Calcaneogenesis.

We report a case in which Ilizarov distraction osteogenesis was used to lengthen the portion of calcaneum that remained after a radical debridement for osteomyelitis. The patient was able to walk normally in unmodified shoes at the end of his treatment.

A three-dimensional study of calcaneonavicular tarsal coalitions.

The authors studied 37 presumed calcaneonavicular tarsal coalitions from the Hamann-Todd Osteological Collection at the Cleveland Museum of Natural History. The anatomy of the coalitions and the associated subtalar and transverse tarsal joints was quite variable. The coalitions in 8 specimens completely spared the anterior facet of the calcaneus and in 7 specimens it was partially replaced by the navicular portion of the coalition, whereas in 22 specimens the anterior calcaneal facet was completely replaced by the navicular portion of the coalition. The authors suggest that the pathoanatomy of calcaneonavicular coalitions is not uniform and may involve the subtalar and transverse tarsal joints. This may have clinical relevance and contribute to the unsatisfactory results in feet undergoing coalition resection and soft tissue interposition.

Tibial shaft fractures with an associated infrapopliteal arterial injury: a survey of vascular surgeons opinions on the need for vascular repair.

OBJECTIVE: To determine current practice for tibial arterial revascularization in trauma patients with tibial shaft fractures associated with infrapopliteal arterial injuries. DESIGN: Nationwide survey of board-certified vascular surgeons, proportionally stratified by geographic region. METHODS: We surveyed a random sample (probability sample stratified by geographic region) of 200 members of the 729 active members of the Society for Clinical Vascular Surgery. We designed a twenty-one-item questionnaire to elicit opinions on the need for vascular repair for a variety of clinical scenarios. RESULTS: Completed questionnaires were returned by fifty-one vascular surgeons. For the eight isolated and combined infra-popliteal arterial injuries we studied, agreement between vascular surgeons as to the need for arterial repair was better for scenarios with clinical evidence of limb ischemia than for those without clinical evidence of limb ischemia. For injuries with clinical evidence of limb ischemia, excellent agreement (90 percent or more of respondents agreeing) was seen for five of the eight injuries, good agreement (80 to 89 percent of respondents agreeing) was seen for two injuries, and poor agreement (less than 70 percent of respondents agreeing) was seen for one injury. For injuries without clinical evidence of limb ischemia, excellent agreement was seen for one injury, good agreement was seen for two injuries, fair agreement (70 to 79 percent of respondents agreeing) was seen for three injuries, and poor agreement was seen for two injuries. CONCLUSIONS: A review of the literature and results of our study suggest that no standardized protocol exists in the current practice of revascularization of infrapopliteal arterial injuries with concomitant tibial shaft fractures; disagreement among vascular surgeons was particularly common for cases where a vessel was known to be injured but there was no clinical evidence of limb ischemia. Our study highlights the need for randomized prospective studies so that standardized protocols can be developed for these serious injuries. Because of the relatively small numbers of this type of injury and the wide variety of injury patterns seen, a study such as this would best be designed as a multi-center study.

Quality and outcome determination in health care and orthopaedics: evolution and current structure.

Quality health care has many definitions. Among those definitions is "care that consistently contributes to the improvement or maintenance of the quality and/or duration of life." The current evolution in health care has been fueled by three necessities frequently demanded by payers and employers: improvement in access, lowering of cost, and definition and quantification of the quality of care. This evolution has been facilitated by the so-called industrialization of medicine. This concept includes the adoption of industrial economic principles and techniques that facilitate the measurement of processes and outcomes. Quality health care is currently recognized as health care that is characterized by three elements: the use of practice guidelines or standards, the implementation of continuous quality improvement techniques, and the use of outcome determination and management. Practice guidelines demand the adoption of evidence-based principles in evaluation and care, as well as minimization of variations in evaluation and care. Continuous quality improvement seeks to determine why variations in processes of care occur and then to minimize those variations. Outcomes may be measured in terms of both very objective and very subjective variables and also on the basis of cost-efficiency. Most tools currently used to quantify outcomes, especially in orthopaedics, involve measurements of general health and of specific body part or organ system function. This evolution in health care is producing significant alterations in methods of traditional health-care delivery. The accumulating evidence indicates that these changes, although frequently unpopular, are improving the quality of health care.

Orthopedic medical malpractice: an attorney's perspective.

