Prévia do material em texto
Management of Proximal Humeral Fractures John J. Basti, PT Emil Dionysian, MD Phyllis W. Sherman, PT louis U. Bigliani, MD The Shoulder Service, New York Orthopaedic Hospital, Columbia-Presbyterian Medica l Center, New York, New York T he shoulder joint has the greatest range of motion of any joint in the human body. Fol lowing proximal humeral fracture, a coordinated ef fort among the patient, surgeon, and therapist is essential to restoring shoulder function . A clear understanding of the injury, its treatment, and the progression of fracture healing is critical in rehabili tation of patients who have proximal humeral frac tures. The following is an overview of the manage ment of these fractures, including guidelines for rehabilitation. In the early part of the twentieth century, meth ods of closed reduction, traction, casting, and ab duction splinting were developed to achieve and maintain accurate anatomic alignment of displaced proximal humeral fractures. Unfortunately, stiffness and contracture were the major undesired outcomes. The dilemma is that starting motion too soon may lead to mal- or nonunion, and immobilizing too long will result in stiffness and contracture. An adaptive and progressive early physical therapy program that continues until full functional range of motion is at tained is the mainstay of the postoperative or post reduction treatment for the proximal humeral frac ture. INCIDENCE Osteoporosis is a significant etiologic factor in proximal -humeral fractures . These fractures, like proximal femoral fractures, have a higher incidence in older age groups. In one study,23 proximal hu meral fractures occurred at nearly 70% of the reported rate of proximal femoral fractures. The proximal humerus is the most common lo cation of fracture in the humerus (45%), and when considering adults more than 40 years old, this in cidence increases to 76%. There is a higher incidence in women than men by a rate of two to one. 23 There is also increased incidence of alcoholism and prior gastric resection in patients with proximal humeral fractures. Correspondence and reprint requests to Louis U. Bigliani, MD, 161 Ft. Washington Avenue, New York, NY 10032. PATHOMECHANICS The most common mechanism of proximal hu meral fractures is a fall on the outstretched hand from standing height or lower. Osteoporosis is usually present in older individuals. 4 Another mechanism is excessive rotation of the arm, especially in the ab ducted position of the shoulder. The humerus locks against the acromion in a pivotal position and a frac ture can occur, especially in osteoporotic bone. Other less frequent causes are electric shock or a convulsive episode. Also, a metastatic tumor or a recent biopsy site may lead to fracture by weakening the bone . CLASSIFICATION The most commonly used classification for prox imal humeral fractures is the Neer four-part classi fication. 4 This encompasses the anatomy and bio mechanical forces that result in the displacement of the fracture fragments. It is based on the relationship of the four major parts of the proximal humerus: the greater tuberosity, lesser tuberosity, head, and shaft. Displacement is defined as separation of more than 1 cm or angulation of more than 45 degrees. For example, a two-part fracture is one where there is "displacement" between any of the above four parts. If there are other fracture lines and the separation or angulation is not enough to meet the criterion, it is not considered "displaced" and not counted as an additional part in the classification (Chart 1).4 DIAGNOSIS Clinical Presentation The majority of these fractures manifest acutely and the most common symptoms are pain and swell ing, especially in the area of the greater tuberosity, which corroborates the x-ray finding. Ecchymosis generally occurs within 24-48 hours and may spread to the chest wall, flank, and forearm. The diagnosis of proximal humeral fracture, however, is made ra diographically. April-June 1994 111 CHART 1. The Neer Classification System for Proximal Humeral Fractures Anatomical Neck Surgical Neck Greater Tuberosity Lesser Tuberosity Fracture Dislocation Head Splitting Displaced Fractures 2-part 3-part Articular Surface Reproduced with permission from: Bigliani LV: Fractures of the proximal humerus. In Rockwood CA Jr, Matsen FA II (eds): The Shoulder, vol. 1. Philadelphia, W. B. Saunders, 1990, pp. 278-334. Neurovascular injuries are not uncommon. The most common nerve injured in fractures about the shoulder is the axillary nerve. This nerve supplies the deltoid muscle and skin overlying it. Occasion ally, in the postfracture or postoperative period there may be inferior subluxation of the humerus. In the majority of cases this is due to deltoid fatigue or atrophy rather than an injury to the axillary nerve. Gentle isometric exercises help recover the deltoid tone while the arm is in a sling. If the subluxation is severe and lasts for more than four weeks, an axillary nerve palsy must be considered. Brachial plexus in juries also can occur, with a reported incidence of 6%.25 Fracture dislocations of the proximal humerus are difficult to diagnose, particularly in the posterior direction where more than 50% of these injuries are missed by the initial treating physician. 