Midlateral incision for trigger thumb release.
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Humans↗
Biomedical subjects
H B Bamberger
Publications and source records attributed to H B Bamberger.
Thumb joint flexion. What is normal?
The purpose of this study was to measure the amount of active flexion from a neutral position in normal thumb metacarpophalangeal and interphalangeal joints and compare the results with previously published reports. One hundred and nineteen subjects (238 thumbs) volunteered to have active flexion of the metacarpophalangeal (MP) and interphalangeal (IP) joints of the thumb measured with a computerized Greenleaf goniometer by a certified hand therapist. The mean MP flexion was 59 degrees and IP flexion was 67 degrees. The results of this study suggest that the accepted normal values of thumb flexion should be reconsidered, particularly as a guide for determining impairment.
Adolescent↗
Management of recurrent, complex instability of the elbow with a hinged external fixator.
We have treated 16 patients with recurrent complex elbow instability using a hinged external fixator. All patients had instability, dislocation or subluxation of the ulnohumeral joint. The injuries were open in eight patients and were associated with 20 other fractures and five peripheral nerve injuries. Two patients had received initial treatment from us; 14 had previously had a mean of 2.1 unsuccessful surgical procedures (1 to 6). The fixator was applied at a mean of 4.8 weeks (0 to 9) after the injury and remained on the elbow for a mean of 8.5 weeks (6 to 11). After treatment we found the mean range of flexion-extension to be 105 degrees (65 to 140). At a final follow-up of 23 months (14 to 40), the mean Morrey score was 84 (49 to 96): this translated into one poor, three fair, ten good and two excellent results. Complications included one fractured humeral pin, one temporary palsy of the radial nerve, one recurrent instability, one wound infection, one severe pin-track infection and one patient with reflex sympathetic dystrophy. Although technically demanding, the use of the fixator is an important advance in the management of recurrent complex elbow instability after failure of conventional treatment.
Adult↗
Coronal shear fractures of the distal end of the humerus.
We identified a shear fracture of the distal articular surface of the humerus, with anterior and proximal displacement of the capitellum and a portion of the trochlea, in six patients (five female and one male). The average age of the patients was thirty-eight years (range, ten to sixty-three years). Each fracture was the result of a fall from a standing height. A characteristic radiographic abnormality, which we have termed the double-arc sign, was seen on the lateral radiograph of each patient and represented the subchondral bone of the displaced capitellum and the lateral trochlear ridge. All patients were managed with open reduction, internal fixation, and early motion of the elbow. The average duration of follow-up was twenty-two months (range, eighteen to twenty-six months). The fracture united in all patients at an average of six weeks (range, four to nine weeks), without radiographic evidence of osteonecrosis of the fracture fragment. Flexion of the elbow averaged 141 degrees (range, 130 to 150 degrees), with an average flexion contracture of 15 degrees (range, 0 to 40 degrees). Pronation of the forearm averaged 83 degrees, and supination averaged 84 degrees. All patients had a good or excellent functional result, according to the elbow-rating scale of Broberg and Morrey.
Activities of Daily Living↗
Trapeziometacarpal joint arthrodesis: a functional evaluation.
Over a 10-year period, 39 trapeziometacarpal (TM) joint fusions were performed in 37 patients. Pin fixation was used in 27 fusions and staple fixation in 12; all were bone grafted. There were five delayed unions (greater than 3 months) and three nonunions. Twenty-four fusions were evaluated at an average of 4 years. Subjectively, there were 11 excellent, 7 good, 5 fair, and 1 poor result. Grip and pinch strength were symmetrical, and the nine-hole peg test (a measurement of dexterity) was slightly better on the treated side. X-ray films were taken and compared with 25 normal films to assess metacarpal mobility. There was a 72% reduction in the adduction/abduction arc and a 61% reduction in the flexion/extension arc. Despite the marked decrease in motion, subjective functional complaints were minimal. X-ray films were evaluated independently by a radiologist to assess progression of degenerative changes. Only two patients were noted to have changes at the scaphotrapezial joint.
Activities of Daily Living↗