Robert J. Strauch

Unstable Distal Radial Fractures Treated with External Fixation, a Radial Column Plate, or a Volar Plate: A Prospective Randomized Trial

BACKGROUND Optimal surgical management of unstable distal radial fractures is controversial, and evidence from rigorous comparative trials is rare. We compared the functional outcomes of treatment of unstable distal radial fractures with external fixation, a volar plate, or a radial column plate. METHODS Forty-six patients with an injury to a single limb were randomized to be treated with augmented external fixation (twenty-two patients), a locked volar plate (twelve), or a locked radial column plate (twelve). The fracture classifications included Orthopaedic Trauma Association (OTA) types A3, C1, C2, and C3. The patients completed the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire at the time of follow-up. Grip and lateral pinch strength, the ranges of motion of the wrist and forearm, and radiographic parameters were also evaluated. RESULTS At six weeks, the mean DASH score for the patients with a volar plate was significantly better than that for the patients treated with external fixation (p = 0.037) but similar to that for the patients with a radial column plate (p = 0.33). At three months, the patients with a volar plate demonstrated a DASH score that was significantly better than that for both the patients treated with external fixation (p = 0.028) and those with a radial column plate (p = 0.027). By six months and one year, all three groups had DASH scores comparable with those for the normal population. At one year, grip strength was similar among the three groups. The lateral pinch strength of the patients with a volar plate was significantly better than that of the patients with a radial column plate at three months (p = 0.042) and one year (p = 0.036), but no other significant differences in lateral pinch strength were found among the three groups at the other follow-up periods. The range of motion of the wrist did not differ significantly among the groups at any time beginning twelve weeks after the surgery. At one year, the patients with a radial column plate had maintained radial inclination and radial length that were significantly better than these measurements in both the patients treated with external fixation and those with a volar plate (all p < 0.05). CONCLUSIONS Use of a locked volar plate predictably leads to better patient-reported outcomes (DASH scores) in the first three months after fixation. However, at six months and one year, the outcomes of all three techniques evaluated in this study were found to be excellent, with minimal differences among them in terms of strength, motion, and radiographic alignment.

Hylan Versus Corticosteroid Versus Placebo for Treatment of Basal Joint Arthritis: A Prospective, Randomized, Double-Blinded Clinical Trial

PURPOSE Conservative, nonsurgical therapies for basal joint osteoarthritis, such as thumb spica splinting and intra-articular corticosteroid injections, remain the mainstays for symptomatic treatment. This study compares intra-articular hylan, corticosteroid, and placebo injections with regard to pain relief, strength, symptom improvement, and metrics of manual function in a randomized, controlled, double-blinded study. METHODS Sixty patients with basal joint arthritis were randomized to receive 2 intra-articular hylan injections 1 week apart, 1 placebo injection followed by 1 corticosteroid injection 1 week later, or 2 placebo injections 1 week apart. Patients were evaluated at 2, 4, 12, and 26 weeks and assessed with Visual Analog Scale pain scores, strength measures, difference scores, Disabilities of the Arm, Shoulder, and Hand (DASH) scores, and range of motion measurements. RESULTS All groups reported pain relief at 2 weeks. The steroid and placebo groups had significantly less pain at week 4 compared with baseline, but this effect disappeared by week 12. Only hylan injections continued to provide pain relief at 12 and 26 weeks compared with baseline. There were no significant differences in pain between groups at any time. At 12 and 26 weeks, the hylan group had improved grip strength compared with baseline, whereas the steroid and placebo groups were weaker. At 4 weeks, the steroid group reported in the difference score a greater improvement in symptoms (68%) compared with the hylan (44%) and placebo (50%) groups. Whereas at 26 weeks the hylan group reported the largest improvement in symptoms (68%), this was not statistically different from the placebo (47%) and steroid (58%) groups. There were no significant differences in Disabilities of the Arm, Shoulder, and Hand scores or range of motion among the groups. There were no complications from any injection. CONCLUSIONS There were no statistically significant differences among hylan, steroid, and placebo injections for most of the outcome measures at any of the follow-up time points. However, based on the durable relief of pain, improved grip strength, and the long-term improvement in symptoms compared with preinjection values, hylan injections should be considered in the management of basal joint arthritis of the thumb. TYPE OF STUDY/LEVEL OF EVIDENCE Therapeutic I.