4 Axillary and 112 JOURNAL OF HAND THERAPY scapular radiographic views, or computed tomogra phy (CT) scans, are important in diagnosing fracture dislocations. Radiographic Evaluation The trauma series is the best initial method for diagnosing proximal humeral fractures. This consists of anteroposterior and lateral (Y view) radiographs in the scapular plane and, if possible, an axillary view. The axillary view is essential for evaluating the glenoid surface and very helpful in making the di agnosis of anterior or posterior fracture dislocation. The Velpeau axillary technique allows an axillary view to be obtained without removing the patient's arm from the sling. 4 Other diagnostic tests that are useful include tomography and CT. Tomograms are espe cially useful in evaluating a proximal humeral frac ture for nonunion or articular surface involvement. A CT scan is helpful in judging the amount of dis placement of tuberosity fractures, impression frac tures, and chronic fracture-dislocations. MANAGEMENT Fortunately, the majority of proximal humeral fractures are minimally displaced and can be satis factorily managed with a sling and early range of motion exercises. For significantly displaced frac tures, various methods of treatment have been pro posed, including closed reduction, casts, splints, per cutaneous pinning, 8, 13 external fixation,10 open reduction and internal fixation,6,9 and humeral head replacement. 17,25 Each method can have its useful role in fracture management. Some of the factors involved in the decision-making process are the frac ture type, quality of the bone, and compliance of the patient. The two major options are conservative or nonoperative and operative approaches. Conservative This method is ideally suited for patients who have minimally displaced fractures, those who are less than ideal surgical candidates, or those with lim ited functional goals. On occasion, closed reduction can improve alignment and function. In the case of two-part surgical neck fracture this is done, by flexing and adducting the arm to counteract the deforming forces of the pectoralis major muscle. Greater tub erosity fractures are less amenable to closed reduc tion, because they are pulled superior and posterior by the rotator cuff. Three-part fractures are quite un stable and difficult to manage optimally by closed reduction, and open reduction is required for accu rate reduction and optimal function. In the event of a closed reduction of a displaced fracture, testing the stability of thefracture under fluoroscopy can help with decisions of timing and intensity of physical therapy during the recovery period. Reduced or minimally displaced fractures are im- mobilized in a sling with the patient's arm at the side or in the Velpeau position. A swath may enhance immobilization and comfort. An axillary pad is useful to prevent skin excoriation secondary to sweating. Gentle range of motion exercises can be started seven to ten days following the fracture, when the pain has diminished and the patient is less apprehensive. Ad vancement of the intensity and duration of therapy is based upon the fracture configuration, its apparent or tested stability, signs of fracture healing by ra diography, and the patient's tolerance. 16 Intermittent radiographs taken in two perpen dicular planes are essential in ruling out progressive displacement. Overly aggressive exercises may dis tract a minimally displaced fracture and result in mal union or nonunion. The greatest amount of improve ment in range of motion occurs between the third and eighth weeks following injury. An organized and supervised physical therapy program is essential dur ing this period. The outline of the rehabilitation pro tocols is provided below. Operative Once the decision is made that conservative TABLE 1. Closed Reduction: Nondisplaced or Minimally Displaced Fracture of the Surgical Neck and the Anatomical Neck, and Less Than 1 cm Displaced Tuberosity Fracture Time Postfracture 7-10 days 10 days to 3 weeks (when pain has diminished and the patient is less apprehen sive) 3-6 weeks 4 weeks 6-8 weeks 8 weeks Phase Exercise Program' Early passive Pendulum motion Passive FE Passive ER Phase I Isometrics