Paul Dell

The distal radioulnar ligament reconstruction is a technique that may be used for distal radioulnar joint instability without arthritis and failed nonsurgical management; clinical results demonstrate resolved or improved stability. Recent literature has focused on the distal oblique bundle of the interosseous membrane and its contributions to stability. This article describes a technically simple surgical technique to reconstruct the distal oblique bundle and restore distal radioulnar joint stability.

Background This study created an anatomic reconstruction of the distal oblique bundle (DOB) of the interosseous membrane to determine its effect on distal radioulnar joint (DRUJ) instability and compare this technique with distal radioulnar ligament (DRUL) reconstruction. Questions/Purposes We hypothesized that this reconstruction would provide equivalent stability to DRUL reconstruction and that combining the two techniques would enhance stability. Methods Six cadaveric upper limbs were affixed to a custom frame. The volar/dorsal translation of the radius relative to the ulna was measured in 60° pronation, neutral, and 60° supination. Translation was sequentially measured with the DRUJ intact, with sectioned DRULs and triangular fibrocartilaginous complex (TFCC), and with sectioned DOBs. Reconstructions were performed on the DRULs, on the DOB tensioned in both neutral and supination, and employing both techniques. Results The DOB reconstruction, tensioned both in the neutral position and in 60° supination, was more stable than the partial and complete instability in 6/6 specimens in pronation and the neutral position and in 5/6 specimens in supination. The DOB reconstruction and the DOB reconstruction tensioned in supination were more stable than the DRUL reconstruction in 4/6 patients. Combining the two techniques did not further reduce translation. Conclusions The DOB reconstruction is capable of improving stability in the unstable DRUJ.

Forequarter amputation combined with chest wall resection may present a difficult closure problem. In a recent case, the defect was satisfactorily closed with a free flap from the amputated extremity, employing the entire soft tissue of the forearm.

Normal hand function is a balance between the extrinsic and intrinsic musculature. Although individually the intrinsics are small muscles in diameter, collectively they represent a large muscle that contributes approximately 50% of grip strength. Dysfunction of the intrinsics consequently leads to impaired grip and pinch strength as well recognized deformities. Low ulnar nerve palsy preserves ulnar innervated extrinsics resulting in sensory loss, digital clawing, thumb deformity, abduction of the small finger, and asynchronous finger motion. High ulnar nerve palsy is characterized by the above plus paralysis of the ulnar profundi and the flexor carpi ulnaris. Understanding the normal anatomy allows the clinician to identify the site of the lesion and plan appropriate surgical intervention. This article revisits the classic work of Richard J. Smith on ulnar nerve palsy with contemporary perspective.

The interaction between leaders and members in a year-long family therapy seminar is systematically compared to the process that unfolds between therapist and family during the course of family therapy. A five stage developmental process common to both is postulated and described: (1) Battle for Structure, (2) Naive Enthusiasm, (3) Conflictual Frustration, (4) Task Orientation, and (5) Mutuality. The dynamic elements of each stage are analyzed and factors affecting their development are identified. It is concluded that this five stage process occurs in all similar groups, but that the content of each stage may vary widely from group to group.

Benjamin Whorf's description of the Hopi Indian culture is used to explore the differences between the grammar/metaphysics of systems theory and the Aristotelian culture of Western man. The Hopi, instructed from birth in an optimistic and process-view of the world, provide a worthy model for family therapists who too often succumb to the pessimistic and thing-view of their Western World. Even those therapists who are committed to systems theory tend to have lacunae in their conceptual thinking. In particular, Western expectations about the nature of people, systems, and especially change, frequently contaminate the process of therapeutic intervention. To the extent that a therapist remains unaware of his own Aristotelian epistemological heritage, his or her ability to “think systems” will be impeded, as may his or her therapeutic effectiveness.

This paper examines the psy chi at ricdiagnosis of dissociative identity disorder (DID)inlightofthedevelopmentsinpsychi at ricclassification that have guided the last four re vi sions of the Diagnostic and Sta tis ti calMan ualforMen talDis or ders (DSM) (Amer i can Psychiatric Association, 1980, 1987, 1994, 2000). The author argues that multiple per son al ity 's pas sage from DSM-III, through DSM-III-R, to its current form as DID in DSM-IV-TR has left the di ag no sis out of step with the state of the art of psy chi atric classification. Ten dis advantages of the Diagnostic and Sta tis ti calMan ual of Men talDis or ders, Fourth Edi tion- Text Revision (DSM-IV-TR) cri te riafor DID are iden ti fied. The DSM-IV-TR cri te ria for DID: (1) are out of step with the state of the art of psy chi at ric clas si fi cation; (2) are not based on taxometric anal y sis of the symp toms of DID; (3) in correctly im ply that DID is a closed con cept; (4) have poor con tent valid ity; (5) throw away im portantinformation; (6) dis courage taxonomic research; (7) have poor reliability and cause frequent misdiagnoses; (8) are not “user-friendly”; (9) are un nee es sar ily con tro versial; and (10) along with pre vi ous ver sions of the DSM, have pro duced an artifactually low base-rate of DID for the past 20 years. In an effort to remedy these disadvantages, a re liable, user-friendly, polythetic set of diagnostic criteria for “Major Dissociative Disorder” is proposed for DSM-V. Using these polythetic cri te ria, the dissociative dis or ders (presently con cep tu al ized as Dissociative Am ne sia, Dissociative Fugue, DID, Depersonalization Disorder, and Dissociative Disorder Not Otherwise Spec ified) can be re struc tured into an eas ily un der stood and more re liable set of di ag nos tic en ti ties. This al ter nate nosology of the dissociative disorders consists of Sim pie Dissociative Dis or der (with at least three). sub types), Gen er al ized Dissociative Dis or der, Major Dissociative Disorder (with two subtypes), and Dissociative Disorder Not Otherwise Specified.