Orthopedic surgeons are trained to manage problems involving the musculoskeletal system. It would be helpful to identify certain procedures, anatomic areas, or issues related to the physician-patient relationship that could potentially lead to a malpractice lawsuit. Once the problems are identified, steps toward continuing education and physician awareness could be initiated. In this study, we performed a randomized nationwide survey of medical malpractice attorneys to evoke their opinion on these issues. We found that the lumbar spine was the most common anatomic area involved in orthopedic medical malpractice cases, and a physician appearing rushed and uninterested is most likely to be the subject of a lawsuit where a poor physician-patient relationship was a contributing factor. Educational and professional programs are needed to increase the awareness and knowledge of orthopedic malpractice risks, and also to identify potentially preventable problems leading to malpractice litigation.

Development of a method to analyze orthopaedic practice expenses.

The purpose of the current investigation was to present a standard method by which an orthopaedic practice can analyze its practice expenses. To accomplish this, a five-step process was developed to analyze practice expenses using a modified version of activity-based costing. In this method, general ledger expenses were assigned to 17 activities that encompass all the tasks and processes typically performed in an orthopaedic practice. These 17 activities were identified in a practice expense study conducted for the American Academy of Orthopaedic Surgeons. To calculate the cost of each activity, financial data were used from a group of 19 orthopaedic surgeons in Houston, Texas. The activities that consumed the largest portion of the employee work force (person hours) were service patients in office (25.0% of all person hours), maintain medical records (13.6% of all person hours), and resolve collection disputes and rebill charges (12.3% of all person hours). The activities that comprised the largest portion of the total expenses were maintain facility (21.4%), service patients in office (16.0%), and sustain business by managing and coordinating practice (13.8%). The five-step process of analyzing practice expenses was relatively easy to perform and it may be used reliably by most orthopaedic practices.

Confidence of graduating family practice residents in their management of musculoskeletal conditions.

A study was undertaken to determine the confidence of graduating family practice residents in the management of musculoskeletal conditions and to determine the level of exposure of graduating family practice residents to fracture care. A 2-page questionnaire consisting of 50 items was sent to 680 graduating family practice residents at 100 randomly selected residency training programs throughout the United States. Family practice residents were questioned about their fracture care experience, including the number of fractures diagnosed, the number of fractures reduced, the number of fractures treated to healing, and the number of casts and splints applied. Residents were also asked about their training experience on an orthopedic surgery service. Residents were asked to rate their confidence on a scale of 1 (least confident) to 10 (most confident) in the physical examination, radiographic evaluation, diagnosis, and treatment of a variety of musculoskeletal conditions, including physical examination of the knee, lower back, ankle, wrist, cervical spine, shoulder, hand, and foot; radiographic evaluation of the lumbosacral spine, traumatic cervical spine, hand injuries, adult shoulder trauma, osteomyelitis, and pediatric elbow injuries; diagnosis of carpal tunnel syndrome, herniated lumbar disc, knee instability, rotator cuff tear, and shoulder instability; and treatment of ankle sprain, tennis elbow, olecranon bursitis, distal radius fracture (Colles), bimalleolar ankle fracture, hip avascular necrosis, knee dislocation, and pediatric elbow fracture. These results were compared with graduating family practice residents' confidence in the physical examination, radiographic evaluation, diagnosis, and treatment of a variety of nonmusculoskeletal conditions. Completed questionnaires were returned by 351 graduating family practice residents. The overall fracture care experience of graduating family practice residents was minimal. Seventy-nine percent of graduating residents had reduced 5 or fewer fractures during their entire residency training program. Experience with cast and splint application was also relatively limited. Graduating family practice residents reported an average of 5.1 weeks (range, 0-10 wk) of training experience on an orthopedic surgery service during their residency. Graduating family practice residents were significantly more confident in the physical examination, radiographic evaluation, diagnosis, and treatment of nonmusculoskeletal conditions than in those of musculoskeletal conditions (P = .0001). Family practice residents who had rotated on an orthopedic service for 8 weeks or more during their training reported significantly higher confidence for all 4 skills-physical examination (P = .003), radiographic evaluation (P = .003), diagnosis (P = .007), and treatment (P = .009). In conclusion, family practice residents show relatively low confidence in the management of musculoskeletal conditions and receive minimal exposure to all aspects of fracture care. Confidence can be improved with greater exposure to the musculoskeletal sciences--such as a rotation of 8 weeks or more on an orthopedic surgery service.

Orthopedic patients' satisfaction with their health care plan: a study performed by the Research and Education Committee of the Texas Orthopaedic Association.