Phase II Phase III Pendulum AAFR AA ER to 40 degrees Pendulum AAFE AA ER AA HEt IR ER Anterior deltoid Posterior deltoid Middle deltoid Active FE, supine Active FE with weights, supine FE, erect, with stick Eccentric pulleys Resistive exercises Stretching Special stretching *FE = forward elevation; ER = external rotation; IR = in ternal rotation; HE = hyperextension; and AA = active assistive. tAt six weeks. TABLE 2. Open Reduction/Internal Fixation and Humeral Head Replacement for Four-part Fracture Time Postoperative 3-5 days 7-10 days 3 weeks 4-6 weeks 12 weeks Phase Exercise Program' Early passive Supine ER to 40 degrees motion Supine FE Phase I Pendulum ER with stick FE IRt HEt Phase I Pulleys Isometrics IR Phase II Phase III ER Anterior deltoid Posterior deltoid Lateral deltoid Active FE, supine Active FE with weights, supine FE, erect, with stick Eccentric pulleys Resisted exercises Stretching Special stretching *ER = external rotation; FE = forward elevation; IR = in ternal rotation; and HE = hyperextension. tNot to be done with tuberosity fracture. treatment including closed reduction is not adequate, the following methods can be utilized for reduction and fixation of proximal humeral fractures. Open Reduction and Internal Fixation. Open re duction and internal fixation has been popular since the early part of this century. Various techniques and devices have been proposed to treat patients who have these fractures. This approach, in most cases, provides sufficient stability to allow careful controlled early range of motion exercises and helps to avoid stiffness and contracture.23 It is the treatment of choice for displaced three-part and two-part greater tuber osity fractures of the humerus. 4,1l,12,21-24 The stan dard exposure is through the deltopectoral approach. At times, insertion of the deltoid or the pectoralis major may be elevated for more exposure. This may affect the postoperative rehabilitation course by de laying the initiation of the active phase. The current trend is toward limited dissection of the soft tissue about the fracture fragments and using the minimal amount of hardware required for stable fixation. 6 After the open reduction and internal fixation, postoper ative rehabilitation should be adjusted to the stability of the fixation, the quality of the bone and soft tis sues, and the type of surgical approach and soft tissue repair. Some of the common postoperative protocols are detailed in the rehabilitation section. Following are some of the more commonly used op erative techniques. Wire or Sutures. Heavy sutures (or wires) allow utilization of the tension band principle to gain rel- April-June 1994 113 FIGURE 1. Passive forward elevation in the plane of the scapula is performed by the therapist with the patient either erect (top) or supine (bottom). atively stable fixation. This technique is especially useful in reattaching the greater or lesser tuberosity onto the shaft. This is done using transosseous suture in patients with strong bone or with suture through the rotator cuff in the elderly. The preferred suture is no. 5 nonabsorbable or 18-gauge wire in figure-of eight configuration. This method can be used alone or in conjunction with other types of hardware (rods or prostheses). Rods. Flexible intramedullary rods have been popular with many authors,l5,24,26 especially for in ternal fixation of two-part surgical neck fractures. The most commonly utilized devices are Enders nails and Rush rods. These also can be used in conjunction with wires or sutures through the standard open approach or through a very limited incision that splits the deltoid and rotator cuff. Frequent complications of this technique have been the inability to achieve stable fixation and impingement of the device against the acromion during shoulder elevation, necessitat ing removal of the hardware. Plate and Screws, The use of a buttress plate and screws has been associated with good results, es pecially with two-part surgical neck fractures. The best results have been in cases where bone quality has been good and soft-tissue dissection has been limited. Malposition of the plate can cause impinge- 114 JOURNAL OF HAND THERAPY FIGURE 2. Passive external rotation is performed by the ther apist with the patient's arm comfortably abducted in neutral with the patient in the sitting position (left) or supine (right) with the elbow supported. Verbal cues for relaxation should accompany motion . FIGURES 1 and 2. Early passive motion. ment, necessitating later removal. As with rods, the plate or screws can be an anchoring point for addi tional wires or sutures. Humeral Head Replacement. Humeral head re placement for the management of proximal humeral fracture dislocation was first reported by