THE SURGICAL TREATMENT OF G. From The results of surgery the Spinal R. Service, with Scheuermann’s in 59 patients mature pre-operative patients treatment combined and posterior It is stressed The treatment ofScheuermann’s kyphosis is usually servative. However, with marked deformity, or resistant to medical treatment, or with neurological cit. surgery may be indicated. Opinions relative merits ofposterior spinal surgery bined 1969; anterior Bradford et al. 1980; and differ alone posterior spinal surgery 1975; Taylor et al. 1979; et al. Herndon et 1981). al. The Institut Ccilot, Berck kyphosis P/age are reported at an average immature patients, in whom the iliac apophysis alone is adequate and is followed by little loss anterior is important. KYPHOSIS D. C. CHOPIN Surgery of 56 months. These show that in skeletally to the body of the ilium, posterior fusion skeletally SPECK, SCHEUERMANN’S results that conpain defi- surgery is recommended. the indications Patients tory results and radiographs severity of pain The clinical (Stagnara Bradford Stagnara’s technique the median sagittal vertical plumb-line medical studied and deformity assessment before ofdeformity about T7; the horizontal plumb-line to the skin patients maximum cervical and lumbar lordosis prominence of the sacrum. The term used to describe these measurements. for surgery and to determine the best technique of the kyphosis. PATIENTS lumbarf/#{234}c/ies Between 1969 and 1982, 65 patients were operated upon for severe Scheuermann’s kyphosis in the Spinal Surgery Service at the Institut Calot. Sixty-one medical records were available for this study: and 16 female. The mean recognised was 1 3 years average age at surgery there were 45 male patients age at which the deformity (range 6 to 20 years) and was I 7 years 5 months history of was the ( I 21 to 45 years). There was a family kyphotic spinal together of records, labora- to and (1969), deviation plane. The patient which touched the tions performed at the Institut Calot have therefore been reviewed in order to refine the criteria used in selecting for correction a period are limited. METHOD and their reviewed as to the and com- of opera- In all cases for surgery were follow-up has not yet fused of correction. For distance over the give compare the after surgery. was made using being assessed stood against thoracic spine in a at was measured from the spinous processes at the and the posterior fl#{232}che (arrow) The was and cervical an indication of the magni- tude ofthe kyphosis, while the lumbarfl#{234}c/ie alone shows the compensatory lumbar lordosis. Radiographs were measured for kyphosis. lordosis, vertebral deformity and scoliosis at four time intervals. These were pre-operative. initial postoperative in a plas- terjacket. 12 months after operation without any brace, and at final follow-up. All films were taken standing. In addition, pre-operative flexibility of the kyphosis was assessed by an elongation test. This is a lateral radio- deformity in 38% of patients, and 15% were noted to have some degree of mental retardation; 41 % had hamstring contractures on admission for surgery. Other muscle contractures were not observed. Although all patients had a significant kyphosis of graph taken with the patient on an auto-traction table (traction to head and pelvis) with a bolster under the apex of the kyphosis and the patient exerting a longitudinal traction force ofabout 20 kg. Treatment. The surgical treatment can be divided into at least 60 (Cobb angle), 46% had pain as their presenting complaint and a further 16% admitted to some pain. The pain was situated either over the kyphosis or in the three lumbar region and No patient presented There G. Speck. FRACS Suite 17, Cabrini Victoria, Australia. R. was usually of a mechanical with neurological deficit. Orth, Medical C. Chopin, MD, Chefde Service Chirurgie Orthopedic Plage, France. D. Requestsfor reprints should Orthopaedic Centre, Service du Rachis, be sent 1986 British 030l-620X/862034 Editorial Society $2.00 VOL. 2. MARCH 68-B. No. Surgeon Isabella Street. 986 to Dr of Bone Institut nature. Joint is no thoracic normal Malvern Calot. D. C._Chopin. and phases: preparatory. operative and reparative. The preparatory phase is intended to increase the flexibility of the kyphosis within the physiological range. Surgery F-62600 3144, Berck agreement as to the amount kyphosis but the consensus limit of 40 to 45 (Roaf 1980; Stagnara ci al. 1982). tractures. auto-elongation of the normal suggests an 1960; Bradford Physiotherapy to stretch and night traction were upper ci al. conused routinely. Plaster jackets were used for progressive correction of the kyphosis in those curves which. initially. were not sufficiently flexible; these jackets were made on a Cotrel to diminish casting the frame lumbar with the lordosis. patient The positioned patients so as were then 159 190 G. progressively padded to reduce and then the thoracic kyphosis. eight weeks. An elongation test tion near to confirm