To determine the satisfaction of orthopedic patients in regards to their health care plan, a four-page questionnaire was designed, pilot tested, and sent to 200 orthopedic surgeons randomly selected from members of the American Academy of Orthopaedic Surgeons in Texas. Fifty-seven orthopedic surgeons were not eligible to participate; our eligible cohort was 143 orthopedic surgeons. These surgeons were asked to administer the questionnaire to 20 randomly selected patients. Fifty-six of the 143 orthopedic surgeons participated, and surveys were completed by 939 patients. Patients were asked to rate their satisfaction with their health insurance, access to primary care physicians, and access to orthopedic surgeons. Although satisfaction was generally high, the patients with a gate-keeper (no direct access to specialists) were significantly less satisfied with their access to primary care physicians and orthopedic surgeons than those without a gatekeeper.

Technology evolution: the technology spectrum and its application to orthopedic technologies.

The evolution of clinical technologies presents potential adopters with considerations in planning for clinical program development that include the stage and the rate of a technology's evolution. This paper presents a conceptual framework for these considerations and applies the framework to orthopedic technologies. Eight orthopedic surgeons were asked to assess 14 orthopedic technologies and position each of them along a spectrum of research, clinical, and adopted technologies. The distribution of responses for each technology-year combination is presented, and estimates of central tendency, dispersion, and variances provide measures of the change in the distribution of responses over time for each technology and the change in the degree of rater consensus over time for each technology. While orthopedic trauma was chosen to illustrate the technology spectrum model, the model and assessment methodology is applicable to other medical specialties as well. Adoption of this framework in a hospital setting should enable more systematic and effective clinical program development.

Pseudo-dislocation of the sternoclavicular joint.

Fractures of the medial third of the clavicle are the rarest of all clavicle fractures. We present two cases of medial clavicle fracture nonunions that were initially thought to be chronic anterior sternoclavicular dislocations and describe the entity of pseudo-dislocation of the sternoclavicular joint. Computed tomography should be performed on all patients with suspected or established injuries of the sternoclavicular region to ensure differentiation between fracture and dislocation.

Early changes in nutrient artery blood flow following tibial nailing with and without reaming: a preliminary study.

OBJECTIVE: To quantify the changes in nutrient artery blood flow following reamed and unreamed nailing of intact canine tibias. DESIGN: In vivo animal study. INTERVENTION: Eighteen dogs underwent nutrient artery blood flow measurements over a fourteen-day period. The intervention groups consisted of controls (Group I), nailing without reaming (Group II), and nailing with reaming (Group III). MAIN OUTCOME MEASUREMENTS: Nutrient artery blood flow was measured through implantable ultrasonic blood flow probes placed around the nutrient artery of the tibia. RESULTS: Nutrient artery blood flow averaged 1.94 milliliters per minute over the fourteen-day period in Group I (no reaming or nailing performed). Nutrient artery blood flow following nailing without reaming (Group II) decreased to 44 percent of baseline values immediately after the procedure. By postoperative day 1, flow had decreased to 23 percent of baseline; over the fourteen-day period, nutrient artery blood flow recovered toward baseline values. Immediately following nailing with reaming (Group III), nutrient artery blood flow measured zero milliliters per minute. Over the fourteen-day period, nutrient artery blood flow in this group averaged 39 percent of the baseline level (range 19 to 58 percent). Whereas nutrient artery blood flow recovered toward baseline values (99 percent of baseline) by fourteen days in Group II, nutrient artery blood flow measured only 26 percent of the baseline level on postoperative day fourteen in Group III. CONCLUSIONS: The preliminary data suggest that nailing with reaming provides a double insult to the nutrient artery distribution.

An analysis of sports knee evaluation instruments.

This study examined four commonly used sports knee evaluation instruments to establish normative data. A total of 91 volunteers who had not sought treatment for knee pain or any other knee complaint at any time in the past underwent a detailed medical history and examination of both of their knees. Three numerical systems (Feagin and Blake Knee Score, Lysholm Knee Score, and the Hospital for Special Surgery Knee Disability Assessment) and one nonnumerical system (the International Knee Documentation Committee Quick Knee Profile) were evaluated. A significant difference in the proportion of knees with excellent/normal ratings was seen among the four evaluation systems (P<.0001): Hospital for Special Surgery Knee Disability Assessment, 99.5%; Feagin and Blake Knee Score, 84.6%; Lysholm Knee Score, 84.1%; and the International Knee Documentation Committee Quick Knee Profile, 50.5%. Results showed that three objective component scores for the International Knee Documentation Quick Knee Profile were significantly lower than all other component scores (P<.05). These components included: overall ligament examination, Lachman, and total AP translation. These data may be useful as a baseline by which investigators studying patients following knee reconstructive procedures have a basis for comparison of their results.

Use of Ilizarov external fixation for a periprosthetic supracondylar femur fracture.