Acute dislocation of the carpometacarpal joint of the thumb: An anatomic and cadaver study☆

An anatomic study was undertaken to provide an understanding of the ligamentous disruption that occurs during acute dislocation of the thumb carpometacarpal joint. Thirty-eight cadaver thumbs were dissected free of soft tissue, with the ligaments preserved. The dorsoradial, posterior oblique, anterior oblique, and intermetacarpal ligaments were identified in all specimens. A dorsal dislocating force was applied to the base of the thumb metacarpal to recreate the mechanism of clinical dislocation. Serial sectioning of the ligaments was performed with the metacarpal in neutral, flexion, and extension. The primary restraint to dorsal dislocation was found to be the dorsoradial ligament, with the anterior oblique ligament allowing dislocation by subperiosteal stripping from the base of the first metacarpal. After reduction, the joint was most stable in pronation and extension, which tightened the anterior oblique ligament. We conclude that the dorsoradial ligament is the primary restraining force with respect to acute dorsal dislocation of the thumb carpometacarpal joint.

The RASL procedure: reduction and association of the scaphoid and lunate using the Herbert screw.

The RASL Procedure: Reduction and Association of the Scaphoid and Lunate Using the Herbert Screw MELVIN ROSENWASSER;KENJI MIYASAJSA;ROBERT STRAUCH; Techniques in Hand & Upper Extremity Surgery

Topography of the osteoarthritic thumb carpometacarpal joint and its variations with regard to gender, age, site, and osteoarthritic stage

The articular topography of 46 osteoarthritic thumb carpometacarpal joints was quantitatively analyzed, as well as variations with regard to gender, age, site, and anatomic osteoarthritic stage. It was found that for osteoarthritic thumb carpometacarpal joints, (1) the opposing articular surfaces of elder and severely degenerated joints are more congruent than those of middle-aged and minimally or moderately degenerated joints, although the articular contact area is not significantly different when accounting for thinning of the cartilage layer with age or disease; (2) significant changes in joint topography due to osteoarthritis only occur in severely degenerated joints; (3) joints in women are less congruent, have smaller contact areas, and are likely to experience higher contact stresses than joints in men for similar activities of daily living that involve similar joint loads; and (4) osteoarthritic changes are less severe on the dorsoulnar aspect of the trapezium and the dorsal aspect of the metacarpal, which are known to be low load-bearing regions.

Metacarpal shaft fractures: The effect of shortening on the extensor tendon mechanism

Spiral and oblique metacarpal shaft fractures frequently develop shortening through the fracture site. The acceptable amount of fracture shortening has not been well established. The goal of this study was to elucidate the acceptable limits of metacarpal shaft fracture shortening in a cadaver model by assessing the magnitude of the metacarpophalangeal (MCP) joint extensor lag produced. Nine fresh-frozen cadaver hands were used to create a metacarpal shaft fracture model in the second and fifth metacarpal bones. Sequential shortening up to 10 mm in 2-mm increments was performed. The results revealed an average of 7 degrees of extensor lag at the MCP joint produced for every 2 mm of metacarpal shortening. The capacity of the MCP joint for active hyperextension may compensate for the extensor lag produced by metacarpal shortening in the clinical setting.

Posttraumatic Elbow Stiffness: Evaluation and Management

Posttraumatic elbow stiffness is a common problem that is often difficult to manage. The goal of treatment is to restore a functional range of elbow motion (> or =30 degrees to 130 degrees ). Nonsurgical treatment includes physical therapy and splinting. If nonsurgical treatment has failed, the type of surgical treatment required depends on the extent of degenerative changes. When degenerative changes are absent or mild, soft-tissue release offers reliable increases in elbow motion. When moderate degenerative changes exist within the joint, debridement arthroplasty of osteophytes and soft tissue has shown some success with increase in joint motion. With advanced degenerative changes, the therapeutic options are more limited. Results from biologic resurfacing arthroplasty are unpredictable, and total elbow arthroplasty should be reserved for the lower-demand elbow in a physiologically older individual.

Radiography and visual pathology of the osteoarthritic scaphotrapezio-trapezoidal joint, and its relationship to trapeziometacarpal osteoarthritis.