Neer in 1953. Currently, the humeral head replacement prosthesis is used in the treatment for four-part, selected os teoporotic three-part and head-splitting fractures. Important considerations regarding this technique are the restoration of humeral length, humeral head ver sion, and secure fixation of the tuberosities in their correct positions to prevent impingement. Passive range of motion can usually be started on the third day. COMPLICATIONS Many complications have been reported follow ing both closed and open treatments for displaced fractures. These can be categorized as early or late. Possible early problems include rupture of the rotator cuff or the biceps tendon, 3 neurovascular injuries,2.27 and thoracic injuries. These problems, especially brachial plexus injuries, are usually the result of the initial trauma and in mild cases may become evident only during the rehabilitation period. Other complications may arise later during the rehabilitative period. The most common of these in clude avascular necrosis, nonunion, malunion, hard ware failure, frozen shoulder, and infection. Nonunion Nonunion of the proximal humerus is rare and, even if present, may not be debilitating. Treatment may be difficult because this complication often oc curs in older patients withosteoporotic bone. Some of the causes include soft-tissue interposition, sys temic disease, preexisting stiffness of the glenohu meral joint, uncooperativeness on the part of the patient, and overly aggressive physical therapy. In surgically managed cases it may be secondary to in adequate fixation, poor bone quality, or infection. There is typically a characteristic cavitation of the head fragment due to resorption of the bone beneath Osteonecrosis Even though osteonecrosis has been reported in relation to some two-part fractures, it is most com mon in three- and especially four-part fractures, oc curring in up to 34% of cases. The result usually is a stiff, painful joint. The treatment of choice for symptomatic osteonecrosis of the humeral head is humeral head or total shoulder arthroplasty. FIGURE 3. Passive as sisted exercises are started with the pendulum: small clockwise and counter clockwise motion with the patient bent at the waist with the back supported. fiGURES 3-7. Phase I, pendulum and passive assisted exercises. FIGURE 4. Supine for ward elevation with the noninvolved extremity as sisting the involved extrem ity. The elbow should be bent and gradually extended through the range of motion. fiGURE 6. Extension with the stick. The uninvolved extremity helps the involved extremity move into exten sion. FIGURE 5. Supine exter nal rotation with a stick. The arm is supported comforta bly at the side to prevent ex tension. The non involved side pushes the relaxed in volved extremity outward, with the elbow flexed at 90 degrees. FIGURE 7. The use of pulleys, with the uninvolved extremity supplying power to raise the involved extrem ity. April-June 1994 115 FIGURE 8. Supine resistive internal rotation. FIGURE 9. Supine resistive external rotation. FIGURE 10. Erect resis tive anterior deltoid. FIGURE 11. Erect resis tive middle deltoid. FIGURE 12. Erect resis tive posterior deltoid. FIGURES 8-12. Isometrics, which can be initiated with the patient supine and then progressed with the patient standing. the head. Open reduction and internal fixation, with the addition of bone graft, is the preferred treatment. In most cases a spica cast is necessary for six to eight weeks. Occasionally, humeral head replacement may be preferable. Malunion Healing of the fracture after inadequate reduc tion or failure of fixation leads to malunion. This problem can significantly contribute to loss of range of motion, weakness, and pain with active elevation. Greater tuberosity malunions lead to impingement against the acromion. 4,17,21 These are best managed by mobilization and reattachment of the tuberosity fragment. In cases with moderate displacement, anterior acromioplasty may also be helpful. In more complex cases, multiple osteotomies or prosthetic re placement may be indicated . Adhesive Capsulitis Adhesive capsulitis may result if rehabilitation following a fracture or its operative repair has not been adequate. A progressive organized exercise pro gram should be started following diagnosis. If the 116 JOURNAL OF HAND THERAPY fracture is healed without significant malunion, ma nipulation with the patient under anesthesia and possible arthroscopic or open debridement of the jOint and the subacromial space may be the next step. Also, any possible mechanical cause, such as im pinging hardware, must . be addressed. REHABILITATION Appropriate rehabilitation following proximal humeral fracture is essential for maximum recovery of