Study Design. The mechanical properties of multilevel human cervical spines were investigated by applying pure rotational moments to each specimen and measuring multidirectional intervertebral motions. Objectives. To document main coupled motions the spine in form load–displacement curves. Summary Background Data. Although a number vivo vitro studies have attempted delineate normal movement patterns spine, none has explored complexity whole as three-dimensional structure. Methods. Sixteen...

Study Design. The internal architecture of cervical spine pedicles was investigated by thin sectioning and digitization radiographic images. Objectives. To provide quantitative information on the dimensions cortical shell thicknesses middle lower pedicles. Summary Background Data. Although there have been a number studies presenting data external pedicle, little is known regarding its thickness along pedicle axis. Methods. Twenty-five human vertebrae (C3–C7) were secured to thin-sectioning...

Study Design. An anatomic study of cervical vertebral bodies. Objectives. To provide quantitative information on the cortical shell architecture middle and lower Summary Background Data. Some external dimensions have been measured, but little data exists for bodies spine. Methods. Twenty-one human (C3–C7) were sectioned along parasagittal planes into five 1.7-mm thin slices each vertebra. Radiographs slice digitized, internal measured. Averages standard deviations computed. Single factor...

We have evaluated the clinical outcomes of simple excision, ulnar lengthening and Sauvé-Kapandji procedure in treatment deformities forearm patients with multiple hereditary osteochondromas. The medical records 29 (33 forearms) were reviewed; 22 (22 underwent excision (four lengthening) seven procedure. Simple increased mean supination from 63.2 degrees to 75.0 (p = 0.049). Ulnar did not significantly affect outcome. technique improved pronation 33.6 55.0 0.047) 70.0 81.4 0.045). may improve...

The treatment of fractures at the distal end radius continues to challenge orthopaedic and upper extremity surgeons.As our understanding injury mechanism local anatomy improve, so too have surgical techniques in helping patients regain functional use injured extremity.The purpose this maniscript is review methods available for fracture management.

Background: Although orthopaedic surgeons have been shown to prescribe excessive amounts of opioid analgesics postoperatively, the degree in which surgical trainees contribute this trend is unknown. The purpose study was compare self-reported opioid-prescribing behavior, factors influencing and perceptions patient utilization disposal between hand trainees. Methods: Attending hand, orthopaedic, plastic surgery programs were invited participate a web-based survey including demographic...

Carpal tunnel syndrome (CTS) is the most common compressive neuropathy affecting upper extremity, yet evidence-based guidelines for its diagnosis and treatment are lacking. We set out to expose any potential discrepancies in CTS practice attitudes based on surgeon's academic background, residency training, clinical experience, other factors.This was an online survey-based study. Members of American Association Hand Surgery (AAHS) were sent electronic mail request (n = 817). The questionnaire...

Background This study aims to compare surgical outcomes of severe carpal tunnel syndrome (CTS) treated with mini-incision versus extensile release. Methods The method employed in this was a retrospective review patients CTS, defined by electrophysiologic studies showing non-recordable distal sensory latency the median nerve. Patients underwent either (2 cm) release transverse ligament (group 1) or proximal wrist flexion crease 2). Exclusion criteria included prior release, use muscle flap,...

Aims The aims of this study were to compare the mid-term outcomes patients with late-stage arthritis wrist treated proximal row carpectomy (PRC) and dorsal capsular interposition (DCI) arthroplasty a matched cohort routine PRC alone. Patients Methods A total 25 arthritic wrists (24 patients) pre-existing degenerative changes capitate and/or lunate fossa radius + DCI over ten-year period. This group 1:2 50 (48 without in or that alone during same mean age at time surgery was 56.8 years (25...

We hypothesize that one-stage Integra skin coverage is an effective treatment modality for the of fingertip defects.Nine patients who sustained injuries were treated with coverage. In all cases, was placed directly on bone. Static two-point discrimination and Semmes-Weinstein Monofilament Test (SWMFT) used to determine sensations affected opposite unaffected digit. The QuickDASH, Cold Intolerance Symptom Severity (CISS), visual analog scale (VAS), a 0-10-point pain administered assess...

We hypothesize that depressive and anxiety disorders, chronic pain conditions, work-related factors are significant determinants of the time interval for return to work (RTW) in workers' compensation (WC) population following carpal tunnel release (CTR) surgery.We retrospectively reviewed records all WC patients who underwent open CTR surgery over a 5-year period by 1 3 fellowship-trained hand surgeons. One hundred fifty-two wrists 108 (64 unilateral, 44 bilateral) met inclusion criteria....

Congenital pseudarthrosis of the clavicle is a rare condition present at birth but often diagnosed later in childhood. Indications for surgical treatment include deformity, pain, or neurovascular compromise. Reconstruction usually involves resection pseudarthrosis, placement iliac crest bone graft, and internal fixation. We report case congenital that failed initial management another institution using marrow aspirate, graft substitute, fixation with plate screws. Treatment failure was...

Trigger digit is a common pathology encountered by hand surgeons, but there lack of evidence-based guidelines. We investigated the treatment preferences surgeons and explored whether geographic location, type residency training, or clinical experience associated with differences in practice.An online survey was distributed via email American Association for Hand Surgery to 615 members. The consisted 17 questions related conservative operative management trigger digits.One hundred thirty-nine...

The treatment of chronic mallet finger deformities in children can be challenging. Previously proposed for the fingers adults, tenodermodesis is a reconstructive procedure that may also applied to pediatric population. technique injuries presented here, featuring careful repair extensor mechanism and temporary transarticular Kirschner wire fixation distal interphalangeal joint. Preliminary clinical results with this have been encouraging, high patient/parent satisfaction few complications....

A multitude of operative approaches have been described for treatment Dupuytren's contracture. less-invasive technique segmental fasciectomies performed through multiple small transverse incisions is presented.Seventy-three digits in 37 patients were treated with fasciectomies. The results 34 14 are subsequent follow-up longer than 2 years.Metacarpophalangeal joint extension improved from a mean 32.5° to 2.2°, while proximal interphalangeal 22.9° 4.1°. Patients subjectively rated their...

Numerous options exist for the treatment of Dupuytren's contracture. This study describes technique and early results partial fasciectomy through a mini-incision approach as an additional option disease.This procedure involves excision diseased tissue with use multiple 1 cm transverse incisions. Patient demographics, digit involvement, number incisions required to release each digit, complications were recorded all patients. Range motion data was obtained from subgroup patients that had at...