PURPOSE To determine and quantify the relationship of osteoarthritis (OA) in the trapeziometacarpal, scaphotrapezial, and scaphotrapezoidal joints; to ascertain the dependability of radiographic assessment of trapeziometacarpal, scaphotrapezial, and scaphotrapezoidal OA; to determine the articular topography of the scaphotrapezio-trapezoidal (STT) joint (composed of the scaphotrapezial and scaphotrapezoidal articulations) using stereophotogrammetry; and to characterize the articular wear patterns of STT OA. METHODS Sixty-nine fresh-frozen human cadaveric hands were staged radiographically and by gross visual examination for the presence of OA in the trapeziometacarpal and STT joints. Twenty randomly selected joints also were evaluated to determine the topography of the STT joint using stereophotogrammetry. RESULTS Concomitant severe osteoarthritic degeneration was found in the trapeziometacarpal and STT joint in 60% of our specimens. A correlation was found in the severity of OA in the trapeziometacarpal and STT joints. Radiographic and gross visual evaluation of STT OA concurred in 39% of our specimens. CONCLUSIONS The prevalence of concomitant trapeziometacarpal and STT OA, and the uncertainty of radiographic evaluation of STT OA, indicate the need to visualize the STT joint intraoperatively to determine the true degree of degenerative changes present.

The teres major muscle: an anatomic study of its use as a tendon transfer.

Eleven fresh-frozen cadaver shoulders were dissected to define the anatomy of the teres major muscle and tendon and to determine the muscles potential for use as a tendon transfer to the humeral head. Of the 11 specimens, 7 had Mathes type II circulation. The primary and secondary pedicles, from the circumflex scapular artery, entered the muscle 4.1 cm and 0.5 cm from the scapula, respectively. The lower subscapular nerve entered 4.1 cm from the scapula. Mean tendon and muscle lengths were 2.0 and 11.8 cm, respectively. As a unipolar transfer, the tendon reached the greater tuberosity in all but 1 specimen. The bipolar transfer offered numerous theoretical possibilities. We believe that the teres major has an appropriate vascular supply and adequate length to make it suitable for tendon transfer to the humeral head.

the Role of Flexor Tenosynovectomy in the Operative Treatment of Carpal Tunnel Syndrome

Background: We conducted a prospective, randomized study to evaluate the effect of flexor tenosynovectomy as an adjunct to open carpal tunnel release for the treatment of idiopathic carpal tunnel syndrome and reviewed the histological characteristics of the flexor tenosynovium to identify possible correlations between histopathology and symptoms.Methods: Eighty-eight wrists in eighty-seven patients with idiopathic carpal tunnel syndrome were randomized to open carpal tunnel release with or without flexor tenosynovectomy. A validated self-administered questionnaire for the assessment of symptom severity and functional status was completed both before and after the operation to assess patient outcome. The study group included fifteen men and seventy-two women with a mean age of fifty-eight years. All patients were followed for a minimum of twelve months after the operation. Intraoperatively, the tenosynovium of all patients was graded on the basis of its gross appearance. Half of the wrists were then treated with a flexor tenosynovectomy through the operative incision, and the tenosynovium was graded histologically. Correlations were sought between the gross appearance of the tenosynovium and the preoperative and postoperative symptoms and functional status, between the histologic appearance of the tenosynovium and the preoperative and postoperative symptoms and functional status, and between the gross and the histologic findings.Results: After the operation, both groups improved significantly with respect to symptom severity and functional status (paired t test), with no significant difference between the groups (unpaired t test). No significant correlation was found between the gross appearance of the tenosynovium and the preoperative or postoperative symptoms and functional status, between the histologic appearance of the tenosynovium and the preoperative or postoperative symptoms and functional status, or between the gross and the histologic findings.Conclusions: We observed neither an added benefit nor an increased rate of morbidity in association with the performance of a flexor tenosynovectomy at the time of carpal tunnel release. We identified no clinical correlations that might predict which individuals would benefit from flexor tenosynovectomy on the basis of either the gross (intraoperative) or histologic evaluation of the flexor tenosynovium. Our findings suggest that routine flexor tenosynovectomy offers no benefit compared with sectioning of the transverse carpal ligament alone for the treatment of idiopathic carpal tunnel syndrome.