function. Management of these patients can be complicated and sometimes prolonged, Close communication between the surgeon, therapist, and patient is essential. It is important for therapists to understand that fracture management can be a lengthy process, with maximum recovery taking place anywhere from six postinjury months to a year. 20,25 A number of factors influence recovery: the complexity of the fracture, the type of reduction, and the extent of soft-tissue involvement, as well as the patient's age and compliance. Degenerative joint disease, concomitant rotator cuff tear, and gleno humeral dislocation must be considered during the rehabilitation process. More rigid motion restrictions apply to those patients who had dislocations or re quired rotator cuff repair. The fracture fixation must be secure, as determined by the surgeon prior to initiation of the exercise program. Range of motion should be discontinued if the therapist notes crepitus at the fracture site, and the surgeon should be no tified immediately. Overly aggressive range of mo tion may distract a minimally displaced fracture and result in malunion or nonunion. 4 Posttraumatic pain, postoperative pain, muscle spasm, and prior stiffness due to arthritis can limit the patients' ability to achieve early motion. Applications of electrical stimulation, heat, and cold are useful for decreasing edema, spasm, and pain. Massage for relief of spasm can facilitate range of motion. Obtaining a detailed history and performing an appropriate physical examination direct the estab lishment of realistic goals during rehabilitation. The FIGURE 13. Supine forward elevation with a stick is initiated with the elbows bent. success of the program relies heavily on patient ed ucation, compliance, and ability to participate in a home exercise program. Written instructions are given to provide a clear understanding of the home pro gram. The rate of exercise progression with all frac ture patients is coordinated by the surgeon and de pends on the severity of the fracture, the stability of the reduction, and the formation of callus. Consid eration of these elements will contribute to an optimal final result. Early passive motion,18 followed by a three-phase progressive exercise protocol,1O is a working model that addresses the principal requirements of fracture rehabilitation. Several authors4.18.2o believe that early passive motion tailored to the stability of the fracture is the keystone to successful fracture management, provided that the fracture be stable and that adequate pain control be achieved. A preliminary study of early passive motion with electromyographic analySis sug- FIGURE 14. A one-to-two pound weight is added as strength improves. FIGURE 15. Active supine forward elevation is per formed. FIGURE 16. Activation of the anterior del toid is accomplished by sliding the hand across a smooth surface and elevating it simultane ously. FIGURES 13-18. Phase II, active and early resis tive exercises. Active assisted concentric and eccen tric exercises are initiated with the patient supine and are progressed to an erect position as tolerated. FIGURE 17. Exercise with the patient erect is then pro gressed to concentric and eccentric forward elevation with the stick. FIGURE 18. Pulley exer cises can be performed with eccentric lowering of the in volved extremity. April-June 1994 117 FIGURE 19. As healing permits, forward elevation and ab duction are combined, with the uninvolved arm assisting. FIGURE 20. Internal ro tation with the assistance of the other hand. FIGURE 22. Combined abduction and exter nal rotation stretching is accomplished by put ting the forearms on the doorjamb and leaning into the doorway. FIGURE 21. Forward ele vation with the patient at tempting to press the upper body and axilla close to the wall. FIGURES 19-23. Phase III, stretching. FIGURE 23. Over-the-door stretching with both hands helps eliminate substitution. Gradual body weight should be applied by bending the knees as comfort permits. Remember that these exer cises should be done gently at first, and the patient should be progressed as tolerated. gested that adequate relaxation of the muscles and having a knowledgeable therapist supervision in cluding verbal cues for relaxation are effective in ac complishing safeearly passive motion. 19 Motion may be restricted completely or partially during the early healing phase, depending on the type of fracture and its method of treatment. Motion of the proximal and distal joints should always be incorporated into the program. Tables 1 and 2 and Figures 1 through 33 dem onstrate our protocol for fracture management. It consists of early passive motion followed by a three phase program: phase I, pendulum and passive as sisted exercises; phase II, active and early resistive exercises; and phase III, advanced stretching and 118 JOURNAL OF HAND THERAPY strengthening. Isometric exercises are begun follow ing phase I. Patients are instructed to perform their range of motion exercises three to four times daily and to use pain medication and home application of heat or ice as needed. 