Supracondylar femur fractures above a total knee replacement are rare injuries that may be challenging to treat. We present a case of an elderly woman whose supracondylar femur fracture was not deemed amenable to conventional treatment. This patient underwent fixation of her femur fracture above a total knee replacement using an Ilizarov external fixator. The fixator was removed at 10 weeks, at which time the fracture was solidly healed. At the most recent follow-up, the patient is 19 months postinjury. She is fully weight bearing without walking aids and has a knee range of motion of 0 degree to 110 degrees.

Orthopedic residents' perceptions of the content and adequacy of their residency training.

The content and adequacy of orthopedic surgery residency training can be evaluated by several means. The Accreditation Council for Graduate Medical Education and the Residency Review Committee set standards with which residency programs must comply in order to be accredited. Residents' perceptions of the content and adequacy of their training is another means of evaluating orthopedic residency training. A questionnaire was sent to all graduating orthopedic residents in the United States, Canada, and Puerto Rico. The questionnaire provided program and individual resident demographics, as well as the residents' rating of specific areas of residency training on a 5-point scale (1=superior, 2=above average, 3=average, 4=below average, 5=inadequate). Completed surveys were received from 454 of the 698 graduating orthopedic surgery residents listed by the American Academy of Orthopaedic Surgeons; the response rate was therefore 65.0%. Our respondents were representative of the entire population in terms of geographic and sex distribution. Respondents rated their general orthopedic training at 1.9. The areas of training that had the best ratings included trauma/fracture (1.8), adult reconstruction (1.9), and pediatrics (1.9). The worst rating was reported for training in foot and ankle (2.7). Factors related to better ratings for general orthopedic training included male sex of residents, programs with more full-time faculty, programs with more hours of weekly teaching conferences, programs with one or more faculty present at all teaching conferences and programs in which residents first operate independently at or before postgraduate year 4. Sixty-six percent of all respondents were planning to hold a fellowship immediately after graduation. The most common fellowships taken included sports medicine (20.5% of all respondents), hand (12.1%), and spine (9.5%). Younger graduating residents, those from larger programs (more residents per year), and those from the Mideast (U.S.), and New England regions were most likely to enter a fellowship after graduation.

The results of total knee arthroplasty in workers' compensation patients.

Total knee arthroplasty was evaluated in 10 patients with post-traumatic osteoarthrosis secondary to work-related knee injuries (age- and sex-matched with 10 controls who had total knee arthroplasties for nonwork-related osteoarthrosis) to determine if Workers' Compensation status influenced treatment outcome. Using the Hospital for Special Surgery Knee Rating System (maximum possible score: 100), most recent follow-up scores averaged 64.1 for Workers' Compensation patients and 91.9 for controls. Subjective indices (pain, function) were significantly different between groups (p < 0.05), but objective indices (range of motion, strength, deformity, instability) were not. No significant differences were noted between groups on either immediate postoperative or most recent follow-up radiographs (which were assessed for alignment and radiolucencies at implant surfaces, respectively). Suboptimal outcomes can be anticipated in total knee arthroplasties performed on Workers' Compensation patients, particularly in cases where claims have not been settled at the time of surgery.

Use of an osteoinductive biomaterial (rhOP-1) in healing large segmental bone defects.

OBJECTIVE: To assess the radiographic, histologic, and mechanical characteristics of new bone formation in large segmental bone defects treated with a new osteoconductive material, recombinant human osteogenic protein-1 (rhOP-1). DESIGN: In vivo animal study. INTERVENTION: Sixteen dogs (thirty-two limbs) with an ulna segmental defect (2.5 centimeters) were randomized to three treatment groups: rhOP-1, collagen alone, and no implant. MAIN OUTCOME MEASUREMENTS: Radiographic evidence of defect healing, mechanical testing (torsional strength) as compared with thirty-one control intact dog ulnas, and histologic analysis. RESULTS: At twelve weeks, complete radiographic healing was observed in twenty-five of twenty-eight defects (89 percent) treated with rhOP-1. The mechanical strength of the rhOP-1-treated defects at twelve weeks was 65 percent of that of intact ulnas. Histologic analysis revealed that defects treated with rhOP-1 were bridged with lamellar and woven bone that was in continuity with the host bone. CONCLUSIONS: The results indicate that osteoinductive materials, which have the ability to quickly fill and heal large defects, may have advantages over osteoconductive materials, which are typically used to fill smaller non-load-bearing bone voids.

Self-assessment of general health status in patients with five common shoulder conditions.