physiological The rection and three a scoliosis used on the the convexity. usually took six to done before operacould with with inferiorly. of more the This was be lordosis reduced was to maintain of the preparatory this was achieved rods, generally superiorly lumbar bilateral at least 30 concave side with Posterior fusions to Scheuermann’s Risser sign Stage Table werejudged V gives an analysis of to be skeletally mature: Table the corphase. In four posteriorly was mature patients surgery. Anterior autogenous rigid part nine had disc (range anterior excision tibia and/or of the kyphosis. bone rod grafting and after surgery and the following analysis ofthese patients. Deformity. All the patients were 5.4 (2.0 13.0) on the Lumbar 7.3 (4.0-12.0) 4.3 (2.0 8.0) The fl#{232}cherepresents line which just touches the lordosis Table II. Overall 515 results based with improvement was reduced Kyphosis the then are Lumbar a follow-up based Table patients lordosis III. Average (47 patients) with ofthe kyphosis. The height ofthe by 40% and the lumbar lordosis 20 corrected toSS by 36 (Table to 41 and the lumbar on an the clinical kyphosis also was lordosis by II). at final kyphosis follow-up corrections of P<0.l is within the normal range (Stagnara et a!. 1982). Negative values for the apical vertebrae were found in two patients, mdicating wedging in the reverse direction to that found in in skeletally immature ( degrees) 38 33 30 62 2+3(n=34) 74 39 34 37 56 (n=6) 75 40 42 42 4 * The have numbers fusion by 5 Table IV. 40 I to 4 describe appeared how radiographically: Correction shown of many quarters of the iliac non-appearance vertebral by the amount is indicated deformity ofwedging in skeletally ofapical Average vertebra wedging V. Results of surgery by 0. and immature Final 5.7 13.5 (5 to 25) (-3to 9.7 4.5 in skeletally Kyphosis apophysis (in degrees) Pre-operative Site of fusion of4.5 of 55 (34-83) 78 1 (n=7) Stage shown value 41 (13 83) 12) Follow-up (months) Table average 77 (60-I Final between the groups are not statistically significant. The effect of surgery on the wedging of the vertebral body in the skeletally immature patients (Risser sign the Final Postoperative sign* Wedging and Pie-operative analysis of the corsign at the time of in Table IV. The t-test, a significance (degrees) Elongation test surgery in skeletally immature patients. Good correction of the kyphosis is shown on the pre-operative elongation test, and the immediate postoperative kyphosis measurement is similar. The slight differences in loss of correction 4 or less) is shown have, in a paired lordo- Preoperative patients, Table III shows a more detailed rection obtained related to the Risser (lumbar 75 (44-108) correction of Risser 0+ satisfied from a plumbto the apex of results ofsurgery on 35 patients) the reduced by 40% (Table I, Figs I to 6). The normal value given for cervical and lumbar lordoses is 3 cm for each. Assessing the overall results, radiologically the kyphosis was the distance the kyphosis Curvature Stage results who sign (cm) 8.9 (4.5-ISO) Kyphosis 12 months’ a (45 Cervical fusion consolidates and, in the skeletally immature, when the vertebral body remodels. During the first two weeks after operation the patients were nursed supine, followed patients deformity was surgery in four patients, being two to four weeks. is the period during which RESULTS had at least of Final system over by an average ofsix months in a plasterjacket further 12 months in a plastic brace. the I 2 patients 10 with a Risser Pre-operative rib was performed in the most The anterior surgery was per- formed after the posterior delay between the operation The reparative phase Fifty-nine correction patients had sign Stage I. Fl#{232}che 4 to I 3). Seven skeleas well as posterior and Clinical Correction full extent of the instrumented levels using autogenous iliac crest bone graft supplemented, in five of the earlier cases, with a tibial graft. The average number of levels fused tally I. one of these the other a Risser patients , a distraction a compression were performed disease; 0 and patients) Harrington three hooks In a further than D. C. CHOPIN first kyphosis aim of the operation obtainable at the end 50 patients compression with that the levels. R. SPECK, mature patients ( I2 14) patients) (degrees) Follow-up Anterior + posterior (,i=6) Posterior (n=6) only Preoperative Postoperative Final (months) 82 (60-I 44 45 50 12) 83 (60- 44 58 68 107) THE JOURNAL OF BONE AND JOINT SURGERY THE Fig. SURGICAL TREATMENT I Fig. VOL. 68 B, No. male with 2, MARCH 191 KYPHOSIS 2 Fig. 5 Fig. 4 A 17-year-old OF SCHEUERMANN’S Scheuermann’s 1986 kyphosis measuring after operation. 