10 Phase III strengthening exercises should be limited to one or two times daily. Later in the rehabilitation process, strengthening may be done three to four times per week as the intensity of the workout increases. Functional strength is the ulti mate goal. The requisite demands of the upper ex tremity vary with the patient's occupation, lifestyle, age, and leisure participation in athletics. Exercise is tailored to achieve the maximal requirement of each individual. Unfortunately, not all patients progress through the protocol predictably. Excessive stiffness or severe weakness may be present. Patients who exhibit prolonged weakness may have had extensive soft-tissue damage with resultant rotator cuff and deltoid insufficiency. In these in stances, when patients are unable to actively elevate the arm against gravity, the rehabilitation focuses on supine forward elevation, eccentric supine elevation, and graded manual resistive exercise by the thera pist. In cases of excessive stiffness, the rehabilitation must be focused on achieving normal range of motion instead of strengthening, although gentle strength ening may continue with a greater emphasis on stretching. In progressing these patients, it is important that full end range strength be attained, and this can sometimes lag in the recovery process. In resistive exercises, particularly in elevation of the arm, the therapist must be aware of arthrokinematics. Ade quate humeral head depression is necessary to avoid impingement during the strengthening process. In the presence of a weak rotator cuff, strengthening supine and below the horizontal should be empha sized. In addition to deltoid and rotator cuff strength ening, periscapular strengthening exercises, partic ularly for the rhomboids, trapezius, and serratus anterior, should be incorporated into the program. The scapula must rotate and set adequately so that the glenoid provides a fulcrum for the head of the humerus as the arm is elevated; therefore, it is in cumbent upon the therapist to address these muscle groups in the total rehabilitation regimen following shoulder fracture. FIGURE 24. Advanced internal rotation stretching is accom plished with the use of a towel over the shoulder (left) or by holding a door and bending the knees (right). FIGURE 25. The patient reaches the top of the door jamb and walks through the doorway. FIGURES 24-27. Phase III, special stretching. FIGURE 26. External ro tation with the arm held to the side by the uninvolved extremity and the body ro tating away from the hand. FIGURE 27. Cross-body or horizontal adduction for posterior capsular stretch, with the help of the unin volved extremity applying pressure to the elbow while the patient reaches over the opposite shoulder with the involved extremity. April-June 1994 119 FIGURE 28. Standing press with the weight. FIGURE 29. Anterior del toid strengthening with an upper cut using Theraband. Motion in forward elevation should be 90 degrees. FIGURE 30. External ro tator strengthening with the elbow held at the side. The patient externally rotates against the Theraband. FIGURE 31. Middle del toid strengthening and cuff strengthening are accom plished by abducting with resistance supplied by the Theraband. FIGURES 28-33. Phase III, strengthening. SUMMARY The understanding of early controlled range of motion adapted to the stability of the fracture is cru cial in postfracture shoulder therapy. The diagnosis and management of proximal humeral fractures have been reviewed. 120 JOURNAL OF HAND THERAPY FIGURE 32. The internal rotator is strength ened by attaching the Theraband to a doorknob and internally rotating. FIGURE 33. The posterior deltoid is strength ened by hyperextending the shoulder with a bent elbow. Progressive resistance continues until functional strength is attained. In addition, the aspects of therapy and the per tinent rehabilitation protocols are outlined. Although this article outlines standard treatment approaches, the specific therapy should be individualized to the patient's goals and abilities, and continuous com munication between all persons involved in the pa tient's care is essential for achieving the best possible outcome. BIBLIOGRAPHY 1. Ahlgren 0, Appell H: Proximal humeral fractures. Acta Or thop Scand 44:124-125, 1973. 2. Austin MD: Fracture hazards, reporting 3 uncommon fracture cases, with use of original crucifixion splint in fracture of surgical neck of humerus. J Indiana Med Assoc 16:129, 1923. 