The SF-36 Health Survey is a patient self-administered general health status evaluation designed to measure the impact of disease on an individual's perception of his or her health. Five hundred forty-four patients with five common shoulder conditions (anterior glenohumeral instability (149 patients), complete reparable rotator cuff tear (111 patients), adhesive capsulitis (100 patients), glenohumeral osteoarthritis (67 patients), and impingement (117 patients)) completed the SF-36 Health Survey before undergoing treatment. When compared with U.S. general population norms, the patients with each of these shoulder conditions had statistically significant decreases in their health for Physical Functioning, Role-Physical, Bodily Pain, Social Functioning, Role-Emotional, and the Physical Component Summary as measured by the SF-36 Health Survey. Comparison with published data demonstrated that these shoulder conditions rank in severity (in terms of affecting a patient's perception of his or her general health) with five major medical conditions (hypertension, congestive heart failure, acute myocardial infarction, diabetes mellitus, and clinical depression). The data presented in this study should serve as a baseline to document the impact of shoulder musculoskeletal conditions and possibly to allow comparison among various methods of operative and nonoperative treatment.

Patient self-assessment of tibial plateau fractures in 40 older adults.

This retrospective study examined the outcome of 40 patients 50 or more years of age treated between September 1988 and September 1993 for tibial plateau fractures. Our analysis was based on a review of the medical records of all patients as well a patient self-assessment questionnaire. The 22 women and 18 men studied had a mean age of 60 (range, 50 to 76 years) at the time of injury. A satisfactory overall outcome (based on patients' self-assessment) was observed in only 14 (35%) of the 40 cases. Unsatisfactory outcomes were observed in 23 (72%) of 32 cases treated operatively and 3 (38%) of 8 cases treated nonoperatively. No significant difference in outcome was observed between the 27 patients with AO type B fractures and the 13 patients with AO type C fractures. Similarly, no significant difference in outcome was observed in patients with fractures involving the lateral plateau only, those with fractures involving the medial plateau only, and those with bicondylar fractures. There was no significant relationship between the adequacy of fracture reduction and overall clinical outcome, although a trend of more favorable outcomes was noted in patients with excellent or satisfactory reductions. The results suggest that patients of 50 or more years of age have a high rate of unsatisfactory clinical outcomes regardless of how their tibial plateau fractures are treated.

A comparison of patients with different types of syndactyly.

We performed a retrospective review of finger syndactyly releases at Shriners Hospital for Children, Houston Unit, between January 1983 and January 1993. This study was performed in an attempt to compare the long-term postoperative function in patients after release of syndactyly resulting from Poland's syndrome with that in patients with idiopathic forms of syndactyly. Only patients with one involved hand were included in this study. The contralateral hand was used as a control. Twenty-seven patients with only one hand involved underwent syndactyly release during this period. Of these, 13 patients who underwent a total of 30 syndactyly releases were available for evaluation. For each patient, the type of syndactyly was determined. Each patient was subjected to a detailed physical examination and participated in occupational-therapy modalities. We noted statistically significant differences in function between operated-on and control hands in the Poland's group, whereas operated-on hands affected with idiopathic forms of syndactyly did not demonstrate significantly different function compared with contralateral controls. These data suggest that functional deficits in hands affected by Poland's syndrome are attributable to more than the syndactyly alone. Hands affected by idiopathic forms of syndactyly are likely to have little postoperative functional deficit.

Early effectiveness of arthroscopic repair for full-thickness tears of the rotator cuff: an outcome analysis.

Fifty consecutive patients completed standardized questionnaires regarding general health status as well as function of the shoulder before and an average of thirteen months after arthroscopic repair of a full-thickness tear of the rotator cuff. Comparison of the preoperative and postoperative responses to the questions demonstrated highly significant improvements in the patient's assessment both of general health and of function of the shoulder. The Short Form-36 (SF-36) General Health Survey revealed significant improvements in the most recent follow-up scores compared with the preoperative scores with regard to physical functioning (p = 0.0001), role-physical (p = 0.0001), bodily pain (p = 0.0001), vitality (p = 0.0001), social functioning (p = 0.0001), role-emotional (p = 0.006), mental health (p = 0.0213), and physical component summary (p = 0.0001). The University of California at Los Angeles (UCLA) Shoulder Score, the Constant Shoulder Score, and the American Shoulder and Elbow Surgeons (ASES) Shoulder Index showed significant improvements in all postoperative total and component scores (p = 0.0001). Most importantly, all three shoulder-rating systems demonstrated significant improvements in the postoperative scores for pain and function (p = 0.0001). While a general health status instrument such as the SF-36 can document the impact of an orthopaedic condition on a patient as well as the results of treatment, a more complete representation of the patient's condition requires the use of region-specific self-assessment questionnaires and evaluation by a physician.