographs. Validated outcome scores were used to assess satisfaction, function, and general well-being. Twenty-three patients were treated for acute proximal humerus fractures (11 reverse total shoulder arthroplasties and 12 hemiarthroplasties). Three patients were lost to follow-up, and 6 patients were deceased. Mean follow-up was 3.6 years (range, 1.3-8 years). Reverse total shoulder arthroplasty outperformed hemiarthroplasty with regard to forward flexion, American Shoulder and Elbow Society score, University of Pennsylvania shoulder score, and Single Assessment Numerical Evaluation score.Reverse total shoulder arthroplasty is a reliable option for acute, proximal humerus fractures that are not amenable to closed treatment or reconstruction in elderly patients. Improved functional outcomes when compared with hemiarthroplasty must be balanced against the increased cost and limited life expectancy of patients with this injury.


Subject(s)
Arthroplasty, Replacement/methods , Shoulder Fractures/surgery , Shoulder Joint/surgery , Aged , Aged, 80 and over , Arthroplasty, Replacement/adverse effects , Arthroplasty, Replacement/rehabilitation , Fracture Healing , Health Status , Humans , Longevity , Middle Aged , Outcome Assessment, Health Care , Patient Satisfaction , Range of Motion, Articular , Recovery of Function , Retrospective Studies , Shoulder Fractures/physiopathology , Shoulder Fractures/rehabilitation , Shoulder Joint/physiopathology
13.
Phys Sportsmed ; 40(3): 83-6, 2012 Sep.
Article in English | MEDLINE | ID: mdl-23528625

ABSTRACT

Working from a prior investigation, we sought to determine the validity of the claim: "It's okay for 12-year-old pitchers to throw curveballs; it's the pitch count that matters." Our previous expert opinion survey demonstrated that this statement was most probably false. The purpose of this report was to investigate the validity of this statement, and to determine if our sports medicine experts "got it right." Using the most current sports medicine literature, this statement was critically examined so that an evidence-based opinion could be given and compared with the results of our prior study.


Subject(s)
Athletic Injuries/prevention & control , Baseball/injuries , Cumulative Trauma Disorders/prevention & control , Evidence-Based Medicine/methods , Guidelines as Topic , Orthopedics , Societies, Medical , Sports Medicine/methods , Sports , Child , Humans
14.
J Bone Joint Surg Am ; 85(11): 2199-204, 2003 Nov.
Article in English | MEDLINE | ID: mdl-14630853

ABSTRACT

BACKGROUND: Halo ring and vest application in children requires torque wrenches capable of delivering a spectrum of torque values ranging from 0.11 to 0.68 N-m (1 to 6 in-lb). Published evaluations of torque wrenches commonly used in adults have shown that the measured torque values were within 10% of the target torque in only 64% of trials. The objective of the present study was to evaluate the accuracy, reliability, and interobserver variability of halo wrenches capable of applying the lower torque levels commonly used in children. METHODS: Torque wrenches from four distributors (Bremer, Jerome Medical, Mountz, and PMT) were tested with use of a calibrated torque-meter. Five wrenches of each type were tested by a single observer, with fifty trials performed at six different torque settings (0.11, 0.23, 0.34, 0.45, 0.57, and 0.68 N-m). One wrench of each type was then tested by two additional observers at a torque setting of 0.34 N-m, with each observer performing fifty trials per wrench. RESULTS: The measured torque value was within 10% of the target value in 69.2% of the 6400 trials, including 50.7% of the trials performed with the PMT wrench, 51.8% of those performed with the Bremer wrench, 84.5% of those performed with the Mountz wrench, and 90% of those performed with the Jerome wrench. Significant variability (p < 0.05) was found between at least two, and as many as five, wrenches of the same variety at each of three torque settings used for comparison (0.23, 0.45, and 0.68 N-m). Significant interobserver variability (p < 0.05) was found between at least two observers during testing of the Jerome and Mountz wrenches, but no significant differences were shown between observers during testing of the PMT and Bremer wrenches. CONCLUSIONS: The Jerome and Mountz wrenches are more accurate and reliable at low torque settings than the PMT and Bremer wrenches are. Variability among different wrenches from the same manufacturer may be seen with any of the wrenches studied.


Subject(s)
Materials Testing/methods , Orthopedic Procedures/instrumentation , Surgical Instruments/standards , Torque , Child , Humans , Materials Testing/statistics & numerical data , Observer Variation , Reproducibility of Results , Stress, Mechanical
SELECTION OF CITATIONS
SEARCH DETAIL
...