3. Bardenheruer FH, cited by Lorenz H: Deut Zeit Chir 58:593, 1900-1901, 1949. 4. Bigliani LV: Fractures of the proximal humerus. In Rockwood CA Jr, Matsen FA II (eds): The Shoulder, vol. 1. Philadelphia, W. B. Saunders, 1990, pp . 278-334. 5. Bigliani LV: Treatment of 2- and 3-part fractures of the prox imal humerus. Chicago, American Academy of Orthopaedic Surgeons, Instructional Course Lectures, 38:231-244, 1989. 6. Cofield RH: Comminuted fractures of the proximal humerus. Clin Orthop 230:49-57, 1988. 7. Cuomo FA, Flatow EL, Maday MG, Miller SA, McIlveen S}, Bigliani LV: Open reduction and internal fixation of 2- and 3Cpart displaced surgical neck fractures of the proximal hu merus. J Shoulder Elbow Surg 1(6):287-295, 1992. 8. Hagg 0, Lundberg B: Aspects of prognostic factors in com minuted and dislocated proximal humeral fractures. In Bate man JE, Welsh RD (eds): Surgery of the Shoulder. Philadel phia,B. C. Decker, 1984. 9. Hawkins RJ, Bell RH, Gurr K: The three-part fracture of the proximal part of the humerus. Operative treatment. J Bone Joint Surg 68A:141O-1414, 1986. 10. Hughes M, . Neer CS: Glenohumeral joint replacement and post~operative rehabilitation . Phys Ther 55:850-858, 1975. 11. Jaberg H, Warner JP, Jakob R: Percutaneous stabilization of unstable fractures of the humerus. J Bone Joint Surg 74A:508- 551, 1992. 12. Jakob RP, Kristiansen T, Mayo K, Ganz R, Muller ME: Clas sification and aspects of treatment of fractures of the proximal humerus. In Bateman JE, Welsh RP. Surgery of the Shoulder. Philadelphia, B. C. Decker, 1984, pp. 330-343. 13. Kristiansen B, Christiansen SW: Plate fixation of proximal hu- meral fractures . Acta Orthop Scand 57:320-323, 1986. 14. Kristiansen B, Kofoed H: External fixation of displaced frac tures of the proximal humerus. J Bone Joint Surg [Br] 69B:643- 646, 1987. 15. Lentz W, Meuser P: The treatment of fracture of the proximal humerus. Arch Orthop Trauma Surg 96:283-285, 1980. 16. Lundberg BJ, Svenungren-Hartwig E, Witmarck R: Indepen dent exercises versus physiotherapy in non-displaced proximal humerus fractures . Scand J Rehabil Med 11:133-136, 1979. 17. Neer CS II: Displaced proximal humeral fractures, part II. Treatment of 3-part and 4-part displacement. J Bone Joint Surg 52A: 1090-1103, 1970. 18. Neer CS II: Shoulder Reconstruction. Philadelphia, W. B. Saunders, 1990, pp. 143-271. 19. Neer CS II, McCann PD, MacFarlane EA, Padilla N: Earlier passive motion follOWing shoulder arthroplasty and rotator cuff repair.A prospective study . Orthop Trans 11 :231, 1987. 20. Norris RT: Fractures of the proximal humerus and dislocation of the shoulder. In Brown BD, Jupiter JB, Levine AM, Trafton PG (eds): Skeletal Trauma, vol. 2. Philadelphia, W. B. Saun ders, 1992, pp. 1201-1290. 21. Paavolainen P, Bjorkenheim JM, Slatis P, Paukka P: Operative treatment of severe proximal humeral fractures. Acta Orthop Scand 54:374-379, 1983. 22. Rose SH, Melton LF, Morrey BF, et al: Epidemiologic feature of humeral fracture. Clin Orthop 168:24-30, 1982. 23. Rosen H: Tension band wiring for fracture dislocation of the shoulder. Proceedings of the 12th Congress of the Interna tional Society of Orthopaedic Surgery and Traumatology, Tel Aviv, Oct 1972, pp. 939-941. 24. Rush LV: Atlas of Rush pin techniques . Meridian, Michigan, Beviron, 1959. 25. Stable forth PG: Four-part fractures of the neck of the humerus. J Bone Joint Surg [Br] 66B:104-108, 1984. 26. Thompson FE, Winant EM: Comminuted fracture of the hu meral head with subluxation. Clin Orthop 20:94-97, 1961. 27. Zuckerman JD, Flugrted DL, Teitz CC, et al: Axillary artery injury as a complication of proximal humerus fractures. Clin Orthop 189:234-237, 1984. o CLINICAL SPECIALTY EDUCATION 0 Focus on Splinting Hands-On Workshop Instructor: Patricia K. Roholt PT, CHT Dayton, OH· July 9-10 Dallas, TX· Oct. 29-30 Boston, MA • Nov. 10-11 Presents Upper Extremity Rehab: An Integrated Approach Instructor: Joseph DiGiovanna, PT, OCS Kansas City, MO· Aug. 20-21 Dallas, TX· Sept. 24-25 Dayton, OH· Oct. 15-16 Washington, DC· Nov. 19-20 Fundamentals of Burn Rehabilitation Instructors: Reg Richard MS, PT - Marlys Staley, MS, PT Boston, MA • July 28-29 Las Vegas, NY • Oct. 27-28 Introduction to Hand Therapy Fundamentals of Hand Rehabilitation Instructors: Patricia K. Roholt, PT, CHT - *Brad Kirkes, OTR Dayton, OH· July 7-8 * Los Angeles, CA • July 22-23 Chicago, II.. • Aug 4-5 Washington, DC· Sept. 1-2 Detroit, MI· Sept. 15-16 * Portland, OR· Sept. 23-24 Charlotte, NC· Sept. 29-30 Las Vegas, NV· Oct. 13-14 Dallas, TX· Oct. 27-28 Minneapolis, MN· Nov. 17-18 * San Jose, CA· Nov. 18-19 Miami, FL· Dec. 1-2 For more infonnanon call: 513-341-5329 April-June 1994 121