75 from T8 to Tl2. Figures with correction maintained 1 to 3-Before at 40 operation. Fig. 3 Fig. 6 Figures 4 to 6-Three years 192 G. Table l. Pitients s ith at least Risser 1.evels Case sign fused Kyphosis levels I 0 TIIL2 T6L2 2 I T5 T4l2 3 3 T3LI 4 3 T2 5 3 6 I0 loss of correction. R. SPECK, showing C. CHOPIN its cause Angle II I). of kyphosis (degrees) Postoperative Final Reason 63 28 45 Short fusion 78 34 55 Short fusion Initial for failure T4 12 66 19 35 Short fusion-subsequently extended to L2 II T4 II 60 28 47 Short fusion-subsequently extended to L2 T2 12 T3 LI 78 37 64 Infection 5 T3 12 T4 10 107 54 85 Wound 7 5 T410 T3 II 80 48 60 Short fusion 8 5 T5 12 T3 12 85 60 83 Short fusion 9 5 T5 12 T3 12 66 36 62 Short fusion Stage 5. and two with a Risser sign Stage 4 but with fused vertebral apophyses at operation. The six patients who had both anterior and posterior surgery had only I loss details of blood replacement recorded in 23 posterior ofcorrection. VII. fusion highly whereas alone lost significant. the six patients 14 of Three who correction; patients had this the in difference is latter group (Cases 7, 8 and 9 in Table VI) had an inadequate of fusion and another patient had an infection a wound breakdown, rods I 6 months after loss eventually operation, ofcorrection from Loss of correction patients; their details 2 had an inadequate an extension ofthe requiring followed length kyphosis the final had an removal total kyphoses infection with of the rods Although present significant in 12 patients 6; Table occurred in Table grossly abnormal. Stapht’lococcus aureus seven after months scoliosis of pre-operatively, gression after fusion. Pain. Twenty-eight patients had, tion. significant back pain requiring Case requiring operation. more than 20 none showed Table the time treatment. was situated either in the thoracic spine sis or in the lumbar spine; it was usually ture and fatigue. A further 10 patients was pro- of operaThe pain over the kyphorelated to poshad less severe pain. in At follow-up the lumbar patients was had a man only who 10 patients and two in mild complained the thoracic of pain: spine. eight Four and working; one symptoms regularly carried were 50 kg loads. Another patient had a road traffic accident five years after operation and sustained a severe crush fracture of L3 with an angular kyphosis of 20 and lumbar pain. The other five patients who still had pain at follow-up all had residual kyphoses of more than 60 There were six patients in the . whole series five ofthese Complications. with a final had pain. Regarding kyphosis blood of more loss at than operation, with 60 and the infection final haematocrits were and in five combined these significant 6 in Table 5 and VII. Blood replacement after Site of operation 5 and are shown There were four instances of infection: required removal of the implants and Posterior (ii=23) only Anterior (n5) + One at fusions: I and of fusion. Cases 3 and 4 show to subjacent levels, although are not posterior and fusions tion was successfully treated biotics and suction irrigation. VI). in nine VI. Cases mately and were associated kyphosis (Cases length following removal of the by progressive 54 to 85 (Case of at least 10 are shown anterior posterior breakdown posterior patient had in Table three ultitwo of these progression VI). The fourth with of the infec- debridement, anti- surgery Total blood transfused (units) Final haematocrit (per cent) 5.4 (48) 37 (32 1 2.8 (8-18) 41 neurological 48) (32-45) complications follow- ing surgery, illustrating the difficult problems which may be encountered in older patients with significant associated scoliosis. He was a man of45 at the time of operation, with a 1 12 kyphosis from T3 to Tb, a right thoracic scoliosis from T5 to Tl0 of62 and a vital capa- ‘, city 47% of normal, He had one month of halo-traction. In January 1981 he had osteotomies with a contraction rod from T3 distraction rod from TI to L I He had no pre-operative six posterior to Tl0 and neurological . a deficit immediately after operation but four hours later he developed an incomplete spinal cord lesion of BrownS#{233}quard type. He had motor loss on the right side and sensory loss on the left. He was immediately returned to theatre and neurological with all implants recovery. halo-traction, then were removed, resulting in full For three weeks he continued had an anterior fusion to TlO using fragmented rib grafts and tibial from T3 to T9. Two weeks later a posterior THE JOURNAL OF BONE AND from strut fusion JOINT T2 grafts from SURGERY THE C7 to LI was performed, contractor from T4 had to be reattached follow-up, using after compared was 43 , TREATMENT a distraction rod OF with operation, the with the and stable. kyphosis was postoperative He had no film, neuro- thoracic demonstrates especially the the in fragillower Five patients developed two before pressure and three with conservative treatment. There were no thrombo-embolic deaths due to surgery. sores after under operation. nor treatment of or simply observation, kyphosis is certainly exercises, depending on the 0. 1 or 2, we feel that rarely By increasing the flexibility prevent any in patients of growth. skeletally immature Stage 3 or 4 and a severe thoracic or thoracolumbar posterior outlined. The fusion if ever of the patients symptoms and technique of the posterior ofhooks and possible should five inferiorly. should be placed under the ity ofthe lowermost thoracic VOL. 68-B, No. 2, MARCH 1986 4 and anterior However, and it is lower fusion part limit includes the apex of the curve, and of the kyphosis to inferiorly. In assessing the adequacy of correction it is worth recalling the high incidence of pain in patients with a residual kyphosis of more than 60 Inadequate correction is especially likely to occur in this group of skeletally mature patients where the curve is less mobile, if there is inadequate preparation for surgery or if the surgery is observation, severe cases, with kyphosis be avoided. bracing requiring for the patients when required; major surgery earlier and by careful in this can. way in most with a Risser sign preparatory treatment instrumentation is REFERENCES Bradford DS, Ahmed KB, Moe JH, Winter RB, Lonstein JE. The surgical management of patients with Scheuermann’s disease: a review of twenty-four cases managed by combined anterior and posterior spine fusion. J Bone Joint Surg [Am] 1980:62 A:705 12. Bradford DS, Moe JH, Montalvo FJ, Winter RB. Scheuermann’s kyphosis and roundback deformity: results of Milwaukee brace treatment. J Bone Joint Surg [Am] l974:5 A : 74U 58. Bradford DS, Moe JH, Montalvo FJ, Winter RB. Scheuermann’s kyphosis: results of surgical treatment by posterior spine arthrodesis in twenty-two patients. J Bone Joint Surg [Au:] 1975:57 A: 439 48. Stagnara P. Deviations %lt’rlCluir (Paris). the full length of the kyphosis respectively. In operating on number superiorly to the ofcorrection over loss should of the The anterior the most rigid extends loss Herndon WA, posterior 125 30. articular process full correction combined results. a Risser Stage fusion is then performed in compresin tension as occurs if it is performed as important. The instrumentation and fusion must extend over the whole length of the kyphosis. A comparision of the postoperative loss of correction between 2 1 patients with a short fusion and the 38 with a fusion extending ferior allow with sign is surgery mdispine using the kyphosis, especially in the lower spine, we recommend a following (those a Risser inadequate to mobilise the curve. Finally, a plea should be made more effective management of these not surgical. physiotherapy methods already outlined, one can usually achieve a physiological kyphosis which can be treated with a brace while awaiting maturation of the vertebral body and the completion For system. Anterior sion rather than especially severity (Stagnara, du Peloux and Fauchet 1966; Bradford et al. 1974). In the skeletally immature patient with a Risser sign Stage cated. patients with . Scheuermann’s with a curve of less than 60 Treatment may be with a brace, those flexibility, especially in younger patients. The posterior surgery is performed as previously described but with one important modification of the facet-joint excision: the superior and inferior processes are both excised to allow reduction of the kyphosis with the compression All DISCUSSION The mature 5 and fused ring apophyses) we believe posterior surgery offers the best the healed problems skeletally Stage the first procedure. of the kyphosis. spine. plasterjackets, For sign I 93 KYPHOSIS not essential that the anterior surgery be performed first, except in the rare case of anterior synostosis. The preparatory phase still allows some degree of increase in There was one case of a broken rod above the lower hook at six months. The kyphosis progressed from a post-operative value of 33 to 40 at 12 months but showed no further progression at two years. Seven fractures of transverse processes occurred during these operations: two each at TI 1 and Tl2 and one each at Tl, T2 and T5. This ity of the transverse processes SCHEUERMANN’S a to Tl 1; the upper distraction hook to TI after a further two weeks. At 41 months 73 a loss of 3 and his scoliosis logical dysfunction. SURGICAL gives a 6.6 and 2.6 the facet joints the in- be generously kyphosis. The resected maximum be used, preferably The hooks below laminae in view of the transverse processes. to five T9 fragil- Roaf Emans JB, Micheli U, Hall fusion for Scheuermann’s R. Vertebral [Br] 1960:42 growth B:40 and 59. JE. Combined anterior and kyphosis. Spine 1981 :6: its mechanical control. et deformations Appareil Loeo,noteur sagittales 1969:4. J Bone Joiiui du rachis. 1 .01 : I 5865 Surg Encyel E 10. Stagnara P, De Mauroy JC, Dran G, et a!. Reciprocal angulation vertebral bodies in a sagittal plane: approach to references for evaluation ofkyphosis and lordosis. Spine 1982:7:335 42. of the Stagnara P. du Peloux J, Fauchet R. Traitement orthop#{233}dique ambulatoire de la maladie de Scheuermann en p#{233}rioded’#{232}volution. Reu’ ChirOrthop 1966:52:585 600. Taylor TC, Wenger DR, Stephen J, Gillespie management of thoracic kyphosis in Surg[Am] 1979:61 A:496 503. R, Bobechko adolescents. WP. Surgical J Bone Joint
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